Drought effects on seedling survival in a tropical moist forest
... factor, and plants show many characters that have clearly evolved in response to drought (Medina 1983; Holbrook et al. 1995; Borchert 1998). In contrast, the importance of drought in moist and wet tropical forests for plant phenology, growth and survival, for life history and life form distributions ...
... factor, and plants show many characters that have clearly evolved in response to drought (Medina 1983; Holbrook et al. 1995; Borchert 1998). In contrast, the importance of drought in moist and wet tropical forests for plant phenology, growth and survival, for life history and life form distributions ...
Co-existence of wildlife and pastoralism on extensive rangelands
... overestimating the impact of vegetative (dietary) competition between wildlife and livestock, since there are many other external factors that are more important in determining their respective well-being. Huntsinger et al. note from case studies in the western USA that management practices can have ...
... overestimating the impact of vegetative (dietary) competition between wildlife and livestock, since there are many other external factors that are more important in determining their respective well-being. Huntsinger et al. note from case studies in the western USA that management practices can have ...
trophic roles and ecological functions provided by a
... Clean, freshwater is a necessity to sustain human life. Maintenance of freshwater biodiversity is critical to sustain vital ecological functions, such as biofiltration, that promote clean water. In addition to clean water, functionally intact and biologically complex freshwater ecosystems also provi ...
... Clean, freshwater is a necessity to sustain human life. Maintenance of freshwater biodiversity is critical to sustain vital ecological functions, such as biofiltration, that promote clean water. In addition to clean water, functionally intact and biologically complex freshwater ecosystems also provi ...
Functional diversity within a morphologically conservative genus of
... group or guild can inform us about both community assembly and ecosystem function is very compelling (Stone et al. 2000). But does functional equivalence exist within communities, and can we predict a priori which species are functionally equivalent and thus potentially interchangeable or compensato ...
... group or guild can inform us about both community assembly and ecosystem function is very compelling (Stone et al. 2000). But does functional equivalence exist within communities, and can we predict a priori which species are functionally equivalent and thus potentially interchangeable or compensato ...
Biological structure of nearshore rocky subtidal habitats in southern
... structure hold over wide geographic scales. Consequently, it is unlikely that there are universally important structuring processes except in the broadest sense. In nearshore reef communities dominated by large brown algae, the life history characteristics of resident algal species, including disper ...
... structure hold over wide geographic scales. Consequently, it is unlikely that there are universally important structuring processes except in the broadest sense. In nearshore reef communities dominated by large brown algae, the life history characteristics of resident algal species, including disper ...
Spotted tree frog - recovery plan - Office of Environment and Heritage
... two frogs recorded over the past three years (Gillespie 2000). Furthermore, breeding activity by the frogs has not occurred at the site for the past two years. Without some sort of active intervention, this population will likely become extinct. The only other known population of the Spotted Tree Fr ...
... two frogs recorded over the past three years (Gillespie 2000). Furthermore, breeding activity by the frogs has not occurred at the site for the past two years. Without some sort of active intervention, this population will likely become extinct. The only other known population of the Spotted Tree Fr ...
local vs. regional influences on local diversity in
... saturated community to resist invasion, and species additions generally to be balanced by losses. Theoretical models suggest that saturation is a reasonably likely outcome of community assembly. For example, communities may become less invadable as the number (Case 1991) or connectance (Pimm 1989) o ...
... saturated community to resist invasion, and species additions generally to be balanced by losses. Theoretical models suggest that saturation is a reasonably likely outcome of community assembly. For example, communities may become less invadable as the number (Case 1991) or connectance (Pimm 1989) o ...
Multiple diversity–stability mechanisms enhance population and
... under either constant or variable nutrient environments. Population, community, and ecosystem data were collected for five months. We found that zooplankton population and community stability is enhanced in species-rich communities in both constant and variable environments. Species richness increase ...
... under either constant or variable nutrient environments. Population, community, and ecosystem data were collected for five months. We found that zooplankton population and community stability is enhanced in species-rich communities in both constant and variable environments. Species richness increase ...
IMPLICATIONS OF PLANT DIVERSITY AND SOIL CHEMICAL
... The globalization of earth’s biota is transforming local and regional floras and faunas. Both intentional and accidental introductions of many species are altering community composition and ecology of long-established biological communities (Davis 2003). Although not all introduced plants become inv ...
... The globalization of earth’s biota is transforming local and regional floras and faunas. Both intentional and accidental introductions of many species are altering community composition and ecology of long-established biological communities (Davis 2003). Although not all introduced plants become inv ...
Is Taxonomic Diversity Enough? The Role of Phylogenetic
... consecutive dry days that the region experiences (Shafter et al. 2014). Although precipitation levels are predicted to increase, the increase will be seen in infrequent heavy precipitation events, straddled by longer dry periods (IPCC 2007). These changes will significantly intensify the drought str ...
... consecutive dry days that the region experiences (Shafter et al. 2014). Although precipitation levels are predicted to increase, the increase will be seen in infrequent heavy precipitation events, straddled by longer dry periods (IPCC 2007). These changes will significantly intensify the drought str ...
THE hEAt IS ON - Defenders of Wildlife
... The Arctic is warming faster than any other part of the world, affecting caribou in all seasons. Warmer autumn and winter temperatures are leading to more freezing rain events that cover the ground with a thick, icy crust that requires the animals to use considerably more effort to break through to ...
... The Arctic is warming faster than any other part of the world, affecting caribou in all seasons. Warmer autumn and winter temperatures are leading to more freezing rain events that cover the ground with a thick, icy crust that requires the animals to use considerably more effort to break through to ...
Chapter 4 Part 2 - Learn District 196
... considerations. Example:During what time of year would be the most favorable for the bullfrog to lay it’s eggs and have the greatest chance of reproductive success? ...
... considerations. Example:During what time of year would be the most favorable for the bullfrog to lay it’s eggs and have the greatest chance of reproductive success? ...
Food webs in space: On the interplay of dynamic instability and
... should tend to be shorter in sparser habitats, and also shorter if the basal resource species itself has high extinction or low colonization rates (Holt 1997a). Even in widespread habitats, given local extinctions and constraints on colonization rates, food chain length may be constrained by spatial ...
... should tend to be shorter in sparser habitats, and also shorter if the basal resource species itself has high extinction or low colonization rates (Holt 1997a). Even in widespread habitats, given local extinctions and constraints on colonization rates, food chain length may be constrained by spatial ...
07
... 22. The Army will inform the O`ahu NARS Manager or his designee in writing at least two weeks prior to any trip to Ka`ala Natural Area Reserve and adjacent Army lands when allowing groups to transit through Ka`ala NAR for educational or service project related visits. The O`ahu NARS Program may dire ...
... 22. The Army will inform the O`ahu NARS Manager or his designee in writing at least two weeks prior to any trip to Ka`ala Natural Area Reserve and adjacent Army lands when allowing groups to transit through Ka`ala NAR for educational or service project related visits. The O`ahu NARS Program may dire ...
Weasel - Ministry of Environment
... Human conflict sutuations with weasels are not common in BC, but predation on poultry and other small livestock occasionally occurs. Trappers can help reduce some of those problems either by general control of populations during trapping operations, or by assisting in the response to specific compla ...
... Human conflict sutuations with weasels are not common in BC, but predation on poultry and other small livestock occasionally occurs. Trappers can help reduce some of those problems either by general control of populations during trapping operations, or by assisting in the response to specific compla ...
Habitat Characteristics Influencing Resident and Over
... life, and have already served as one of the most valuable learning experiences to this point, both academically and personally. Quite a few people have helped me reach this milestone, and this thesis would not be complete without my acknowledgement of their contributions. I would first like to thank ...
... life, and have already served as one of the most valuable learning experiences to this point, both academically and personally. Quite a few people have helped me reach this milestone, and this thesis would not be complete without my acknowledgement of their contributions. I would first like to thank ...
Population structure and species dynamics of Spisula
... The population structure, dynamics and distribution of Spisula solida, Diogenes pugilator and Branchiostoma lanceolatum, common species in the south coast of Portugal, were studied in a spatialetemporal manner in order to understand the influence of cross-shore sediment transport and anthropogenic a ...
... The population structure, dynamics and distribution of Spisula solida, Diogenes pugilator and Branchiostoma lanceolatum, common species in the south coast of Portugal, were studied in a spatialetemporal manner in order to understand the influence of cross-shore sediment transport and anthropogenic a ...
SudingMS_final_1007_RYS
... Werner 1983) and for functional traits (Goldberg 1990), it has been applied to ecosystem Although we discuss functional classification in terms of species and the grouping of species, it also applies to groupings at other levels of organization, such as genotypes or phenotypes of individuals acclima ...
... Werner 1983) and for functional traits (Goldberg 1990), it has been applied to ecosystem Although we discuss functional classification in terms of species and the grouping of species, it also applies to groupings at other levels of organization, such as genotypes or phenotypes of individuals acclima ...
Impacts of invasive alien marine species on
... A good understanding of the mechanisms and magnitude of the impact of invasive alien species on ecosystem services and biodiversity is a prerequisite for the efficient prioritisation of actions to prevent new invasions or for developing mitigation measures. In this review, we identified alien marine ...
... A good understanding of the mechanisms and magnitude of the impact of invasive alien species on ecosystem services and biodiversity is a prerequisite for the efficient prioritisation of actions to prevent new invasions or for developing mitigation measures. In this review, we identified alien marine ...
Ch. 43 Text
... Ecosystem Diversity Human activity is reducing ecosystem diversity, the variety of ecosystems in the biosphere More than 50% of wetlands in the contiguous United States have been drained and converted to agricultural or other use ...
... Ecosystem Diversity Human activity is reducing ecosystem diversity, the variety of ecosystems in the biosphere More than 50% of wetlands in the contiguous United States have been drained and converted to agricultural or other use ...
Functional and phylogenetic diversity of woody plants drive
... Accounting for the functional and phylogenetic diversity of plant communities may thus be key to explaining the variation in herbivory along environmental gradients, in particular along gradients of decreasing plant species richness. This knowledge is of crucial importance in developing a better und ...
... Accounting for the functional and phylogenetic diversity of plant communities may thus be key to explaining the variation in herbivory along environmental gradients, in particular along gradients of decreasing plant species richness. This knowledge is of crucial importance in developing a better und ...
effects of habitat quality on the abundance, behaviour and
... markedly throughout a large part of their European distribution area due to major habitat changes (Tucker & Heath 1994, BirdLife International 2004), they are still common in Central and Southern Portugal, where my research was conducted. Therefore, understanding the mechanisms and habitat variables ...
... markedly throughout a large part of their European distribution area due to major habitat changes (Tucker & Heath 1994, BirdLife International 2004), they are still common in Central and Southern Portugal, where my research was conducted. Therefore, understanding the mechanisms and habitat variables ...
The Ecology of Invasions and The Invasions of Ecology
... that he believes precipitates any discipline formation. By the 1970s—long before invasion ecology was recognized as an independent discipline—several efforts to suppress species invasions had already been undertaken by government agencies around the world.xxviii Most initiatives, however, were regar ...
... that he believes precipitates any discipline formation. By the 1970s—long before invasion ecology was recognized as an independent discipline—several efforts to suppress species invasions had already been undertaken by government agencies around the world.xxviii Most initiatives, however, were regar ...
Alberta Invasive Alien Species Management Framework
... existing, new and potential invasive species. Existing or established invasive species are those species which have already been identified as occurring within Alberta where data exists on their location, patterns of movement and population. New invasive species are those for which data are not read ...
... existing, new and potential invasive species. Existing or established invasive species are those species which have already been identified as occurring within Alberta where data exists on their location, patterns of movement and population. New invasive species are those for which data are not read ...
Factors Affecting Stream Fish Community Composition and Habitat
... them [55], and these may be habitats different from those selected when predators are not present (e.g., piranha’s (Pygocentrus notatus) effect on other species; [56,57] suggested that some of the structure attributed to stream fish assemblages is due to prey species’ common avoidance of predators, ...
... them [55], and these may be habitats different from those selected when predators are not present (e.g., piranha’s (Pygocentrus notatus) effect on other species; [56,57] suggested that some of the structure attributed to stream fish assemblages is due to prey species’ common avoidance of predators, ...
Habitat conservation
Habitat conservation is a land management practice that seeks to conserve, protect and restore habitat areas for wild plants and animals, especially conservation reliant species, and prevent their extinction, fragmentation or reduction in range. It is a priority of many groups that cannot be easily characterized in terms of any one ideology.