Indirect interactions and plant community structure
... not differ significantly (P = 0.22), suggesting that stronger invaders (Ortega and Pearson 2005) do not compete by the same rules as natives. As the diversity of competitors increases in native communities, the strong competitive effects of species on each other that are predicted by two-species mod ...
... not differ significantly (P = 0.22), suggesting that stronger invaders (Ortega and Pearson 2005) do not compete by the same rules as natives. As the diversity of competitors increases in native communities, the strong competitive effects of species on each other that are predicted by two-species mod ...
- Wiley Online Library
... high- to low-intertidal elevations, due to the decreasing influence of environmental filtering. The abundance of macrobenthic algae and invertebrates was estimated at four rocky shores spanning ca. 200 km of the coast over a 36-month period. Functional richness and dispersion were contrasted aga ...
... high- to low-intertidal elevations, due to the decreasing influence of environmental filtering. The abundance of macrobenthic algae and invertebrates was estimated at four rocky shores spanning ca. 200 km of the coast over a 36-month period. Functional richness and dispersion were contrasted aga ...
LATITUDINAL GRADIENTS OF BIODIVERSITY: Pattern, Process
... quadrats decreases as latitude increases, creating a systematic bias that confounds measures of area and latitude. Even quadrats based on linear dimensions differ in the amount of land they contain because most coastal quadrats will not be full of land (Rosenzweig 1995). Consequently it is difficult ...
... quadrats decreases as latitude increases, creating a systematic bias that confounds measures of area and latitude. Even quadrats based on linear dimensions differ in the amount of land they contain because most coastal quadrats will not be full of land (Rosenzweig 1995). Consequently it is difficult ...
the fern understory as an ecological filter
... Abstract. We investigated the role of the fern understory of closed-canopy forests as an ecological filter shaping the density, species composition, size structure, and spatial distribution of the seedling bank. In New England deciduous forests we tested the hypothesis that the understory stratum is ...
... Abstract. We investigated the role of the fern understory of closed-canopy forests as an ecological filter shaping the density, species composition, size structure, and spatial distribution of the seedling bank. In New England deciduous forests we tested the hypothesis that the understory stratum is ...
The Dynamics of Temperate Forest Fragmentation
... habitat requirements of some species (Sullivan and Shaffer 1975), we suggest that large conservation reserves are essential to the preservation of biodiversity. The synergistic effects of loss of area (as dictated by species-area relationships) and fragmentation (including isolation as addressed by ...
... habitat requirements of some species (Sullivan and Shaffer 1975), we suggest that large conservation reserves are essential to the preservation of biodiversity. The synergistic effects of loss of area (as dictated by species-area relationships) and fragmentation (including isolation as addressed by ...
Human-wildlife conflict in Africa - Library
... defined as problem-causing animals and are responsible for most of the human-wildlife conflicts. This could be due to the fact that farmers often feel that the large wild animals are the property of the government, as was the case under previous colonial legislation, and therefore local communities ...
... defined as problem-causing animals and are responsible for most of the human-wildlife conflicts. This could be due to the fact that farmers often feel that the large wild animals are the property of the government, as was the case under previous colonial legislation, and therefore local communities ...
Status of the Whooping Crane in Alberta
... ‘endangered.’ The purpose of this status report is to compile and summarize both historic and up-todate information and to update the current status of the Whooping Crane in Alberta. Whooping Crane reached a world-wide population low of only 15 individuals in a single migrating flock and 6 individua ...
... ‘endangered.’ The purpose of this status report is to compile and summarize both historic and up-todate information and to update the current status of the Whooping Crane in Alberta. Whooping Crane reached a world-wide population low of only 15 individuals in a single migrating flock and 6 individua ...
Litchman CV - Litchman-Klausmeier Lab
... Stomp M*, J Huisman, GG Mittelbach, E Litchman and CA Klausmeier. 2011. Large scale biodiversity gradients in freshwater phytoplankton. Ecology 92: 2096-2107. Highlighted in Science and Faculty of 1000. Edwards KF*, CA Klausmeier and E Litchman. 2011. Evidence for a three-way tradeoff between nitrog ...
... Stomp M*, J Huisman, GG Mittelbach, E Litchman and CA Klausmeier. 2011. Large scale biodiversity gradients in freshwater phytoplankton. Ecology 92: 2096-2107. Highlighted in Science and Faculty of 1000. Edwards KF*, CA Klausmeier and E Litchman. 2011. Evidence for a three-way tradeoff between nitrog ...
Grassland Songbird Community Relationships Mediated by Cattle
... (Hoekstra et al. 2005). Mixed-grass prairie has been reduced to only 29% of its original range (Samson et al. 2004). Grassland birds in North America have been declining significantly due to loss, degradation, and fragmentation of habitat and other species-specific threats (Knopf 1994, Houston and S ...
... (Hoekstra et al. 2005). Mixed-grass prairie has been reduced to only 29% of its original range (Samson et al. 2004). Grassland birds in North America have been declining significantly due to loss, degradation, and fragmentation of habitat and other species-specific threats (Knopf 1994, Houston and S ...
1. UNDERSTANDING PONDS - Freshwater Habitats Trust
... There are around 80 pond-associated Priority species in England alone, and additional species in Scotland, Wales and Northern Ireland. You can find out which pond-associated Priority plants and animals occur near you by using the Species Mapping tool on our website: http://freshwaterhabitats.org.uk/ ...
... There are around 80 pond-associated Priority species in England alone, and additional species in Scotland, Wales and Northern Ireland. You can find out which pond-associated Priority plants and animals occur near you by using the Species Mapping tool on our website: http://freshwaterhabitats.org.uk/ ...
Vernal Pool Fairy Shrimp
... Recolonization opportunities are also diminished when physical barriers, such as development or lack of vernal pool habitat, isolate populations from one another or inhibit transport of cysts. Isolated populations are potentially more susceptible to inbreeding depression, which can result in local e ...
... Recolonization opportunities are also diminished when physical barriers, such as development or lack of vernal pool habitat, isolate populations from one another or inhibit transport of cysts. Isolated populations are potentially more susceptible to inbreeding depression, which can result in local e ...
View pdf - Gopher Tortoise Council
... roughly is the dividing line. By the beginning of our study, the western striped newt could only be found reliably at a single wetland within the Fall Line Sandhills Natural Area of GA. The eastern variety, although thought to be in decline globally, at least was holding on in its stronghold locatio ...
... roughly is the dividing line. By the beginning of our study, the western striped newt could only be found reliably at a single wetland within the Fall Line Sandhills Natural Area of GA. The eastern variety, although thought to be in decline globally, at least was holding on in its stronghold locatio ...
View PDF - Cramer Fish Sciences
... These principles anticipated, in part, several general ecological and evolutionary hypotheses that continue to be debated and tested by ecologists today. The first principle predicts that species richness will increase with increasing spatial heterogeneity, as observed in many other taxa and as pred ...
... These principles anticipated, in part, several general ecological and evolutionary hypotheses that continue to be debated and tested by ecologists today. The first principle predicts that species richness will increase with increasing spatial heterogeneity, as observed in many other taxa and as pred ...
Battle Creek Integrated Weed Management Plan
... displacement of native plants, along with the disruption of properly functioning ecological systems through alteration of ecosystem cycles, hybridization with native species, promoting other non-native or undesirable species, and reducing biological diversity. Unique sites and plant communities have ...
... displacement of native plants, along with the disruption of properly functioning ecological systems through alteration of ecosystem cycles, hybridization with native species, promoting other non-native or undesirable species, and reducing biological diversity. Unique sites and plant communities have ...
The meaning of functional trait composition of food webs for
... relationship between the diversity and productivity of plant communities [20]. The sampling effect is based on the hypothesis that some dominant species, because of their traits (such as leaf traits [21]), drive ecosystem functioning [22] and that they are more likely to be found in a diverse commun ...
... relationship between the diversity and productivity of plant communities [20]. The sampling effect is based on the hypothesis that some dominant species, because of their traits (such as leaf traits [21]), drive ecosystem functioning [22] and that they are more likely to be found in a diverse commun ...
The meaning of functional trait composition of food webs for
... relationship between the diversity and productivity of plant communities [20]. The sampling effect is based on the hypothesis that some dominant species, because of their traits (such as leaf traits [21]), drive ecosystem functioning [22] and that they are more likely to be found in a diverse commun ...
... relationship between the diversity and productivity of plant communities [20]. The sampling effect is based on the hypothesis that some dominant species, because of their traits (such as leaf traits [21]), drive ecosystem functioning [22] and that they are more likely to be found in a diverse commun ...
The Biology of Chameleons
... Threatened, a figure that is much higher than that for other groups of reptiles. Of the tangible threats, habitat alteration appears to be the most prevalent, with a disproportionate impact on narrow-range endemics. Chameleons are also popular in the pet trade, and the more than 30 years of trade st ...
... Threatened, a figure that is much higher than that for other groups of reptiles. Of the tangible threats, habitat alteration appears to be the most prevalent, with a disproportionate impact on narrow-range endemics. Chameleons are also popular in the pet trade, and the more than 30 years of trade st ...
Ecological Risk Assessment of Non
... United States, one must go back 10,000 to 15,000 years ago when the Wisconsinan glacier covered portions of North America (Figure 1). The Post Quaternary Introduction Theory put forth by Reynolds et al (1974), states that native earthworms were extirpated by glaciation and any population reintroduce ...
... United States, one must go back 10,000 to 15,000 years ago when the Wisconsinan glacier covered portions of North America (Figure 1). The Post Quaternary Introduction Theory put forth by Reynolds et al (1974), states that native earthworms were extirpated by glaciation and any population reintroduce ...
Chapter 52 An Introduction to Ecology and the Biosphere Multiple
... 35) Air masses formed over the Pacific Ocean are moved by prevailing westerlies where they encounter extensive north-south mountain ranges, such as the Sierra Nevada and the Cascades. Which statement best describes the changes that these air masses undergo? A) The cool, moist Pacific air heats up as ...
... 35) Air masses formed over the Pacific Ocean are moved by prevailing westerlies where they encounter extensive north-south mountain ranges, such as the Sierra Nevada and the Cascades. Which statement best describes the changes that these air masses undergo? A) The cool, moist Pacific air heats up as ...
Baynes Sound/ Lambert Channel-Hornby Island Waters Important
... rather than the capacity to design and implement the necessary projects. The IBA program will help focus conservation activities in this area. By doing so, waterbirds can be incorporated in to the various projects in the region. In addition, highlighting the birds within these IBAs can help galvaniz ...
... rather than the capacity to design and implement the necessary projects. The IBA program will help focus conservation activities in this area. By doing so, waterbirds can be incorporated in to the various projects in the region. In addition, highlighting the birds within these IBAs can help galvaniz ...
Ecosystem Services: From Biodiversity to Society, Part 1
... the concept of ES. Given the ubiquity these socioeconomic–ecological interrelationships across the globe, the ES framework has almost universal potential and its importance in policymaking is growing. Nonetheless, ES and the way the concept is sometimes applied (e.g. the commodification or monetaris ...
... the concept of ES. Given the ubiquity these socioeconomic–ecological interrelationships across the globe, the ES framework has almost universal potential and its importance in policymaking is growing. Nonetheless, ES and the way the concept is sometimes applied (e.g. the commodification or monetaris ...
Brolga - Ozcranes
... which is typical of many constructed wetlands on farms. The ephemeral wetlands (and to a lesser extent the semi-permanent wetlands) typically had larger, healthier stands of waterplants, particularly Eleocharis species, the tubers of which are known to provide Brolgas with an important food source. ...
... which is typical of many constructed wetlands on farms. The ephemeral wetlands (and to a lesser extent the semi-permanent wetlands) typically had larger, healthier stands of waterplants, particularly Eleocharis species, the tubers of which are known to provide Brolgas with an important food source. ...
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.