NDLI: Diet and trophic niche breadth of the rare acrobatic cavy Kerodon acrobata (Rodentia: Caviidae) in a seasonal environment

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Diet and trophic niche breadth of the rare acrobatic cavy Kerodon acrobata (Rodentia: Caviidae) in a seasonal environment

Content Provider	Springer Nature Link
Author	Portella, Alexandre Vieira, Emerson M.
Copyright Year	2016
Abstract	We investigated diet and feeding behavior of the acrobatic cavy Kerodon acrobata, a rare caviomorph rodent endemic from the Cerrado (Brazilian savannah). We tested whether its trophic niche breadth varies between seasons and whether this species shows seasonal differences in food resource use. Feeding behavior was observed through observations of foraging activities in dry forest associated with limestone outcroppings in central Brazil. K. acrobata showed a generalist diet, feeding on leaves from at least 16 native plant families, also consuming flowers and fruits collected directly from plants or litterfall as well as branches, sprouts, and bark. The diversity of feeding behavior categories did not differ significantly between rainy and dry seasons. The trophic niche breadth considering the plant species consumed, however, decreased during the dry season, when this rodent relied mainly on fallen flowers of Handroanthus serratifolius (Caricaceae; about 44 % of the identified feeding records). The diet of the acrobatic cavy was influenced by the availability of falling leaves and flowers during the dry season, when the animals focused their foraging activities on litterfall. The animals seemed not to extend their behavioral repertoire of foraging in the dry season; instead, they seasonally changed their resource exploitation strategy by altering the proportions of items used and the plant species consumed. The trophic niche breadth and plastic feeding behavior of the acrobatic cavies may explain their persistence in disturbed habitats. Their close relationship with the forests studied indicates the vulnerability of K. acrobata to activities that may threaten the integrity of dry forest areas.
Starting Page	279
Ending Page	287
Page Count	9
File Format	PDF
ISSN	21992401
Journal	Acta Theriologica
Volume Number	61
Issue Number	3
e-ISSN	2199241X
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2016-04-21
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Tropical dry forest Feeding behavior Browser Herbivory Cerrado Zoology Fish & Wildlife Biology & Management Animal Ecology Evolutionary Biology
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology Ecology, Evolution, Behavior and Systematics

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