Search results
4 Results
Sorted by relevance
Report - Alternatives to fenthion for quelea bird control
… after sprays can cause fenthion to leach out of the soil and still be detectable five months later (Cheke et al. … residues in the air for 64 hours and for 46 days in soil was reported by van der Walt (2000). Recently there was … added to bait grain or water Immobilises birds. Minimal pollution. Risk to non-target birds. Requires birds to be …
The valuation of ecosystem services: Are the challenges too many to ensure the maintenance of ecosystem integrity?
… Regulating services, such as pest control, flood control, soil fertilizer, and water filtration are considerably more … ecosystem services, such as the production of oxygen, and soil formation. See further the Millennium Ecosystem … such as environmental quality, including air pollution, water pollution, and noise, or environmental …
The development of international environmental law at the Multilateral Environmental Agreements Conference of the Parties and its validity
… was deleted.21 In the next MEA on the Prevention of Marine Pollution by Dumping of Wastes and Other Matter (London … XIV(4)(f). 41 Convention on Long-Range Transboundary Air Pollution. Available at: … organizations concerned with the prevention of marine pollution; (e) develop or adopt, in consultation with …
Evaluating effectiveness : A framework for assessing management effectiveness of protected areas
… services/ functions Catchment management and water supply Soil conservation Climate and disaster mitigation Clean air/pollution mitigation Biodiversity Ecosystem level Species … with previous years Evidence of graffiti, trampling and soil compaction Photo-monitoring and analysis …