دورية أكاديمية
Neutral processes and reduced dispersal across Amazonian rivers may explain how rivers maintain species diversity after secondary contact
| العنوان: | Neutral processes and reduced dispersal across Amazonian rivers may explain how rivers maintain species diversity after secondary contact |
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| المؤلفون: | Sergio Santorelli Junior, William E. Magnusson, Cláudia Pereira de Deus, Timothy H. Keitt |
| المصدر: | Perspectives in Ecology and Conservation, Vol 20, Iss 2, Pp 151-158 (2022) |
| بيانات النشر: | Elsevier, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Ecology LCC:General. Including nature conservation, geographical distribution |
| مصطلحات موضوعية: | Allopatry, Secondary contact, Amazonian rivers, Neutral process, Reduced dispersal, Amazonian biodiversity, Ecology, QH540-549.5, General. Including nature conservation, geographical distribution, QH1-199.5 |
| الوصف: | Amazonian rivers are only partial barriers to the dispersal of most species, but they still form the limits between the distributions of many similar species. We show that two competitively-identical species may remain allopatric for hundreds of generations when a river only reduces the chance of a species crossing it. To illustrate this, we developed a two-dimensional cellular automata for two allopatric species under neutral-theory dynamics and recorded the time required for the first extinction of a species and the frequency with which it occurred across replicate simulations. Our results indicate that neutral processes associated with reduced dispersal across rivers can maintain competitively-identical species allopatric for hundreds of generations despite repeated river crossings. These cross-river incursions were rarely successful owing to the low likelihood of a rare invader outcompeting resident populations. This process provides a plausible mechanism for the maintenance of Amazonian biodiversity and may explain the spatial-distribution limits of species caused by large rivers in the Amazon that are not absolute barriers to dispersal. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2530-0644 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S2530064421001012; https://doaj.org/toc/2530-0644 |
| DOI: | 10.1016/j.pecon.2021.12.004 |
| URL الوصول: | https://doaj.org/article/6061df950fa1419f88ffac6febc0571a |
| رقم الأكسشن: | edsdoj.6061df950fa1419f88ffac6febc0571a |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 25300644 |
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| DOI: | 10.1016/j.pecon.2021.12.004 |