Competition between distantly related taxa
... The information on food competition between distantly related animal taxa, published between 1970 to 1989 for terrestrial ecosystems, was reviewed. Aside from the many studies reporting competition between congeneric, confamilial or conordinal species within several trophic guilds, there are a few w ...
... The information on food competition between distantly related animal taxa, published between 1970 to 1989 for terrestrial ecosystems, was reviewed. Aside from the many studies reporting competition between congeneric, confamilial or conordinal species within several trophic guilds, there are a few w ...
Behavioral Interactions Among Four Species of the Salamander
... Sutherland 1976). The determination of whether one or both of these factors are producing the structure seen in the genus Desmognathus has broad implications for community ecology. One way to test for the presence of competitioninteractions among these based and predation-based species is to perform ...
... Sutherland 1976). The determination of whether one or both of these factors are producing the structure seen in the genus Desmognathus has broad implications for community ecology. One way to test for the presence of competitioninteractions among these based and predation-based species is to perform ...
Cultural Geographies
... Indeed, as environmentalists on both sides of the former ‘Iron Curtain’ are increasingly recognizing,4 the East European countryside boasts a wealth of relatively untouched nature that supports biodiversity resources far exceeding those of West European states. But it is also home to millions of far ...
... Indeed, as environmentalists on both sides of the former ‘Iron Curtain’ are increasingly recognizing,4 the East European countryside boasts a wealth of relatively untouched nature that supports biodiversity resources far exceeding those of West European states. But it is also home to millions of far ...
51 - edl.io
... 11. Which of the following statements regarding developed countries and developing countries is true? a) Developed countries are home to twice as many people as developing countries. b) Developed countries are home to four times as many people as developing countries. c) Developed countries have mor ...
... 11. Which of the following statements regarding developed countries and developing countries is true? a) Developed countries are home to twice as many people as developing countries. b) Developed countries are home to four times as many people as developing countries. c) Developed countries have mor ...
Vector Corruption - Department of Fisheries and Wildlife
... species, wetlands support a nationwide outdoor recreation industry as well as providing flood control, ground water recharge and helping to absorb and filter pollutants that could otherwise degrade water quality of rivers, lakes and estuaries. Impacts to wetlands in California did not solely arise f ...
... species, wetlands support a nationwide outdoor recreation industry as well as providing flood control, ground water recharge and helping to absorb and filter pollutants that could otherwise degrade water quality of rivers, lakes and estuaries. Impacts to wetlands in California did not solely arise f ...
Detailed Final Report - Rufford Small Grants
... The relation between the Great Snipe and human activities is not exclusively negative. As the species needs open fertile areas for breeding, some types of agricultural activity seem to facilitate breeding condition (e.g. grazing of floodplain meadows). At the same time agricultural activity may incr ...
... The relation between the Great Snipe and human activities is not exclusively negative. As the species needs open fertile areas for breeding, some types of agricultural activity seem to facilitate breeding condition (e.g. grazing of floodplain meadows). At the same time agricultural activity may incr ...
Protect Our Turtles - Poster - Minnesota Department of Natural
... a relatively short time, can lead to population declines of even the most common species. Remnant, very old turtles may survive, but with no upland habitat to complete their life cycle, they no longer produce young. ...
... a relatively short time, can lead to population declines of even the most common species. Remnant, very old turtles may survive, but with no upland habitat to complete their life cycle, they no longer produce young. ...
Drift fences, coverboards, and other traps
... 13.2.3 What can passive traps tell you? What can they not tell you? Passive traps, especially when used in conjunction with drift fences, have proved highly effective for determining the distribution and abundance of amphibians both spatially and temporally. Many examples exist in which drift-fence ...
... 13.2.3 What can passive traps tell you? What can they not tell you? Passive traps, especially when used in conjunction with drift fences, have proved highly effective for determining the distribution and abundance of amphibians both spatially and temporally. Many examples exist in which drift-fence ...
Access to land, livestock production and ecosystem
... sustainable grazing ecosystem use. The carrying capacity is the concept that has been used attempting to define the stocking rate in which the grazing pressure is supposed to be sustainable (Dikman, 1998). The basic principle is that each ecosystem has a potential to produce a certain amount of fora ...
... sustainable grazing ecosystem use. The carrying capacity is the concept that has been used attempting to define the stocking rate in which the grazing pressure is supposed to be sustainable (Dikman, 1998). The basic principle is that each ecosystem has a potential to produce a certain amount of fora ...
46. Pulu Keeling National Park
... more of the critical CPS within a 10 year timeframe are defined as imminent threats to the ecological character of the site (labelled IMM in Table 3). . Consultation with site managers was undertaken to ensure the correct identification of current and imminent threats (see Table 1). A stressor model ...
... more of the critical CPS within a 10 year timeframe are defined as imminent threats to the ecological character of the site (labelled IMM in Table 3). . Consultation with site managers was undertaken to ensure the correct identification of current and imminent threats (see Table 1). A stressor model ...
Endophytic fungi alter relationships between diversity and
... endophytic fungi alter the relationship between diversity and ecosystem functioning? We examined two ecosystem properties: productivity and invasibility. In addition, we compiled data on the endophyte status of plant species commonly used in diversity experiments to facilitate the inclusion of funga ...
... endophytic fungi alter the relationship between diversity and ecosystem functioning? We examined two ecosystem properties: productivity and invasibility. In addition, we compiled data on the endophyte status of plant species commonly used in diversity experiments to facilitate the inclusion of funga ...
alteration of ecosystem nitrogen dynamics by exotic plants: a case
... rate, or tissue quality, would be expected to overlap with native species in their effects on resources, and thus interact with residents in a competitive manner that would likely result in similar effects on ecosystem processes. We suggest that these species can still cause ecosystem change, but th ...
... rate, or tissue quality, would be expected to overlap with native species in their effects on resources, and thus interact with residents in a competitive manner that would likely result in similar effects on ecosystem processes. We suggest that these species can still cause ecosystem change, but th ...
Body-mass constraints on foraging behaviour determine population
... of feeding at low resource density is evocative of a variety of well-documented ecological mechanisms including prey switching and refuge seeking (Abrams 1987; Crawley 1992). Additionally, the sigmoid shape of functional responses with h > 1 yields a density-dependent predation probability at low re ...
... of feeding at low resource density is evocative of a variety of well-documented ecological mechanisms including prey switching and refuge seeking (Abrams 1987; Crawley 1992). Additionally, the sigmoid shape of functional responses with h > 1 yields a density-dependent predation probability at low re ...
Phylogenetic diversity stabilizes community
... (e.g. Leary and Petchey 2009), emphasizes the role of niche differences among species for promoting community stability. Second, reduction in the strength of interspecific competition has recently been identified as a potentially important mechanism for stabilizing ecological communities (Loreau and ...
... (e.g. Leary and Petchey 2009), emphasizes the role of niche differences among species for promoting community stability. Second, reduction in the strength of interspecific competition has recently been identified as a potentially important mechanism for stabilizing ecological communities (Loreau and ...
Native species whose distribution in the Cairngorms LBAP area has
... Haliaeetus albicilla and red kites Milvus milvus have been subject to officially-sanctioned reintroduction programmes. More recently still, a trial reintroduction of an extinct Scottish mammal species, the Eurasian beaver Castor fiber, is now underway in Argyll. Biodiversity loss through human agenc ...
... Haliaeetus albicilla and red kites Milvus milvus have been subject to officially-sanctioned reintroduction programmes. More recently still, a trial reintroduction of an extinct Scottish mammal species, the Eurasian beaver Castor fiber, is now underway in Argyll. Biodiversity loss through human agenc ...
Biodiversity - Pinelands Preservation Alliance
... hairs stop them from escaping. In contrast, sundews trap insects on sticky leaf surfaces, which then release enzymes to digest the animals. Bladderworts have tiny sacs attached to their modified leaves, which into water or are embedded in boggy soil, depending on the species. Very small animals are ...
... hairs stop them from escaping. In contrast, sundews trap insects on sticky leaf surfaces, which then release enzymes to digest the animals. Bladderworts have tiny sacs attached to their modified leaves, which into water or are embedded in boggy soil, depending on the species. Very small animals are ...
pptx
... “If some mechanism promotes the coexistence of two or more species, each species must be able to increase when it is rare and the others are at their typical abundances; this invasibility criterion is fundamental evidence for species coexistence regardless of the mechanism.” “some subset of the co-o ...
... “If some mechanism promotes the coexistence of two or more species, each species must be able to increase when it is rare and the others are at their typical abundances; this invasibility criterion is fundamental evidence for species coexistence regardless of the mechanism.” “some subset of the co-o ...
Mid-Atlantic/Southern New England BCR Plan
... Brant, and Canvasback. Exploitation and pollution of Chesapeake Bay and other coastal zones, and the accompanying loss of submerged aquatic vegetation have significantly reduced the value of these systems to all waterbirds. Many bird species within the BCR depend heavily on remaining expanses and p ...
... Brant, and Canvasback. Exploitation and pollution of Chesapeake Bay and other coastal zones, and the accompanying loss of submerged aquatic vegetation have significantly reduced the value of these systems to all waterbirds. Many bird species within the BCR depend heavily on remaining expanses and p ...
- Wiley Online Library
... of a dispersal kernel influences the rate of spread, we know much less about the relationships between emigration, movement and settlement rules, and invasion rates. Here, we use a simple, single species individual-based model that explicitly simulates animal dispersal to establish how density-depen ...
... of a dispersal kernel influences the rate of spread, we know much less about the relationships between emigration, movement and settlement rules, and invasion rates. Here, we use a simple, single species individual-based model that explicitly simulates animal dispersal to establish how density-depen ...
pptx
... “If some mechanism promotes the coexistence of two or more species, each species must be able to increase when it is rare and the others are at their typical abundances; this invasibility criterion is fundamental evidence for species coexistence regardless of the mechanism.” “some subset of the co-o ...
... “If some mechanism promotes the coexistence of two or more species, each species must be able to increase when it is rare and the others are at their typical abundances; this invasibility criterion is fundamental evidence for species coexistence regardless of the mechanism.” “some subset of the co-o ...
Journal of Experimental Marine Biology and Ecology
... Hixon, 2008) may be driven by the species' specific toxin or attackbehavior (attributes that only are relevant to measure for lionfish invasions). Impacts could also be caused by attributes associated merely with its presence as any new organism added to the resident community; thus its impact may be ...
... Hixon, 2008) may be driven by the species' specific toxin or attackbehavior (attributes that only are relevant to measure for lionfish invasions). Impacts could also be caused by attributes associated merely with its presence as any new organism added to the resident community; thus its impact may be ...
Reconciliation ecology
Reconciliation ecology is the branch of ecology which studies ways to encourage biodiversity in human-dominated ecosystems. Michael Rosenzweig first articulated the concept in his book Win-Win Ecology, based on the theory that there is not enough area for all of earth’s biodiversity to be saved within designated nature preserves. Therefore, humans should increase biodiversity in human-dominated landscapes. By managing for biodiversity in ways that do not decrease human utility of the system, it is a ""win-win"" situation for both human use and native biodiversity. The science is based in the ecological foundation of human land-use trends and species-area relationships. It has many benefits beyond protection of biodiversity, and there are numerous examples of it around the globe. Aspects of reconciliation ecology can already be found in management legislation, but there are challenges in both public acceptance and ecological success of reconciliation attempts.