نتایج جستجو برای: ecosystem indicators

تعداد نتایج: 189260  

Journal: :Environmental management 2009
Heida L Diefenderfer Kathryn L Sobocinski Ronald M Thom Christopher W May Amy B Borde Susan L Southard John Vavrinec Nichole K Sather

Planners are being called on to prioritize marine shorelines for conservation status and restoration action. This study documents an approach to determining the management strategy most likely to succeed based on current conditions at local and landscape scales. The conceptual framework based in restoration ecology pairs appropriate restoration strategies with sites based on the likelihood of p...

Journal: :International journal for parasitology 2005
David J Marcogliese

The concept of ecosystem health is derived from analogies with human health, which subsequently leads to the implication that the ecosystem has organismal properties, a 'superorganism' in the Clementsian sense. Its application and usefulness has been the subject of a contentious debate; yet, the term 'ecosystem health' has captured the public's imagination and woven its way into the current lex...

2004
Robert Cameron

Air pollution and climate change are threats to maintaining ecological health of protected areas. Protected Area managers require a meaningful way to measure impacts of these threats. Lichens provide a relevant, sensitive and measurable indicator for long-term monitoring. Hundreds of studies have linked lichen communities to air quality, and several long-term lichen monitoring programs in Europ...

Journal: :Environmental research 2000
E K Silbergeld L Grattan D Oldach J G Morris

As man continues to expand and to develop large land areas near surface waters the pollution of these waters will intensify. Historically man has used lakes and rivers for waste disposal with little regard to the effects of these wastes on the receiving waters . . . With the predicted population growth and subsequent demands on the environment, the frequency with which recreational and muncipal...

Purpose: The purpose of this paper was to validate a model for using the entrepreneurial ecosystem in e-banking. Method: This study was a cross-sectional survey in terms of method and time of data collection. The statistical population included managers and experts of the country's electronic banking system. The sample size was 384 people and sampling was done by simple random method. Structur...

2016
Heino O Fock Gerd Kraus

Environmental policies employ metaphoric objectives such as ecosystem health, resilience and sustainable provision of ecosystem services, which influence corresponding sustainability assessments by means of normative settings such as assumptions on system description, indicator selection, aggregation of information and target setting. A heuristic approach is developed for sustainability assessm...

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