The Neotropical genus Pselaphomorphus Motschulsky, 1855 (Coleoptera: Staphylinidae: Pselaphinae: Jubini Raffray) is revised, including the redescription of P. sculpturatus Motshulsky, 1855 (Panama), P. longiceps Raffray, ...

Leaf litter is a major source of nutrients for heterotrophic organisms in aquatic ecosystems in which microorganisms contribute significantly to the breakdown process of leaf litter. Fungi as aquatic hyphomycetes are ...

Invasive species are a major focus within conservation biology. The widely introduced cane toad, Rhinella marina, has gained particular interest in studies of effects of invasive species on native communities. In this study ...

Seasonal rains and the inflowof seawater into the Cabo Rojo salterns, Puerto Rico, induce changes in the concentration of dissolved salts. These environmental variations should have an effect in the composition and species ...

Thiara (Tarebia) granifera and Melanoides tuberculata are invasive parthenogenetic snails that impact food webs in tropical freshwater systems. Due to their high reproductive rate, both snails dominate the community of ...

Benthic algal communities are often the dominant primary producers and important energy source o higher trophic levels in rivers and streams. The composition and abundance of benthic algae and relationships with ...

Setophaga angelae, the Elfin-woods warbler (EWWA), is an insectivorous bird endemic to Puerto Rico. Currently, two isolated populations of this species are found: one at the El Yunque National Forest, the other in the ...

Artificial reservoirs, as well as the natural lakes, are threatened by the contamination, fertilization (nutrients) or the gradual eutrophication of their waters, with the subsequent loss of water quality. Therefore, ...

The purpose of this study was to determinate the availability of potential preys for the Black‐necked Stilt, Himantopus mexicanus (Aves, Charadriformes, Recurvirostridae), and to document details of its foraging ecology ...

Laguna Cartagena, located in the municipality of Lajas, is the only natural freshwater lagoon of Puerto Rico. The lagoon gives refuge to many animal and plant species, some of them endemic and endangered. Agriculture in ...