Association for Behavior Analysis International

The Association for Behavior Analysis International® (ABAI) is a nonprofit membership organization with the mission to contribute to the well-being of society by developing, enhancing, and supporting the growth and vitality of the science of behavior analysis through research, education, and practice.

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Behavioral Interference Between Species

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To ensure we offer contemporary continuing education opportunities, the CE credit associated with this video is no longer available, however, the video remains available for viewing.

 

Aggression and reproductive interference are forms of behavioral interference that occur commonly between closely related species. Such between-species interactions can, and in most cases probably do, arise as a byproduct of activities that are part of the normal lives of animals, such as defending resources and attracting mates. However, the ecological and evolutionary consequences of behavioral interference between species can be quite distinct from the effects of the corresponding within-species interactions. Behavioral interference can determine whether species are able to coexist, and if they do coexist, how they evolve subsequently in response to each other through natural selection. Behavioral interference was probably part of human evolution, and could help explain why we are the only extant species in the genus Homo, but this talk will focus on what we know, with greater certainty, about the role of behavioral interference in the ecology and evolution of other animals. If behavioral interference is a costly interaction at the population level, why does it persist? In what ways, and to what extent, does behavioral interference affect the geographic ranges of species? How does behavioral interference affect the spread of invasive species, or the fate of endangered species? What is the evidence that behavioral interference has evolutionary consequences? I will use examples from the literature, as well as from my own research, to answer these and other questions, while striving to present a balanced perspective on the subject.

 

 

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