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http://hdl.handle.net/10773/24555
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DC Field | Value | Language |
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dc.contributor.author | Ramos Pereira, Maria | pt_PT |
dc.contributor.author | Rocha, Rita G. | pt_PT |
dc.contributor.author | Ferreira, Eduardo | pt_PT |
dc.contributor.author | Fonseca, Carlos | pt_PT |
dc.date.accessioned | 2018-11-05T12:50:15Z | - |
dc.date.available | 2018-11-05T12:50:15Z | - |
dc.date.issued | 2013 | - |
dc.identifier.issn | 0006-3606 | pt_PT |
dc.identifier.uri | http://hdl.handle.net/10773/24555 | - |
dc.description.abstract | Habitat heterogeneity may affect the structure of animal assemblages even within apparently homogenous landscapes. Gallery forests of the Amazonia-Cerrado ecotone have a small-scale patchiness that is induced by river system dynamics. Gallery forests that never flood are located in upper areas of watercourse margins, whereas seasonally flooded gallery forests are located at lower ground along those margins. We tested the prediction that the assemblage structure of small non-volant mammals of these two types of forests is distinct and arises from the ecological heterogeneity induced by seasonal floods. We found that species composition differed between forest types, with arboreal species dominating in the seasonally flooded forests and a more balanced distribution of arboreal and terrestrial species in unflooded forests. We found no differences in species abundance between habitats, but species richness was higher in unflooded forests. We hypothesize that this difference is due to decreased resource availability for strictly terrestrial species in seasonally flooded forests. Relative biomass of seasonally flooded forests was more than twice that of unflooded forests due to the dominance of large-bodied didelphid species in that assemblage. Our results suggest that the ecological heterogeneity created by seasonal floods is central to maintaining diverse assemblages in this region. The preservation of both unflooded and flooded gallery forests, which are under high human pressure from deforestation, agricultural conversion, and implementation of dams, may be crucial to preserving small mammal diversity at the landscape scale. | pt_PT |
dc.description.sponsorship | We thank Andrea Serafini, Sr. Antônio Messias, Roberto, Sr. Joaquim, Sr. Lucimar and all field assistants who helped with logistics and fieldwork. We thank A.P. Carmignotto for valuable suggestions on the sampling design for pitfall lines. We also thank staff from Parque Estadual do Cantão, Fazendas Santa Fé e Águas do Papagaio, and the following institutions: Ecotropical (a partnership between Instituto Ecológica and Universidade de Aveiro), Universidade Federal do Tocantins/Fundação de Apoio Científico e Tecnológico do Tocantins (UFT/FAPTO), Universidade Luterana do Brasil (ULBRA‐TO) and NATURATINS, for all logistical support. All procedures were performed according to Brazilian national laws and guidelines. Fieldwork was carried out with permits from the federal (ICMBIO, permits: 200/2006 and 14307‐1) and state (NATURATINS, permits: 019/2006 and 001/2008) conservancy agencies. MJRP, RGR, and EF were funded by Fundação para a Ciência e Tecnologia, through grants SFRH/BPD/72845/2010, SFRH/BD/24767/2005, SFRH/BD/23191/2005 and SFRH/BPD/72895/2010. | pt_PT |
dc.language.iso | eng | pt_PT |
dc.publisher | Wiley | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F72845%2F2010/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F24767%2F2005/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F23191%2F2005/PT | pt_PT |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F72895%2F2010/PT | pt_PT |
dc.rights | restrictedAccess | pt_PT |
dc.subject | Araguaia | pt_PT |
dc.subject | Habitat heterogeneity | pt_PT |
dc.subject | Marsupials | pt_PT |
dc.subject | River dynamics | pt_PT |
dc.subject | Rodents | pt_PT |
dc.title | Structure of small mammal assemblages across flooded and unflooded gallery forests of the Amazonia-Cerrado ecotone | pt_PT |
dc.type | article | pt_PT |
dc.description.version | published | pt_PT |
dc.peerreviewed | yes | pt_PT |
degois.publication.firstPage | 489 | pt_PT |
degois.publication.issue | 4 | pt_PT |
degois.publication.lastPage | 496 | pt_PT |
degois.publication.title | Biotropica | pt_PT |
degois.publication.volume | 45 | pt_PT |
dc.identifier.doi | 10.1111/btp.12027 | pt_PT |
dc.identifier.essn | 1744-7429 | pt_PT |
Appears in Collections: | CESAM - Artigos DBio - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Pereira et al. - 2013 - Structure of Small Mammal Assemblages Across Flood.pdf | 187.48 kB | Adobe PDF |
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