Beatriz Diaz Pauli

Postdoctoral Fellow - Centre for Ecological and Evolutionary Synthesis

Email b.d.pauli@ibv.uio.no

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Visiting address Pierre et Marie Curie University Paris

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Academic interests

From 1^st November 2016, I will be part of CEES as a postdoctoral fellow in the project “Productivity and Resilience Enhancement of Exploited Fish stocks: an experimental approach”. We will be studying how different size-selective fishing regimes affect the stability of exploited populations and their trophic cascades using experimental populations of medaka fish. During the first year I will be based at the Pierre et Marie Curie University in Paris. Once the experimental part of the project is over I will move to Oslo. The project is a collaboration between CEES (Vøllestad), NMBU and French researcher.

I am interested in the anthropogenic causes of contemporary evolution. I studied fisheries-induced evolution during my PhD and postdoctoral position at the University of Bergen developing selection lines in guppies. Former projects involved studying the effect of eutrophication and inbreeding due to habitat destruction on mating and parental care behaviour in the sand goby and the least killifish at Åbo Akademi and at the University of Helsinki, respectively.

Evangelista, Charlotte; Dupeu, Julia; Sandkjenn, Joakim; Pauli, Beatriz Diaz; Herland, Anders & Meriguet, Jacques [Show all 8 contributors for this article] (2021). Ecological ramifications of adaptation to size-selective mortality. Royal Society Open Science. ISSN 2054-5703. 8(10). doi: 10.1098/rsos.210842. Full text in Research Archive
Utne, Kjell Rong; Pauli, Beatriz Diaz; Haugland, Monika; Jacobsen, Jan Arge; Maoileidigh, Niall & Melle, Webjørn Raunsgård [Show all 11 contributors for this article] (2021). Poor feeding opportunities and reduced condition factor for salmon post-smolts in the Northeast Atlantic Ocean. ICES Journal of Marine Science. ISSN 1054-3139. 78(8), p. 2844–2857. doi: 10.1093/icesjms/fsab163. Full text in Research Archive Show summary
During the last few decades, many wild Atlantic salmon populations have declined dramatically. One possible contributing factor for the decline is reduced prey availability at sea. Here, we examine post-smolt diet and investigate if post-smolts show signs of selective feeding based on 2546 post-smolts sampled from west of Ireland to the northern Norwegian Sea over a 25-year period. We also test for changes over time in stomach fullness, diet, condition factor and body length. There was a clear reduction in condition factor for post-smolts sampled in the Norwegian Sea in the period 2003–2012. The post-smolt stomach fullness was also reduced in the same period. The reduction in condition factor is partly explained by reduced stomach fullness, including a reduction of highly energetic fish larvae and Amphipoda in the diet. Feeding on other prey, such as meso-zooplankton and insects, cannot substitute the high-quality fish larvae and Amphipoda in the post-smolt diet. This is the first study to document how salmon post-smolts feeding in the Norwegian Sea are affected by reduced feeding conditions. Possible causes for the observed changes in post-smolt feeding are ocean warming, decreased primary productivity, and reduced recruitment of important fish larvae.
Diaz Pauli, Beatriz & Lindström, Kai (2020). Trade-off between mate choice speed and decision accuracy under mating competition in female sand gobies. Journal of Ethology. ISSN 0289-0771. doi: 10.1007/s10164-020-00673-z.
Evangelista, Charlotte; Vøllestad, Leif Asbjørn; Diaz Pauli, Beatriz & Edeline, Eric (2020). Density-dependent consequences of size-selective induced life-history changes to population fitness in medaka (Oryzias latipes). Canadian Journal of Fisheries and Aquatic Sciences. ISSN 0706-652X. 77(10), p. 1741–1748. doi: 10.1139/cjfas-2019-0406. Full text in Research Archive
Diaz Pauli, Beatriz; Edeline, Eric & Evangelista, Charlotte (2020). Ecosystem consequences of multi-trait response to environmental changes in Japanese medaka, Oryzias latipes. Conservation Physiology. ISSN 2051-1434. 8(1), p. 1–13. doi: 10.1093/conphys/coaa011. Full text in Research Archive
Evangelista, Charlotte; Diaz Pauli, Beatriz; Vøllestad, Leif Asbjørn & Edeline, Eric (2020). Stoichiometric consequences of size-selective mortality: An experimental test using the Japanese medaka (Oryzias latipes). Science of the Total Environment. ISSN 0048-9697. 724(138193), p. 1–8. doi: 10.1016/j.scitotenv.2020.138193. Full text in Research Archive Show summary
The determinants of intraspecific stoichiometric variation remain difficult to elucidate due to their multiple ori- gins (e.g. genetic vs. environmental) and potential interactive effects. We evaluated whether two size-selected lines of medaka (Oryzias latipes) with contrasted life-history strategies (small- and large-breeder lines with slow growth and early maturity vs. fast growth and late maturity) differed in their organismal stoichiometry (percentage and ratios of carbon [C], nitrogen [N] and phosphorus [P]) in a mesocosm experiment. We also tested how size-selection interacted with environmental conditions (i.e. two levels of fish density and light intensity), body condition and sex. Results showed that large-breeder fish were significantly N-enriched compared to small-breeders, while the two size-selected lines did not differ in body P composition. Size-selection interacted with density – high density only affected small-breeders leading to decreasing %C and C: N – and with sex – large-breeder females had higher %C and C:N values than large-breeder males. Finally, C:P and N:P ratios in- creased with body condition due to decreasing %P. Overall, our results show that the ecological consequences of size-selective mortality extend to organismal stoichiometry and may, from there, change nutrient cycling and ecosystem functioning.
Järvenpää, Marjä; Diaz Pauli, Beatriz & Lindström, Kai (2019). Water turbidity constrains male mating success in a marine fish. Behavioral Ecology and Sociobiology. ISSN 0340-5443. 73(140). doi: 10.1007/s00265-019-2752-2.
Diaz Pauli, Beatriz; Garric, Sarah; Evangelista, Charlotte; Vøllestad, Leif Asbjørn & Edeline, Eric (2019). Selection for small body size favours contrasting sex-specific life histories, boldness and feeding in medaka, Oryzias latipes. BMC Evolutionary Biology. ISSN 1471-2148. 19(1). doi: 10.1186/s12862-019-1460-x. Full text in Research Archive
Diaz Pauli, Beatriz; Kolding, Jeppe; Jeyakanth, Geetha & Heino, Mikko Petteri (2017). Effects of ambient oxygen and size-selective mortality on maturation and growth in guppies. Conservation Physiology. ISSN 2051-1434. 5:cox010, p. 1–13. doi: 10.1093/conphys/cox010. Full text in Research Archive
Diaz Pauli, Beatriz & Sih, Andrew (2017). Behavioural responses to human-induced change: Why fishing should not be ignored. Evolutionary Applications. ISSN 1752-4571. 10(3), p. 231–240. doi: 10.1111/eva.12456. Full text in Research Archive
Heino, Mikko Petteri; Diaz Pauli, Beatriz & Dieckmann, Ulf (2015). Fisheries-induced evolution. Annual Review of Ecology, Evolution and Systematics. ISSN 1543-592X. 46, p. 461–480. doi: 10.1146/annurev-ecolsys-112414-054339. Full text in Research Archive
Diaz Pauli, Beatriz; Wiech, Martin; Heino, Mikko Petteri & Utne-Palm, Anne Christine (2015). Opposite selection on behavioural types by active and passive fishing gears in a simulated guppy Poecilia reticulata fishery. Journal of Fish Biology. ISSN 0022-1112. 86(3), p. 1030–1045. doi: 10.1111/jfb.12620. Full text in Research Archive
Diaz Pauli, Beatriz & Heino, Mikko Petteri (2014). What can selection experiments teach us about fisheries-induced evolution? Biological Journal of the Linnean Society. ISSN 0024-4066. 111(3), p. 485–503. doi: 10.1111/bij.12241.
Diaz Pauli, Beatriz & Heino, Mikko Petteri (2014). What can selection experiments teach us about fisheries-induced evolution? Biological Journal of the Linnean Society. ISSN 0024-4066. 111(3), p. 485–503. doi: 10.1111/bij.12241. Full text in Research Archive
Diaz Pauli, Beatriz & Heino, Mikko Petteri (2013). Ecological and evolutionary effects of harvesting: lessons from the candy-fish experiment. ICES Journal of Marine Science. ISSN 1054-3139. 70(7), p. 1281–1286. doi: 10.1093/icesjms/fst160. Full text in Research Archive
Diaz Pauli, Beatriz & Heino, Mikko Petteri (2013). The importance of social dimension and maturation stage for the probabilistic maturation reaction norm in Poecilia reticulata. Journal of Evolutionary Biology. ISSN 1010-061X. 26(10), p. 2184–2196. doi: 10.1111/jeb.12215. Full text in Research Archive
Ala-Honkola, Outi; Uddstrom, Annika; Diaz Pauli, Beatriz & Lindström, Karl (2009). Strong inbreeding depression in male mating behaviour in a poeciliid fish. Journal of Evolutionary Biology. ISSN 1010-061X. 22(7), p. 1396–1406. doi: 10.1111/j.1420-9101.2009.01765.x.

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Bartuseviciute, Vitalija; Pauli, Beatriz Diaz; Salvanes, Anne Gro Vea & Heino, Mikko Petteri (2021). Cost of life-history adaptations: Multiple trait consequences of fisheries-induced evolution.
Bartuseviciute, Vitalija; Pauli, Beatriz Diaz; Salvanes, Anne Gro Vea & Heino, Mikko Petteri (2021). Cost of life-history adaptations: Multiple trait consequences of fisheries-induced evolution.
Diaz Pauli, Beatriz; Bartuseviciute, Vitalija & Heino, Mikko Petteri (2020). My article in Frontiers for Young Minds.
Diaz Pauli, Beatriz; Bartuseviciute, Vitalija & Heino, Mikko Petteri (2020). Fishing can turn big fish into small fish. Frontiers for Young Minds. ISSN 2296-6846. 8. doi: 10.3389/frym.2020.00112.
Diaz Pauli, Beatriz; Evangelista, Charlotte & Edeline, Eric (2019). Selection for small size affects the pace-of-life syndrome in medaka impacting the invertebrate community.
Diaz Pauli, Beatriz (2018). Evolutionary effect of fishing as predation: Insights from experimental populations.
Diaz Pauli, Beatriz (2017). Fisheries-induced evolution: Insights from experimental populations of guppies.
Smolina, Irina Vladimirovna; Jüterbock, Alexander Oliver; Diaz Pauli, Beatriz; Hoarau, Galice Guillaume & Heino, Mikko Petteri (2017). Genomic effects of fishery-induced selection in guppy Poecilia reticulate.
Diaz Pauli, Beatriz (2015). Does size-selective fishing affect behavioural diversity?
Diaz Pauli, Beatriz; Utne-Palm, Anne Christine; Wiech, Martin; Ehlman, Sean; Sih, Andrew & Heino, Mikko Petteri (2014). Does fishing affect behaviour? An experimental test with guppy (Poecilia reticulata) populations.
Diaz Pauli, Beatriz; Savolainen, Heikki; Utne-Palm, Anne Christine; Ellertsen, Diep Mach; Reznick, David N. & Heino, Mikko Petteri (2014). Phenotypic and genetic changes in life history traits in experimental populations of guppies (Poecilia reticulata) that experienced size-selective fishing.
Heino, Mikko Petteri; Diaz Pauli, Beatriz; Savolainen, Heikki; Utne-Palm, Anne Christine; Ellertsen, Diep Mach & Reznick, David N. (2014). Changes in productivity and life-history traits in experimentally harvested guppy populations.
Diaz Pauli, Beatriz; Savolainen, Heikki; Utne-Palm, Anne Christine; Reznick, David N. & Heino, Mikko Petteri (2013). Fisheries impact on life-history: Phenotypic changes in life-history of size-selected guppy populations.
Diaz Pauli, Beatriz; Wiech, Martin; Heino, Mikko Petteri & Utne-Palm, Anne Christine (2012). The behavioural effect of fishing. Do personality types differ in vulnerability to fishing gear?
Diaz Pauli, Beatriz; Savolainen, Heikki; Utne-Palm, Anne Christine; Reznick, David N. & Heino, Mikko Petteri (2012). Dynamics of size-selective exploitation and changes in life history traits in experimental populations of guppies (Poecilia reticulata).
Diaz Pauli, Beatriz; Utne-Palm, Anne Christine; Reznick, David N. & Heino, Mikko Petteri (2011). Experimental approach to the study of fisheries induced evolution.
Diaz Pauli, Beatriz; Reznick, David N. & Heino, Mikko Petteri (2010). Estimation of Probabilistic Maturation Reaction Norms (PMRN) under laboratory conditions.
Ala-Honkola, Outi; Uddstrom, Annika; Diaz Pauli, Beatriz & Lindström, Kai (2010). Inbreeding depression in male mating behaviour of Heterandria formosa.
Diaz Pauli, Beatriz (2010). Bærekraftige forvaltning av fiskebestander. Følger fiskeriforskerne sine egne teorier? Naturen. ISSN 0028-0887. p. 109–112.
Diaz Pauli, Beatriz; Dankel, Dorothy Jane & Heino, Mikko Petteri (2009). Can we harvest sustainably? An experimental approach with humans as the exploiting agents.
Ahmed Idris, Eihab; Diaz Pauli, Beatriz & Heino, Mikko Petteri (2016). Fisheries-induced evolution in morphology: a selection experiment on the Trinidadian guppy (Poecilia reticulata). Universitetet i Bergen.
Jeyakanth, Geetha; Kolding, Jeppe; Diaz Pauli, Beatriz & Heino, Mikko Petteri (2015). Effect of ambient oxygen on the life history of Guppies (Poecilia reticulata). Universitetet i Bergen.
López, Piero F.; Heino, Mikko Petteri; Folkvord, Arild & Diaz Pauli, Beatriz (2014). Changes in growth under size-selective mortality using otolith microstructure analysis. Universitetet i Bergen.
Jayawickrama, Ranga; Utne-Palm, Anne Christine; Gunawickrama, Suneetha; Heino, Mikko Petteri & Diaz Pauli, Beatriz (2013). Consequences of size-dependent harvest in guppy: study of morphological traits and their heritability. Universitetet i Bergen.
Diaz Pauli, Beatriz (2012). Contemporary evolution caused by fisheries: Contributions from experimental studies. The University of Bergen. ISSN 978-82-308-2138-1.

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Published Nov. 1, 2016 2:35 PM - Last modified Feb. 9, 2017 9:37 PM

Beatriz Diaz Pauli

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