Despite decades of work in environmental science and ecology, estimating human influences on ecosystems remains challenging. This is partly due to complex chains of causation among ecosystem elements, exacerbated by the difficulty of… The selective properties of fishing that influence behavioural traits have recently gained interest. Recent acoustic tracking experiments have revealed between-individual differences in the circadian behavioural traits of marine free-living… The pumpkinseed (Lepomis gibbosus) is a North American freshwater fish of the sunfish family (Centrarchidae) of order Perciformes. Biology, Animal Biology, Ecology It's free to register here to get Book file PDF The Vegetation of Egypt Pocket Guide. Environmental homogenization in coastal ecosystems impacted by human activities may be an important factor explaining the observed decline in fish species richness. We used fish community data (>200 species) from extensive surveys conducted… Echinoderm population collapses, driven by disease outbreaks and climatic events, may be important drivers of population dynamics, ecological shifts and biodiversity. The northeast Pacific recently experienced a mass mortality of sea stars…
for multi-scale community ecology. M. A. Leibold,1* M. Holyoak,2. N. Mouquet,3,4 P. Amarasekare,5. J. M. Chase,6 M. F. Hoopes,7. R. D. Holt,8 J. B. Shurin,9 R.
Biology, Animal Biology, Ecology It's free to register here to get Book file PDF The Vegetation of Egypt Pocket Guide. Environmental homogenization in coastal ecosystems impacted by human activities may be an important factor explaining the observed decline in fish species richness. We used fish community data (>200 species) from extensive surveys conducted… Echinoderm population collapses, driven by disease outbreaks and climatic events, may be important drivers of population dynamics, ecological shifts and biodiversity. The northeast Pacific recently experienced a mass mortality of sea stars… This study examined arthropod community patterns over an altitudinal ecoregional zonation that extended through three ecoregions (Yungas, Monte de Sierras y Bolsones, and Puna) and two ecotones (Yungas-Monte and Prepuna) of Northwestern… There is little debate about the potential of environmental heterogeneity to facilitate species diversity. However, attempts to show the relationship between spatial heterogeneity and diversity empirically have given mixed results. Based on our findings, we urge for caution in obtaining community-wide characteristics from the results of multiple single-species studies.
Carnivores can affect the impact that herbivores have on plants in two ways (4). They may cause changes in herbivore density through direct consumption of herbivores.
Ecology Letters 8: Foster, B. L., V. H. Smith, T. L. Dickson, and T. Hildebrand Invasibility and compositional stability in a grassland community: relationships to diversity and extrinsic factors. Vegetation response to nutrient addition can vary across space, yet studies that explicitly incorporate spatial pattern into experimental approaches are rare. To explore whether there are unique spatial scales (grains) at which grass… The impact of productivity on species diversity is often studied at small spatial scales and without taking additional environmental factors into account. Focusing on small spatial scales removes important regional scale effects, such as… The rapid global plant diversity and productivity loss has resulted in ecosystem functional degeneration in recent decades, and the relationship between plant diversity and productivity is a pressing issue around the world. Background Assemblage responses to environmental gradients are key to understand the general principles behind the assembly and functioning of communities. The spatially and temporally uneven distribution of water availability in drylands… In the past decade, significant efforts have been made to describe fish-habitat associations. However, most studies have oversimplified actual connections between fish assemblages and their habitats by using univariate correlations.
17 Feb 2006 Community ecology is the study of a set of species co- occurring at a given time and place. MacArthur suggested that the goal of community ecology (as of us: Brian Maurer, Gary Mittelbach and Mike Rosenzweig. We also poorest countries to gain free access to biomedical literature through the Internet.
Carnivores can affect the impact that herbivores have on plants in two ways (4). They may cause changes in herbivore density through direct consumption of herbivores.
The use of more than 100 song playback experiments reveals that birds give stronger responses to songs of closely related species in the Amazon than in temperate North America, suggesting that speciation is currently happening more slowly…
These scale-dependent processes are especially important when they affect key members of a community, such as ecosystem engineers that create shelter and food resources for other species.
The use of more than 100 song playback experiments reveals that birds give stronger responses to songs of closely related species in the Amazon than in temperate North America, suggesting that speciation is currently happening more slowly…