Publication
Tropical forest fragmentation : effects on the spatio-temporal dynamics of its bat communities
| datacite.subject.fos | Ciências Naturais::Ciências Biológicas | pt_PT |
| dc.contributor.advisor | Meyer, Cristoph Friedrich Johannes | |
| dc.contributor.advisor | Palmeirim, Jorge M., 1957- | |
| dc.contributor.advisor | Jaimejuan, Maria del Mar Cabeza | |
| dc.contributor.author | Rocha, Ricardo | |
| dc.date.accessioned | 2017-07-27T12:00:43Z | |
| dc.date.available | 2017-07-27T12:00:43Z | |
| dc.date.issued | 2017 | |
| dc.date.submitted | 2016 | |
| dc.description | Tese de doutoramento, Biologia (Biologia da Conservação), Universidade de Lisboa, Faculdade de Ciências, 2017 | pt_PT |
| dc.description.abstract | Tropical forest ecosystems harbour more than half of the planet’s terrestrial species and are of paramount importance for human well-being. Yet, the persistence of tropical forests and their faunal communities is jeopardised by growing rates of habitat loss, fragmentation and degradation. Bats provide critical ecosystem services to tropical forest and are thus crucial for the maintenance of healthy forest habitats. However, as with many other taxa, they are increasingly threatened by anthropogenic forest modification. The main aim of this thesis was to investigate the spatio-temporal effects of forest fragmentation on tropical forest bats. The study was based at the Biological Dynamics of Forest Fragment Project (BDFFP), a whole-ecosystem experiment implemented in the Central Brazilian Amazon. The BDFFP bat fauna was initially studied in 1996-2002, allowing for a comparative follow-up study capable of unveiling the combined effects of spatial and temporal heterogeneity on tropical bat assemblages in fragmented forest landscapes. The controlled experimental setting provided by the BDFFP was further used to investigate the relative roles of vegetation structure and landscape composition and configuration on bat communities, and the depth of this analysis was extended by the examination of sex-specific responses to both local- and landscape-level attributes. Additionally, the re-isolation of forest fragments in late-2013 enabled a before and after re-isolation comparison, allowing valuable insights into short-term responses to abrupt changes in matrix structure. The regeneration of the secondary forest surrounding the BDFFP fragments buffered some of the pervasive consequences of forest fragmentation, however, more than 30 years after initial deforestation bat communities still exhibited scale-sensitive and sex-specific responses to fragmentation. While results highlight the importance of larger (> 10 ha) forest patches and mature secondary forest (> 20 years) for the conservation of tropical bats, they emphasize the irreplaceable value of vast tracts of primary habitat for the long-term conservation of tropical biodiversity. | pt_PT |
| dc.description.abstract | Nas últimas décadas temos assistido a significativos avanços na compreensão da resposta de diversos grupos faunísticos à modificação florestal. No entanto, a nossa perceção de como a qualidade do habitat interage com o contexto de paisagem, e como estas afetam de forma conjunta as espécies que habitam regiões tropicais alteradas pela ação humana ainda é limitada e um aumento deste conhecimento é urgente para uma melhor gestão e conservação destas mesmas paisagens. Os morcegos são a segunda ordem de mamíferos mais diversa e atingem o auge da sua diversidade taxonómica e ecológica nos Neotrópicos, onde desempenham importantes funções ecológicas. Devido à sua elevada abundância, diversidade funcional e “fácil” amostragem, são um bom modelo biológico para a investigação do efeito da alteração de habitat em florestas tropicais. Esta tese teve como objetivo principal contribuir para o conhecimento de como comunidades faunísticas tropicais respondem à fragmentação florestal ao longo dos eixos espaciais e temporais. Para tal foram usados morcegos como modelo biológico e os efeitos da fragmentação florestal na sua diversidade, abundância e composição foram estudados na paisagem experimental do Projeto de Dinâmica Biológica de Fragmentos Florestais (PDBFF), na Amazónia Brasileira. | pt_PT |
| dc.identifier.tid | 101443358 | pt_PT |
| dc.identifier.uri | http://hdl.handle.net/10451/28484 | |
| dc.language.iso | eng | pt_PT |
| dc.relation | TROPICAL FOREST FRAGMENTATION: EFFECTS ON THE SPATIAL-TEMPORAL DYNAMICS OF ITS BAT COMMUNITIES | |
| dc.relation | Temporal dynamics of the impacts of forest fragmentation on Neotropical bat assemblages | |
| dc.subject | Teses de doutoramento - 2017 | pt_PT |
| dc.title | Tropical forest fragmentation : effects on the spatio-temporal dynamics of its bat communities | pt_PT |
| dc.type | doctoral thesis | |
| dspace.entity.type | Publication | |
| oaire.awardTitle | TROPICAL FOREST FRAGMENTATION: EFFECTS ON THE SPATIAL-TEMPORAL DYNAMICS OF ITS BAT COMMUNITIES | |
| oaire.awardTitle | Temporal dynamics of the impacts of forest fragmentation on Neotropical bat assemblages | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F80488%2F2011/PT | |
| oaire.awardURI | info:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FBIA-BIC%2F111184%2F2009/PT | |
| oaire.fundingStream | 3599-PPCDT | |
| person.familyName | Teixeira Rocha | |
| person.givenName | José Ricardo | |
| person.identifier.ciencia-id | 4818-1B78-57E4 | |
| person.identifier.orcid | 0000-0003-2757-7347 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.identifier | http://doi.org/10.13039/501100001871 | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| project.funder.name | Fundação para a Ciência e a Tecnologia | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | doctoralThesis | pt_PT |
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| thesis.degree.name | Doutoramento em Biologia | pt_PT |