Extinction order and altered community structure
... generalize the functional effects of each factor independently, human-modified landscapes provide settings that allow examination of how all of these factors and functional processes are actually changing. The majority of richness–function studies, often incorrectly referred to as diversity–function ...
... generalize the functional effects of each factor independently, human-modified landscapes provide settings that allow examination of how all of these factors and functional processes are actually changing. The majority of richness–function studies, often incorrectly referred to as diversity–function ...
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 ...
Conditions when hybridization might predispose
... between purging and the evolution of coupling to loci that are under divergent ecological selection as two alternative evolutionary paths to increased mean fitness. Exploring the conditions under which coupling or purging prevails requires modelling, but I expect that weak genetic population structu ...
... between purging and the evolution of coupling to loci that are under divergent ecological selection as two alternative evolutionary paths to increased mean fitness. Exploring the conditions under which coupling or purging prevails requires modelling, but I expect that weak genetic population structu ...
Examining food webs and trophic dynamics across a stream
... restoring these heavily degraded systems, there is little examination of restoration on a systemlevel scale. By examining food webs and trophic dynamics within a stream restoration intensity gradient, I was able to determine the effects of restoration on the stream systems as a whole. The natural sy ...
... restoring these heavily degraded systems, there is little examination of restoration on a systemlevel scale. By examining food webs and trophic dynamics within a stream restoration intensity gradient, I was able to determine the effects of restoration on the stream systems as a whole. The natural sy ...
POPULATION VIABILITY ANALYSIS Mark S. Boyce Journal Article
... Random events can be extremely important in extinction, especially for small populations, the target of most PVA (121). In a sense, the distinction between deterministic and stochastic processes in ecology is artificial because all ecological processes are stochastic. Mapard Smith (97) points out th ...
... Random events can be extremely important in extinction, especially for small populations, the target of most PVA (121). In a sense, the distinction between deterministic and stochastic processes in ecology is artificial because all ecological processes are stochastic. Mapard Smith (97) points out th ...
Estuarine Macrophytes at Bakkhali, Cox`s Bazar, Bangladesh with
... and slow water current. The higher diversity of macrophytes on west side of the estuary revealed that generally the protected area with sandy muddy substrates in the coastal area is suitable for the production and regeneration of macrophytes. The fringe type of macrophytes plays an important ecologi ...
... and slow water current. The higher diversity of macrophytes on west side of the estuary revealed that generally the protected area with sandy muddy substrates in the coastal area is suitable for the production and regeneration of macrophytes. The fringe type of macrophytes plays an important ecologi ...
Effects of intra- and interspecific interactions on species responses
... 1. The extent of directional environmental change expected in the next century underscores the need to understand density-dependent population regulation. 2. Direct density dependence generated by intraspecific competition and /or predator– prey interactions should buffer environmentally produced ch ...
... 1. The extent of directional environmental change expected in the next century underscores the need to understand density-dependent population regulation. 2. Direct density dependence generated by intraspecific competition and /or predator– prey interactions should buffer environmentally produced ch ...
Newsletter
... butterflies can benefit from Miscanthus fields, subsequently supporting the pollination of surrounding insect pollinated crops and wild plants. Jesko Zimmermann measured significant soil carbon sequestration rates under Miscanthus, showing additional greenhouse gas savings and ben ...
... butterflies can benefit from Miscanthus fields, subsequently supporting the pollination of surrounding insect pollinated crops and wild plants. Jesko Zimmermann measured significant soil carbon sequestration rates under Miscanthus, showing additional greenhouse gas savings and ben ...
Mutualism, Facilitation, and the Structure of Ecological Communities
... of natural communities. Terrestrial, aquatic, and marine vascover to shade the soil and reduce evaporation rates. In parcular plants (Figure 1b and 1c), as well as reef-forming corals ticular, Bertness and Hacker (1994) showed that the canopy (Figure 1a) and giant kelps, all help to reduce flow (win ...
... of natural communities. Terrestrial, aquatic, and marine vascover to shade the soil and reduce evaporation rates. In parcular plants (Figure 1b and 1c), as well as reef-forming corals ticular, Bertness and Hacker (1994) showed that the canopy (Figure 1a) and giant kelps, all help to reduce flow (win ...
ap biology summer assignment 2009-2010
... 18. Explain how dominant and keystone species exert strong control on community structure. Give several examples of each. 19. Describe and distinguish between the bottom-up and top-down models of community organization. Also, describe some models that are intermediate between those two extremes. 20. ...
... 18. Explain how dominant and keystone species exert strong control on community structure. Give several examples of each. 19. Describe and distinguish between the bottom-up and top-down models of community organization. Also, describe some models that are intermediate between those two extremes. 20. ...
Name: _____ Period: ______ Date: ________ EHS Pond
... Acidic and basic are two ways that we describe chemical compounds. Acidity is measured using a pH scale. A pH scale runs from zero (the most acidic) to 14 (the most basic or alkaline). A substance that is neither basic or acidic is called "neutral", and this has a pH of 7. Sources of Acid Rain Acid ...
... Acidic and basic are two ways that we describe chemical compounds. Acidity is measured using a pH scale. A pH scale runs from zero (the most acidic) to 14 (the most basic or alkaline). A substance that is neither basic or acidic is called "neutral", and this has a pH of 7. Sources of Acid Rain Acid ...
Red swamp crayfish Scientific name: Procambarus clarkii
... abundance of algae from direct consumption and by destructing marcophytes algae grow on (Lodge et al. 2000). Red swamp crayfish can also be a vector of disease that attacks native crayfish (Moore 2006), although Alaska does not have native crayfish. Impacts on native fishes and amphibians are ...
... abundance of algae from direct consumption and by destructing marcophytes algae grow on (Lodge et al. 2000). Red swamp crayfish can also be a vector of disease that attacks native crayfish (Moore 2006), although Alaska does not have native crayfish. Impacts on native fishes and amphibians are ...
Ecological Risk Assessment
... 2 Fishing occurs in 24% of the 770,000 km2 NPF managed area for about 3 months each year => Population size likely to be affected before major changes in other sub-components => this species of catfish is likely to be most affected by fishing as it's been identified as the bycatch species most at ri ...
... 2 Fishing occurs in 24% of the 770,000 km2 NPF managed area for about 3 months each year => Population size likely to be affected before major changes in other sub-components => this species of catfish is likely to be most affected by fishing as it's been identified as the bycatch species most at ri ...
Heterogeneity
... • This variation makes studies complicated – some processes depend on patchiness, but not all. • General, organismal responses are a good measure by which to assess relevant scale. (neighbourhood scale) • Neighbourhood for vagile species is obviously their territory or resource area • For sessile sp ...
... • This variation makes studies complicated – some processes depend on patchiness, but not all. • General, organismal responses are a good measure by which to assess relevant scale. (neighbourhood scale) • Neighbourhood for vagile species is obviously their territory or resource area • For sessile sp ...
Conditional outcomes in mutualistic interactions
... about 56% better in the presence of ants, whereas survival of adults was unaffected. This result is also probably related to the impact of predators. Adult membracids possess heavily sclerotized exoskeletons and are highly mobile, and are thus well-protected even in the absence of ant defenders. In ...
... about 56% better in the presence of ants, whereas survival of adults was unaffected. This result is also probably related to the impact of predators. Adult membracids possess heavily sclerotized exoskeletons and are highly mobile, and are thus well-protected even in the absence of ant defenders. In ...
Measuring progress_SC_EEA_5-OCT - Eionet Projects
... Sources: Kling/U Michigan_2005 & Friend/ISEE_2004 ...
... Sources: Kling/U Michigan_2005 & Friend/ISEE_2004 ...
FORESTRY 215 - FOREST ECOLOGY SYLLABUS SPRING 2017
... By the end of the course, students should be able to read the lay of the land in relation to how productive and diverse different locations are likely to be, what disturbances and other abiotic factors are likely to be important, what stages of succession and forest development are present, and how ...
... By the end of the course, students should be able to read the lay of the land in relation to how productive and diverse different locations are likely to be, what disturbances and other abiotic factors are likely to be important, what stages of succession and forest development are present, and how ...
The Ecological Role of the Mammalian Mesocarnivore
... just two or three packs (McLaren and Peterson 1994). Thus, it is clear that a relatively small number of large carnivores can directly or indirectly influence multiple trophic levels and precipitate community-level cascades that increase the abundance of primary producers, ultimately modifying habit ...
... just two or three packs (McLaren and Peterson 1994). Thus, it is clear that a relatively small number of large carnivores can directly or indirectly influence multiple trophic levels and precipitate community-level cascades that increase the abundance of primary producers, ultimately modifying habit ...
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.