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In trials on native semiarid grassland at Cheyenne, Wyoming in 1986-87, the response of Agropyron smithii [Elymus smithii] and Bouteloua gracilis to s...

Hirta, an island in the St. Kilda group, is grazed by a population of feral Soay sheep which crashes every 3-5 years with up to 60% mortality. Fungal ...

Field surveys of mosquito larval sites on the Pacific coastal plain and foothill regions of southern Chiapas, Mexico, were carried out in the dry and ...

Animals concentrate key nutrients in their bodies. In fenced wildlife reserves where nutrient input and/or retention is low, the off-site removal of a...

Weight and nutrient losses from fresh roadside cuttings were studied in the field in the Netherlands during a 6-week period between 24 May and 6 July ...

When assessing the cause of population absence or decline, it is important to understand the relative effect of local, regional and global factors. In...

The European Union (EU) Water Framework Directive (WFD) requires that member states establish type-specific reference conditions for all waterbodies, ...

Chemical effects on organisms are typically assessed using individual-level endpoints or sometimes population growth rate (PGR), but such measurements...

Scientific understanding of acidification in aquatic ecosystems relies on effective assessment, which at present is mostly limited to chemical and som...

enThis link goes to a English sectionesThis link goes to a Spanish section The simplification of agricultural landscapes has been associated with an i...