El presente estudio se realizó en la zona intermareal el Refugio de Vida Silvestre- Río Escalante Chacocente, municipio Santa Teresa. Su objetivo principal es determinación asociación las especies Arbacia lixula y Ophiocomina nigra función variables físico-químicas estratos rocosos. Se cuantificó diversidad nigra, mediante índices biológica, equitabilidad, riqueza específica su distribución eco...

Los humedales son ecosistemas que han sido afectados por diversos procesos humanos. En el presente estudio se determinó la diversidad y variación espacio-temporal de ornitofauna del humedal Santa Rosa (Lima, Perú), cual ubica en desierto costero alberga una gran riqueza taxones, aunque presenta hoy un alto impacto actividades humanas. Se hicieron censos mensuales entre marzo 2018 febrero 2019 u...

Elak elak beach has a sea and coast with substrate texture that is very suitable as habitat for Mollusca including bivalves. Bivalves have many roles the environment, especially in providing food various other species chain can be used to determine water quality. This study aims community structure distribution pattern of bivalves Beach see student responses booklets. The method this research l...

Este trabajo presenta una caracterización de los grupos tróficos las comunidades invertebrados que habitan en tres quebradas y caños llanuras aluviales la Orinoquía colombiana. Los muestreos se realizaron arroyos durante meses julio 2016, octubre 2016 enero 2017). En tramos 50 m midieron variables fisicoquímicas [temperatura (ºC), oxígeno disuelto (mg l-1 O2), pH, conductividad (μS cm-1), amoni...

Aphid flight activities in seed potato fields have been studied by the yellow water traps. It is a good method for monitoring aphids as vectors of viruses, but this study also showed it is a suitable method for insect-diversity research. During the four-year studies, over 11.500 specimens were collected and a total of 107 different taxa of aphids were identified. The most abundant species were ...

Among the natural enemies of insect pests in rice fields, parasitoids are especially notable. To better understand the space-time dynamics of these insects, the objectives of this study were to describe and compare groups of parasitoids in organic irrigated rice fields using two management approaches for levee vegetation, and to relate them to the phenological stages of rice cultivation (the se...

The main purpose of this paper was to, for the first time, analyse spatiotemporal features background seismicity Northern Algeria and its vicinity, as identified by different declustering methods (specifically: Gardner Knopoff, Gruenthal, Uhrhammer, Reasenberg, Nearest Neighbour, Stochastic Declustering methods). Each method identifies a declustered catalogue, namely subset earthquake catalogue...

(Fruit production and spatial distribution of animal-dispersed angiosperms in a Mixed Ombrophilous Forest in State of Rio Grande do Sul, Brazil). We investigated, during 14 months, patterns of fruit production of animal dispersed angiosperms in a patch of Mixed Ombrophilous Forest (MOF) in the National Park of Aparados da Serra, State of Rio Grande do Sul, south Brazil. For a total of 570 indiv...

South Africa has numerous thermal springs that represent topographically driven meteoric water migrating along major fracture zones. The temperature (40-70°C) and pH (8-9) of the thermal springs in the Limpopo Province are very similar to those of the low salinity fracture water encountered in the South African mines at depths ranging from 1.0 to 3.1 km. The major cation and anion composition o...