Conservation on lowland farms
... Field margins can also be established through natural regeneration. If soil fertility is relatively low, and the soil seed bank and local flora relatively rich, these swards may have a higher conservation value than sown ones, making this method of establishment the most beneficial option. The decli ...
... Field margins can also be established through natural regeneration. If soil fertility is relatively low, and the soil seed bank and local flora relatively rich, these swards may have a higher conservation value than sown ones, making this method of establishment the most beneficial option. The decli ...
The acid taste of climate change: 20th century acidification is
... between emerging climatically extreme events and past environmental impacts are expected to shift ecological communities to alternative stable states or towards hysteretic successional trajectories. However, knowledge on mutual effects of environmental stressors is scarce especially for not experime ...
... between emerging climatically extreme events and past environmental impacts are expected to shift ecological communities to alternative stable states or towards hysteretic successional trajectories. However, knowledge on mutual effects of environmental stressors is scarce especially for not experime ...
Calidrid conservation: unrequited needs
... logistically difficult and they do not address the latter need. Also, the complex and apparently opportunistic and highly plastic nature of food choice in shorebirds may have tended to discount requirements for fine-scale consideration of predator–prey processes in favour of management efforts to ma ...
... logistically difficult and they do not address the latter need. Also, the complex and apparently opportunistic and highly plastic nature of food choice in shorebirds may have tended to discount requirements for fine-scale consideration of predator–prey processes in favour of management efforts to ma ...
Introduced Species (Reise et al.)
... A major component of global change in the biosphere is the introduction of species across natural barriers. If this process continues at present rate, the result will be a complete mix of biota from all climatically similar biogeographical provinces around the world. The young, relatively species-po ...
... A major component of global change in the biosphere is the introduction of species across natural barriers. If this process continues at present rate, the result will be a complete mix of biota from all climatically similar biogeographical provinces around the world. The young, relatively species-po ...
are microhabitat preferences of coexisting species under selection
... fledglings near the nest, or parents feeding new fledglings in the general area of the nest were taken as evidence of a successful nest. Depredation was assumed when the nest or eggs or nestlings (when too young to fledge) disappeared. Most nests were found prior to onset of incubation, but some nes ...
... fledglings near the nest, or parents feeding new fledglings in the general area of the nest were taken as evidence of a successful nest. Depredation was assumed when the nest or eggs or nestlings (when too young to fledge) disappeared. Most nests were found prior to onset of incubation, but some nes ...
The influence of interspecific interactions on species range
... to be spatially homogeneous and continuous. This assumption is unlikely to apply to range shifts, given that distributions are often initially constrained by spatial gradients in temperature and other environmental variables, and dispersal generally will occur across complex, heterogeneous and often ...
... to be spatially homogeneous and continuous. This assumption is unlikely to apply to range shifts, given that distributions are often initially constrained by spatial gradients in temperature and other environmental variables, and dispersal generally will occur across complex, heterogeneous and often ...
The Menjangan Island Reef Project, Bali, Indonesia
... Study Site: Menjangan Island Coral Reef Ecosystem, NW Bali, Indonesia Menjangan Island lies off the northwest corner of Bali, Indonesia, within the Coral Triangle, a 2.3 million square mile area of ocean containing over 75% of known reef-coral species and 40% of fish species. The Coral Triangle sus ...
... Study Site: Menjangan Island Coral Reef Ecosystem, NW Bali, Indonesia Menjangan Island lies off the northwest corner of Bali, Indonesia, within the Coral Triangle, a 2.3 million square mile area of ocean containing over 75% of known reef-coral species and 40% of fish species. The Coral Triangle sus ...
Ecology#5- Ecological Succession Study Guide
... b. ______________ Why do these lead to primary succession instead of secondary succession? ...
... b. ______________ Why do these lead to primary succession instead of secondary succession? ...
Neutral theory and community ecology
... The sole assumption is that the expected abundances of randomly chosen species are independently drawn from a gamma distribution. The first attempt to link this statistical theory to demographic population models was tackled by Kendall (1948). He proposed a simple model of population growth by a bir ...
... The sole assumption is that the expected abundances of randomly chosen species are independently drawn from a gamma distribution. The first attempt to link this statistical theory to demographic population models was tackled by Kendall (1948). He proposed a simple model of population growth by a bir ...
Community secondary production as a measure of ecosystem
... survey. Fish densities and lengths in each random area were then estimated with 1-m 2 visualized quadrats using underwater visual census (UVC, Valentine-Rose et al. 2007b). Surveys were taken within 2 hrs of low tide to facilitate estimates of fish biomass, because fishes were constricted to the mai ...
... survey. Fish densities and lengths in each random area were then estimated with 1-m 2 visualized quadrats using underwater visual census (UVC, Valentine-Rose et al. 2007b). Surveys were taken within 2 hrs of low tide to facilitate estimates of fish biomass, because fishes were constricted to the mai ...
Regeneration of Sponges in Ecological Context: Is Regeneration an
... inability of the large vase-shaped Caribbean reef species Mycale laxissima to reattach if its stalk snapped in a storm. Stalked forms and flattened (sunlightcollecting) forms with photosynthetic symbionts also stood out as being unable to reattach among 16 sponge species (3200 individual sponge piec ...
... inability of the large vase-shaped Caribbean reef species Mycale laxissima to reattach if its stalk snapped in a storm. Stalked forms and flattened (sunlightcollecting) forms with photosynthetic symbionts also stood out as being unable to reattach among 16 sponge species (3200 individual sponge piec ...
Resource pulses, species interactions, and diversity maintenance in
... regions is believed to exert strong control over the life histories, physiological characteristics, and species composition of their biota. While this premise may be intuitive for desert ecologists, we emphasize here that it also has support in species coexistence theory. Although much is known abou ...
... regions is believed to exert strong control over the life histories, physiological characteristics, and species composition of their biota. While this premise may be intuitive for desert ecologists, we emphasize here that it also has support in species coexistence theory. Although much is known abou ...
muledeer001023so
... maintain this population in a healthy condition while recognizing other resource demands on the landbase. ...
... maintain this population in a healthy condition while recognizing other resource demands on the landbase. ...
Lizard population dynamics in a controlled landscape of Florida Scrub
... General comments about project logistics and outcomes Investigating the numerical and genetic consequences for an animal population when a temporal series of habitat islands is created in an otherwise uninhabitable landscape requires a prodigious research effort. I expect that the combined field an ...
... General comments about project logistics and outcomes Investigating the numerical and genetic consequences for an animal population when a temporal series of habitat islands is created in an otherwise uninhabitable landscape requires a prodigious research effort. I expect that the combined field an ...
3 - ICFCST
... and wet climate, in particular with weakly expressed season’s differences. Such conditions are favorable for realization of species potential of invertebrate herbivores having many generations per year, and for aggressiveness of phytopathogens. Nevertheless, epiphytoties also have not been recorded ...
... and wet climate, in particular with weakly expressed season’s differences. Such conditions are favorable for realization of species potential of invertebrate herbivores having many generations per year, and for aggressiveness of phytopathogens. Nevertheless, epiphytoties also have not been recorded ...
Using a Multistructural Object-Based LiDAR Approach to Estimate
... Theoretical and empirical studies have suggested that local biodiversity is strongly influenced, in a positively correlated fashion, by the environmental heterogeneity [4]. More complex environments can host a greater number of ecological niches, which, in turn, can be colonized and inhabited by a g ...
... Theoretical and empirical studies have suggested that local biodiversity is strongly influenced, in a positively correlated fashion, by the environmental heterogeneity [4]. More complex environments can host a greater number of ecological niches, which, in turn, can be colonized and inhabited by a g ...
Food web structure affects the extinction risk of species in ecological
... Today, human activity leads to increased impacts on ecosystems worldwide and species are thought to go extinct around the clock. Furthermore, extinction probabilities are not constant across species. In the light of predicted species extinctions in the near future (Hughes et al., 1997; Ceballos and ...
... Today, human activity leads to increased impacts on ecosystems worldwide and species are thought to go extinct around the clock. Furthermore, extinction probabilities are not constant across species. In the light of predicted species extinctions in the near future (Hughes et al., 1997; Ceballos and ...
AZA Guidelines for Reintroduction of Animals
... argue that animals should be trained in survival skills before release while others suggest that such training is not cost-effective. In such cases, the guidelines should be regarded as hypotheses that must be scientifically tested. Some guidelines may be taxonomically or situationally specific and ...
... argue that animals should be trained in survival skills before release while others suggest that such training is not cost-effective. In such cases, the guidelines should be regarded as hypotheses that must be scientifically tested. Some guidelines may be taxonomically or situationally specific and ...
Biodiversity and the functioning of seagrass ecosystems
... biogenic habitat (Watling & Norse 1998, Thrush & Dayton 2002). These impacts, along with pollution, have caused major changes in abundance, species composition, and structure of marine communities, including regional and even global extinctions (Carlton et al. 1999, Jackson et al. 2001). Of the seve ...
... biogenic habitat (Watling & Norse 1998, Thrush & Dayton 2002). These impacts, along with pollution, have caused major changes in abundance, species composition, and structure of marine communities, including regional and even global extinctions (Carlton et al. 1999, Jackson et al. 2001). Of the seve ...
Network position of hosts in food webs and their parasite diversity
... parasitehost interactions (LP). For each non-parasite species (i), we determined the number of parasite species it harbours (i.e. parasite diversity, Pi) and for each parasite species (i), the number of different host species it uses (i.e. host specificity, Hi). Randomisation of parasitism For each ...
... parasitehost interactions (LP). For each non-parasite species (i), we determined the number of parasite species it harbours (i.e. parasite diversity, Pi) and for each parasite species (i), the number of different host species it uses (i.e. host specificity, Hi). Randomisation of parasitism For each ...
Asymmetric competition between plant species
... having a competitive advantage over smaller ones. Asymmetric competition may arise, for example, as a consequence of variation in emergence times within a population, with those plants emerging first gaining an advantage over later-emerging ones (Ross & Harper 1972). The degree to which the outcome ...
... having a competitive advantage over smaller ones. Asymmetric competition may arise, for example, as a consequence of variation in emergence times within a population, with those plants emerging first gaining an advantage over later-emerging ones (Ross & Harper 1972). The degree to which the outcome ...
Community stability and selective extinction during Earth`s
... Anthropogenically-driven global biological change is predicted to have dramatic negative effects on Earth’s ecosystems over the next centuries. Since the end of the last glaciation, climate change and the significant increase of human impacts on ecological systems have driven enough species to extin ...
... Anthropogenically-driven global biological change is predicted to have dramatic negative effects on Earth’s ecosystems over the next centuries. Since the end of the last glaciation, climate change and the significant increase of human impacts on ecological systems have driven enough species to extin ...
New Zealand Falcon nests suffer lower predation in agricultural
... functional diversity, and has the potential to provide ecosystem services such as pest ...
... functional diversity, and has the potential to provide ecosystem services such as pest ...
Wildlife Review Packet
... learning how to ________ wildlife. During the first 200 years of our nation, before ________ became well established, wildlife provided food and clothing for a growing nation. Early English colonists, unlike the French to the north, had no intention of adapting to the ________. Many species of wildl ...
... learning how to ________ wildlife. During the first 200 years of our nation, before ________ became well established, wildlife provided food and clothing for a growing nation. Early English colonists, unlike the French to the north, had no intention of adapting to the ________. Many species of wildl ...
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.