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Diet and food selection by small mammals in an old-growth Atlantic forest of south-eastern Brazil
- Source :
- Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual), Universidade de São Paulo (USP), instacron:USP
- Publication Year :
- 2011
-
Abstract
- Here we describe the stomach contents of nine small mammal species (seven rodents and two didelphid marsupials) co-occurring in an old-growth Atlantic forest area. For four terrestrial rodents, we also compared the importance of arthropods in the diet and the selection of arthropod groups by comparing consumption with availability. Small mammals and arthropods were sampled in a 36-ha grid containing 25 sampling stations spaced every 150 m, and 47 stomach contents were analysed. While plant matter was the predominant item in the stomach contents of two rodents (Oligoryzomys nigripes and Rhipidomys mastacalis), four species presented arthropods as the main food item (the rodents Brucepattersonius soricinus and Oxymycterus dasytrichus, and the marsupials Monodelphis n. sp. and Marmosops incanus) and three consumed more plant matter than arthropods, but had significant amounts of both items (the rodents Delomys sublineatus, Euryoryzomys russatus and Thaptomys nigrita). Our results suggest that differences in ...
- Subjects :
- Delomys
geography
geography.geographical_feature_category
biology
Marmosops incanus
Ecology
Euryoryzomys russatus
Oligoryzomys nigripes
biology.organism_classification
Old-growth forest
Monodelphis
FLORESTAS TROPICAIS
Animal Science and Zoology
Arthropod
Ecology, Evolution, Behavior and Systematics
Rhipidomys mastacalis
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual), Universidade de São Paulo (USP), instacron:USP
- Accession number :
- edsair.doi.dedup.....80f931814a205d0581c3e0b3760f7787