Comparing capuchins and coatis: causes and consequences of differing movement ecology in two sympatric mammals
| Autor: | Ben T. Hirsch, Charles H. Janson, Yamil Edgardo Di Blanco, María Paula Tujague, Mario S. Di Bitetti |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Arboreal locomotion
ANIMAL MOVEMENT TRAVEL BEHAVIOUR Foraging TRAVEL COST Coati Predation Ciencias Biológicas CAPUCHIN biology.animal Ecology Evolution Behavior and Systematics COATI TRAPLINE biology Ecology Nasua Brown capuchin STRAIGHTNESS INDEX Ecología biology.organism_classification CEBUS APELLA NIGRITUS Sympatric speciation NASUA NASUA Animal Science and Zoology Mammal CIENCIAS NATURALES Y EXACTAS |
| Popis: | The mechanisms that shape animal movement decisions at the level of an individual or a group of animals can scale up to affect larger-scale ecological processes. Ecologists often use mechanistic animal movement models to understand these links, but animal movement models rarely connect empirically with an understanding of how animals actually decide to move around in their environment. To better understand this relationship, we compared the travel behaviour of two sympatric mammal species that have broadly similar diets: brown capuchin monkeys, Cebus apella nigritus, and ring-tailed coatis, Nasua nasua. According to most mechanistic animal movement models, species that exploit the same resources should show similar movement patterns. Although the fruit component of coati and capuchin diets is very similar, coatis primarily feed on invertebrates in the leaf litter or soil, while capuchins forage on invertebrate prey in the forest canopy. We found that these two species showed markedly different movement patterns: while capuchins typically travelled between fruit trees in relatively straight lines, coatis had significantly more tortuous daily travel paths and frequently visited the same fruit trees more than once per day. These circular coati travel paths would not be predicted by most foraging models. We posit that these differences in coati and capuchin movement patterns are driven by differences in arboreal and terrestrial travel costs, exploitation of fallen fruits and shifts in foraging behaviour over the course of the day. Because these seemingly small differences between the two species lead to major differences in movement behaviour, we posit that animal movement models need to better incorporate (1) travel costs, (2) both directed travel and random food search and (3) realistic diet models that include resources with different nutrient compositions. Fil: Hirsch, Ben T.. Ohio State University; Estados Unidos. Smithsonian Tropical Research Institute; Panamá Fil: Tujague, María Paula. Consejo Nacional de Investigaciones Cientiâficas y Tecnicas. Centro Cientifico Tecnologico Nordeste. Instituto de Biologia Subtropical. Instituto de Biologia Subtropical - Nodo Puerto Iguazu; Argentina. Asociación Civil Centro de Investigaciones del Bosque Atlántico; Argentina Fil: Di Blanco, Yamil Edgardo. Consejo Nacional de Investigaciones Cientiâficas y Tecnicas. Centro Cientifico Tecnologico Nordeste. Instituto de Biologia Subtropical. Instituto de Biologia Subtropical - Nodo Puerto Iguazu; Argentina. Asociación Civil Centro de Investigaciones del Bosque Atlántico; Argentina Fil: Di Bitetti, Mario Santiago. Consejo Nacional de Investigaciones Cientiâficas y Tecnicas. Centro Cientifico Tecnologico Nordeste. Instituto de Biologia Subtropical. Instituto de Biologia Subtropical - Nodo Puerto Iguazu; Argentina. Asociación Civil Centro de Investigaciones del Bosque Atlántico; Argentina Fil: Janson, Charles H.. University Of Montana; Estados Unidos |
| Databáze: | OpenAIRE |
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