424483
Description
Flashcards by Chantelle Lin, updated more than 1 year ago
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Created by Chantelle Lin
almost 11 years ago
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| Question | Answer |
| State of the Environment Report | 86- most comprehensive and authoritative report on state of envmt. human activities have compromised health of ecosystems |
| challenges in defining and describing ecosystem health | boundaries are arbitrary, ecosystems are dynamic, have myriad species |
| Stress-Response Envmtl Statistical System aka Pressure-State-Response aka Drivers-Pressures-State-Impact-Response | transformed field from haphazard collection of envmt info to integrated system w taxonomy of anthropogenic stress, id of key signs of ecosystem breakdown. ids pressures, drivers of pressures, indicators of ecosystem response (breakdown), and societal response-> diagnose health |
| PSR applications | integrated statistical picture of degradation of lower Great Lakes, State of Envmt reports, Human Activities and the Envmt (ecozones- 15 terrestrial, 3 (now 5) marine) |
| major sources of anthropogenic stress | release of waste residuals, physical restructuring, intro of exotic species, over-harvesting, extreme natl events |
| key signs of ecosystem degradation | loss of biotic diversity, increased dominance by non-native species, reduced primary and secondary productivity, regression to early stages of ecosystem dvlpmt, incr disease, decr soil fertility, reduced capacity to rebound after perturbations |
| forest ecosystem health | vigourous and productive trees, rapid biomass and nutrient cycling, insects and diseases at bay, normal ecological succession and stand dvlpmt, high vitality (resource focus on pests) |
| forest ecosystem health, ecosystem focus | complex canopy structure, lg gaps and uneven aged trees, lg, dead, deformed, broken and partly decayed trees, logs |
| Cdn Forest Service | moved towards ecosystem approach |
| Montreal Process for sustainable forest ecosystems | 1) conservation of biodiversity, 2) maintenance of productive capacity, 3) maintenance of health and vitality, 4) conservation and maintenance of soil and water resources 5) maintenance of forest contribution to global carbon cycles 6) maintenance and enhancement of long-term multiple socio-econ benefits, 7) legal, policy, institutional frameworks |
| Montreal Process limits | too many indicators |
| CFS Forest Health Network objectives | assess effects of stresses (climate change, invasive species), est criteria and indicators for managing forests sustainably, provide national inventory data using remote sensing |
| Canadian Forest Accord- common vision | long-term health of Canada's forest will be maintained and enhanced, for the benefit of all living things, and for the social, cultural, envmtl and economic well-being of all Canadians now and in the future |
| threats to aquatic ecosystem health | pollution, nutrient loading->algal blooms->anoxic conditions, over-harvesting, phys restructuring, non-native species |
| State of the Lakes Ecosystem Conference | refers to health vs integrity (state s̄ human interference) (GLWQA) |
| white paper on Great Lakes | interrelates critical indicators of stress, ids ecosystem health as overarching framework |
| white paper prescription | restore and enhance self-regulating mechanisms, remediate existing, prevent new perturbations from humans, protect healthy elements through sustainable practices, monitor |
| governance in great Lakes | conflict from too many authorities, GAO- lack of overarching approach. COA- Canada-Ontario Agreement- healthy, prosperous, sustainable basin |
| Northern River Basin Study | relationship btwn human activities and health of Peace, Athabasca, and Slave river basins (NWT+AB) |
| NRBS restoration strategy | id ecosystem goals, dvlp spec mgmt objectives into an ecosystem strategy, select appropriate ecosystem health indicators, monitor and assess state of indicators, take action |
| Fraser Basin Council | est Fraser River Action plan to address unregulated release of waste residuals |
| Atlantic Coastal Action Program | encourage local communities to restore vigour and health to region's ecosystems |
| Atlantic Coastal Action Program primary goals | water quality, natl habitat, atmospheric emissions, econ soc cultural aspects of region |
| Bay of Fundy/Gulf of Maine | cooperative efforts btwn Canada+US. phys change to shoreline, incr coastal dvlpmt, aquaculture, small boat traffic, change in estuary sediment pattern, contaminants in sediment and tissues, reduction in fish stocks, seabirds and marine mammals. PATHOLOGY |
| Puget Sound/Georgia Basin | lg marine mammals, human pop 7 million->eliminated/impaired habitat, overharvesting, intro nonnative, invasive species, pollution and over nutrients, local success, global failure |
| Georgia Basin Action Plan | healthy ecosystem and communities, fed-prov partnership, DFO, Env Canada, Parks Canada, BC Ministry of Water, Land and Air Protection, BC Ministry of Sustainable Resource Mgmt |
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