Search results
446 Results
Sorted by relevance
Introduced Non-native Waterbirds - Status within the African-Eurasian Flyways
… have been kept as attractive ornaments to enhance water features and gardens. However, accidental escapes from … pests and can cause localised eutrophication of water bodies and a change in soil composition where large … Canada Goose (Branta canadensis) Photos from left to right © Don Delaney; Sergey Dereliev (UNEP/AEWA), …
AEWA Conservation Guidelines No. 10 - Guidelines on Avoidance of Introductions of Non-native Waterbird Species (TS No. 12)
… by grazing and trampling. There may also be an effect on water bodies from the deposition of nutrients by roosting … native species), threats to public health in parks and water areas, and threats to air safety (a number of … schemes are often more politically attractive than out-right bans of keeping certain captive animals and in effect …
Tools for measuring, modelling, and valuing ecosystem services : Guidance for Key Biodiversity Areas, natural World Heritage sites, and protected areas
… service provision area for sediment retention for drinking water quality, regulation of dry-season baseflows for drinking water provision, inland flood risk reduction for flood-prone … as an assessor likely won’t be able to choose the right approach, relevant metrics, or a relevant or credible …
Significant Trade in Wildlife: A Review of selected species in CITES Appendix II - Volume 1 Mammals
… mesophytic, broadleaf forest on high ground in a white-water drainage (Freese et al . , in Wolfheim, 1983), whereas … South of the Rio Amazonas in eastern Peru; west to the right bank of the lower Rio Huallaga, thence south along the … in primary varzea forest (periodically flooded by a white-water river) (Mittermeier and Coimbra-Filho, 1977). In many …
Document - The Ramsar Convention on Wetlands: its History and Development
… that wetlands have a far greater importance for ground water protection, regulation of the water cycle, water storage, water purification, and as an … of the USSR “believed that all countries should have the right to become Parties to the Convention, since this would …