- D-Scholarship@Pitt
... tree species on Barro Colorado Island in Panama (Hubbel 1997). Of the dozens of species area distribution models, the vast majority focused on explaining the hollow curve of species abundance – such that SAD’s were dubbed “the science of scarcity” (Soule 1986). This has tremendous merit, of course – ...
... tree species on Barro Colorado Island in Panama (Hubbel 1997). Of the dozens of species area distribution models, the vast majority focused on explaining the hollow curve of species abundance – such that SAD’s were dubbed “the science of scarcity” (Soule 1986). This has tremendous merit, of course – ...
A land manager`s guide to conserving habitat for forest birds in
... They maintain clean air and water, provide habitat for thousands of plants and animals, present recreational opportunities, provide income, and contribute to human health and general well being. In southern Ontario, the amount of forest has been dramatically reduced from what it was before European ...
... They maintain clean air and water, provide habitat for thousands of plants and animals, present recreational opportunities, provide income, and contribute to human health and general well being. In southern Ontario, the amount of forest has been dramatically reduced from what it was before European ...
A land manager`s guide to conserving habitat for forest birds in
... They maintain clean air and water, provide habitat for thousands of plants and animals, present recreational opportunities, provide income, and contribute to human health and general well being. In southern Ontario, the amount of forest has been dramatically reduced from what it was before European ...
... They maintain clean air and water, provide habitat for thousands of plants and animals, present recreational opportunities, provide income, and contribute to human health and general well being. In southern Ontario, the amount of forest has been dramatically reduced from what it was before European ...
limiting resources and the regulation of diversity in phytoplankton
... sources, we first looked for likely ranges of these values using physiological data on phytoplankton from laboratory experiments. To estimate threshold limiting levels, we used data from published sources (Eppley et al. 1969, Tilman and Kilham 1976, Ahlgren 1977, Tilman 1977, Gotham and Rhee 1981, R ...
... sources, we first looked for likely ranges of these values using physiological data on phytoplankton from laboratory experiments. To estimate threshold limiting levels, we used data from published sources (Eppley et al. 1969, Tilman and Kilham 1976, Ahlgren 1977, Tilman 1977, Gotham and Rhee 1981, R ...
PHILOSOPHY, HISTORY
... sympatric species? What factors are responsible for the relative abundance of species in an assemblage? These are the types of questions in community ecology that can be explored with null models. Among ecologists, null models have gained popularity only in the last 20 years. The phrase "null models ...
... sympatric species? What factors are responsible for the relative abundance of species in an assemblage? These are the types of questions in community ecology that can be explored with null models. Among ecologists, null models have gained popularity only in the last 20 years. The phrase "null models ...
Predator interactions, mesopredator release and biodiversity
... extinction of some prey, especially those that are susceptible because they have low population growth rates or live in situations that leave them exposed to attack by mesopredators (Courchamp et al. 1999). Mesopredator release is therefore important not only for our understanding of how complex foo ...
... extinction of some prey, especially those that are susceptible because they have low population growth rates or live in situations that leave them exposed to attack by mesopredators (Courchamp et al. 1999). Mesopredator release is therefore important not only for our understanding of how complex foo ...
Habitat and dietary specificity in aphidophagous ladybirds
... (Hattingh & Samways 1992), although no such experiments have been carried out with aphidophagous species. Specialist aphidophages are known to be found associated with lower densities of aphids than generalists (Sloggett & Majerus 2000a, b). However, more recent work on body size and on foraging ada ...
... (Hattingh & Samways 1992), although no such experiments have been carried out with aphidophagous species. Specialist aphidophages are known to be found associated with lower densities of aphids than generalists (Sloggett & Majerus 2000a, b). However, more recent work on body size and on foraging ada ...
Predator interactions, mesopredator release and biodiversity
... extinction of some prey, especially those that are susceptible because they have low population growth rates or live in situations that leave them exposed to attack by mesopredators (Courchamp et al. 1999). Mesopredator release is therefore important not only for our understanding of how complex foo ...
... extinction of some prey, especially those that are susceptible because they have low population growth rates or live in situations that leave them exposed to attack by mesopredators (Courchamp et al. 1999). Mesopredator release is therefore important not only for our understanding of how complex foo ...
Filling the Gaps
... Protected areas were a visionary and necessary concept, but not one that came without cost. Setting aside land and water means that the resources they contain are “locked up”: while some people gain from the ecosystem services, the chances to see wildlife and the other benefits that protected areas ...
... Protected areas were a visionary and necessary concept, but not one that came without cost. Setting aside land and water means that the resources they contain are “locked up”: while some people gain from the ecosystem services, the chances to see wildlife and the other benefits that protected areas ...
Insect herbivory in an experimental agroecosystem: the relative
... biomass data that we found by performing a regression against the x and y spatial positions of the plots (Crist et al. 2006). We did not use detrended data in the profile ANOVA, however, because this would preclude direct comparison of differences in biomass inside and outside of exclosures within e ...
... biomass data that we found by performing a regression against the x and y spatial positions of the plots (Crist et al. 2006). We did not use detrended data in the profile ANOVA, however, because this would preclude direct comparison of differences in biomass inside and outside of exclosures within e ...
Piping Plover (Charadrius melodus melodus)
... The federal, provincial, and territorial government signatories under the Accord for the Protection of Species at Risk (1996) agreed to establish complementary legislation and programs that provide for effective protection of species at risk throughout Canada. Under the Species at Risk Act (S.C. 200 ...
... The federal, provincial, and territorial government signatories under the Accord for the Protection of Species at Risk (1996) agreed to establish complementary legislation and programs that provide for effective protection of species at risk throughout Canada. Under the Species at Risk Act (S.C. 200 ...
Western Harvest Mouse (Reithrodontomys megalotis megalotis)
... habitats. The results of the SEA are incorporated directly into the plan itself, but are also summarized below in this statement. The provincial management plan notes in section 8 that efforts to maintain Western Harvest Mouse habitat are not expected to have negative effects on other species and th ...
... habitats. The results of the SEA are incorporated directly into the plan itself, but are also summarized below in this statement. The provincial management plan notes in section 8 that efforts to maintain Western Harvest Mouse habitat are not expected to have negative effects on other species and th ...
Evaluating the role of the dingo as a trophic
... 82 dingo scats. Cat remains were also found in one gut sample and one scat. Consumption of cats by dingoes has also been reported by Newsome et al. (1983), Lundie-Jenkins et al. (1993), Thomson (1992a), Corbett (1995) and Paltridge (2002). In addition, Pettigrew (1993) reported that an adult cat fit ...
... 82 dingo scats. Cat remains were also found in one gut sample and one scat. Consumption of cats by dingoes has also been reported by Newsome et al. (1983), Lundie-Jenkins et al. (1993), Thomson (1992a), Corbett (1995) and Paltridge (2002). In addition, Pettigrew (1993) reported that an adult cat fit ...
Terrestrial Biodiversity
... any time during human civilisation and, importantly, the rate of change is faster. The IPCC (2007b) has highlighted the fact that biodiversity is likely to be the most vulnerable sector for the Australia and New Zealand region (as it is in general around the world). This vulnerability is a consequen ...
... any time during human civilisation and, importantly, the rate of change is faster. The IPCC (2007b) has highlighted the fact that biodiversity is likely to be the most vulnerable sector for the Australia and New Zealand region (as it is in general around the world). This vulnerability is a consequen ...
River restoration: the fuzzy logic of repairing reaches to reverse
... of timber-floated streams in Finland, Louhi et al. (2011) found that a critical habitat, native bryophyte patches, did not recover, and thus limited the recovery of stream invertebrates that typically inhabit these patches. Potential colonists were present above the restored reaches, and thus this wa ...
... of timber-floated streams in Finland, Louhi et al. (2011) found that a critical habitat, native bryophyte patches, did not recover, and thus limited the recovery of stream invertebrates that typically inhabit these patches. Potential colonists were present above the restored reaches, and thus this wa ...
Aurochs and Bison – natural range and habitat selection, de
... Kuemmerle et al expose logic failures and lack of data in assuming bison a refuge species in early Holocene - reconstructions of human population and farming expansion in Europe do not support view that bison refugee species before 8000 BP, that human pressure had pushed bison out of S and W Europe ...
... Kuemmerle et al expose logic failures and lack of data in assuming bison a refuge species in early Holocene - reconstructions of human population and farming expansion in Europe do not support view that bison refugee species before 8000 BP, that human pressure had pushed bison out of S and W Europe ...
Ecology and Evolution of Adaptive Morphological Variation in Fish
... Harvell1990). Various morphological structures in prey organisms’ function as efficient adaptations against predation, and these morphological defenses could be either constitutive or environmentally induced. Furthermore, recent findings have shown that predation may be involved in creating variatio ...
... Harvell1990). Various morphological structures in prey organisms’ function as efficient adaptations against predation, and these morphological defenses could be either constitutive or environmentally induced. Furthermore, recent findings have shown that predation may be involved in creating variatio ...
Detection of alternative stable states in marine communities
... not straightforward. While the meaning of stability and equilibrium points are very clearcut in theory, it is not so in nature. Problems of time scales and spatial extent blur what stability, equilibrium, and habitat might mean in nature (Grimm and Wissel, 1997; Petraitis and Latham, 1999). At the v ...
... not straightforward. While the meaning of stability and equilibrium points are very clearcut in theory, it is not so in nature. Problems of time scales and spatial extent blur what stability, equilibrium, and habitat might mean in nature (Grimm and Wissel, 1997; Petraitis and Latham, 1999). At the v ...
Your essential guide to grouse shooting and moorland management
... and therefore so is the economic return6. Walked-up shooting is a highly engaging sport, but it cannot typically provide the wide range of associated benefits provided by driven shooting because of its lower economic turnover. © 2016 Game & Wildlife Conservation Trust Version 1.1 (21/10/16) ...
... and therefore so is the economic return6. Walked-up shooting is a highly engaging sport, but it cannot typically provide the wide range of associated benefits provided by driven shooting because of its lower economic turnover. © 2016 Game & Wildlife Conservation Trust Version 1.1 (21/10/16) ...
Limits on ecosystem trophic complexity: insights from ecological
... some food chains of length 9. In fact, Bondavalli & Ulanowicz (1999) have identified feeding pathways as long as 12 in the Florida Bay ecosystem. However, many consumers above the second trophic level are omnivorous and cannot be assigned uniquely to a given trophic level (Cousins 1985). Usually, a ...
... some food chains of length 9. In fact, Bondavalli & Ulanowicz (1999) have identified feeding pathways as long as 12 in the Florida Bay ecosystem. However, many consumers above the second trophic level are omnivorous and cannot be assigned uniquely to a given trophic level (Cousins 1985). Usually, a ...
Limits on ecosystem trophic complexity: insights from
... some food chains of length 9. In fact, Bondavalli & Ulanowicz (1999) have identified feeding pathways as long as 12 in the Florida Bay ecosystem. However, many consumers above the second trophic level are omnivorous and cannot be assigned uniquely to a given trophic level (Cousins 1985). Usually, a ...
... some food chains of length 9. In fact, Bondavalli & Ulanowicz (1999) have identified feeding pathways as long as 12 in the Florida Bay ecosystem. However, many consumers above the second trophic level are omnivorous and cannot be assigned uniquely to a given trophic level (Cousins 1985). Usually, a ...
(Apios americana Medicus) in Colorado
... Program 1999, Weber and Wittman 1996). Using the Natural Heritage ranking system, it has been assigned global and state rarity ranks of G5S1, indicating that this species is globally secure but critically imperiled in the state of Colorado. It is the only representative of the genus Apios in Colorad ...
... Program 1999, Weber and Wittman 1996). Using the Natural Heritage ranking system, it has been assigned global and state rarity ranks of G5S1, indicating that this species is globally secure but critically imperiled in the state of Colorado. It is the only representative of the genus Apios in Colorad ...
Synthesis of Ecosystem Resources and Threats
... adults of which are likely dying due senescence (old age) hastened by stressors such as browsing by introduced ungulates. Quercus tomentella is restricted to seven locations on the island, yet maintains relatively high genetic diversity; the greatest threats to this species are likely small populati ...
... adults of which are likely dying due senescence (old age) hastened by stressors such as browsing by introduced ungulates. Quercus tomentella is restricted to seven locations on the island, yet maintains relatively high genetic diversity; the greatest threats to this species are likely small populati ...
Small Game Management in Georgia - Georgia DNR
... More than 45 million acres of land funded by the Wildlife Restoration Program are maintained for wildlife across the country. The Pittman Robertson Act funds essential research by more than 25,000 professional wildlife biologists nationwide. The program also supports the training of more than 750,00 ...
... More than 45 million acres of land funded by the Wildlife Restoration Program are maintained for wildlife across the country. The Pittman Robertson Act funds essential research by more than 25,000 professional wildlife biologists nationwide. The program also supports the training of more than 750,00 ...
Final Report - The Rufford Foundation
... season than those of the Village Troop and the High-altitude Troop. Time spent moving was comparable across all three troops (10-20%) although it was not a major activity of the central Himalayan langur. The troops possibly need to spend more time on resting because they consume mainly leaves and al ...
... season than those of the Village Troop and the High-altitude Troop. Time spent moving was comparable across all three troops (10-20%) although it was not a major activity of the central Himalayan langur. The troops possibly need to spend more time on resting because they consume mainly leaves and al ...
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.