Effect of human land-use and natural coverage on taxonomic and functional richness of mammals and birds at regional scale

The variation in species richness has been explained by two major hypotheses: 1) Energy and Water dynamics, which explains the latitudinal gradient of biodiversity; and 2) Habitat Heterogeneity hypothesis, which shows that structurally more complex environments provide more niches by adding species...

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Autor: Montero, Guillermo Leonardo Florez
Tipo de recurso: tesis de maestría
Estado:Versión publicada
Fecha de publicación:2017
País:Brasil
Institución:Universidade Federal do ABC (UFABC)
Repositorio:Repositório Institucional da UFABC
Idioma:inglés
OAI Identifier:oai:BDTD:110416
Acceso en línea:http://biblioteca.ufabc.edu.br/index.php?codigo_sophia=110416&midiaext=76038
http://biblioteca.ufabc.edu.br/index.php?codigo_sophia=110416&midiaext=76038/index.php?codigo_sophia=110416&midiaext=76037
Access Level:acceso abierto
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spelling info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisEffect of human land-use and natural coverage on taxonomic and functional richness of mammals and birds at regional scale2017-06-19Werneck, Márcio de SouzaUniversidade Federal do ABCPrograma de Pós-Graduação em Evolução e DiversidadeUFABCengRIQUEZA DE ESPÉCIESAVESMAMUSO ANTRÓPICO DA TERRASÃO PAULO (SP)SPECIES RICHNESSBIRDSMAMMALSANTHROPIC LAND-USEPROGRAMA DE PÓS-GRADUAÇÃO EM EVOLUÇÃO E DIVERSIDADE - UFABCThe variation in species richness has been explained by two major hypotheses: 1) Energy and Water dynamics, which explains the latitudinal gradient of biodiversity; and 2) Habitat Heterogeneity hypothesis, which shows that structurally more complex environments provide more niches by adding species diversity. Nevertheless, small scale studies have been pointed out the importance of the relationship between the number of species and the internal structure of the habitat and its disturbances. Due to the extensive effect of human disturbances on the biosphere, a more complex view of the relationships between human-modified tropical landscapes and their effects on all dimensions of biological diversity is necessary to ensure the success of biodiversity conservation and the management of the ecosystems functions. In this work, we analyzed the effect of anthropic land-use and natural coverage on the species richness of birds and mammals and mammalian guilds in the state of São Paulo, Brazil. We focused on three phases: 1) Energy - Water 2) Natural Coverage as an approximation to environment heterogeneity and 3) Anthropic land-use as an approximation to the effect of human disturbances. Using the Maximum Likelihood approach to select models, we selected the best explanatory variables for species richness to perform models to test the three hypotheses proposed to explain the richness of each group, the individual effect of each variable was also analyzed. Our database presented a great bias product of an unequal sampling effort along the grid that was attenuated by the selection of the best-surveyed cells through a complementarity analysis. We found that the anthropic land-use is the best explanatory hypothesis for birds and mammals richness. For mammalian guilds richness the Energy + Water hypothesis occupies the second place contrasting with the results widely presented in the literature, and revealing the importance of factors associated with human impact at regional scale. It emphasizes the positive relationship between richness and native vegetation cover, Conservation Units and Reforestation, and the negative relationship with the agricultural land-use. That reveals the importance of designing management policies that involve the conservation of remnants of native vegetation, the maintenance and creation of protected areas, and the focus of reforestation efforts for a more complex Forest Transition promoting the landscape connectivity.http://biblioteca.ufabc.edu.br/index.php?codigo_sophia=110416&midiaext=76038http://biblioteca.ufabc.edu.br/index.php?codigo_sophia=110416&midiaext=76038/index.php?codigo_sophia=110416&midiaext=76037application/pdfapplication/pdfreponame:Repositório Institucional da UFABCinstname:Universidade Federal do ABC (UFABC)instacron:UFABCinfo:eu-repo/semantics/openAccessMontero, Guillermo Leonardo Florez2025-04-02T21:45:55Zoai:BDTD:110416Repositório InstitucionalPUBhttp://www.biblioteca.ufabc.edu.br/oai/oai.phpopendoar:2025-04-04T23:52:47.204859Repositório Institucional da UFABC - Universidade Federal do ABC (UFABC)false
dc.title.pt.fl_str_mv Effect of human land-use and natural coverage on taxonomic and functional richness of mammals and birds at regional scale
title Effect of human land-use and natural coverage on taxonomic and functional richness of mammals and birds at regional scale
spellingShingle Effect of human land-use and natural coverage on taxonomic and functional richness of mammals and birds at regional scale
Montero, Guillermo Leonardo Florez
title_short Effect of human land-use and natural coverage on taxonomic and functional richness of mammals and birds at regional scale
title_full Effect of human land-use and natural coverage on taxonomic and functional richness of mammals and birds at regional scale
title_fullStr Effect of human land-use and natural coverage on taxonomic and functional richness of mammals and birds at regional scale
title_full_unstemmed Effect of human land-use and natural coverage on taxonomic and functional richness of mammals and birds at regional scale
title_sort Effect of human land-use and natural coverage on taxonomic and functional richness of mammals and birds at regional scale
dc.creator.none.fl_str_mv Montero, Guillermo Leonardo Florez
author Montero, Guillermo Leonardo Florez
author_facet Montero, Guillermo Leonardo Florez
author_role author
dc.contributor.advisor1.fl_str_mv Werneck, Márcio de Souza
contributor_str_mv Werneck, Márcio de Souza
description The variation in species richness has been explained by two major hypotheses: 1) Energy and Water dynamics, which explains the latitudinal gradient of biodiversity; and 2) Habitat Heterogeneity hypothesis, which shows that structurally more complex environments provide more niches by adding species diversity. Nevertheless, small scale studies have been pointed out the importance of the relationship between the number of species and the internal structure of the habitat and its disturbances. Due to the extensive effect of human disturbances on the biosphere, a more complex view of the relationships between human-modified tropical landscapes and their effects on all dimensions of biological diversity is necessary to ensure the success of biodiversity conservation and the management of the ecosystems functions. In this work, we analyzed the effect of anthropic land-use and natural coverage on the species richness of birds and mammals and mammalian guilds in the state of São Paulo, Brazil. We focused on three phases: 1) Energy - Water 2) Natural Coverage as an approximation to environment heterogeneity and 3) Anthropic land-use as an approximation to the effect of human disturbances. Using the Maximum Likelihood approach to select models, we selected the best explanatory variables for species richness to perform models to test the three hypotheses proposed to explain the richness of each group, the individual effect of each variable was also analyzed. Our database presented a great bias product of an unequal sampling effort along the grid that was attenuated by the selection of the best-surveyed cells through a complementarity analysis. We found that the anthropic land-use is the best explanatory hypothesis for birds and mammals richness. For mammalian guilds richness the Energy + Water hypothesis occupies the second place contrasting with the results widely presented in the literature, and revealing the importance of factors associated with human impact at regional scale. It emphasizes the positive relationship between richness and native vegetation cover, Conservation Units and Reforestation, and the negative relationship with the agricultural land-use. That reveals the importance of designing management policies that involve the conservation of remnants of native vegetation, the maintenance and creation of protected areas, and the focus of reforestation efforts for a more complex Forest Transition promoting the landscape connectivity.
publishDate 2017
dc.date.issued.fl_str_mv 2017-06-19
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://biblioteca.ufabc.edu.br/index.php?codigo_sophia=110416&midiaext=76038
http://biblioteca.ufabc.edu.br/index.php?codigo_sophia=110416&midiaext=76038/index.php?codigo_sophia=110416&midiaext=76037
url http://biblioteca.ufabc.edu.br/index.php?codigo_sophia=110416&midiaext=76038
http://biblioteca.ufabc.edu.br/index.php?codigo_sophia=110416&midiaext=76038/index.php?codigo_sophia=110416&midiaext=76037
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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dc.publisher.none.fl_str_mv Universidade Federal do ABC
dc.publisher.program.fl_str_mv Programa de Pós-Graduação em Evolução e Diversidade
dc.publisher.initials.fl_str_mv UFABC
publisher.none.fl_str_mv Universidade Federal do ABC
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFABC
instname:Universidade Federal do ABC (UFABC)
instacron:UFABC
instname_str Universidade Federal do ABC (UFABC)
instacron_str UFABC
institution UFABC
reponame_str Repositório Institucional da UFABC
collection Repositório Institucional da UFABC
repository.name.fl_str_mv Repositório Institucional da UFABC - Universidade Federal do ABC (UFABC)
repository.mail.fl_str_mv
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