![Community assembly, coexistence and the environmental filtering](http://s1.studyres.com/store/data/014088962_1-e22447c84597141f2fa03f5e65214900-300x300.png)
Community assembly, coexistence and the environmental filtering
... Despite the widespread use of the term, the environmental filtering metaphor is still used in a form today that is largely unchanged from its original meaning. As with any metaphor, there are circumstances where the environmental filtering concept is potentially useful, and other circumstances where ...
... Despite the widespread use of the term, the environmental filtering metaphor is still used in a form today that is largely unchanged from its original meaning. As with any metaphor, there are circumstances where the environmental filtering concept is potentially useful, and other circumstances where ...
Habitat Selection by Two Competing Species in a Two
... are the lines separating regions where qualitatively different habitat preferences are observed (Rosenzweig 1979, 1981, 1991). In the literature, the shape of isolegs is often assumed to have some a priori functional form (linear, piecewise linear, or nonlinear) that is then fitted to existing data ...
... are the lines separating regions where qualitatively different habitat preferences are observed (Rosenzweig 1979, 1981, 1991). In the literature, the shape of isolegs is often assumed to have some a priori functional form (linear, piecewise linear, or nonlinear) that is then fitted to existing data ...
Linking ecosystem and parasite ecology Michel Loreau,
... crop field, a pond, or the Earth’s biosphere’ (Odum 1964). These initial views are still prevailing among current ecosystem ecologists. Thus, for Chapin et al. (2002), ‘ecosystem ecology addresses the interactions between organisms and their environment as an integrated system. [ . . . ] The flow of ...
... crop field, a pond, or the Earth’s biosphere’ (Odum 1964). These initial views are still prevailing among current ecosystem ecologists. Thus, for Chapin et al. (2002), ‘ecosystem ecology addresses the interactions between organisms and their environment as an integrated system. [ . . . ] The flow of ...
Local Ecological Communities
... membership. But persistence on this scale may not depend on internal regulation (though the issues remain both technical and fraught: see Turchin 1999). The alternative to internal regulation is stabilization through migration: communities are typically demographically open, and thus a local populat ...
... membership. But persistence on this scale may not depend on internal regulation (though the issues remain both technical and fraught: see Turchin 1999). The alternative to internal regulation is stabilization through migration: communities are typically demographically open, and thus a local populat ...
Sci 8
... Essential Questions: How do matter and energy link organisms to each other and their environments? Why is sunlight essential to life on Earth? Essential Question: How do humans have an impact on the diversity and stability of ecosystems? Enduring Understanding: Organisms and their environments are i ...
... Essential Questions: How do matter and energy link organisms to each other and their environments? Why is sunlight essential to life on Earth? Essential Question: How do humans have an impact on the diversity and stability of ecosystems? Enduring Understanding: Organisms and their environments are i ...
Heathlands confronting global change: drivers of biodiversity loss
... shrubs that develop over nutrient-poor soils. Interest in the preservation of these habitats in Europe has increased over the last decades, but over this time there has been a general decline in habitat quality, affecting community structure, ecosystem functions and biodiversity. Negative drivers th ...
... shrubs that develop over nutrient-poor soils. Interest in the preservation of these habitats in Europe has increased over the last decades, but over this time there has been a general decline in habitat quality, affecting community structure, ecosystem functions and biodiversity. Negative drivers th ...
Thermodynamic stability of ecosystems ARTICLE IN PRESS K. Michaelian
... at all levels of the hierarchy of living systems. A more encompassing framework might be grounded in non-equilibrium thermodynamic theory for a number of reasons: (1)Thermodynamic laws are the most universal of all laws and they work on all scales in similar ways, allowing for a unified hierarchical ...
... at all levels of the hierarchy of living systems. A more encompassing framework might be grounded in non-equilibrium thermodynamic theory for a number of reasons: (1)Thermodynamic laws are the most universal of all laws and they work on all scales in similar ways, allowing for a unified hierarchical ...
Potential value of indicator species for conservation
... The use of indicator species is reviewed within a context of the need for broader understanding of biological systems and the effects of management on biodiversity. Current theory and practice is used to evaluate approaches to the knowledge gaps that exist. It is concluded that the understanding nee ...
... The use of indicator species is reviewed within a context of the need for broader understanding of biological systems and the effects of management on biodiversity. Current theory and practice is used to evaluate approaches to the knowledge gaps that exist. It is concluded that the understanding nee ...
Evaluating least-cost model predictions with empirical
... Biology, Feb2007, Vol. 21 Issue 1, p213-223, 11p, 3 charts, 6 graphs, 1bw Abstract (English): It is important for conservation biologists to understand how well species persist in human-dominated ecosystems because protected areas constitute a small fraction of the Earth's surface and because anthro ...
... Biology, Feb2007, Vol. 21 Issue 1, p213-223, 11p, 3 charts, 6 graphs, 1bw Abstract (English): It is important for conservation biologists to understand how well species persist in human-dominated ecosystems because protected areas constitute a small fraction of the Earth's surface and because anthro ...
Biodiversity and teaching - Bertrand Pajot
... The role of the teacher: professor, organizer, animator ? The “leader of the project”, present from its beginning until ...
... The role of the teacher: professor, organizer, animator ? The “leader of the project”, present from its beginning until ...
Title Variation in Low Intertidal Communities: Submerged vs
... amphipods and isopods was found to vary at different tidal levels and different times during the tidal cycle (Ingólfsson and Agnarsson, 2003). A study carried out in the rocky intertidal zone in Ireland found a significant trend of decreasing biodiversity with increasing shore height during periods ...
... amphipods and isopods was found to vary at different tidal levels and different times during the tidal cycle (Ingólfsson and Agnarsson, 2003). A study carried out in the rocky intertidal zone in Ireland found a significant trend of decreasing biodiversity with increasing shore height during periods ...
Adaptive Radiation, Ecological Opportunity, and Evolutionary
... abstract: Adaptive radiation refers to diversification from an ancestral species that produces descendants adapted to use a great variety of distinct ecological niches. In this review, I examine two aspects of adaptive radiation: first, that it results from ecological opportunity and, second, that i ...
... abstract: Adaptive radiation refers to diversification from an ancestral species that produces descendants adapted to use a great variety of distinct ecological niches. In this review, I examine two aspects of adaptive radiation: first, that it results from ecological opportunity and, second, that i ...
GG 101 Objectives Chapter Links
... 2. Describe how volcanism relates to the origin of the atmosphere and affects Earth's climate 3. Contrast the beneficial and catastrophic effects of volcanism on humans. 4. Indicate the factors that control the explosive violence of volcanic eruptions and influence the shape of volcanic mountains. 5 ...
... 2. Describe how volcanism relates to the origin of the atmosphere and affects Earth's climate 3. Contrast the beneficial and catastrophic effects of volcanism on humans. 4. Indicate the factors that control the explosive violence of volcanic eruptions and influence the shape of volcanic mountains. 5 ...
video slide - Course
... – Perceived that changes in Earth’s surface can result from slow continuous actions still operating today – Exerted a strong influence on Darwin’s thinking ...
... – Perceived that changes in Earth’s surface can result from slow continuous actions still operating today – Exerted a strong influence on Darwin’s thinking ...
climate change and connectivity: are corridors the solution?
... The study of the interactions between and within discrete habitat patches embedded in a different matrix allows scientists to better understand the impact of connectivity on species distribution and ecosystem health. Like islands, habitat patches are surrounded by a different matrix. Island biogeogr ...
... The study of the interactions between and within discrete habitat patches embedded in a different matrix allows scientists to better understand the impact of connectivity on species distribution and ecosystem health. Like islands, habitat patches are surrounded by a different matrix. Island biogeogr ...
D 56. Shachak et al. 2008. Woody sp.as landscape modulators
... between species and materials (Jones and Lawton 1995). The effect of landscape modulation on biodiversity demands landscape methodology that focuses on understanding the reciprocal interactions between spatial heterogeneity and ecological processes. Dividing modulation into two pathways makes it pos ...
... between species and materials (Jones and Lawton 1995). The effect of landscape modulation on biodiversity demands landscape methodology that focuses on understanding the reciprocal interactions between spatial heterogeneity and ecological processes. Dividing modulation into two pathways makes it pos ...
Community Ecology, BIOL 7083 – Fall 2003
... Whittaker, R. H. 1972. Evolution and measurement of species diversity. Taxon 21:213-251. Wiens, J. A. 1989. Spatial scaling in ecology. Functional Ecology 3:385-397. Wright, Justin P., Alexander S. Flecker & Clive G. Jones. 2003. Local vs. landscape controls on plant species richness in beaver meado ...
... Whittaker, R. H. 1972. Evolution and measurement of species diversity. Taxon 21:213-251. Wiens, J. A. 1989. Spatial scaling in ecology. Functional Ecology 3:385-397. Wright, Justin P., Alexander S. Flecker & Clive G. Jones. 2003. Local vs. landscape controls on plant species richness in beaver meado ...
1 Ecosystem Services and the Economics of
... a category that captures many of the non-use or passive use values of ecological resources. Cultural services include the spiritual, religious, aesthetic, educational, scientific, inspirational and recreational well-being that people derive from the ‘natural’ world. They include the sense of place t ...
... a category that captures many of the non-use or passive use values of ecological resources. Cultural services include the spiritual, religious, aesthetic, educational, scientific, inspirational and recreational well-being that people derive from the ‘natural’ world. They include the sense of place t ...
Succession Power Point Notes - ESC-2
... Years after the lava from an erupting volcano destroyed an area, grasses started to grow in that area. The grasses were gradually replaced by shrubs, evergreen trees, and finally, by a forest that remained for several hundred years. The entire process is an example of - ...
... Years after the lava from an erupting volcano destroyed an area, grasses started to grow in that area. The grasses were gradually replaced by shrubs, evergreen trees, and finally, by a forest that remained for several hundred years. The entire process is an example of - ...
Paleo to present day water studies
... Diatoms are a type of algae (class Bacillariophytae). Diatoms are characterized by a cell wall (frustule) made of silica (glass) which protects diatoms from predation, parasites and disease. Each frustule is made of two halves, known as valves, which fit together like a box with one side larger than ...
... Diatoms are a type of algae (class Bacillariophytae). Diatoms are characterized by a cell wall (frustule) made of silica (glass) which protects diatoms from predation, parasites and disease. Each frustule is made of two halves, known as valves, which fit together like a box with one side larger than ...
ppt
... 3. The Value of Biodiversity a. Ecological value: Diverse communities are more productive and more resistant to change than less diverse communities. They provide ‘ecosystem services’ like cleaning water, cleaning air, fertilizing soils, and producing food more effectively than low diversity system ...
... 3. The Value of Biodiversity a. Ecological value: Diverse communities are more productive and more resistant to change than less diverse communities. They provide ‘ecosystem services’ like cleaning water, cleaning air, fertilizing soils, and producing food more effectively than low diversity system ...
the use of coastal agricultural fields in virginia as foraging habitat by
... aided in the detection of shorebirds. For large or widely dispersed flocks, I made replicate counts of shorebirds and recorded the mean of the original and replicate counts. Most of the shorebirds observed on croplands were actively foraging, with only a small proportion roosting. Observations made ...
... aided in the detection of shorebirds. For large or widely dispersed flocks, I made replicate counts of shorebirds and recorded the mean of the original and replicate counts. Most of the shorebirds observed on croplands were actively foraging, with only a small proportion roosting. Observations made ...
Alfred Wegener and continental drift
... 1. Die Entstehung der Kontinente, "Geologische Rundschau", 3, 1912, pp. 276-292. Die Entstehung der Kontinente, "Petermann’s Mitteilungen", 58, 1912 pp. 185-195; 253-256; 305-309 (English translation in Journal of Geodynamics, 32, 2001, pp. 29-63). Die Entstehung der Kontinente und Ozeane, Braunschw ...
... 1. Die Entstehung der Kontinente, "Geologische Rundschau", 3, 1912, pp. 276-292. Die Entstehung der Kontinente, "Petermann’s Mitteilungen", 58, 1912 pp. 185-195; 253-256; 305-309 (English translation in Journal of Geodynamics, 32, 2001, pp. 29-63). Die Entstehung der Kontinente und Ozeane, Braunschw ...
Hybridization due to changing species distributions: adding
... biogeographic history. It is also necessary to distinguish between underlying processes and resulting consequences. Knowledge of the consequences of hybridization is more developed in genetics than in ecology. We suggest that hybridization adds problems (loss of biodiversity, ecosystem degradation) ...
... biogeographic history. It is also necessary to distinguish between underlying processes and resulting consequences. Knowledge of the consequences of hybridization is more developed in genetics than in ecology. We suggest that hybridization adds problems (loss of biodiversity, ecosystem degradation) ...
Biogeography
![](https://commons.wikimedia.org/wiki/Special:FilePath/Wallace_biogeography.jpg?width=300)
Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time. Organisms and biological communities often vary in a regular fashion along geographic gradients of latitude, elevation, isolation and habitat area. Phytogeography is the branch of biogeography that studies the distribution of plants. Zoogeography is the branch that studies distribution of animals.Knowledge of spatial variation in the numbers and types of organisms is as vital to us today as it was to our early human ancestors, as we adapt to heterogeneous but geographically predictable environments. Biogeography is an integrative field of inquiry that unites concepts and information from ecology, evolutionary biology, geology, and physical geography.Modern biogeographic research combines information and ideas from many fields, from the physiological and ecological constraints on organismal dispersal to geological and climatological phenomena operating at global spatial scales and evolutionary time frames.The short-term interactions within a habitat and species of organisms describe the ecological application of biogeography. Historical biogeography describes the long-term, evolutionary periods of time for broader classifications of organisms. Early scientists, beginning with Carl Linnaeus, contributed theories to the contributions of the development of biogeography as a science. Beginning in the mid-18th century, Europeans explored the world and discovered the biodiversity of life. Linnaeus initiated the ways to classify organisms through his exploration of undiscovered territories.The scientific theory of biogeography grows out of the work of Alexander von Humboldt (1769–1859), Hewett Cottrell Watson (1804–1881), Alphonse de Candolle (1806–1893), Alfred Russel Wallace (1823–1913), Philip Lutley Sclater (1829–1913) and other biologists and explorers.