Results 41 to 50 of about 3,163 (185)

Coleção de simuliídeos (Diptera - Simuliidae) de Adolpho Lutz, sua história e importância [PDF]

open access: yesHistória, Ciências, Saúde: Manguinhos, 2003
O presente trabalho é parte de uma dissertação de mestrado em elaboração no curso de pós-graduação em biologia animal da Universidade Federal do Rio de Janeiro (UFRJ), apoiado pela CAPES.
Ana Margarida Ribeiro do Amaral-Calvão   +1 more
doaj   +1 more source

Ecological and functional effects of habitat conversion and seasons on fruit‐feeding butterfly assemblages in tropical dry forests Efeitos ecológicos e funcionais da conversão do habitat e da sazonalidade sobre assembleias de borboletas frugívoras em florestas tropicais secas

open access: yesEcological Entomology, Volume 51, Issue 4, Page 760-773, August 2026.
Land‐use change and seasonality shape the taxonomic, functional and phylogenetic diversity of fruit‐feeding butterflies in tropical dry forests. Pastures reduce phylogenetic diversity and increase wing fluctuating asymmetry, while taxonomic and functional diversity is greater in the wet season than in the dry season.
João Rafael S. Macêdo   +8 more
wiley   +1 more source

O ESCARAVELHO Megasoma gyas (Herbst, 1775), ESPÉCIE AMEAÇADA DE EXTINÇÃO, NO PARQUE ESTADUAL CARLOS BOTELHO, SETE BARRAS − SP

open access: yesRevista do Instituto Florestal, 2007
As espécies do gênero Megasoma são besouros naturalmente raros e pouco conhecidos. Megasoma gyas (Herbst, 1775), espécie restrita ao território brasileiro e considerada ameaçada de extinção, foi encontrada no Parque Estadual Carlos Botelho em maio de ...
Alexsander Zamorano Antunes   +2 more
doaj   +1 more source

Impacts of land use change on diaspore‐dispersing ant assemblages in southwestern Amazonia

open access: yesInsect Conservation and Diversity, Volume 19, Issue 4, Page 908-917, July 2026.
Land use changes shift ant assemblages, more intensive land uses are dominated by generalist and open habitat specialist species engaging in group foraging. The diaspore removal rates cannot differ, but the quality of dispersal was lower in disturbed habitats.
Dhâmyla Bruna de Souza Dutra   +6 more
wiley   +1 more source

Fluctuating asymmetry in spider‐hunting wasps as a possible indicator of stress in Brazilian Atlantic Forest landscapes Assimetria flutuante em vespas caçadoras de aranhas como possível indicador de estresse em paisagens da Mata Atlântica brasileira

open access: yesEcological Entomology, Volume 51, Issue 3, Page 558-569, June 2026.
Agricultural cover was positively associated with fluctuating asymmetry in Trypoxylon opacum, suggesting a possible increase in developmental instability in intensively managed landscapes. Wing size was positively related to forest cover and negatively related to agricultural cover, indicating that forested landscapes may promote larger body size ...
Luana Vieira Carlin dos Santos   +3 more
wiley   +1 more source

The Red Queen unveils the sexual and mating strategies of flowers

open access: yesJournal of Ecology, Volume 114, Issue 5, May 2026.
Although the conventional wisdom is that floral traits of plants evolved in concert with their mutualistic pollinators, here we showed that several key sexual and mating traits of plants, which modulate their outcrossing strategy, evolved in response to the pressure exerted by their antagonistic insect herbivores.
Carlos Roberto Fonseca   +2 more
wiley   +1 more source

Polinização entomófila em abóbora caipira, Cucurbita mixta (Curcubitaceae) - DOI: 10.4025/actasciagron.v28i4.898

open access: yesActa Scientiarum. Agronomy, 2008
O objetivo do presente estudo foi avaliar os insetos visitantes nas flores masculinas e femininas da abóbora caipira (Cucurbita mixta), em Ribeirão Preto, Estado de São Paulo.
Luiz Henrique Lattaro   +1 more
doaj   +1 more source

Genetic structure and kdr mutations in Aedes aegypti populations along a road crossing the Amazon Forest in Amapá State, Brazil

open access: yesScientific Reports, 2023
Insecticide resistance in Aedes aegypti poses a significant threat to disease control. One form of resistance, caused by kdr mutations in the Na V gene, hinders vector control efforts in Brazil.
Barbara S. Souza   +5 more
doaj   +1 more source

Wasp and Ant Nests: Who Really Protects Whom? New Insights From Amazonian Forests

open access: yesAustral Ecology, Volume 51, Issue 5, May 2026.
ABSTRACT Studies of animal behaviour are often biased towards species that are large‐bodied or have broad geographic ranges, as these are easier to observe in nature. Consequently, our understanding of behavioural ecology is shaped by such biases, even though these studies have provided important insights.
Sergio Santorelli Junior   +4 more
wiley   +1 more source

Locomotor activity in males of Aedes aegypti can shift in response to females’ presence

open access: yesParasites & Vectors, 2018
Background The study of physiological and behavioral traits of mosquito vectors has been of growing relevance for the proposition of alternative methods for controlling vector-borne diseases.
Luciana Ordunha Araripe   +3 more
doaj   +1 more source

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