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Now showing items 281-290 of 435
Estudo dos aspectos demográficos da onça-parda (Puma concolor) na Estação Ecológica de Itirapina no estado de São Paulo por meio da análise de amostras não invasivas
(Universidade Federal de São Carlos, 2013-02-25)
Landscape fragmentation and habitats loss caused by human activities have led to a decline cougar populations (Puma concolor). Delimiting populations and establish rates of migration between them is essential to understanding ...
Atividade fitotóxica de Serjania lethalis A. St.-Hil. e Sapindus saponaria L. (Sapindaceae) e identificação de metabólitos secundários
(Universidade Federal de São Carlos, 2015-03-06)
The organization and dynamic of community are determined, among other factors, by the balance of positive and negative interactions of species. Research of plants with allelopathic activity comes from the need to introduce ...
Biodiversidade da fauna subterrânea na área cárstica de São Domingos, nordeste de Goiás: relevância versus visibilidade de táxons
(Universidade Federal de São Carlos, 2013-06-17)
In this issue, we did a survey of subterranean fauna in a karstic area from northeast of Goiás, considering both the tiny aquatic invertebrates as representatives of terrestrial communities. We verify the species composition ...
Avaliação da integridade de córregos a partir das características da paisagem: teste do protocolo WHEBIP para uma região tropical
(Universidade Federal de São Carlos, 2013-08-29)
Lotic systems are highly influenced by the landscape through which they flow, and changes in the landscape are the main threat to their ecological integrity. Evaluating the ecological "health" of lotic systems is essential ...
Estudos bioecológicos dos afídeos da alfafa
(Universidade Federal de São Carlos, 2013-02-08)
Aphids (Hemiptera: Aphidoidea) are insects considered as pests in many crops. Acyrthosiphon pisum, Aphis craccivora and Therioaphis trifolii f. maculata, occur often in alfalfa crops (Medicago sativa) in Brazil, causing ...
Invasibilidade de Hovenia dulcis Thunberg (Rhamnaceae) em Floresta Atlântica no sul do Brasil
(Universidade Federal de São Carlos, 2015-03-13)
Biological invasions are a major threat to biodiversity conservation, and many studies have been conducted to give an answer to why some ecosystems are more invaded than others. Canopy openness and the litter thickness may ...
Influência da estrutura da vegetação de um fragmento florestal nas características físicas e químicas da água e no funcionamento do ecossistema de um córrego rural
(Universidade Federal de São Carlos, 2012-05-18)
Riparian ecosystems are being rapidly degraded due to deforestation for conversion of natural areas to agriculture, pasture, and urban development. In rural areas, riparian forest remnants can be very important for ...
Ecologia da invasora Hedychium coronarium J. König (Zingiberaceae)
(Universidade Federal de São Carlos, 2014-12-12)
Because the importance of invasive plant species in biological diversity reduction and environmental quality depreciation, there is great studies need addressing these organisms development, invasive potential and changes ...
Aspectos bionômicos de geometridae (Lepidoptera) associados a plantas de mata atlântica na reserva biológica da Serra do Japi, Jundiaí, SP
(Universidade Federal de São Carlos, 2014-04-04)
Immature stages of Geometridae (Lepidoptera) and their parasitoids (Ichneumonoidea and Chalcidoidea) were recorded and collected in two areas of Serra do Japi Municipal Biological Reserve, in Jundiaí, São Paulo. Occurrence ...
Coleoptera aquáticos associados à macrófita Salvinia Séguier, 1754 em ambientes lênticos no Estado de São Paulo
(Universidade Federal de São Carlos, 2014-06-05)
Coleoptera is the largest and most diverse order among the Insecta with approximately 400,000 species, the majority terrest, however about 12 thousand species are aquatic. In order to know the Coleoptera fauna associated ...