Selection on individuals of introduced species starts before the actual introduction
| Autor: | Julio Blas, Sonia Cabezas, Tracy A. Marchant, Martina Carrete, Jaime Potti, Adrián Baños-Villalba, Carlos Camacho, José Luis Tella, Pim Edelaar, Moussa Sega Diop |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine Range (biology) invasiveness lcsh:Evolution Captivity Introduced species Ploceus melanocephalus biological invasion 010603 evolutionary biology 01 natural sciences Invasive species 03 medical and health sciences pre‐introduction selection Genetics lcsh:QH359-425 Ecology Evolution Behavior and Systematics Selection (genetic algorithm) feather corticosterone biology Ecology Original Articles biology.organism_classification selective filters wildlife trade Wildlife trade 030104 developmental biology brain size Euplectes afer Original Article General Agricultural and Biological Sciences |
| Zdroj: | Evolutionary Applications, Vol 14, Iss 3, Pp 781-793 (2021) Evolutionary Applications |
| ISSN: | 1752-4571 |
| Popis: | Biological invasion is a global problem with large negative impacts on ecosystems and human societies. When a species is introduced, individuals will first have to pass through the invasion stages of uptake and transport, before actual introduction in a non‐native range. Selection is predicted to act during these earliest stages of biological invasion, potentially influencing the invasiveness and/or impact of introduced populations. Despite this potential impact of pre‐introduction selection, empirical tests are virtually lacking. To test the hypothesis of pre‐introduction selection, we followed the fate of individuals during capture, initial acclimation, and captivity in two bird species with several invasive populations originating from the international trade in wild‐caught pets (the weavers Ploceus melanocephalus and Euplectes afer). We confirm that pre‐introduction selection acts on a wide range of physiological, morphological, behavioral, and demographic traits (incl. sex, age, size of body/brain/bill, bill shape, body mass, corticosterone levels, and escape behavior); these are all traits which likely affect invasion success. Our study thus comprehensively demonstrates the existence of hitherto ignored selection acting before the actual introduction into non‐native ranges. This could ultimately change the composition and functioning of introduced populations, and therefore warrants greater attention. More knowledge on pre‐introduction selection also might provide novel targets for the management of invasive species, if pre‐introduction filters can be adjusted to change the quality and/or quantity of individuals passing through such that invasion probability and/or impacts are reduced. |
| Databáze: | OpenAIRE |
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