labra

• Contardo, Juan; Lillo, Maria Antonieta Labra & Cubillos, Guillermo (2026). Environmental Enrichment Increases Foraging Duration in Chilean Flamingos Under Human Care. Journal of Applied Animal Welfare Science. ISSN 1088-8705. 29(1), s. 144–159. doi: 10.1080/10888705.2025.2524415. Fulltekst i vitenarkiv
• Rosa-Silva, Edgar De La; Labra, Antonieta & Hernández-Gallegos, Oswaldo (2025). Distress vocalizations of Aspidoscelis costatus costatus (Squamata: Teiidae): when does this behavior occur in the ontogeny? Current Zoology. ISSN 1674-5507. s. 1–9. doi: 10.1093/cz/zoaf054. Fulltekst i vitenarkiv Vis sammendrag

  Vocal sound production has been reported in juveniles of mammalian, avian, and nonavian sauropsid lineages. In this last taxon, studies concerning the ontogenetic development of vocalizations have mainly been focused on Crocodylia and Testudines. Less is known about Squamata, though this behavior has been recognized in a few juvenile gecko species, albeit only characterized in the Mediterranean House Gecko (Hemidactylus turcicus). In the present study, we identified the vocalizations emitted by the juvenile Balsas Basin Whiptail lizard (Aspidoscelis costatus costatus), a species endemic to Mexico. We sought to characterize the spectro-temporal variables of the juveniles' calls and determine whether these vocalizations occur during early ontogeny or are associated with a minimum snout-vent length. The study included 74 individuals (41 hatchlings, 33 juveniles); only 21 juveniles vocalized (16 females and 5 males). The calls possessed simple and complex modulation patterns and were only emitted when the individuals were seized. Thus, we classified them as distress calls. Sound production occurs before the first year of life. However, hatchlings did not vocalize, and individuals required a minimum snout-vent length to emit sound. Three nonmutually exclusive hypotheses are proposed to interpret these findings: 1) the vocal structure responsible for sound production develops during ontogeny; 2) juveniles do not have enough energy to vocalize, as this energy is primarily allocated for growth and maturation; and 3) juveniles only vocalize once an adequate size has been obtained, which allows calls to reach an effective intensity and/or duration.

• M., Weymann,; N., De La Jara,; G., Pavez,; N., Morales,; M.V., Valdivia, & Labra, Antonieta (2025). The first evidence of viviparity in the lizard Liolaemus reichei (Squamata: Liolaemidae). Phyllomedusa - Journal of Herpetology. ISSN 1519-1397. 24(1), s. 117–123. doi: 10.11606/issn.2316-9079.v24i1p117-123. Fulltekst i vitenarkiv
• Dubiner, Shahar; Aguilar, Rocío; Anderson, Rodolfo O.; Arenas Moreno, Diego M.; Avila, Luciano J. & Boada-Viteri, Estefania [Vis alle 65 forfattere av denne artikkelen] (2024). A global analysis of field body temperatures of active squamates in relation to climate and behaviour. Global Ecology and Biogeography. ISSN 1466-822X. 33(4). doi: 10.1111/geb.13808. Fulltekst i vitenarkiv Vis sammendrag

  Aim Squamate fitness is affected by body temperature, which in turn is influenced by environmental temperatures and, in many species, by exposure to solar radiation. The biophysical drivers of body temperature have been widely studied, but we lack an integrative synthesis of actual body temperatures experienced in the field, and their relationships to environmental temperatures, across phylogeny, behaviour and climate. Location Global (25 countries on six continents). Taxa Squamates (210 species, representing 25 families). Methods We measured the body temperatures of 20,231 individuals of squamates in the field while they were active. We examined how body temperatures vary with substrate and air temperatures across taxa, climates and behaviours (basking and diel activity). Results Heliothermic lizards had the highest body temperatures. Their body temperatures were the most weakly correlated with substrate and air temperatures. Body temperatures of non-heliothermic diurnal lizards were similar to heliotherms in relation to air temperature, but similar to nocturnal species in relation to substrate temperatures. The correlation of body temperature with air and substrate temperatures was stronger in diurnal snakes and non-heliothermic lizards than in heliotherms. Body-substrate and body-air temperature correlations varied with mean annual temperatures in all diurnal squamates, especially in heliotherms. Thermal relations vary with behaviour (heliothermy, nocturnality) in cold climates but converge towards the same relation in warm climates. Non-heliotherms and nocturnal species body temperatures are better explained by substrate temperature than by air temperature. Body temperature distributions become left-skewed in warmer-bodied species, especially in colder climates. Main Conclusions Squamate body temperatures, their frequency distributions and their relation to environmental temperature, are globally influenced by behavioural and climatic factors. For all temperatures and climates, heliothermic species' body temperatures are consistently higher and more stable than in other species, but in regions with warmer climate these differences become less pronounced. A comparable variation was found in non-heliotherms, but in not nocturnal species whose body temperatures were similar to air and substrate irrespective of the macroclimatic context.

• Reyes-Olivares, Claudio; Charlin, Dominique; Penna, Mario & Labra, Antonieta (2024). Acoustic, visual, and chemical social behaviours of the Chilean Marked Gecko (Garthia gaudichaudii). Salamandra (Frankfurt). ISSN 0036-3375. 60(3), s. 168–182. Fulltekst i vitenarkiv
• Chocobar, Vanesa; Labra, Antonieta & Valdecantos, Soledad (2024). Explorando el reconocimiento químico recíproco madre-cría en un lagarto Liolaemus vivíparo. Cuadernos de Herpetología. ISSN 0326-551X. 38(2). doi: 10.31017/CdH.2024.(2023-011. Fulltekst i vitenarkiv Vis sammendrag

  To our knowledge, there are no studies of mother-offspring recognition in Liolaemus lizards, even though many species have a refined discrimination capacity based on chemical signals, and some of them are viviparous with a close relationship between mothers and offspring. We studied the reciprocal chemical mother-offspring recognition in the viviparous species Liolaemus zullyae, evaluating whether both mothers and offspring can discriminate between their consanguineous relative from another who is not genetically related. Six females gave birth in the laboratory. Once the offspring were born, crossover experiments were carried out. The results suggest that mothers showed no clear evidence of discrimination of their own and other´s newborns. In contrast, newborns rubbed their faces for longer when scents were from other females than from their own mothers, suggesting that newborns may recognize their mothers. We discuss the asymmetric mother-offspring recognition detected in this study.

• Contardo, Juan & Labra, Antonieta (2024). Mapping an endangered living fossil's distribution, threats, and protection coverage. Conservation Science and Practice (CSP). 6(4). doi: 10.1111/csp2.13106. Fulltekst i vitenarkiv Vis sammendrag

  Species Distribution Models have emerged in recent decades as a powerful tool for biodiversity research, as they allow, for example, assessing the status of species in their whole distributions. These models have been particularly helpful in demonstrating that amphibian populations are at high risk, with many declining and others already extinct. Here, we assessed the potential distribution of the helmeted water toad (Calyptocephalella gayi), an endemic Chilean amphibian considered a living fossil and cataloged as vulnerable, which requires significant conservation efforts. We modeled the species' potential distribution using the Maximum Entropy (Maxent) approach and determined the overlap with national protected areas. In addition, we conducted a geospatial risk analysis to estimate the threat level to which this toad is being subjected. The potential distribution of C. gayi ranges from 28°S to 44°S, mainly explained by altitude, mean diurnal temperature range, slope, and distance to water bodies. Protected areas only cover 3.55% of the species' potential geographic distribution, which is of concern, considering that the geospatial risk analysis showed that 60.61% of C. gayi's distribution is subjected to extreme and high risks. We discuss how these results are relevant to focusing and directing efficient protection and conservation efforts for this species shortly.

• Rosa-Silva, Edgar de la; Lillo, Maria Antonieta Labra & Hernández-Gallegos, Oswaldo (2023). Description of Vocalizations From the Endemic Mexican Lizard, Aspidoscelis costatus costatus (Balsas Basin Whiptail). Herpetological Conservation and Biology. ISSN 2151-0733. 18(1), s. 1–8. Fulltekst i vitenarkiv Vis sammendrag

  Acoustic communication has been reported in the order Squamata, although there are still few studies on this behavior, which constrain our understanding of the functionality and evolution of vocalizations produced in Squamates, especially in the clade Unidentata. The Balsas Basin Whiptail (Aspidoscelis costatus costatus) is an endemic lizard to the western Mexican area, which has been anecdotally reported to vocalize. We took the first step in understanding the functionality of the sound production of this species by determining when individuals vocalize, characterizing these sounds by measuring the spectro-temporal variables, and assessing the effect of the temperature on vocal production. We collected 19 female and six male A. c. costatus and obtained 24 vocalizations from seven females and four males. Vocalizations were tonal, short, and relatively low-pitched with several harmonics. Individuals vocalized when caught or cornered, which we define as distress calls. At high body temperatures, lizards vocalized more than those at lower body temperatures. Finally, we compared the vocalizations produced by A. c. costatus with those reported for other lizard species, especially with the anecdotal reports within the genus Aspidoscelis.

• Lillo, Maria Antonieta Labra (2023). Population Scent Discrimination in Two Liolaemus Lizard Species: Exploring Ethological Isolation. Diversity. 15(7), s. 1–15. doi: 10.3390/d15070831. Fulltekst i vitenarkiv Vis sammendrag

  Reproductive isolating barriers are a crucial element in the speciation process. From these barriers, and among those acting early in the speciation process (premating), the ethological ones can play a pivotal role in isolating populations or closely related species. In fact, the high diversity of some taxa has been correlated with an elevated divergence in sexual signals, which facilitates isolation. The present study explored whether variation in chemical signals may contribute to the high diversity of Liolaemus lizards, a genus with more than 290 species. Specifically, population scent discrimination was investigated in two sympatric species, L. tenuis and L. lemniscatus, studying the response of closely located populations most likely from the same genetic lineages. Lizards of both species discriminated between scents of their own and different populations, and in some cases, scents from their own population were preferred. These results suggest a fast evolution of scents and/or of their discrimination, implying that the ethological barriers involving the chemical modality may evolve fast. The studied species, however, differed in the strength of the exhibited population scent discrimination, suggesting that the ethological barriers may evolve at different rates across species. It can be concluded that ethological barriers involving chemical modality may disrupt species’ cohesion, potentially contributing to Liolaemus diversification, in synergy or not with geographical barriers.

• Ebensperger, Luis A.; Aspillaga-Cid, Antonia & Lillo, Maria Antonieta Labra (2023). Scientific impact of Chilean-based animal behavioralists is positively associated with co-authorships from developed countries, high impact factor journals, but not with gender. Revista Chilena de Historia Natural. ISSN 0716-078X. 96, s. 1–11. doi: 10.1186/s40693-023-00121-5. Fulltekst i vitenarkiv Vis sammendrag

  Background Previous bibliometric studies in scientific researchers from developed countries generally support that sharing efforts during research enhances productivity and impact and suggest these effects may be important for researchers from less developed countries exhibiting more exiguous science budgets. We examined whether researchers in the field of animal behavior in an economically less developed country compensate for this burden by collaborating with researchers from developed countries, and whether this effect is gender specific. Methods We quantified collaborations of 30 Chilean-based focal animal behavioralists with peers from developed countries based on co-authorships within 664 animal behavior papers. We examined whether the mean number, or mean proportion of such co-authorships was positively associated with productivity (number of research papers) and impact (h-index, citations per research paper) when gender, author role (i.e., first or corresponding author), and other covariates were considered. We complemented these analyses with a survey to focal researchers to estimate the perceived relevance of collaborations with peers from developed countries. Results The h-index, but not the number of animal behavior papers published by focal researchers, increased with the mean number (but not with the mean proportion) of international co-authors from developed countries, an effect not gender-specific, but that supported the perceived importance of collaborations with peers from developed countries. The number of papers and the individual impact of focal researchers increased with academic age. The number of citations of individual papers increased with journal impact factor, year since publication, but not with the role (first or corresponding author) played by collaborators from developed countries. Conclusions Our bibliometric and survey-based approach supported that establishing collaborations with researchers from developed countries and publishing in high impact factor journals are correlated with the career-long impact of Chilean-based animal behavioralists, and that this association is not contingent on gender, or influenced by the role (first or corresponding author) played by collaborators.

• Mora, Marta; Segura, Bernardo; Mora, Felipe & Lillo, Maria Antonieta Labra (2023). POSIBLE DEPREDACIÓN DE Liolaemus torresi (IGUANIA: LIOLAEMIDAE) SOBRE LA POLILLA NATIVA Hyles annei (LEPIDOPTERA: SPHINGIDAE). Revista Latinoamericana de Herpetologia (RLH). 6(1), s. 1–4. doi: 10.22201/fc.25942158e.2023.01.449. Fulltekst i vitenarkiv Vis sammendrag

  Reportamos la primera evidencia que sugiere que el lagarto Liolaemus torresi podría consumir al insecto nativo, la polilla esfinge Hyles annei.

• Lillo, Maria Antonieta Labra & Zapata, Andrea (2023). Response of the weeping lizard to distress calls: the effect of witnessing predation. Animal Cognition. ISSN 1435-9448. 26, s. 953–961. doi: 10.1007/s10071-023-01743-8. Fulltekst i vitenarkiv Vis sammendrag

  Abstract Escaping from predation saves life, but costs energy and time. The “threat-sensitive predator-avoidance” hypothesis proposes that prey may modulate their antipredator responses, and thus the associated costs, in accordance with the magnitude of predation risk. This process requires that prey accurately assess this risk by decoding available information from various sources. For example, distress calls are uttered by prey when a predator traps them and can serve as public information on predation risk. Such is the case for the weeping lizard whose distress calls trigger immobility in conspecifics. Here, we tested whether this antipredator response of the weeping lizard is modulated by witnessing predation. We exposed lizards to distress calls alone or paired with models of a prey (conspecific), a predator (snake), or a predatory event (a snake subjugating the conspecific). Data show that the sole presence of the predator or prey paired with distress calls seems not to modulate the antipredator responses. Contrarily, witnessing a predatory event associated with calls intensified antipredator responses; lizards reduced their activity for longer and avoided proximity to the stimuli, which may decrease predation risk by reducing the likelihood of being detected by the predator. We conclude that the weeping lizard can use multisensorial public information to assess predation risk and modulate its antipredator responses.

• Díaz, Sebastián & Labra, Antonieta (2023). Exploring Sound Emission of the Lizard Pristidactylus valeriae. Animals. 13(24), s. 1–11. doi: 10.3390/ani13243813. Fulltekst i vitenarkiv Vis sammendrag

  Lizards, except geckos, are generally considered voiceless organisms, although some species emit oral sounds. For most of these “vocal lizards”, however, there is almost no information on the characteristics of the sounds, precluding exploration of the functionality and evolution of the sounds. Pristidactylus are known as “grunter lizards” since individuals emit oral sounds under predation risk. We explored the characteristics of the sounds emitted by P. valeriae, recording 17 adults and 1 juvenile when they were threatened and captured by a predator. Only adults emitted sounds with open mouths and displayed aggressive postures, e.g., biting attempts. These sounds correspond to hisses, which lack amplitude or frequency modulation. The lizards emitted longer hisses when threatened than when captured by the predator, which may provide honest information on individuals’ ability to escape. In addition, males may experience higher distress during threats since their hisses had higher aggregate entropy than those of the females. Finally, hissing has been documented in four of the five Leiosauridae genera, the family to which Pristidactylus belongs, suggesting that sound emission is ancestral to the family.

• Labra, Antonieta; Daigre, Maximiliano & Imil, Viviana (2022). Cannibalism in Microlophus Lizards. Journal of Herpetology. ISSN 0022-1511. 56(1), s. 67–74. doi: 10.1670/20-132. Fulltekst i vitenarkiv
• Mora, Marta; Bardi, Francisca & Labra, Antonieta (2021). State of knowledge of the Chilean giant frog (Calyptocephalella gayi). Gayana. ISSN 0717-652X. 85(1), s. 22–34. doi: 10.4067/S0717-65382021000100022. Fulltekst i vitenarkiv Vis sammendrag

  Globally, at least 43% of amphibian species are declining, due primarily to habitat destruction and modification, over-exploitation, emerging diseases, and invasive alien species. In Chile there are 60 species of amphibians and of these, 62% are endemic and 73% are in a conservation category, such as the Chilean giant frog (Calyptocephalella gayi), a living fossil classified as vulnerable by the International Union for Conservation of Nature (IUCN). Its decline is associated with over-exploitation for sale of its meat as a gourmet product, together with the “megadrought” experienced by Chile in recent years, and the presence of the pathogen Batrachochytrium dendrobatidis, which is causing amphibian mortalities all over the world. The sustained increase in threats to this frog species requires strategic conservation planning, which should be based on the knowledge of aspects of their basic biology. This led us to search for the available published information on this species, compiling the reachable data on the web from 1927 to 2019. We found 353 publications, and our two main conclusions about the knowledge on this species are that there is a high percentage (43%) of publications focused on studies of the morpho-physiological aspects, and that there is a significant lack of data on its ecology and natural history. We discuss how these deficiencies limit the possibility of implementing adequate management and/or conservation plans for this species, and finally propose areas of study that should provide a solid contribution towards the preservation of this species.

• Labra, Antonieta; Reyes-Olivares, Claudio; Moreno-Gómez, Felipe N.; Velásquez, Nelson A.; Penna, Mario & Delano, Paul H. [Vis alle 7 forfattere av denne artikkelen] (2021). Geographic variation in the matching between call characteristics and tympanic sensitivity in the Weeping lizard. Ecology and Evolution. 11(24), s. 18633–18650. doi: 10.1002/ece3.8469. Fulltekst i vitenarkiv Vis sammendrag

  Effective communication requires a match among signal characteristics, environmental conditions, and receptor tuning and decoding. The degree of matching, however, can vary, among others due to different selective pressures affecting the communication components. For evolutionary novelties, strong selective pressures are likely to act upon the signal and receptor to promote a tight match among them. We test this prediction by exploring the coupling between the acoustic signals and auditory sensitivity in Liolaemus chiliensis, the Weeping lizard, the only one of more than 285 Liolaemus species that vocalizes. Individuals emit distress calls that convey information of predation risk to conspecifics, which may respond with antipredator behaviors upon hearing calls. Specifically, we explored the match between spectral characteristics of the distress calls and the tympanic sensitivities of two populations separated by more than 700 km, for which previous data suggested variation in their distress calls. We found that populations differed in signal and receptor characteristics and that this signal variation was explained by population differences in body size. No precise match occurred between the communication components studied, and populations differed in the degree of such correspondence. We suggest that this difference in matching between populations relates to evolutionary processes affecting the Weeping lizard distress calls.

• Rojas, Valentina; Labra, Antonieta; Valdés, José Luis & Velásquez, Nelson A. (2021). Females of the four-eyed frog, Pleurodema thaul (Anura, Leptodactylidae), respond behaviourally to conspecific male scent. Herpetozoa. ISSN 1013-4425. 34, s. 115–120. doi: 10.3897/herpetozoa.34.e62007. Fulltekst i vitenarkiv Vis sammendrag

  Among amphibians, conspecific chemical communication has been widely studied in Caudata. Adult anurans, by contrast, have received less attention. Recently, it was shown that chemical scents are also relevant for adult anuran intraspecific communication. In this context, we evaluate whether females of the four-eyed frog (Pleurodema thaul) respond to conspecific male scents. We carried out a double choice experiment in a Y-maze. Females were repeatedly presented with the scents of several males versus distilled water. To extract the scent from males, we acoustically stimulated males and then used the water from their aquaria for the experiments. Our data suggest that females are capable of responding behaviourally to male scents, since they spent longer periods in the zones with male scent, rather than in zones with water. We propose that under natural breeding conditions, females of P. thaul may use either their chemical sense or chemical cues to facilitate their encounters with males.

• Ruiz-Monachesi, Mario R. & Labra, Antonieta (2020). Complex distress calls sound frightening: the case of the weeping lizard. Animal Behaviour. ISSN 0003-3472. 165, s. 71–77. doi: 10.1016/j.anbehav.2020.05.004. Fulltekst i vitenarkiv Vis sammendrag

  Individuals of many species utter distress calls when are attacked or trapped by a predator. These vocalizations can help them to escape but may also help conspecifics to reduce their predation risk, by inducing antipredator behaviours. Calls can encode information that modulates these antipredator responses, and the ‘nonlinearity and fear hypothesis’ proposes that complex nonlinear calls may trigger more fearful responses, because they encode higher levels of stress. We tested this hypothesis with the weeping lizard, Liolaemus chiliensis, which utters distress calls with and without nonlinear phenomena (complex and simple calls, respectively), and conspecifics respond to simple calls with antipredator behaviours. Here, we evaluated whether this species discriminates between these two types of calls, predicting higher levels of fear with complex calls. We also tested whether lizards experience less fear if calls are perceived in a safe environment, such as one full of their own scents (‘home’). Our playback experiments showed that complex calls scared the lizards more than simple calls, triggering a reduction in activity, and prolonging attempts to escape. Lizards in their own-scented environments took longer to restore their activity after hearing complex than simple calls, suggesting that this combination of stimuli was more alarming. We postulate that the predation event was unexpected at ‘home’, which together with the nonlinearity of the call made a more frightening event for the lizards.

• Fong, Lydia J. M.; Navea, Fernando & Labra, Antonieta (2020). Does Liolaemus lemniscatus eavesdrop on the distress calls of the sympatric weeping lizard? Journal of Ethology. ISSN 0289-0771. doi: 10.1007/s10164-020-00666-y. Fulltekst i vitenarkiv Vis sammendrag

  Abstract For a prey, its best ticket to stay alive is to get early and accurate information on predation risk and so, escape from predation at low cost. Some prey species have evolved the ability to eavesdrop signals intended for others, which contain information on predation risk. This is the case for the vocalizations produced by prey species when interacting with predators. Although primarily studied in birds and mammals, eavesdropping on vocal signals has been recorded in some lizard species. Here, we explored whether the lizard Liolaemus lemniscatus eavesdrops on the distress calls of its sympatric species, the Weeping lizard ( L. chiliensis ). Individuals of the Weeping lizard respond to these calls by displaying antipredator behaviours (i.e., reduced movement), and individuals of L. lemniscatus may potentially display similar defences if they decode the information contained in these calls. Our playback experiments showed that individuals of L. lemniscatus responded to the sound stimuli (distress calls and white noise), reducing their activity, but they did not discriminate between these two stimuli, suggesting that L. lemniscatus does not eavesdrop on the distress calls of its sympatric lizard species. We discuss some hypotheses to explain the lack of eavesdropping by L. lemniscatus on the Weeping lizard distress calls.

• Ruiz-Monachesi, Mario R.; Valdecantos, Soledad; Cruz, Felix B. & Labra, Antonieta (2020). Unravelling associations among chemosensory system components in Liolaemus lizards. Journal of Zoology. ISSN 0952-8369. 312(3), s. 148–157. doi: 10.1111/jzo.12819. Fulltekst i vitenarkiv
• Ruiz-Monachesi, Mario R.; Valdecantos, Soledad; Lobo, Fernando; Cruz, Felix B. & Labra, Antonieta (2020). Retreat sites shared by two Liolaemus lizard species: exploring the potential role of scents. South American Journal of Herpetology (SAJH). ISSN 1808-9798. 17, s. 79–86. doi: 10.2994/SAJH-D-18-00051.1. Fulltekst i vitenarkiv
• Valdecantos, Soledad; Ruiz-Monachesi, Mario R. & Labra, Antonieta (2020). Testing the functionality of lipids from feces in the conspecific recognition of the lizard Liolaemus chiliensis. Journal of Herpetology. ISSN 0022-1511. 54(4), s. 476–479. doi: 10.1670/19-074. Fulltekst i vitenarkiv
• Reyes-Olivares, Claudio; Guajardo-Santibáñez, Andrés; Segura, Bernardo; Zañartu, Nicolás; Penna, Mario & Labra, Antonieta (2020). Lizard predation by spiders: A review from the Neotropical and Andean regions. Ecology and Evolution. 10(20), s. 10953–10964. doi: 10.1002/ece3.6801. Fulltekst i vitenarkiv Vis sammendrag

  Vertebrate predation by invertebrates has been classically underexplored and thus underestimated, despite the fact that many arthropods consume vertebrates. To shed some light on the relevance that spider predation may have upon lizards in the Neotropical and Andean regions, we compiled the available information in the literature on this trophic interaction. We found 50 reports of spiders consuming lizards in these regions, and the 88% of these were from the Neotropical region. Spiders belong to eight families, but Ctenidae and Theraphosidae were the most frequently reported predators. Lizards belong to 12 families, and the most commonly consumed species corresponded to the families Dactyloidae (all Anolis lizards), Gymnophthalmidae, and Sphaerodactylidae. Data suggest trophic spider–lizard associations between Ctenidae and Dactyloidae, followed by Theraphosidae and Liolaemidae. The body sizes of the spiders and lizards showed a positive relationship, and spiders were smaller than their prey. We conclude that various spider taxa can be considered lizard predators and they may be ecologically important in the Neotropical and Andean regions. However, spiders of prime predation relevance seem to be those of the Ctenidae and Theraphosidae families.

• Troncoso-Palacios, Jaime; Gamboa, Margarita Ruiz de; Langstroth, Roberto; Ortiz, Juan Carlos & Labra, Antonieta (2019). Without a body of evidence and peer review, taxonomic changes in Liolaemidae and Tropiduridae (Squamata) must be rejected. ZooKeys. ISSN 1313-2989. 813, s. 39–54. doi: 10.3897/zookeys.813.29164. Fulltekst i vitenarkiv Vis sammendrag

  In his recent self-published book "Reptiles en Chile", Diego Demangel Miranda presented 13 taxonomic changes for liolaemid and tropidurid lizards. While these could be considered validly published according to the International Code of Zoological Nomenclature, we show that these taxonomic propositions lack the necessary scientific rigor in terms of replicability, specimen work, lack of peer review and that they do not follow best practices accepted by the herpetological community. Therefore, we hereby invalidate all 13 taxonomic changes proposed in this book, leaving the taxonomy unaffected. Finally, we call attention to the potentially negative consequences of using these taxonomic changes in conservation and environmental impact studies as incorrect decisions might be taken in relation to the species involved.

• Fong, Lydia Jing Mein; Labra, Antonieta & Lampe, Helene M. (2019). The role of arrival time to the breeding grounds in the song development of juvenile pied flycatchers. Journal of Ethology. ISSN 0289-0771. 37, s. 229–233. doi: 10.1007/s10164-019-00585-7. Fulltekst i vitenarkiv Vis sammendrag

  Few studies on song learning have been conducted in the field. Male pied flycatchers (Ficedula hypoleuca) seem to learn song syllables in the breeding grounds. Adult males arrive first to the breeding grounds and sing more complex songs until they have paired. Early arriving juveniles may have more opportunities to learn new syllables from adult neighbours and develop more complex songs than later arriving juveniles. However, results suggest that arrival time is not important in song complexity development, but that males develop greater song complexity (repertoire size and song versatility) regardless as they age.

• Constanzo-Chavez, Javiera; Penna, Mario & Labra, Antonieta (2018). Comparing the antipredator behaviour of two sympatric, but not syntopic, Liolaemus lizards. Behavioural Processes. ISSN 0376-6357. 148, s. 34–40. doi: 10.1016/j.beproc.2018.01.005. Fulltekst i vitenarkiv
• Labra, Antonieta & Lampe, Helene M. (2018). The songs of male pied flycatchers: exploring the legacy of the fathers. PeerJ. 6, s. 1–17. doi: 10.7717/peerj.5397. Fulltekst i vitenarkiv
• Valdecantos, Soledad & Labra, Antonieta (2017). Testing the functionality of precloacal secretions from both sexes in the South American lizard, Liolaemus chiliensis. Amphibia-Reptilia. ISSN 0173-5373. 38(2), s. 209–216. doi: 10.1163/15685381-00003106. Fulltekst i vitenarkiv
• Mora, Marta & Labra, Antonieta (2017). The response of two liolaemus lizard species to ash from fire and volcanism. Journal of Herpetology. ISSN 0022-1511. 51(3), s. 388–395. doi: 10.1670/16-105. Fulltekst i vitenarkiv
• Cadahia, Luis; Labra, Antonieta; Knudsen, Endre; Nilsson, Anna; Lampe, Helene M. & Slagsvold, Tore [Vis alle 7 forfattere av denne artikkelen] (2017). Advancement of spring arrival in a long‑term study of a passerine bird: sex, age and environmental effects. Oecologia. ISSN 0029-8549. 184(4), s. 917–929. doi: 10.1007/s00442-017-3922-4. Fulltekst i vitenarkiv Vis sammendrag

  In migratory birds, mistimed arrival might have negative consequences for individual fitness, causing population declines. This may happen if arrival time is not synchronized with breeding time, especially when earlier springs favour earlier reproduction. We studied spring arrival time to the breeding areas in a pied flycatcher Ficedula hypoleuca population in southern Norway during a 30-year period (1985–2014). We investigated trends in arrival both for the entire population and for different population fractions (e.g. early vs. late arrivals). We also studied sex and age class differences, along with repeatability of arrival. Finally, we explored how arrival is influenced by environmental conditions at the areas birds use throughout the year, using mixed-effects models and quantile regressions with individual-based data. Spring arrival advanced over five days, at a similar rate through the entire population. Males and adult birds arrived earlier than females and yearlings. Arrival was significantly repeatable for males and females. Birds arrived earlier in years with high temperature and rainfall at the breeding grounds, and low NDVI both on the Iberian Peninsula and in central Europe. Later fractions of the population showed a steeper response to these environmental variables. This intra-population heterogeneity in the responses to the environment probably stems from a combination between the different selection pressures individuals are subject to and their age-related experience. Our results highlight the importance of studying how migration phenology is affected by the environment not only on the breeding grounds but also on the other areas birds use throughout the year.

• Reyes-Olivares, Claudio; Sepúlveda-Luna, Enrique & Labra, Antonieta (2017). Philodryas chamissonis (Chilean Green Racer). DIET. Herptological Review. ISSN 0018-084X. 48, s. 865–866. Fulltekst i vitenarkiv
• Troncoso-Palacios, Jaime & Labra, Antonieta (2017). New egg laying record for Liolaemus chiliensis (Lesson, 1830) (Iguania: Liolaemidae). Herpetology Notes. 10, s. 529–531. Fulltekst i vitenarkiv
• Reyes-Olivares, Claudio & Labra, Antonieta (2017). Emisión de sonidos en lagartos nativos de Chile: el estado del arte. El Boletín Chileno de Herpetología. ISSN 0719-6172. 4, s. 1–19. Fulltekst i vitenarkiv Vis sammendrag

  Los lagartos dependen principalmente de señales químicas y visuales para comunicarse y, en menor medida, de señales acústicas, por lo que en general se ha considerado que estos reptiles no emiten sonidos. Sin embargo, representantes de diferentes familias de lagartos pueden producir sonidos a través de la boca y en distintos contextos. En Chile, los reportes sobre emisión de sonidos en lagartos son escasos y anecdóticos, por lo que en pocos casos estas señales acústicas han sido estudiadas en detalle. Pese a ello, el conocimiento sobre la emisión de sonidos de algunas especies nativas ha aumentado durante los últimos años. El objetivo de la presente revisión es analizar el estado del arte sobre la emisión de sonidos en lagartos nativos de Chile y conjuntamente, incentivar el desarrollo de investigación relativa a este particular modo de comunicación. Para ello, realizamos una recopilación exhaustiva de la información existente sobre este tópico. De las 121 especies de lagartos nativos de Chile, tan solo se ha reportado emisión de sonidos en 13 especies (10.7%), pertenecientes a los géneros Diplolaemus, Garthia, Lepidodactylus, Liolaemus, Phyllodactylus, Phymaturus y Pristidactylus. La mayor parte de estas especies emite sonidos en contextos de depredación, probablemente con la finalidad de disuadir el ataque de un depredador. Discutimos diversos aspectos a considerar en futuras investigaciones sobre emisión de sonidos en lagartos. Lizards mainly depend on chemical and visual signals to communicate and, to a lesser extent, on acoustic signals, so generally it has been considered that these reptiles do not emit sounds. However, representatives of different lizard families can emit sounds through their mouths and in different contexts. In Chile, the reports on the emission of sounds in lizards are scarce and anecdotal, and in very few cases, these acoustic signals have been studied in detail. However, the knowledge about sound emissions of some species of native lizards from Chile has increased during the last few years. The goal of this review is to define the state of the art on the emission of sounds in native lizards of Chile as well as to encourage the development of research related to this particular communication modality. For this, we made an exhaustive compilation of the existing information on this topic. Of the 121 species of native lizards in Chile, there are reports of sound emission for only 13 species (10.7%) of the genus Diplolaemus, Garthia, Lepidodactylus, Liolaemus, Phyllodactylus, Phymaturus and Pristidactylus. Most of these species emit sounds in predation contexts, probably for the purpose of deterring the attack of a predator. We discuss several aspects that should be considered for the future studies about lizard sounds.

• Motes-Rodrigo, Alba; Labra, Antonieta & Lampe, Helene M. (2017). Breeding Experience and not Age Modulates the Song Development of Pied Flycatchers (Ficedula hypoleuca). Ethology. ISSN 0179-1613. 123(3), s. 197–204. doi: 10.1111/eth.12589. Fulltekst i vitenarkiv Vis sammendrag

  In songbirds, the development of the species‐specific adult song involves a learning process that varies in extension. In species that incorporate new song elements throughout life (open‐ended learners), variation in male song composition could be the result of either age or breeding experience. Using data from 16 yr of fieldwork on pied flycatchers (Ficedula hypoleuca), we aimed to disclose the individual contribution of these two factors on the species song characteristics, as well as their relation with morphology and plumage color changes. Finally, we explored whether any of the song or physical features could predict the probability of males returning to the breeding site. We found that the song characteristics of the first‐time breeders did not differ between age classes, except for the total number of syllables per song, which was higher in the 1‐year‐old than in the 2‐year‐old males. However, we found that song variables associated with complexity (song and sample versatilities and repertoire size), increased significantly from the first to the second breeding season. Males showed delayed plumage maturation, with 1‐year‐old males being browner than the 2‐year‐old males independently of their breeding experience. Morphology, however, was not affected by age or breeding experience. The probability that males returned to the breeding site was not associated with song or physical features. Considering that some song learning occurs during the breeding period and that some males may skip the first breeding season, selective pressures may have been established for song complexity to be an honest indicator of breeding experience rather than age. This article has been accepted and published in Ethology. © 2017 Wiley

• Labra, Antonieta; Reyes-Olivares, Claudio & Weymann, Michael (2016). Asymmetric Response to Heterotypic Distress Calls in the Lizard Liolaemus chiliensis. Ethology. ISSN 0179-1613. 122(9), s. 758–768. doi: 10.1111/eth.12522. Fulltekst i vitenarkiv
• Mora, Marta; Constanzo-Chavez, Javiera; Contardo, Juan & Labra, Antonieta (2016). First report of predation by Calyptocephalella gayi upon the invasive species xenopus laevis (Amphibia, anura, Calyptocephalellidae and Pipidae). Herpetology Notes. 9, s. 171–173. Fulltekst i vitenarkiv
• Reyes-Olivares, Claudio; Rain-Garrido, Inger & Labra, Antonieta (2016). Protrusión ocular en lagartos Liolaemus (Weigmann 1843) (The eye-bulging in Liolaemus lizards (Weigmann 1843)]. Gayana. ISSN 0717-652X. 80(1), s. 129–132. doi: 10.4067/S0717-65382016000100013. Fulltekst i vitenarkiv
• Reyes, Claudio; Rain-Garrido, Inger & Labra, Antonieta (2016). The eye-bulging in Liolaemus lizards (Weigmann 1843). Gayana. ISSN 0717-652X. 80(1), s. 129–132. doi: 10.4067/S0717-65382016000100013. Fulltekst i vitenarkiv Vis sammendrag

  It is described for the first time the eye-bulging display in two liolaemid lizards, Liolaemus chiliensis and L. gravenhorstii. This display occurs in very low frequency and it was observed in captivity. It is discussed the possibility that the thermoregulation and/or eye-cleaning hypotheses may explain the occurrence of this display in these two species

• Urra, F.A.; Pulgar, Rodrigo; Hodar, Christian; Gutierrez, Ricardo; Cambiazo, Veronica & Lillo, Antonieta Labra (2015). Identification, cloning and molecular evolution of five putative toxins from the venom gland of the rear-fanged snake Philodryas chamissonis (Serpentes: Dipsadidae). Toxicon. ISSN 0041-0101. doi: 10.1016/j.toxicon.2015.09.032. Fulltekst i vitenarkiv
• Lillo, Antonieta Labra & Hoare, Misque (2015). Chemical recognition in a snake-lizard predator-prey system. Acta Ethologica. ISSN 0873-9749. 18(2), s. 173–179. doi: 10.1007/s10211-014-0203-7. Fulltekst i vitenarkiv
• Urra, Felix A.; Pulgar, Rodrigo; Gutierrez, Ricardo; Hodar, Christian; Cambiazo, Veronica & Labra, Antonieta (2015). Identification and molecular characterization of five putative toxins from the venom gland of the snake Philodryas chamissonis (Serpentes: Dipsadidae). Toxicon. ISSN 0041-0101. 108, s. 19–31. doi: 10.1016/j.toxicon.2015.09.032. Fulltekst i vitenarkiv
• Valdecantos, Soledad; Martinez, Virginia & Labra, Antonieta (2014). Comparative morphology of Liolaemus lizards precloacal glands. Acta Herpetologica. ISSN 1827-9635. 9(2), s. 147–158. doi: 10.13128/Acta_Herpetol-13473. Fulltekst i vitenarkiv
• Labra, Antonieta & Hoare, Misque (2014). Chemical recognition in a snake–lizard predator–prey system. Acta Ethologica. ISSN 0873-9749. s. 1–7. doi: 10.1007/s10211-014-0203-7. Fulltekst i vitenarkiv
• Seligmann, Hervé & Labra, Antonieta (2014). The relation between hairpin formation by mitochondrial WANCY tRNAs and the occurrence of the light strand replication origin in Lepidosauria. Gene. ISSN 0378-1119. 542(2), s. 248–257. doi: 10.1016/j.gene.2014.02.021. Fulltekst i vitenarkiv
• Iturra-Cid, Myriam; Vidal, Marcela; Labra, Antonieta & Ortiz, Julian M. (2014). Winter Thermal Ecology Of Pleurodema thaul (Amphibia: Leptodactylidae). Gayana. ISSN 0717-652X. 78(1), s. 25–30. doi: 10.4067/S0717-65382014000100004. Fulltekst i vitenarkiv
• Labra, Antonieta; Silva, Gabriela; Norambuena, Fernanda; Velásquez, Nelson & Penna, Mario (2013). Acoustic Features of the Weeping Lizard’s Distress Call. Copeia. ISSN 0045-8511. 2013(2), s. 206–212. doi: 10.1643/CE-12-026. Fulltekst i vitenarkiv
• Seligmann, Hervé & Labra, Antonieta (2013). Tetracoding increases with body temperature in Lepidosauria. Biosystems (Amsterdam. Print). ISSN 0303-2647. 114(3), s. 155–163. doi: 10.1016/j.biosystems.2013.09.002. Fulltekst i vitenarkiv

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• Ebensperger, Luis A. & Labra, Antonieta (2021). Comportamiento social de la fauna nativa de Chile. Ediciones UC. ISBN 9789561427518. 564 s. Fulltekst i vitenarkiv
• Gabriel, Lobos; Marcela, Vidal; Claudio, Correa; Lillo, Antonieta Labra; Helen, Díaz-Páez & Andres, Charrier [Vis alle 9 forfattere av denne artikkelen] (2013). Anfibios de Chile,un desafío para la conservación. Ministerio del Medio Ambiente. ISBN 9789567204465. 102 s. Fulltekst i vitenarkiv

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• Goyenechea, Irene; Ríos-Muñoz, César A. & Labra, Antonieta (2024). FIRST AND NEW GEOGRAPHIC RECORDS: GENERAL CONSIDERATIONS FOR THEIR RELEVANCE IN HERPETOLOGY. Revista Latinoamericana de Herpetologia (RLH). 7(4), s. 8–15. doi: 10.22201/fc.25942158e.2024.4.1204. Fulltekst i vitenarkiv
• Labra, Antonieta; Arce, Felipe Pérez De & Ebensperger, Luis A. (2021). Estudios conductuales en la fauna native de Chile: posibles especies modelo. I Ebensperger, Luis A. & Labra, Antonieta (Red.), Comportamiento social de la fauna nativa de Chile. Ediciones UC. ISSN 9789561427518. Fulltekst i vitenarkiv
• Ebensperger, Luis A. & Labra, Antonieta (2021). Consideraciones finales. I Ebensperger, Luis A. & Labra, Antonieta (Red.), Comportamiento social de la fauna nativa de Chile. Ediciones UC. ISSN 9789561427518. Fulltekst i vitenarkiv
• Labra, Antonieta (2021). Comunicación, el mediador de las interacciones sociales de los animales. I Ebensperger, Luis A. & Labra, Antonieta (Red.), Comportamiento social de la fauna nativa de Chile. Ediciones UC. ISSN 9789561427518. Fulltekst i vitenarkiv
• Ebensperger, Luis A. & Labra, Antonieta (2021). Introducción al comportamiento social. I Ebensperger, Luis A. & Labra, Antonieta (Red.), Comportamiento social de la fauna nativa de Chile. Ediciones UC. ISSN 9789561427518. Fulltekst i vitenarkiv
• Labra, Antonieta (2021). Producción, detección y uso de información química en lagartos. Fulltekst i vitenarkiv
• Diaz, S.; Ortega, M.; Zamorano, F.; Reyes-Olivares, C.; Valdebenito, C. & Labra, Antonieta (2021). Caracterización de los sonidos emitidos por el Gruñidor de Valeria, Pristidactylus valeriae. Fulltekst i vitenarkiv
• Labra, Antonieta (2017). Lamer, coletear y chillar: multimodalidad de la conducta social del gecko Garthia gaudichaudii (Duméril & Bibron, 1836) (Squamata: Phyllodactylidae). Fulltekst i vitenarkiv
• Labra, Antonieta (2017). Advancement of spring arrival in a long-term study of a passerine bird: sex, age and environmental effects. Fulltekst i vitenarkiv
• Labra, Antonieta (2017). Historia natural de tres especies simpátricas del género Alsodes (Bell, 1843), en los Andes de Chile central. Fulltekst i vitenarkiv
• Labra, Antonieta (2017). Evaluación de la agresividad en machos de Liolaemus multicolor, una especie polimórfica. Fulltekst i vitenarkiv
• Navea, Fernando & Labra, Antonieta (2016). ¿Es Liolaemus lemniscatus un lagarto fisgón de L. chiliensis? Fulltekst i vitenarkiv
• Diaz, Hugo; Navea, Fernando; Troncoso-Palacios, Jaime; Reyes, Claudio; Lagos, Javiera C & Labra, Antonieta (2016). Emisión de vocalizaciones en lagartos Chilenos: Comparación de los llamados de Diplolaemus sexcinctus, Phymaturus vociferator y Liolaemus nitidus. Fulltekst i vitenarkiv
• Ruiz-Monachesi, Mario; Valdecantos, Soledad; Labra, Antonieta & Cruz, Felix B (2016). Comportamiento y morfología: casos particulares de comunicación en el género Liolaemus. Fulltekst i vitenarkiv
• Paz, Alejandra; Labra, Antonieta & Valdecantos, Soledad (2016). ¿Influyen la residencia y/o el color en el éxito de una interacción agonística en machos de Liolaemus multicolor? Fulltekst i vitenarkiv
• Navea, Fernando & Labra, Antonieta (2016). Evaluando la habilidad de Liolaemus lemniscatus de fisgonear al lagarto llorón. Fulltekst i vitenarkiv
• Labra, Antonieta (2016). Estudiando las vocalizaciones de un lagarto Iguanido, Liolaemus chiliensis. Fulltekst i vitenarkiv
• Reyes, Claudio; Penna, Mario & Labra, Antonieta (2016). Variación geográfica de los llamados de angustia del lagarto llorón (Liolaemus chiliensis). Fulltekst i vitenarkiv
• Felix, Urra; Rodrigo, Pulgar; Veronica, Cambiazo & Labra, Antonieta (2015). Toxinas putativas del veneno de la serpiente Philodryas chamissonis (Serpentes: Dipsadidae). Fulltekst i vitenarkiv
• Mario, Ruiz-Monachesi & Labra, Antonieta (2015). Interacción entre el escenario químico y el tipo de llamadas de auxilio en la respuesta antidepredatoria del lagarto chillón, Liolaemus chiliensis. Fulltekst i vitenarkiv
• Reyes, Claudio; Nelson, Velasquez; Mario, Penna; Peter, Narins & Labra, Antonieta (2015). Evaluación de la sensibilidad timpánica en el lagarto llorón (Liolaemus chiliensis). Fulltekst i vitenarkiv
• Mario, Ruiz-Monachesi; Valdecantos, Soledad; Fernando, Lobo; Felix, Cruz & Labra, Antonieta (2015). Nuevos avances en el entendimiento de la comunicación química y visual en lagartos del género Liolaemus. Fulltekst i vitenarkiv
• Motes-Rodrigo, Alba; Labra, Antonieta & Lampe, Helene M. (2015). Testing the nutritional stress hypothesis and learning capacity in pied flycatchers. Fulltekst i vitenarkiv
• Labra, Antonieta & Mario, Ruiz-Monachesi (2015). Interaction between calls and scents in lizard antipredator behavior. Fulltekst i vitenarkiv
• Lampe, Helene M. & Lillo, Antonieta Labra (2015). Exploring the relationship between song characteristics of fathers and sons in pied flycatchers. Fulltekst i vitenarkiv
• Valdecantos, Soledad; Martinez, Virginia & Lillo, Antonieta Labra (2015). Description of a proctodeal gland present in three south American Liolaemus lizards (Iguania: Liolaemidae). Salamandra (Frankfurt). ISSN 0036-3375. 51(2), s. 182–186. Fulltekst i vitenarkiv
• Lillo, Antonieta Labra (2014). Relación entre tamaño corporal y respuesta antidepredatoria en Liolaemus chiliensis. Fulltekst i vitenarkiv
• Lillo, Antonieta Labra (2014). Las vocalizaciones de Liolaemus chiliensis: explorando sus características y funciones. Fulltekst i vitenarkiv
• Lillo, Antonieta Labra (2014). Secreciones precloacales y heces en Liolaemus chiliensis: ¿entregan la misma o distinta información en la comunicación química entre individuos? Fulltekst i vitenarkiv
• Lillo, Antonieta Labra (2014). Evaluación ontogenética de la sensibilidad timpánica en el lagarto llorón (Liolaemus chiliensis). Fulltekst i vitenarkiv
• Lillo, Antonieta Labra (2014). Una aproximación conductual en la herpetología. Fulltekst i vitenarkiv
• Lillo, Antonieta Labra (2014). Bioacústica de un nuevo Liolaemido que chilla, Liolaemus nitidus: un análisis de su vocalización y audición. Fulltekst i vitenarkiv
• Lillo, Antonieta Labra (2014). Explorando la funcionalidad de los chillidos con ultrasonido del lagarto llorón Liolaemus chiliensis. Fulltekst i vitenarkiv
• Lillo, Antonieta Labra (2014). Caracterización de la vocalización y receptividad acústica de Liolaemus nitidus (Liolaemidae), una nueva especie del género que vocaliza. Fulltekst i vitenarkiv
• Lillo, Antonieta Labra (2014). Percepción acústica en el lagarto llorón, Liolaemus chiliensis. Fulltekst i vitenarkiv
• Lillo, Antonieta Labra (2014). Production and perception of ultrasound in the weeping lizard: a puzzling mismatch. Fulltekst i vitenarkiv
• Lampe, Helene M. & Labra, Antonieta (2013). What sons get from fathers? Song repertoires in the Pied Flycatcher. Fulltekst i vitenarkiv
• Labra, Antonieta (2013). Análisis de la diversificación estructural de las papilas linguales en Liolaemus y su función. Fulltekst i vitenarkiv
• Labra, Antonieta (2013). La respuesta de un depredador, Philodryas chamissonis, a las vocalizaciones de Liolaemus chiliensis. Fulltekst i vitenarkiv
• Labra, Antonieta (2013). Comparación poblacional de la respuesta de Liolaemus chiliensis a sus vocalizaciones. Fulltekst i vitenarkiv
• Labra, Antonieta (2013). What sons get from fathers? Song repertoires in the Pied Flycatcher. Fulltekst i vitenarkiv
• Labra, Antonieta (2013). Intraspecific variation in the response of the weeping lizard to its distress calls. Fulltekst i vitenarkiv
• Martinez, Virginia; Valdecantos, Soledad & Lillo, Antonieta Labra (2013). Análisis de la diversificación estructural de las papilas linguales en Liolaemus y su función. Fulltekst i vitenarkiv
• Weymann, Michael; Reyes, Claudio & Lillo, Antonieta Labra (2013). Comparación poblacional de la respuesta de Liolaemus chiliensis a sus vocalizaciones. Fulltekst i vitenarkiv
• Valdecantos, Soledad; Martinez, Virginia & Lillo, Antonieta Labra (2013). Estudiando las secreciones de las glándulas precloacales desde la morfología en tres especies de Liolaemus. Fulltekst i vitenarkiv
• Reyes, Claudio & Lillo, Antonieta Labra (2013). Descripción del "eyes-popping" en el lagarto llorón (Liolaemus chiliensis). Fulltekst i vitenarkiv
• Reyes, Claudio; Weymann, Michael & Lillo, Antonieta Labra (2013). Respuesta del lagarto llorón a sus llamadas de auxilio. Fulltekst i vitenarkiv
• Labra, Antonieta; Michael, Weymann; Claudio, Reyes & Misque, Hoare (2013). Intraspecific variation in the response of the weeping lizard to its distress calls. Fulltekst i vitenarkiv
• Lillo, Antonieta Labra & Hoare, Misque (2013). La respuesta de un depredador, Philodryas chamissonis, a las vocalizaciones de Liolaemus chiliensis. Fulltekst i vitenarkiv
• Helene, Lampe & Labra, Antonieta (2013). What sons get from fathers? Song repertoires in the Pied Flycatcher. Fulltekst i vitenarkiv
• Weymann, Michael; Reyes, Claudio; Diaz, Hugo & Labra, Antonieta (2013). Variación poblacional en la distribución espacial del lagarto llorón. Fulltekst i vitenarkiv

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