Lecture 1 introduction-2011
... (3)The older the material, the more likely it was modified, or destroyed by geological events or biological intrusions (4)At best you are sampling just a portion of what existed ...
... (3)The older the material, the more likely it was modified, or destroyed by geological events or biological intrusions (4)At best you are sampling just a portion of what existed ...
Frog Declines
... species worldwide. As amphibians generally need aquatic and terrestrial habitats to survive, threats to either habitat can affect populations. Hence, amphibians may be more vulnerable to habitat modification than organisms that only require one habitat type. ...
... species worldwide. As amphibians generally need aquatic and terrestrial habitats to survive, threats to either habitat can affect populations. Hence, amphibians may be more vulnerable to habitat modification than organisms that only require one habitat type. ...
Bioenergy and biodiversity
... Smith, P.; Haberl, H.; Popp, Al. et al. (2013) How much land-based greenhouse gas mitigation can be achieved without compromising food security and environmental goals? ...
... Smith, P.; Haberl, H.; Popp, Al. et al. (2013) How much land-based greenhouse gas mitigation can be achieved without compromising food security and environmental goals? ...
The Evolution of Human Ecological Systems During the Period of
... However, as part of the mode of production, limiting factors and potential resources are pieces of the ecological core that deserve concentrated analysis. Potential resources (exhaustible and renewable) are those natural features deemed useful by a human group. Limiting factors are traits of the nat ...
... However, as part of the mode of production, limiting factors and potential resources are pieces of the ecological core that deserve concentrated analysis. Potential resources (exhaustible and renewable) are those natural features deemed useful by a human group. Limiting factors are traits of the nat ...
A hierarchical deductive approach for functional types in disturbed
... species pool (McIntyre et al. 1999). For instance, competitive ability can vary, depending, for instance, on site productivity (Keddy et al. 2000), and the competitive ranking of a species within a given community will depend on the composition of the local species pool. Dispersal capacity is also t ...
... species pool (McIntyre et al. 1999). For instance, competitive ability can vary, depending, for instance, on site productivity (Keddy et al. 2000), and the competitive ranking of a species within a given community will depend on the composition of the local species pool. Dispersal capacity is also t ...
In situ conservation (3) Summary.pub
... including setting aside areas of natural forest habitat as reserves, as well as the regeneration or rehabilitation of forests affected by logging or depleted through other causes, both stochastic and human-induced. Different approaches reflect the nature and special characteristics of trees and thei ...
... including setting aside areas of natural forest habitat as reserves, as well as the regeneration or rehabilitation of forests affected by logging or depleted through other causes, both stochastic and human-induced. Different approaches reflect the nature and special characteristics of trees and thei ...
Appendix B — Hydrologic indicator sites - Murray
... with an ‘ecological character description’, this was used to define the extent of the vegetation communities. For declared Ramsar wetlands with no ecological character description, the best available information on the extent of vegetation communities at the time of listing was used. For non-declare ...
... with an ‘ecological character description’, this was used to define the extent of the vegetation communities. For declared Ramsar wetlands with no ecological character description, the best available information on the extent of vegetation communities at the time of listing was used. For non-declare ...
Bird conservation in tropical ecosystems
... but many of these are important in terms of rarity and uniqueness (see Chapter 12). Birds endemic to islands often have relatively small geographical ranges, having diverged from continental ancestors through isolation. This isolation has often resulted in the evolution of flightlessness, fearlessne ...
... but many of these are important in terms of rarity and uniqueness (see Chapter 12). Birds endemic to islands often have relatively small geographical ranges, having diverged from continental ancestors through isolation. This isolation has often resulted in the evolution of flightlessness, fearlessne ...
Research frontiers in null model analysis
... little help here because they merely pass a line through the centre of a cloud of points and (typically) test for a slope of zero. But even if the slope of the regression is zero, the relationship between x and y may change near the edge vs. the centre of the distribution. For example, the plot of p ...
... little help here because they merely pass a line through the centre of a cloud of points and (typically) test for a slope of zero. But even if the slope of the regression is zero, the relationship between x and y may change near the edge vs. the centre of the distribution. For example, the plot of p ...
Common Questions, Helpful Answers
... • Develop a Biodiversity Action Plan (BAP) for your employer or a site BAP for where you work. Contact the Business and Biodiversity Project Officer at the Business Environment Partnership (BEP) (www.thebep.org.uk). • Use less chemicals in the garden and around the house, reducing the poisoning and ...
... • Develop a Biodiversity Action Plan (BAP) for your employer or a site BAP for where you work. Contact the Business and Biodiversity Project Officer at the Business Environment Partnership (BEP) (www.thebep.org.uk). • Use less chemicals in the garden and around the house, reducing the poisoning and ...
Changes in plant community composition, not diversity, during a
... Cabido 2010) and are less likely to be lost from the community compared with perennials (Suding et al. 2005). An additional key trait is the dependence of some plants, particularly C4 grasses, on mycorrhizal fungi (Wilson & Hartnett 1997), which aid in N and especially P acquisition (Smith & Read 19 ...
... Cabido 2010) and are less likely to be lost from the community compared with perennials (Suding et al. 2005). An additional key trait is the dependence of some plants, particularly C4 grasses, on mycorrhizal fungi (Wilson & Hartnett 1997), which aid in N and especially P acquisition (Smith & Read 19 ...
Fens and floodplains of the temperate zone
... such conditions, the surface water component increases and nutrient dynamics change, depending on water chemistry and sediment load. Sedimentation is normally the most important nutrient source in floodplains (Olde Venterink et al. 2006, this issue), and increased sedimentation leads to higher nutri ...
... such conditions, the surface water component increases and nutrient dynamics change, depending on water chemistry and sediment load. Sedimentation is normally the most important nutrient source in floodplains (Olde Venterink et al. 2006, this issue), and increased sedimentation leads to higher nutri ...
bottom-up regulation of plant community structure in an aridland
... ment plots. During the years of the study, rodent trapping within treatment plots removed between 0 and 0.5 rodents per plot per season, equivalent to 0–3.8 rodents/ha in comparison to external densities ranging from 4 to 24 rodents/ha. In each plot, vegetation was measured in 36 permanently located ...
... ment plots. During the years of the study, rodent trapping within treatment plots removed between 0 and 0.5 rodents per plot per season, equivalent to 0–3.8 rodents/ha in comparison to external densities ranging from 4 to 24 rodents/ha. In each plot, vegetation was measured in 36 permanently located ...
Restoring Large Prairies in the Chicago Region
... small fragments. Many efforts are underway to expand and augment such small remnants with good-quality, large restored prairies. The resulting larger prairies, if restored and managed well, may provide long-term conservation benefits by increasing gene pool sizes, allowing more grassland animals to ...
... small fragments. Many efforts are underway to expand and augment such small remnants with good-quality, large restored prairies. The resulting larger prairies, if restored and managed well, may provide long-term conservation benefits by increasing gene pool sizes, allowing more grassland animals to ...
Red in tooth and claw: how top predators shape terrestrial ecosystems
... and hares have naturally low abundances, a smaller population of lynx will be needed to enforce control of foxes. This will be achieved earlier in the process of population growth. Thus, Elmhagen et al. find that in the unproductive northeast of Finland top-down control is currently strongest: as pre ...
... and hares have naturally low abundances, a smaller population of lynx will be needed to enforce control of foxes. This will be achieved earlier in the process of population growth. Thus, Elmhagen et al. find that in the unproductive northeast of Finland top-down control is currently strongest: as pre ...
The Science of Life
... What are abiotic factors? The nonliving factors in an organism’s environment are called abiotic (ay bi AH tihk) factors. The abiotic factors for the salmon might be the temperature range of the water, the pH of the water, and the salt concentration of the water. For aplant, abiotic factors might inc ...
... What are abiotic factors? The nonliving factors in an organism’s environment are called abiotic (ay bi AH tihk) factors. The abiotic factors for the salmon might be the temperature range of the water, the pH of the water, and the salt concentration of the water. For aplant, abiotic factors might inc ...
Grassland Birds: An Overview of Threats and Recommended Management Strategies
... Three issues are critical to preservation of grassland habitats throughout North America. First, all native temperate grasslands have experienced major, sometimes profound, losses of habitat from agriculture, range management, and urban development. In addition, habitat fragmentation and degradation ...
... Three issues are critical to preservation of grassland habitats throughout North America. First, all native temperate grasslands have experienced major, sometimes profound, losses of habitat from agriculture, range management, and urban development. In addition, habitat fragmentation and degradation ...
Ecological Succession - Galena Park ISD Moodle
... factors of an ecosystem work together in equilibrium (balance). The process of ecological succession can repair damaged ecosystems to restore this equilibrium and enable life to thrive again. Succession can be ...
... factors of an ecosystem work together in equilibrium (balance). The process of ecological succession can repair damaged ecosystems to restore this equilibrium and enable life to thrive again. Succession can be ...
Ecological Succession
... factors of an ecosystem work together in equilibrium (balance). The process of ecological succession can repair damaged ecosystems to restore this equilibrium and enable life to thrive again. Succession can be ...
... factors of an ecosystem work together in equilibrium (balance). The process of ecological succession can repair damaged ecosystems to restore this equilibrium and enable life to thrive again. Succession can be ...
nature trail at villa montalvo
... interact. Whether the ecosystem is small or large, it has two parts that you should recognize: a. The biotic portion, which consists of all the living things in their web of interactions (the ecological community) b. The abiotic portion, which is composed of non-living physical factors. The most imp ...
... interact. Whether the ecosystem is small or large, it has two parts that you should recognize: a. The biotic portion, which consists of all the living things in their web of interactions (the ecological community) b. The abiotic portion, which is composed of non-living physical factors. The most imp ...
A New Kind of Ecology? Thinking of Biology
... dependence of general processes. In the interest of generality, the models are deliberately kept simple and therefore are necessarily not accurate representations of any particular ecological system. Empirical applications: Predictin g dyn amics in specific systems. A second type of CA model involve ...
... dependence of general processes. In the interest of generality, the models are deliberately kept simple and therefore are necessarily not accurate representations of any particular ecological system. Empirical applications: Predictin g dyn amics in specific systems. A second type of CA model involve ...
The effect of agricultural diversity and crop choice on
... been theoretical in application, the use of functional trait diversity comparisons could be very useful in understanding the functional differences between ecological communities. The approach has not been applied widely because of the limited availability of trait information; however, here we appl ...
... been theoretical in application, the use of functional trait diversity comparisons could be very useful in understanding the functional differences between ecological communities. The approach has not been applied widely because of the limited availability of trait information; however, here we appl ...
Restoration ecology
Restoration ecology emerged as a separate field in ecology in the 1980s. It is the scientific study supporting the practice of ecological restoration, which is the practice of renewing and restoring degraded, damaged, or destroyed ecosystems and habitats in the environment by active human intervention and action. The term ""restoration ecology"" is therefore commonly used for the academic study of the process, whereas the term ""ecological restoration"" is commonly used for the actual project or process by restoration practitioners.