Ecology
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- Wikipedia - Desert
- Information about aspects and features of deserts like geography, etymology, classification and fauna and flora.
- 223
- National Geographic - Tundra
- Facts, photos, and videos. And a story about what threatens this ecosystem.
- 225
- Ecosystem Management at the University of Michigan
- UM research and teaching related to ecosystems and their management, including ecosystem-based approaches to resource management.
- 226
- Aqua Survey
- US based laboratory testing, field sampling and consulting services. Provides services in effluent bioassays, dredged sediment evaluations, toxicity identification, hydrographic surveys, ecological studies and assessment.
- 227
- Ardea Consulting
- Consultants in avian and wildlife toxicology and ecology. Work has been conducted throughout the U.S. and Canada.
- 228
- Coastal Bioanalysts, Inc.
- Employs aquatic toxicology methods to assess pollution control measures and product safety. Description of services.
- 229
- Ecological Specialists Inc
- Ecological Specialists, Inc. is a group of professional ecologists that specialize in freshwater mussels, other aquatic invertebrates, and fisheries.
- 230
- Ecotoxsolutions
- Offers consultancy services in ecotoxicology, ecology, fishery science and risk assessment, support for product registration under REACH, approved training courses on test methods, test strategies and animal welfare in aquatic ecotoxicology.
- 231
- Harlan Laboratories
- Contract research services offers an extensive range of ecotoxicology and biodegradation tests required for the chemical, agrochemical and pharmaceutical industries.
- 232
- Potesta & Associates
- Potesta and associates includes civil, geotechnical, environmental, mechanical, mining, and chemical engineers, as well as biologists, toxicologists, geologists, ecologists, surveyors, CADD designers, field technicians, and support personnel.
- 233
- EnvironMen.net
- A website with 3D animations of the effect of several natural toxins on a synapse. These include muscarine, curare, botox, atropine, nicotine and black widow toxin.
- 234
- Mushroom Poisoning
- Information from Wikipedia on the deleterious effects from ingestion of toxic substances present in certain fungi.
- 235
- CESER Project: Countermeasures, Environmental and Socio-Economic Responses
- European Community investigation of measures (such as deep plowing, special fertilizers, changes in livestock feed, or land-use changes) for long-term management of accidental radioactive contamination of agricultural systems.
- 236
- Biohabitats, Inc.
- Biohabitats, Inc., providing ecological restoration design, planning, and assessment services for wetlands, streams, lakes, forests, coastal communities and other natural habitats Fostering Ecological Stewardship
- 237
- British Flora
- Offers services in ecological surveys, wetland habitat restoration, constructed wetlands, and other native ecosystem restoration efforts in the UK. Grower of guaranteed British provenance wildflowers and aquatics.
- 238
- Earth Repair and Restoration
- Ecological restoration specialists providing bush regeneration and restoration services, and noxious and environmental weed control in New South Wales, Australia.