7 documents found, page 1 of 1
Rediscovery of the putatively extinct ant species Simopelta minima (Brandão) (H...
Brandão, Carlos Roberto Ferreira; Feitosa, Rodrigo Machado; Schmidt, Fernando Augusto; Solar, Ricardo Ribeiro de CastroSimopelta minima (Brandão, 1989) foi originalmente descrita com base em quatro operárias coletadas em amostras de solo provenientes de uma pequena plantação de cacau localizada em Ilhéus, Estado da Bahia, nordeste do Brasil. Nos anos seguintes à descrição, esta pequena plantação de cacau foi eliminada e a espécie passou a ser considerada extinta pelas instituições ambientais brasileiras. Recentemente foram cole...
Anthropogenic disturbance in tropical forests can double biodiversity loss from...
Solar, Ricardo Ribeiro de Castro; Barlow, Jos; Lennox, Gareth D.; Ferreira, Joice; Berenguer, Erika; Lees, Alexander C.; Nally, Ralph MacConcerted political attention has focused on reducing deforestation1,2,3, and this remains the cornerstone of most biodiversity conservation strategies4,5,6. However, maintaining forest cover may not reduce anthropogenic forest disturbances, which are rarely considered in conservation programmes6. These disturbances occur both within forests, including selective logging and wildfires7,8, and at the landscape le...
Biodiversity consequences of land-use change and forest disturbance in the Amaz...
Solar, Ricardo Ribeiro de Castro; Barlow, Jos; Andersen, Alan N.; Schoereder, José H.; Berenguer, Erika; Ferreira, Joice N.; Gardner, Toby AlanQuantifying and understanding the main drivers of biodiversity responses to human disturbances at multiple scales is key to foster effective conservation plans and management systems. Here we report on a detailed regional assessment of the response of ant communities to land-use change and forest disturbance in the Brazilian Amazon. We aimed to explore the effects of land-use intensification at both site and la...
How pervasive is biotic homogenization in human‐modified tropical forest landsc...
Solar, Ricardo Ribeiro de Castro; Barlow, Jos; Ferreira, Joice; Berenguer, Erika; Lees, Alexander C.; Thomson, James R.; Louzada, Júlio; Maués, MárciaLand-cover change and ecosystem degradation may lead to biotic homogenization, yet our under- standing of this phenomenon over large spatial scales and different biotic groups remains weak. We used a multi-taxa dataset from 335 sites and 36 heterogeneous landscapes in the Brazilian Amazon to examine the potential for landscape-scale processes to modulate the cumulative effects of local disturbances. Biotic homo...
Aggregation of cricket activity in response to resource addition increases loca...
Solar, Ricardo Ribeiro de Castro; Sperber, Carlos Frankl; Rosa, Cassiano Sousa; Szinwelski, NeucirCrickets are often found feeding on fallen fruits among forest litter. Fruits and other sugar-rich resources are not homogeneously distributed, nor are they always available. We therefore expect that crickets dwelling in forest litter have a limited supply of sugar-rich resource, and will perceive this and displace towards resource-supplemented sites. Here we evaluate how sugar availability affects cricket spec...
Partição da diversidade de formigas em uma paisagem fragmentada
Solar, Ricardo Ribeiro de CastroConselho Nacional de Desenvolvimento Científico e Tecnológico; Forest fragmentation events have been characterized as one of the main threats to biodiversity in modern times, and are the primary cause of species loss in tropical forests. Ants are organisms that present many suitable traits to be used in ecological studies, therefore they are frequently used in fragmentation surveys. However only epigaeic microh...
Effects of land-use change on tropical forest biodiversity: a multi-scale asses...
Solar, Ricardo Ribeiro de CastroConselho Nacional de Desenvolvimento Científico e Tecnológico; A Amazônia Brasileira compreende cerca de 40% das florestas tropicais do globo, abrigando uma enorme parte da biodiversidade mundial. Todavia, taxas alarmantes de desmatamento são encontradas por toda a região amazônica. Demandas cada vez mais altas por recursos naturais são uma das maiores ameaças a este ecossistema e portanto conservacionistas nec...