, CA 95064, USA Summary 1 Competition, trophic interactions and abiotic disturbances play important with stochastic analyses, to examine how a major abiotic disturbance, flooding, influences the fitness be placed in a life-history context. 8 Within disturbance-driven systems, the direct ...

by population density Usually abiotic events e.g. Killing frost kills the same proportion of the population and other abiotic factors vary so randomly that no population experiences favorable growth conditions involved Nonequilibrium Theories of Population Regulation ...

... Pagination or Media Count : 12. Abstract : Revegetation success on disturbed sites is closely aligned to abiotic characteristics. ...

The role of disturbance in community ecology has been studied extensively and is thought to free resources and reset successional sequences at the local scale and create heterogeneity at the regional scale. Most studies have investigated effects on either the disturbed patch or on the entire community, but have generally ignored any effect of or on the ...

of abiotic and biotic factors (climate and species interactions). The persistent regional presence of a species requires the maintenance of viable populations in the area. Biotic and abiotic effects on species, there is little general theory that considers how climate change will jointly affect the abiotic and ...

Wetland habitats are besieged by biotic and abiotic disturbances such as invasive species, hurricanes, habitat fragmentation, and salinization. Predicting how these factors will alter local population dynamics and community structure is a monumental challenge. By examining ecologically similar congeners, such as Iris hexagona and I. ...

Revegetation success on disturbed sites is closely aligned to abiotic characteristics. Site-specific, microenvironmental conditions such as temperature and precipitation, effect revegetative success. Slope angle and aspect control radiation loads and thus...

from biotic and abiotic factors, some of which are associated with climate change (e.g., drought, fire, insect attacks). " Temporally processed daily MODIS ...

... of biological traits associated positively (+) or negatively (�) with human ... abiotic environment such as light and moisture availability (Spies, 1998). ... ...

Sep 1, 2011 ... The first indicator section contains analyses of abiotic, biotic, and anthropogenic disturbances including drought, hurricanes, tornadoes, fire, ...

The objective of the proposed study is to assess the responsiveness of indicators of ecosystem function to three intensities of watershed disturbance in four regions. An integrated assessment of abiotic and biotic condition of streams will be conducted to assess streams affected...

Jun 16, 2011 ... We used classification tree analysis, a non-parametric method of statistical inquiry, to identify the variables that were most useful in ...

POPULATION ECOLOGY - ORIGINAL PAPER Spatial variation in abiotic and biotic factors in a floodplain understanding of how multiple abiotic and biotic factors affect the variation in metamorphic traits under natural conditions. The aim of our study was to quantify the effects of abiotic and biotic factors

Data from long-term ecological studies further understanding of ecosystem dynamics and can guide evidence-based management. In a quasi-natural experiment we examined long-term monitoring data on different components of the Serengeti-Mara Ecosystem to trace the effects of disturbances and thus to elucidate cause-and-effect connections between them. The long-term data ...

... least disturbed by humans, and most disturbed by fire. This combination makes it an ideal system to explore the environmental controls over species composition, the relative importance of abiotic ... ...

The invasive ant species Wasmannia auropunctata displays both ecologically dominant and non-dominant populations within its native range. Three factors could theoretically explain the ecological dominance of some native populations of W. auropunctata: (i) its clonal reproductive system, through demographic and/or adaptive advantages; (ii) its unicolonial ...

Disturbance in a river-floodplain system is defined as an unpredictable event that disrupts structure or function at the ecosystem, community, or population level. Disturbance can result in species replacements or losses, or shifts of ecosystems from one persistent condition to another. A disturbance can be a ...

The Clean Water Act of 1991 emphasizes the general health of aquatic communities as a reflection of the relative condition of the aquatic environment. Many methods have been developed to relate biological responses to disturbances of natural aquatic systems, and thus measure quality of water resources. Seven different aspects of the aquatic environment in 15 embayments of ...

Ectomycorrhiza (ECM) communities can be described on a species level or on a larger scale at an ecosystem level. Here we show that the species level approach of successional processes in ECM communities is not appropriate for understanding the diversity patterns of ECM communities at contaminated sites. An ecosystem based approach improves predictability since different biotic and ...

Ectomycorrhiza (ECM) communities can be described on a species level or on a larger scale at an ecosystem level. Here we show that the species level approach of successional processes in ECM communities is not appropriate for understanding the diversity patterns of ECM communities at contaminated sites. An ecosystem based approach improves predictability since different biotic and ...

We examined the reach-scale distributions of three fish species to determine which biotic and abiotic factors ... ...

... to weather data on temperature, precipitation and monthly heat/precipitation ratio (H/P) or drought index. Population dynamics of a nonmigratory acridid of the ... ...

Shrimp populations were monitored at approximately 3 week intervals to determine the variability in numbers and sizes of each species in response to disturbance ... ...

The boreal forests of western North America are experiencing rapid directional changes in climate that are predicted to continue into the next century. The responses of boreal forest plant communities to climate change may be constrained over the short term by factors that create resistance to change, such as slow population turnover rates and strong plant-environment ...

We present a continental scale analysis that explores the processes controlling woody community structure in tropical savannas of Africa. We analyze how biotic and abiotic factors interact to promote and modify tree cover, examine alternative ecological hypotheses with semi-empirical modeling and Bayesian statistics and quantify disturbance effects using ...

... to those previously estimated for Addo and Amboseli elephants (Whitehouse ... with intense poaching). When populations are disturbed in this manner, it ... ...