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A comparison of stereo-videos and visual census methods for assessing subtropical rocky reef fish assemblage
(2022-03-01)
Visual census conducted by divers has remained the most common method for obtaining quantitative data on reef fish assemblages since it was first applied in the 1950s. More recently, stereo-video systems are increasingly ...
Taxonomic and Functional Diversity of Aquatic Macroinvertebrate Assemblages and Water Quality in Rivers of the Dry Tropics of Costa Rica
(2021-08)
One of Costa Rica’s driest areas is the province of Guanacaste, in the Pacific Northwest, with almost no rain during the dry season from November to April. Due to this marked seasonality, the area is covered by dry tropical ...
Bird Assemblages in Anthropogenic Habitats: Identifying a Suitability Gradient for Native Species in the Atlantic Forest
(Wiley Blackwell Publishing, Inc, 2012-05)
Traditional approaches to the study of species persistence in fragmented landscapes generally consider a binary classification of habitat being suitable or unsuitable; however, the range of human-modified habitats within ...
Seasonal changes in a fish assemblage associated with mangroves in a coastal lagoon of Baja California Sur, Mexico
(Pontificia Universidad Católica de Valparaíso<BR>Facultad de Recursos Naturales<BR>Escuela de Ciencias del Mar, 2011)
Effects of landscape and desertification on the macroinvertebrate assemblages of rivers in Andean Patagonia
(E. Schweizerbart'sche Verlagsbuchhandlung, 2004-02-20)
Spatial patterns in macroinvertebrate assemblage structure were examined in rivers from 6 main basins in the mountains and the Patagonian plateau, Argentina. Surber samples were taken during the low water period from 36 ...
Resource partitioning in a snake assemblage from east-central Argentina
(Academia Brasileira de Ciencias, 2020-06-03)
Two dimensions of the ecological niche (diet and habitat) of a snake assemblage from an endemic rich area in east-central Argentina, the Sierras de Ventania mountain chain, were analyzed. Field data collection was performed ...
Resource partitioning in a snake assemblage from east-central Argentina
(Academia Brasileira de Ciencias, 2018-11)
Two dimensions of the ecological niche (diet and habitat) of a snake assemblage from an endemic rich area in east-central Argentina, the Sierras de Ventania mountain chain, were analyzed. Field data collection was performed ...
Effects of two estuarine intertidal polychaetes on infaunal assemblages and organic matter under contrasting crab bioturbation activity
(Elsevier Science, 2018-09)
Polychaetes and burrowing crabs are widely distributed in intertidal soft bottom environments, playing an important role in structuring infaunal assemblages through trophic and non-trophic interactions such as bioturbation. ...
Downstream effects of hydropower production on aquatic macroinvertebrate assemblages in two rivers in Costa Rica
(Universidad de Costa Rica, 2014)
Despite the fact that little is known about the consequences of hydropower production in tropical areas, many large dams (>15m high) are currently under construction or consideration in the tropics. We researched the effects ...
Top predator fish assemblages in Northern Patagonia, Argentina. What factors regulate their patterns of distribution and abundance?
(Wiley Blackwell Publishing, Inc, 2018-09-23)
According to assemblage theory, three factors regulate fish biogeography: restriction of dispersion, environmental restrictions and biotic interactions. The first two factors act on a regional scale and delimit the area ...