Results 121 to 130 of about 3,790 (211)
O presente experimento avaliou o desempenho e sobrevivência de juvenis de matrinxã Brycon orthotaenia cultivados em tanques-rede de 4 m3, por 197 dias, em três densidades de estocagem: 20, 40 e 60 peixes m-3. Foram utilizados exemplares com 19,9 ± 0,3 cm
Marcelo Mattos Pedreira +3 more
doaj
Contrary to fire suppression policies that promote ecological homogenization, we suggest that patchy prescribed fires could be used to enhance spatiotemporal diversity in the Cerrado by promoting fine‐scale heterogeneity in floral resources and resource‐mediated plant–bee interactions.
Caio S. Ballarin +4 more
wiley +1 more source
Generally, delayed restoration of adult‐only epiphyte populations into older restored forests improves conservation outcomes. However, restoration can be optimised, initially introducing large populations of fast‐growing, light‐when‐mature species in younger forests followed by the later introduction of slow‐growing, heavy‐when‐mature species in ...
Zachary Chu +5 more
wiley +1 more source
Five new species of Hemibrycon (Characiformes: Characidae) from the Río Magdalena basin, Colombia
Five new fish species of the genus Hemibrycon are described from the Río Magdalena basin, Colombia, using morphometric, meristic and osteological characters. Hemibrycon paez (n=40) differs in number of lateral line scales (39 to 42 vs.
César Román-Valencia +1 more
doaj
The predatory behavior of ants: an impressive panoply of morphological adaptations
This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Alain Dejean +6 more
wiley +1 more source
DNA metabarcoding of honey bee pollen reserves from Amazonas region reveals that microbial communities are strongly shaped by their ecosystem. Despite high taxonomic turnover across different habitats, these microbiomes maintain stable, essential functions for pollinator health, though they remain highly vulnerable to habitat homogenization.
Jessica C. Llaja +5 more
wiley +1 more source
It is believed that different genetic populations of migratory fishes can co-exist in a single hydrographic system. Although different populations may occupy and explore the river together, they segregate during the spawning season and consequently the ...
Alexandra Sanches +1 more
doaj
Across 1639 endemic Mexican species, we show that most species' ranges coincide with moderate to high human pressure, while existing conservation lands cover only a small fraction of their distributions. This spatial mismatch indicates that current conservation–land networks are insufficient to prevent future biodiversity loss. Substantial expansion of
Erik Joaquín Torres‐Romero +6 more
wiley +1 more source
Sexual dimorphism and stress‐induced stridulatory responses in Jaguajir rochae (Borelli, 1910). Females exhibited greater absolute pectinal size and higher sound pressure levels, whereas males showed higher pectinal allometric ratios relative to body size, lower sound frequencies, and shorter delta times.
Welton Dionisio‐da‐Silva +4 more
wiley +1 more source

