NDLI: Fragmentation causes rarity in common marmosets in the Atlantic forest of northeastern Brazil

Content Provider	Springer Nature Link
Author	Pontes, Antonio R. Mendes rmande, Iran C. Fernandes, Amaro C. A. Ribeiro, Patrícia F. Rosas Soares, Marina L.
Copyright Year	2006
Abstract	The purpose of this study was to investigate the population status of the common marmosets, Callithrix jacchus, in one of their main habitats, the northeastern Atlantic forest of Brazil, where only 2% of its original area remains as small and isolated forest fragments, to determine long-term viable populations. The study was carried out in 15 forest fragments, measuring from 3,478.3 ha (the largest) to 6 ha, which were invariably subjected to high human impact. Line transect surveys were carried out between January 2002 and December 2004, along transects measuring from 350 to 4,000 m, between 0500 h and 0900 h. Common marmosets were registered in 73% (n = 11) of the forest fragments, were not recorded in the largest one, the Coimbra Forest, and group sizes varied from 1 to 4 individuals. A negative significant relationship was detected between the size of the fragment and the number of sightings of common marmosets. It is shown that the number of groups of common marmosets dwelling in this highly impacted landscape is nowadays lower than necessary for long-term survival. Additionally, smaller fragments having more groups suggests that they live in total association with humans, which assure their subsistence through the supply of introduced and exotic foods.
Starting Page	1175
Ending Page	1182
Page Count	8
File Format	PDF
ISSN	09603115
Journal	Biodiversity and Conservation
Volume Number	16
Issue Number	4
e-ISSN	15729710
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2006-10-27
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Common marmosets Surveys Northeastern Atlantic forest of Brazil Fragmentation Rareness Evolutionary Biology Plant Sciences Tree Biology
Content Type	Text
Resource Type	Article
Subject	Ecology Ecology, Evolution, Behavior and Systematics Nature and Landscape Conservation

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