Éva Kisdi (University of Helsinki): The evolution of habitat choice facilitates niche expansion

Abstract: Matching habitat choice and local adaptation are two key factors that control the distribution and diversification of species. We study their joint evolution in a structured metapopulation model with a continuous distribution of habitats. Habitat choice follows from dispersal with non-random immigration, a process always acknowledged yet rarely incorporated into theoretical models. For fixed …

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Vadim Karatayev (University of Guelph): Species heterogeneity can reduce the potential for alternative stable states in food webs

Abstract. Can alternative stable states arise when food webs dissipate feedbacks across many species in diverse systems like coral reefs? Although consumer loss often characterizes degraded ecological states, food web resilience theory predominantly focuses on specific systems and few-species models. After developing a generalized model of consumer collapse, we show that alternative stable states dominated …

Vadim Karatayev (University of Guelph): Species heterogeneity can reduce the potential for alternative stable states in food webs Read More »