Results 81 to 90 of about 2,121 (214)

Biologia floral de Virola surinamensis (Rol.) Warb. (Myristicaceae) Virola surinamensis (Rol.) Warb. (Myristicaceae) floral biology

Revista Árvore, 2007
Neste artigo são apresentadas informações sobre a biologia floral de Virola surinamensis (Rol.) Warb. (Myristicaceae), espécie florestal dióica de relevante importância econômica na região amazônica. O estudo foi realizado em uma área de várzea próximo à
Mario Augusto Gonçalves Jardim, Cléo Gomes da Mota   +1 more
doaj   +1 more source

Where water meets rock: Ecological niches and diversity hotspots of hygropetric beetles in the Neotropics

Ecological Entomology, EarlyView.
First continental‐scale synthesis of hygropetric beetle diversity and distribution across Neotropical highlands. Climatic and topographic gradients structure regional assemblages and niche overlap. Ecological convergence suggests adaptation to similar conditions across disjunct regions.
Janderson Batista Rodrigues Alencar, Fabrício Beggiato Baccaro, Cesar J. Benetti, Vinícius da Costa‐Silva, Neusa Hamada   +4 more
wiley   +1 more source

Chiranthodendron pentadactylon Larreategui (Sterculiaceae): una especie polinizada por aves percheras

Botan‪ical Sciences, 1975
  Una suposición generalmente aceptada es la ausencia de plantas ornitófilas del Nuevo Mundo que tienen adaptaciones florales especializadas para posarse en las aves.
Victor Manuel Toledo
doaj   +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

Ecological Entomology, EarlyView.
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, Jean Pablo Alves de Deus, Milton Cezar Ribeiro, Maria Luisa Tunes Buschini   +3 more
wiley   +1 more source

Avaliação do padrão de visitação de Apis mellifera em três cultivares de meloeiro, em Petrolina-PE, Brasil

Revista Brasileira de Fruticultura, 2011
Para o cultivo do meloeiro, a presença de abelhas no período de florescimento é fundamental para garantir a polinização e incrementar a produção de frutos. Nesse sentido, o presente trabalho teve por finalidade verificar se há diferenças no comportamento
Lúcia Helena Piedade Kiill, Márcia de Sousa Coelho, Kátia Maria de Medeiros Siqueira, Nivaldo Duarte Costa   +3 more
doaj   +1 more source

How much sampling is enough? Four decades of understorey bird mist‐netting across Amazonia define the minimum effort to uncover species assemblage structure

Ibis, EarlyView.
Mist‐net sampling comprises a key methodological component of assemblage‐wide avifaunal studies, particularly in the understorey of closed‐canopy tropical forests. To investigate mist‐net bird captures and species assemblage structure, we compiled data from 312 sites across the Pan‐Amazon.
Pilar L. Maia‐Braga, Anderson S. Bueno, Richard G. Davies, Marina F. A. Maximiano, Torbjørn Haugaasen, Marina Anciães, John G. Blake, Bette A. Loiselle, Sergio H. Borges, Juliana Menger, Sidnei Dantas, Ramiro D. Melinski, Fernando H. T. de Abreu, Roberta L. Boss, Carlos A. Peres   +14 more
wiley   +1 more source

Estimating wild bee population size with validated distance sampling

Insect Conservation and Diversity, EarlyView.
Distance Sampling is a promising method to estimate population size but has never been validated on insects. We validated it on a honey bee population of known size. We applied Distance Sampling to three insular pollinators and found that estimates are consistent across days, match species phenology and reflect the expected influence of weather ...
Claudia Bruschini, Marco Penco, Olga Barghigiani, Adele Bordoni, Lorenzo Pasquali, Vania Salvati, Leonardo Dapporto, Alessandro Cini   +7 more
wiley   +1 more source

Floral biology of candeia (Eremanthus erythropappus, Asteraceae)

Biologia floral da candeia (Eremanthus erythropappus, Asteraceae) [PDF]

Pesquisa Florestal Brasileira, 2012
Floral biology and pollinators of candeia (Eremanthus erythropappus) were analyzed in a natural population. We studied anthesis, flower morphology, stigmatic receptivity, pollen viability and floral visitors.
Fábio de Almeida Vieira, Cristiane Gouvêa Fajardo, Dulcinéia de Carvalho   +2 more
doaj  

Priority areas for arthropod conservation in the Iberian Peninsula and Balearic Islands: Insights from a multi‐taxon distributional database

Insect Conservation and Diversity, EarlyView.
Using over 416,000 occurrence records from 13 arthropod groups (6233 arthropod species), we mapped large‐scale richness patterns and identified biodiversity hotspots across the Iberian Peninsula and Balearic Islands. Hotspot congruence among arthropod groups was low, underscoring the importance of integrative, multi‐taxon approaches for conservation ...
David Sánchez‐Fernández, Saray Mañas‐Jordá, Antonio J. García‐Meseguer, Raúl Acosta, Arturo Ariño, Enrique Baquero, Ignasi Bartomeus, Gabriel de Biurrun, Núria Bonada, David Galicia, Enrique García‐Barros, Mario García‐París, Emilio García‐Roselló, Diego Gil‐Tapetado, Marcos González, Pilar Jurado‐Angulo, Manuel Jesús López‐Rodríguez, Jesús Martínez, Andrés Millán, Víctor J. Monserrat, Eduardo Morano, Miguel L. Munguira, Susana Pallarés, Félix Pina, Carlos E. Prieto, Helena Romo, Carlota Sánchez‐Campaña, Pol Sar, José Manuel Tierno de Figueroa, José Luis Yela, Jorge M. Lobo   +30 more
wiley   +1 more source

A new endemic pearl cichlid of the ‘Geophagus’ brasiliensis (Cichliformes: Cichlidae) species group from the Piranga River, upper Doce River basin, southeastern Brazil

Journal of Fish Biology, EarlyView.
Abstract A new species of pearl cichlid of the ‘Geophagus’ brasiliensis species group, endemic to the Piranga River, a major tributary of the upper Doce River basin in the state of Minas Gerais, southeastern Brazil, is herein described. The new species is delimited using an integrative approach, with molecular‐based species delimitation methods coupled
Cidimar E. de Assis, Jorge A. Dergam, Amanda F. Cunha, Valéria N. Machado, Tomas Hrbek, Natállia M. de F. Vicente, Victor de Queiroz, Elisabeth Henschel   +7 more
wiley   +1 more source