نتایج جستجو برای: modification of landscape directly affects ecological processes

تعداد نتایج: 21225525  

Journal: :Journal of epidemiology and community health 2000
T A Blakely A J Woodward

Multi-level research that attempts to describe ecological effects in themselves (for example, the effect on individual health from living in deprived communities), while also including individual level effects (for example, the effect of personal socioeconomic disadvantage), is now prominent in research on the socioeconomic determinants of health and disease. Such research often involves the ap...

Journal: :international journal of environmental research 0
s. rasouli graduate faculty of environment, university of tehran, p.o. box 14155-6135, tehran, iran m. makhdoum farkhondeh faculty of natural resources, university of tehran, p.o. box 4111, karaj , iran h.r. jafari graduate faculty of environment, university of tehran, p.o. box 14155-6135, tehran, iran r. suffling faculty of environment, university of waterloo, 200 university avenue west, waterloo, on n2l 3g1, canada b. kiabi faculty of biological science, shahid beheshti university, p.o. box 1983963113, tehran, iran a.r. yavari graduate faculty of environment, university of tehran, p.o. box 14155-6135, tehran, iran

identification of rapid degradation of ecological resources requires effective environmental monitoring including ecological integrity assessment .our first aim is to analyze ecological integrity in a landscape context while developing a method to assess integrity in spite of a dearth of historical data. we used a spatial-temporal reference framework for land cover maps for assessing ecological...

Journal: :Journal of STEPS for humanities and social sciences 2022

The research deals with the concepts of ecological and healthy buildings their interaction environment, impact architecture on human behavior health, leading to environmental health. Where health is closely related sciences public Environmental includes assessment control factors that affect seeks prevent diseases create an environment supports because between individuals surroundings way in wh...

Journal: :journal of rangeland science 2014
reza kavandi habib gholamali heshmati hamid siroosi

interrupting the processes which control ecosystem resources has dramatic impacts on the rangeland conditions. to protect ecosystems and landscape, it needs to understand the ecosystem processes which regulate the ecosystem resources. as main components of ecosystems, patches and inter-patches play important roles in energy and materials cascade. ecologically, functional parameters such as stab...

Journal: :Land 2021

Landscape connectivity is important for all organisms as it directly affects population dynamics. Yet, rapid urbanization has caused serious landscape fragmentation, which the primary contributor of species extinctions worldwide. Previous studies have mostly used spatial snap-shots to evaluate impact urban expansion on connectivity. However, interactions among habitats over time in dynamic land...

2016
Richard A. Watson Marc Ebner

Conventional approaches to modelling ecological dynamics often do not include evolutionary changes in the genetic makeup of component species and, conversely, conventional approaches to modelling evolutionary changes in the genetic makeup of a population often do not include ecological dynamics. But recently there has been considerable interest in understanding the interaction of evolutionary a...

2013
Samuel A. Cushman Jeremy Littell Kevin McGarigal

In the previous chapter we reviewed the challenges posed by spatial complexity and temporal disequilibrium to efforts to understand and predict the structure and dynamics of ecological systems. The central theme was that spatial variability in the environment and population processes fundamentally alters the interactions between species and their environments, largely invalidating the predictio...

2008
C. Gaucherel

The landscapes currently studied in ecology are either " discontinuous " (category-based or patch-based), as in the case of mosaics of agricultural units, or of more " continuous " type (raster lattices), as used for representing elevation or other ecological gradients. The main landscape models either involve explicit processes or are neutral, recreating spatial patterns in the absence of stud...

Journal: :Ecology 2008
Robert M Pringle

Ecologists increasingly recognize the ability of certain species to influence ecological processes by engineering the physical environment, but efforts to develop a predictive understanding of this phenomenon are in their early stages. While many believe that the landscape-scale effects of ecosystem engineers will be to increase habitat diversity and therefore the abundance and richness of othe...

2008
Jianguo Wu

Urban sustainability is one of the most pressing and challenging tasks facing humanity today because cities are the primary sources of major environmental problems, the centers of economic and social developments, and home to more than half of the world population. While the ecological, economic, and social dimensions of sustainability are equally important in principle, the ecology of cities i...

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