Extinction Biology
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Science and evolution
Abstract Evolution is both a fact and a theory. Evolution is widely observable in laboratory and natural populations as they change over time. The fact that we need annual flu vaccines is one example of observable evolution. At the same time, evolutionary theory explains more than observations, as the succession on the fossil record. Hence, evolution is also
Genet. Mol. Biol.. Publicado em: 28/02/2019
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2. Gender-related diet composition and morphometry of the Restinga Antwren, Formicivora littoralis (Aves: Thamnophilidae)
Formicivora littoralis (Gonzaga and Pacheco, 1990), the Restinga Antwren, considered the only endemic bird species of the Restinga ecosystem (sandy plain coastal vegetation), is threatened with extinction. The scientific literature provides little information on the biology of this bird, which was discovered in 1990. We evaluate gender-related differences in
Zoologia (Curitiba). Publicado em: 13/12/2013
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3. Monitoramento genético da população Ex Situ da jacutinga (Aburria jacutinga, Aves, Cracidae) como subsídio para a conservação da espécie
Several critically endangered species and subspecies have been saved from extinction in recent years by Ex Situ conservation strategies. However, captive populations are generally small and exposed to the effects of genetic drift, inbreeding and founder effects. Thus, a major challenge for long-term reproduction of these animals is to reduce the loss of hete
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/06/2012
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4. Estrutura populacional, crescimento somático e alométrico, biologia reprodutiva e estimativa do tamanho populacional de Aegla perobae Hebling &Rodrigues, 1977 do município de São Pedro, estado de São Paulo / Population structure, somatic and allometric growth, reproductive biology and population size estimation of Aegla perobae Hebling &Rodrigues, 1977 in São Pedro, São Paulo state
Aeglids are endemic to the neotropical South America. They are restricted to freshwaters, mainly occurring under rocks and fragmented leaves or buried in the sand (Burns, 1972; Rodrigues &Hebling, 1978; Swiech-Ayoub &Masunari 2001a) in lakes, rivers, streams and even rivers running into caves. The aeglids are important links in the food chain of freshwater e
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/09/2011
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5. Biotécnicas da reprodução animal aplicadas à conservação de cervídeos.
The present work aimed to present a literature research about two deer species - Blastocerus dichotomus (llliger, 1815) - Cervo-do-pantanal and Ozotocerus bezoarticus (Linnaeus, 1758) - Veado-campeiro, due to their importance in Central Brazil. The main aspects studied were: species biology, density and populational distribution; factors related to their dec
Planaltina. Publicado em: 2011
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6. MODELOS DE DISTRIBUIÇÃO GEOGRÁFICA POTENCIAL: APLICAÇÃO COM PLANTAS AMEAÇADAS DE EXTINÇÃO DA FLORESTA ATLÂNTICA
ABSTRACT KAMINO, L.H.Y. (2009). Potential Models of Species Geographical Distribution: an essay with threatened species from Atlantic Forest. Ph.D. Thesis Instituto Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte. Advisor: João Renato Stehmann. Potential Models of Species Distribution have been used as important tools in conserva
Publicado em: 2009
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7. Ecoregion priorization for terrestrial vertebrate conservation / Priorização de ocorregiões para a conservação de vertebrados terrestres
I aimed to identify conservation priorities for terrestrial vertebrates across different spatial scales (from regional/continental to global), using ecoregions as geographic units. I have evaluated, in particular, (1) the congruence between overall richness and endemism patterns among terrestrial vertebrates that occur in Brazil, and the effectiveness of eac
Publicado em: 2008
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8. Biologia reprodutiva de espécies raras e ameaçadas de extinção de Dorstenia, L. (Moraceae) / Reproductive biology of rare and threatened of extinction species of Dorstenia, L. (Moraceae)
Dorstenia (Moraceae) inclui representantes herbáceos que habitam os subbosques de diversos biomas brasileiros, como a Floresta Atlântica, principal área de distribuição. A maioria das espécies apresenta distribuição restrita e são consideradas raras. Inúmeras estão ameaçadas de extinção devido à perda de seus hábitats. No período de 2004 a 2
Publicado em: 2008
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9. Extinction of canid populations by inbreeding depression under stochastic environments in Southwestern Goiás State: a simulation study
A frequently addressed question in conservation biology is what is the chance of survival for a population for a given number of years under certain conditions of habitat loss and human activities. This can be estimated through an integrated analysis of genetic, demographic and landscape processes, which allows the prediction of more realistic and precise mo
Genetics and Molecular Biology. Publicado em: 2007
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10. Reproductive Biology, Population Dynamics and Risk of Extinction of Aegla strinatii Türkay, 1972 (Crustacea, Decapoda, Aeglidae) / Biologia reprodutiva, estrutura e dinâmica populacional e avaliação do grau de risco de extinção de Aegla strinatii Türkay, 1972 (Crustacea, Decapoda, Aeglidae)
This study aims to contribute for preservation of the only known population of Aegla strinatii and to reinforce the necessity to preserve the areas where this species occur. Therefore, monthly collections were realized during a two year period at Jacupiranga State Park which is considered to be the second largest conservation unit of São Paulo State. The sp
Publicado em: 2007
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11. AnÃlise da estrutura genÃtica e biologia reprodutiva do papagaio-verdadeiro (amazona aestiva)
Information on biology, ecology and genetic variability of a specie are ultimate to subsidize the elaboration of strategies of conservation of its natural populations. The blue-fronted amazon (Amazona aestiva) presents a widespread distribution and is still abundant in some areas of occurrence, therefore it is not under threat of extinction. However, it is o
Publicado em: 2007
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12. Taxonomy and etnobotany of Leguminosae Adans. in fragments and agroforest systems in Zona da Mata Mineira / Taxonomia e etnobotânica de Leguminosae Adans. em fragmentos florestais e sistemas agroflorestais na Zona da Mata Mineira
The work consists of the taxonomic and etnobotamical study of Leguminosae in forest fragments and agroforest systems (AFSs) in the Municipality of Araponga, Minas Gerais. The diversity of Leguminosae that occur in two forest fragments and in seven (AFSs) locatede around the Parque Estadual da Serra do Brigadeiro (PESB) is presented, with etnobotanical inform
Publicado em: 2007