Browsing PPG - Ecologia e Evolução by Issue Date
Now showing items 21-40 of 78
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Morfologia comparada da cabeça de Pentatomidae (Hemiptera: Heteroptera)
(Universidade Federal de São Paulo, 2015-07-29)The heteropteran head presents a high specialization level, making this group known for having, among other features, their piercing and sucking mouthparts in the anterior part of the head. Pentatomidae is the forth most ...
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Uso de químicos no reconhecimento sexual de opiliões (Arachnida: Opiliones)"
(Universidade Federal de São Paulo, 2015-07-30)Several arthropod species use chemicals to detect sexual partners. In harvestmen (Arachnida, Opiliones) there are evidences that chemicals have an important role in intra-specific communication. Using the behavior of ...
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Efeito da heterogeneidade da paisagem sobre redes de interações plantas-polinizadores
(Universidade Federal de São Paulo, 2015-07-30)Most studies about the effects of anthropogenic landscape changes on biodiversity have focused on parameters such as species richness and abundance. Few are those that aim to understand the effects of these disturbances ...
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Ilhas de floresta nas alturas: inferindo processos históricos associados às distribuições de aves montanas da Mata Atlântica
(Universidade Federal de São Paulo, 2015-07-31)The mountains of the Brazilian Atlantic Forest have a high degree of endemism and its biogeographical history is poorly explored. One hypothesis for the diversification of montane organisms, related to the refuge theory, ...
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Variação geográfica no tamanho corporal e dimorfismo sexual de tamanho em uma espécie de besouro predador de sementes de Leucaena leucocephala
(Universidade Federal de São Paulo, 2015-07-31)A central question in ecology and evolutionary biology is to explain large-scale spatial patterns of variation in body size. Explaining these patterns is important because larger individuals may show advantages in fitness ...
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A quantidade de mata como principal influência em bandos mistos de aves de Mata Atlântica fragmentada
(Universidade Federal de São Paulo, 2015-07-31)Forest fragmentation and habitat loss are considered the major threats to biodiversity. Studies of the effects of these processes on the species should also include landscape analysis rather than just local analysis as in ...
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Uso de hábitat e período de atividade do sapinho botão de ouro Brachycephalus ephippium
(Universidade Federal de São Paulo, 2015-07-31)Anurans are ectothermics and have permeable skin; therefore, they respond to changes in humidity and temperature conditions of the microhabitat. Thus, these environmental factors, as well as prey availability, must influence ...
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Termorregulação e desempenho fisiológico de Thorapa taophora (Anura: Cycloramphidae)
(Universidade Federal de São Paulo, 2015-07-31)Ectotherms must regulate body tempetarute inside a tolerable range of temperature to optmize physiological functions. In this context, behavioural thermoregulation is an important strategy for metabolic compensation. Shifts ...
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Bens e serviços ecossistêmicos da Bacia Hidrográfica da Represa Guarapiranga: análise da evolução histórica e valoração ambiental, entre os anos de 1986, 1996 e 2010
(Universidade Federal de São Paulo, 2015-09-30)The ecosystem functions can be considered goods and services when they serve to generate and maintain the human activities and well being. However, the economic markets generally neglect the participation of those services ...
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O papel da modulação autonômica nos ajustes de temperatura em teiús (Salvator merianae)
(Universidade Federal de São Paulo, 2015-10-29)There is evidence that in reptiles there is the ability to regulate the rate of heat exchange between the body and the means adjusting the peripheral blood flow and for this by increasing or decreasing the heart rate. This ...
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Qual a importância do tamanho dos predadores e da predação sobre recrutas para a organização de comunidades incrustantes marinhas?
(Universidade Federal de São Paulo, 2015-11-05)Predation represents a strong factor able to shape the richness of species, composition and relative abundance in marine communities. However, the size of predators, their feed preferences, preys vulnerability and development ...
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Diversidade de heterópteros terrestres (Insecta: Hemiptera: Heteroptera) na Serra do Japi, Sudeste do Brasil
(Universidade Federal de São Paulo, 2015-12-18)It is estimated that in Brazil there are between 4,000 and 6,000 species of Heteroptera, however, knowledge about the regional fauna is still limited. For the state of São Paulo, the knowledge of the fauna of Heteroptera ...
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Diversidade e biogeografia das espécies arbóreas da tribo Crotoneae (Euphorbiaceae) na floresta atlântica
(Universidade Federal de São Paulo, 2016-06-17)The Atlantic Forest is considered one of the world's hotspots of biodiversity and, even with the growing threat to its ecosystems, has a high level of biological diversity and endemism. Euphorbiaceae is one of the largest, ...
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Filogenia molecular de chamaeza vigors, 1825 (aves, formicariidae) e implicações para a história evolutiva das florestas da América do Sul
(Universidade Federal de São Paulo, 2016-06-24)There are some extremely biodiverse regions in South America such as the Andes, the Amazon and the Atlantic Forest. The historical processes that originated and maintain such diversity are still not fully understood. Our ...
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Variação morfológica entre populações insulares e continentais de anuros (amphibia)
(Universidade Federal de São Paulo, 2016-07-22)The island organisms undergo ecological and evolutionary pressures different from their mainland conspecifics due to reduced area and isolation. As for the body size of animals, gigantism and dwarfism are two standards ...
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Especiação em papa-formigas (aves: myrmoderus, thamnophilidae) da mata atlântica: o papel de sinais acústicos no reconhecimento específico
(Universidade Federal de São Paulo, 2016-07-26)Bird vocalizations are important signals in specific recognition, mediating territorial competition as well as female choice. In birds, population divergence in vocalizations can act as barriers to gene flow, leading to ...
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Efeito da quantidade de floresta da paisagem sobre a estrutura de redes de interação planta-visitantes florais em áreas de restauração florestal
(Universidade Federal de São Paulo, 2016-11-10)With less than 16% of its original extent, the Atlantic Forest has been restored in order to rebuild the functional richness of biological communities. However, verification of the effectiveness of restoration actions ...
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Origem e diversificação do lagarto partenogenético Loxopholis percarinatum (gymnophthalmidae: ecpleopodini), um complexo de espécies endêmico da Amazônia
(Universidade Federal de São Paulo, 2016-11-22)The small lizards of the genus Loxopholis inhabit the leaf litter of Central and South America tropical forests. The genus includes 10 bisexual species and the unisexual L. percarinatum, the latter widely distributed ...
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Evolução cromossômica em escorpiões brasileiros de gênero rhopalurus (buthidae) e espécies relacionadas
(Universidade Federal de São Paulo, 2016-12-04)Scorpiones has a great diversity of species and very particular chromosomal characteristics, such as holocentric and monocentric chromosomes, absence of genetic recombination during meiosis and great interspecific and ...
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Análise filogenética e cromossômica de escorpiões do "complexo" Tityus trivittatus,1898 (Buthidae)
(Universidade Federal de São Paulo, 2017-03-23)The family Buthidae family is the largest within the order Scorpiones, with approximately 90 genera and 1,100 species. The genus Tityus is the richest, including more than 220 species distributed in Central and South ...
