Testing the influence of environmental heterogeneity on fish species richness in two biogeographic provinces Philippe Massicotte∗ , Rapha¨el Proulx, Gilbert Cabana and Marco A. Rodr´ıguez ´ Centre de Recherche sur les Interactions Bassins Versants-Ecosyst` emes Aquatiques (RIVE), Universit´e du Qu´ebec a` Trois-Rivi`eres, Trois-Rivi`eres, Canada ∗ Current affiliation: Department of Bioscience, Aarhus University, Frederiksborgvej, Roskilde, Denmark
ABSTRACT Environmental homogenization in coastal ecosystems impacted by human activities may be an important factor explaining the observed decline in fish species richness. We used fish community data (>200 species) from extensive surveys conducted in two biogeographic provinces (extent >1,000 km) in North America to quantify the relationship between fish species richness and local (grain
ABSTRACT Environmental homogenization in coastal ecosystems impacted by human activities may be an important factor explaining the observed decline in fish species richness. We used fish community data (>200 species) from extensive surveys conducted in two biogeographic provinces (extent >1,000 km) in North America to quantify the relationship between fish species richness and local (grain
