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Feeding ecology and spraint deposition sites of the Neotropical otter (Lontra longicaudis) at Cavernas do Peruaçu National Park, Brazil

De Pinho, FF; Ferreira, GB; Barata, IM; (2018) Feeding ecology and spraint deposition sites of the Neotropical otter (Lontra longicaudis) at Cavernas do Peruaçu National Park, Brazil. IUCN/SCC Otter Specialist Group Bulletin , 35 (1) pp. 11-21. Green open access

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Feeding Ecology and Spraint Deposition Sites of the Neotropical Otter (Lontra longicaudis) at Cavernas do Peruaçu National Park, Brazil.pdf - Published Version

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Abstract

Knowledge on the feeding ecology and habitat use of a species is of essential value for effective conservation. We describe the diet and spraints deposition sites for the Neotropical otter (Lontra longicaudis) at Cavernas do Peruaçu National Park, in south eastern Brazil. We collected spraints and recorded characteristics of the deposition sites from 2007-2010. We described otter diet as the number of faeces in which a given taxon was found and the frequency of occurrence of each taxon. We collected 57 spraints and identified 92 food items from nine different taxa, all from animal origin. Fish was the most frequent taxon, found in 98.3% of our samples, followed by arthropods (22.8%) and mammals (10.5%). We recorded 112 spraint deposition sites, most of them located in caves (80%) and < 10 m from the water (93.4%). In our study area the Neotropical otter relies heavily on fish, and we believe that the behaviour of some fish species makes them more vulnerable to predation. Habitat use by otters has important management implications for the national park, as caves are the main tourist attraction and some tourist tracks are located next to the river. Although a well-implemented management action might seem enough to avoid negative impacts of tourism, we believe that monitoring the Neotropical otter population in our study area is of major conservation concern to evaluate the impacts of this activity.

Type: Article
Title: Feeding ecology and spraint deposition sites of the Neotropical otter (Lontra longicaudis) at Cavernas do Peruaçu National Park, Brazil
Open access status: An open access version is available from UCL Discovery
Publisher version: http://www.otterspecialistgroup.org/Bulletin/Volum...
Language: English
Additional information: © 2016 IUCN OSG. This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Mustelidae, Lontra longicaudis, feeding ecology, habitat use, faeces, latrine
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences > Genetics, Evolution and Environment
URI: https://discovery.ucl.ac.uk/id/eprint/10052742
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