CAZELLES Kevin

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  • Integrative Biology, University of Guelph, Guelph, Canada
  • Biodiversity, Biogeography, Climate change, Coexistence, Community ecology, Food webs, Macroecology, Meta-analyses, Spatial ecology, Metacommunities & Metapopulations, Species distributions, Statistical ecology
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I regard myself as a theoretician/data scientist motivated by a strong desire to apply the results of abstract investigations to tangible challenges such as the impact of land-use change on ecological networks.

During my PhD, I investigated the relationship between biotic interactions and species co-occurrence. Species's range limits are indeed not only affected by abiotic factors (such as precipitations and temperature), but they also are determined by the biological context. Although this was first suggested years ago, researchers are still struggling to find adequate approaches that appropriately include all of these factors which are key towards accurate predictions of tomorrow's biodiversity. I have found some promising research avenues to elucidate the conditions under which biotic factors cannot be neglected to predict species' distribution. In the post-doctoral project I have started in June of 2017, I am striving to apply the results of my PhD on the fish communities of the Ontario's lakes.

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2019-01-10
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Inferring macro-ecological patterns from local species' occurrences
Anna Tovo, Marco Formentin, Samir Suweis, Samuele Stivanello, Sandro Azaele, Amos Maritan
10.1101/387456

Recommended by Matthieu Barbier based on reviews by Kevin Cazelles and 1 anonymous reviewer
Upscaling the neighborhood: how to get species diversity, abundance and range distributions from local presence/absence data

How do you estimate the biodiversity of a whole community, or the distribution of abundances and ranges of its species, from presence/absence data in scattered samples?
It all starts with the collector's dilemma: if you double the number of samples, you will not get double the number of species, since you will find many of the same common species, and only a few new rare ones.
This non-additivity has prompted many ecologists to study the Species-Area Relationship. A common theoretical appr...

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