14 documents found, page 1 of 2
Diversidade de espécies dos gêneros de Crematogaster, Gnamptogenys e Pachycondy...
Souza, Jorge Luiz Pereira; Moura, C.A.R.; Harada, Ana Yoshi; Ribeiro, Elizabeth FranklinAs formigas são muito usadas em programas de inventários e monitoramentos, resultando em grande quantidade de material coletado com vários métodos, limitações financeiras e na falta de taxonomos para vários táxons. Para contribuir na elaboração de protocolos alternativos, analisamos a complementaridade de dois métodos de amostragem na detecção da riqueza de espécies. Em seis parcelas de 1 km² distribuídas em 33...
Predation of ants and termites by army ants, Nomamyrmex esenbeckii (Formicidae,...
Souza, Jorge Luiz Pereira; Moura, Carlos A.R.In four different localities in the Brazilian Amazon we registered raids of army ants (Nomamyrmex esenbeckii). The prey were ants of the genera Atta, Odontomachus and Camponotus and termites of the genus Nasutitermes. The behavior of the army ant and its prey were registered. Our observations expand the number of prey recorded in the literature. It is possible that the dietary regime of these army ants is more ...
Climate mediates the effects of disturbance on ant assemblage structure
Gibb, Heloise; Sanders, Nathan J.; Dunn, Robert R.; Watson, Simon J.; Photakis, Manoli; Abril, Sílvia; Andersen, Alan N.; Angulo, Elena; Armbrecht, IngeMany studies have focused on the impacts of climate change on biological assemblages, yet little is known about howclimate interacts with other major anthropogenic influences on biodiversity, such as habitat disturbance. Using a unique global database of 1128 local ant assemblages, we examined whether climate mediates the effects of habitat disturbance on assemblage structure at a global scale. Species richness...
Ant species distribution along a topographic gradient in a "terra-firme" forest...
Oliveira, Pollyana Yvonica de; Souza, Jorge Luiz Pereira; Baccaro, Fabricio Beggiato; Franklin, E.In Amazonia, topographical variations in soil and forest structure within "terra-firme" ecosystems are important factors correlated with terrestrial invertebrates' distribution. The objective of this work was to assess the effects of soil clay content and slope on ant species distribution over a 25 km2 grid covering the natural topographic continuum. Using three complementary sampling methods (sardine baits, pi...
Dataset of long-term monitoring of ground-dwelling ants (Hymenoptera: Formicida...
Fernandes, Itanna Oliveira; Souza, Jorge Luiz PereiraBackground Biodiversity loss is accelerating rapidly in response to increasing human influence on the Earth's natural ecosystems. One way to overcome this problem is by focusing on places of human interest and monitoring the changes and impacts on the biodiversity. This study was conducted at six sites within the influence area of the Santo Antônio Hydroelectric Power Plant in the margins of the Madeira River i...
Occurrence of Hymenoptera on pig carcasses in a tropical rainforest in Central ...
Somavilla, Alexandre; Souza, Jorge Luiz Pereira; Silva, A. O. da; Keppler, Ruth Leila FerreiraHymenotpera species may act as necrophagous, consuming decomposing tissues, as predators, when they feed on other immature and adult insects, and parasites of larvae and pupae of dipterans and coleopterans that colonize the carcasses. In this way, the fauna of four Hymenoptera families (Vespidae, Apidae, Icheneumonidae and Formicidae) associated to different decomposition stages of pig carcasses partially subme...
Synthesis of the first 10 years of long-term ecological research in Amazonian F...
Costa, Fernanda Vieira; Costa, Flávia Regina Capellotto; Magnusson, William Ernest; Franklin, E.; Zuanon, Jansen; Cintra, Renato; Luizão, Flávio JesusWe present a synthesis of the first 10 years of Long Term Ecological Research project in Amazonian Forest. We elucidate the natural dynamics of forest ecosystem processes and associated biota, and its changes caused by distinct pressures of selective timber extraction and forest fragmentation. We found that, for both plants and animals, densities of individuals and distribution of species assemblages are spatia...
Efficiency in inventories of ants in a forest reserve in central Amazonia
Souza, Jorge Luiz Pereira; Moura, Carlos Alberto Ribeiro de; Franklin, E.The objective of this work was to evaluate an inventory method efficiency for ants. We used subsamples collected in 24 transects of 100 m, distributed in 6 plots of 600 ha each in primary forest, as part of a long-term project. Ten litter subsamples were extracted per transect using Winkler extractors. Ants were identified to genus level, and Crematogaster, Gnamptogenys and Pachycondyla genera to species/morpho...
Diversity of parasitoid wasps in conventional and organic guarana (Paullinia cu...
Schoeninger, Karine; Souza, Jorge Luiz Pereira; Krug, Cristiane; Oliveira, Marcio Luiz deWe surveyed parasitoid wasps (Hymenoptera) in two guarana plantations in the central Brazilian Amazon (one conventionally, and one organically managed), as well as in adjacent forest and edge areas between crop and forest. We evaluated differences between management systems in parasitoid diversity and abundance, and assessed the importance of the surrounding matrix as a source of parasitoid wasps for guarana cu...
A comparison between time of exposure, number of pitfall traps and the sampling...
Gomes, C. B.; Souza, Jorge Luiz Pereira; Franklin, E.Using effective survey protocols to address the effects of environmental change are key to saving time, resources and costs. Although exhaustive sampling in any location has been shown as impractical, biodiversity sampling projects must capture sufficient information to show how species assemblages change with the environmental variables. This study investigated time of exposure in the field and the number of p...