Exposing monitor lizards to thousands of young cane toads helped them survive once the adult toads invaded.
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Contemporary Survival Selection Fails to Explain Observed Patterns of Phenotypic Divergence Between Suburban and Forest Populations of the Cuban Endemic Lizard, .
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Centre d'Écologie Fonctionnelle et Évolutive CEFE, Université de Montpellier, CNRS, EPHE, IRD, CEDEX 5, 34293 Montpellier, Hérault, France.
Although urbanization is a major threat to biodiversity, some native species have managed to persist in urban areas. Populations of such species often show phenotypic differences with their rural counterparts. A crucial question is whether such differences result from different selection regimes between habitats.
View Article and Find Full Text PDFGenomic signatures of adaptation in native lizards exposed to human-introduced fire ants.
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Department of Biology, The Pennsylvania State University, University Park, PA, USA.
Understanding the process of genetic adaptation in response to human-mediated ecological change will help elucidate the eco-evolutionary impacts of human activity. In the 1930s red imported fire ants (Solenopsis invicta) were accidently introduced to the Southeastern USA, where today they are both venomous predators and toxic prey to native eastern fence lizards (Sceloporus undulatus). Here, we investigate potential lizard adaptation to invasive fire ants by generating whole-genome sequences from 420 lizards across three populations: one with long exposure to fire ants, and two unexposed populations.
View Article and Find Full Text PDFThe human-mediated transportation of stowaway individuals to non-native regions is a major driver of new biological invasions, and the post-establishment spread of the invader in its introduced range. In order for the stowaway individuals to successfully establish in the non-native region, they must survive the harsh conditions during the journey (e.g.
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Article Synopsis
- Biological invasions disrupt native ecosystems, affecting ecological processes through predation and competition, which can result in either species coexistence or extinction.
- Our research develops a model for lizard populations based on competition, predation, and how intraguild prey disperses, allowing us to analyze different ecological equilibria and identify conditions for bistability.
- The model findings highlight that intraguild predation significantly affects the movement of brown anoles and is essential for the coexistence of various lizard species across different environments.
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