Publications by authors named "P Jarne"
Article Synopsis
- Biological invasions are on the rise, particularly in tropical freshwaters like those in Martinique, leading to ecological destabilization and new predator-prey dynamics.
- Research focused on the interactions between the invasive Thiarid snails and the redclaw crayfish shows that crayfish predation significantly reduces snail survival, influenced by crayfish size and method of attack.
- The study reveals that Thiarid snails have limited escape options, emphasizing the redclaw crayfish's role as a harmful invasive species that could threaten various native aquatic organisms.
Eco-evolutionary dynamics, or eco-evolution for short, are often thought to involve rapid demography (ecology) and equally rapid heritable phenotypic changes (evolution) leading to novel, emergent system behaviours. We argue that this focus on contemporary dynamics is too narrow: Eco-evolution should be extended, first, beyond pure demography to include all environmental dimensions and, second, to include slow eco-evolution which unfolds over thousands or millions of years. This extension allows us to conceptualise biological systems as occupying a two-dimensional time space along axes that capture the speed of ecology and evolution.
View Article and Find Full Text PDFHow the complexity of food webs depends on environmental variables is a long-standing ecological question. It is unclear though how food-chain length should vary with adaptive evolution of the constitutive species. Here we model the evolution of species colonisation rates and its consequences on occupancies and food-chain length in metacommunities.
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