Does increased habitat complexity reduce predation and
... Habitats with high structural complexity typically support more species and individuals than nearby less complex habitats (Bell et al. 1991). One mechanism proposed to explain this general pattern is that high structural complexity reduces competition and predation (Holt 1987, Hixon and Menge 1991). ...
... Habitats with high structural complexity typically support more species and individuals than nearby less complex habitats (Bell et al. 1991). One mechanism proposed to explain this general pattern is that high structural complexity reduces competition and predation (Holt 1987, Hixon and Menge 1991). ...
a simulation of the future of kakapo
... The kakapo (Strigops habroptilus), a large parrot endemic to New Zealand, is one of the world’s rarest birds, with a total population (in 2005) of only 86. It possesses a suite of unusual features that have made it especially vulnerable to the ecological changes that have occurred in New Zealand sin ...
... The kakapo (Strigops habroptilus), a large parrot endemic to New Zealand, is one of the world’s rarest birds, with a total population (in 2005) of only 86. It possesses a suite of unusual features that have made it especially vulnerable to the ecological changes that have occurred in New Zealand sin ...
SUCCESSION AND STABILITY
... z Seedling survival during the first growing season was highest on the barren control plot (inhibition) z But, during the second growing season, the pattern reserved, the survival ...
... z Seedling survival during the first growing season was highest on the barren control plot (inhibition) z But, during the second growing season, the pattern reserved, the survival ...
Evolution, ecology and conservation of Dolly Varden
... Here we focus on the biology and conservation of three lesserknown chars: Dolly Varden (S. malma), white-spotted char (S. leucomaenis), and bull trout (S. confluentus). We consider these species together because they share a similar Pacific Rim geography and evolutionary history, and provide an inst ...
... Here we focus on the biology and conservation of three lesserknown chars: Dolly Varden (S. malma), white-spotted char (S. leucomaenis), and bull trout (S. confluentus). We consider these species together because they share a similar Pacific Rim geography and evolutionary history, and provide an inst ...
Paroo River Wetlands Ramsar site: Ecological character description
... Authority. At a local level, feral animals and weeds can impact on the ecological values of the Ramsar site. There is an urgent need to identify any levee banks that may alter or interrupt flows in the river and to develop policies that restrict further development throughout the catchment. Ongoing ...
... Authority. At a local level, feral animals and weeds can impact on the ecological values of the Ramsar site. There is an urgent need to identify any levee banks that may alter or interrupt flows in the river and to develop policies that restrict further development throughout the catchment. Ongoing ...
Management and Restoration Discussion
... Question: Are there restoration techniques other than translocation that could be used. -Other techniques were suggested such as using a bivalve hatchery to supply modiolus and restoring other reef forming bivalves. The best approach will likely be using all three approaches, with translocation the ...
... Question: Are there restoration techniques other than translocation that could be used. -Other techniques were suggested such as using a bivalve hatchery to supply modiolus and restoring other reef forming bivalves. The best approach will likely be using all three approaches, with translocation the ...
Ecological opportunity and the adaptive
... of empty and varied niches, underutilized resources, and the implication that these conditions underlie development of new biological diversity. These treatments also embraced the insight that ecological opportunity is prospective, as its name implies, and therefore may exist in a community even if ...
... of empty and varied niches, underutilized resources, and the implication that these conditions underlie development of new biological diversity. These treatments also embraced the insight that ecological opportunity is prospective, as its name implies, and therefore may exist in a community even if ...
Predation by the red fox - NSW threat abatement plan (PDF
... It is the requirement of the NPWS that all activities (including pest control) proposed on NPWS land are assessed under Part 5 of the EP&A Act. This involves an assessment of whether the activity is likely to significantly affect the environment, including threatened species, populations and ecologi ...
... It is the requirement of the NPWS that all activities (including pest control) proposed on NPWS land are assessed under Part 5 of the EP&A Act. This involves an assessment of whether the activity is likely to significantly affect the environment, including threatened species, populations and ecologi ...
species introduction and replacement among mosquitoes
... per capita resource availability than its competitor. The inference of competitive advantage is particularly clear cut if one species can maintain positive population growth under conditions that yield negative population growth for the other species. I used this approach. Experimental cages.—The ex ...
... per capita resource availability than its competitor. The inference of competitive advantage is particularly clear cut if one species can maintain positive population growth under conditions that yield negative population growth for the other species. I used this approach. Experimental cages.—The ex ...
The role of earthworms on plant performance and ecosystem function.
... 1.1 Biodiversity and ecosystem functioning The extent to which ecosystem functioning depends on biodiversity has risen as a crucial question at a time when human activities accelerated the rate at which species are disappearing (Ehrlich 1988, Soule 1991). Earth’s biota with its extraordinary diversi ...
... 1.1 Biodiversity and ecosystem functioning The extent to which ecosystem functioning depends on biodiversity has risen as a crucial question at a time when human activities accelerated the rate at which species are disappearing (Ehrlich 1988, Soule 1991). Earth’s biota with its extraordinary diversi ...
J. John Sepkoski, Jr.
... little of the intended impact in many estuarine and coastal waters. The second and opposite action with nutrient enrichment comes from recent proposals for large-scale engineering projects to fertilize waters of the open ocean to increase primary production (Cullen and Chisholm, 1999). In the one ca ...
... little of the intended impact in many estuarine and coastal waters. The second and opposite action with nutrient enrichment comes from recent proposals for large-scale engineering projects to fertilize waters of the open ocean to increase primary production (Cullen and Chisholm, 1999). In the one ca ...
Wolverine (Gulo gulo) - Registre public des espèces en péril
... Reason for designation Estimated total population size exceeds 13,000 mature individuals. Declines have been reported in Alberta and parts of British Columbia and Ontario. A distinct subspecies may be extirpated from Vancouver Island. Many pelts used locally are not included in official statistics, ...
... Reason for designation Estimated total population size exceeds 13,000 mature individuals. Declines have been reported in Alberta and parts of British Columbia and Ontario. A distinct subspecies may be extirpated from Vancouver Island. Many pelts used locally are not included in official statistics, ...
Assessment of environmental management effects in a shallow
... Izzo and Hull, 1991; Borum and Sand-Jensen, 1996). Coastal lagoons are “nursery” or “growing” areas for numerous valuable marine species and are areas where many species spend part of their biological cycle. Particular management activities are often necessary to maintain water exchange and migratio ...
... Izzo and Hull, 1991; Borum and Sand-Jensen, 1996). Coastal lagoons are “nursery” or “growing” areas for numerous valuable marine species and are areas where many species spend part of their biological cycle. Particular management activities are often necessary to maintain water exchange and migratio ...
Recovery Strategy for the Dakota Skipper (Hesperia dacotae) in
... Policy, Plan and Program Proposals. The purpose of a SEA is to incorporate environmental considerations into the development of public policies, plans, and program proposals to support environmentally sound decision-making. Recovery planning is intended to benefit species at risk and biodiversity in ...
... Policy, Plan and Program Proposals. The purpose of a SEA is to incorporate environmental considerations into the development of public policies, plans, and program proposals to support environmentally sound decision-making. Recovery planning is intended to benefit species at risk and biodiversity in ...
reproductive success responses to habitat fragmentation in
... 2.2.1 Forestry as a cause of habitat fragmentation in Finland Although over 85% of the surface area of Finland is classified as forestry land by the forest industry, only about 65% of the total surface area is covered by actual forests (Finnish Forest Research Institute 2011). Of the land covered ...
... 2.2.1 Forestry as a cause of habitat fragmentation in Finland Although over 85% of the surface area of Finland is classified as forestry land by the forest industry, only about 65% of the total surface area is covered by actual forests (Finnish Forest Research Institute 2011). Of the land covered ...
Ecological enhancement of an aphid parasitoid
... reproductive success. The presence of flowering buckwheat Fagopyrum esculentum Moench (c.v. Kitawase) (Polygonaceae) plants caused a slight, non-significant increase in rates of parasitism. Field surveys of natural aphid populations in a wheat Triticum aestivum (L.) (c.v. Otane) (Gramineae) field sh ...
... reproductive success. The presence of flowering buckwheat Fagopyrum esculentum Moench (c.v. Kitawase) (Polygonaceae) plants caused a slight, non-significant increase in rates of parasitism. Field surveys of natural aphid populations in a wheat Triticum aestivum (L.) (c.v. Otane) (Gramineae) field sh ...
Key Threatening Process Nomination Form
... deer elsewhere are known to cause substantial ecological damage (see Cotes et al. 2004 for a summary) and damage caused by exotic herbivores of comparable size – feral goats, for example – is substantial and typically related to population size (Parkes et al. 1996). With favourable climates in Austr ...
... deer elsewhere are known to cause substantial ecological damage (see Cotes et al. 2004 for a summary) and damage caused by exotic herbivores of comparable size – feral goats, for example – is substantial and typically related to population size (Parkes et al. 1996). With favourable climates in Austr ...
Habitat Monitoring Strategy for the Tidal Skagit Delta Integrating
... marsh in the delta to recover Skagit Chinook populations, although the actual acreage necessary for Chinook recovery will depend on the quality of individual restoration project results, the landscape context and connectivity of the projects, and indirect and cumulative effects of landscape manageme ...
... marsh in the delta to recover Skagit Chinook populations, although the actual acreage necessary for Chinook recovery will depend on the quality of individual restoration project results, the landscape context and connectivity of the projects, and indirect and cumulative effects of landscape manageme ...
Widespread mesopredator effects after wolf extirpation Biological
... West above. Lower productivity in the Yukon might account for part of these differences in coyote densities. An alternative explanation for coyote expansion in the American West is forest harvesting. During the same period when wolves were being exterminated, humans were also logging forests and cle ...
... West above. Lower productivity in the Yukon might account for part of these differences in coyote densities. An alternative explanation for coyote expansion in the American West is forest harvesting. During the same period when wolves were being exterminated, humans were also logging forests and cle ...
Trait-dependent modification of facilitation on cobble
... evidence of the role of facilitator traits is lacking for most systems (Bruno and Bertness 2001). Such knowledge would nevertheless be useful for developing facilitation theory, predicting community structure under altered environmental conditions, and for identifying conservation priorities. The pu ...
... evidence of the role of facilitator traits is lacking for most systems (Bruno and Bertness 2001). Such knowledge would nevertheless be useful for developing facilitation theory, predicting community structure under altered environmental conditions, and for identifying conservation priorities. The pu ...
Aspects of Ecology and Adaptation with an Emphasis on hominoid
... information to be conjoined towards the end of devising a bigger, clearer picture of things past - such as is the quest of palaeoanthropologists and palaeoprimatologists alike. This thesis will endeavor to reveal the tremendous and varied insights the science of ecology can provide in relation to th ...
... information to be conjoined towards the end of devising a bigger, clearer picture of things past - such as is the quest of palaeoanthropologists and palaeoprimatologists alike. This thesis will endeavor to reveal the tremendous and varied insights the science of ecology can provide in relation to th ...
Migratory Waterbird Conservation at the Flyway Level: Distilling the
... achieving the effective long-term conservation of migratory waterbirds. Particular detail is provided regarding habitat conservation, since it is in this area that the provisions of the Agreement and the Convention experience the greatest overlap and in respect of which the most intricate analysis i ...
... achieving the effective long-term conservation of migratory waterbirds. Particular detail is provided regarding habitat conservation, since it is in this area that the provisions of the Agreement and the Convention experience the greatest overlap and in respect of which the most intricate analysis i ...
06
... recent years, this species has only been found along the Poamoho Trail. It is considered extremely rare and its present range is very restricted. One new snail was seen in this area during a hike on 26 February 2004. Another search was made 18-20 May 2004. A group of four NRS surveyed the areas sout ...
... recent years, this species has only been found along the Poamoho Trail. It is considered extremely rare and its present range is very restricted. One new snail was seen in this area during a hike on 26 February 2004. Another search was made 18-20 May 2004. A group of four NRS surveyed the areas sout ...
Feral goat management
... in all States and Territories except the Northern Territory and also survives on many Australian islands. It is most commonly found in the arid and semi-arid rangelands of New South Wales, Queensland, South Australia and Western Australia. There is evidence indicating that competition and land degra ...
... in all States and Territories except the Northern Territory and also survives on many Australian islands. It is most commonly found in the arid and semi-arid rangelands of New South Wales, Queensland, South Australia and Western Australia. There is evidence indicating that competition and land degra ...
Human-Wildlife Conflict Across Urbanization Gradients
... professor during my first tour of duty as an undergraduate. His passion for animal behavior was contagious and I fear I caught a terminal case! Dr. Rogers also shared that same infectious enthusiasm for animal behavior that made him a source of great inspiration as the advisor for my master’s resear ...
... professor during my first tour of duty as an undergraduate. His passion for animal behavior was contagious and I fear I caught a terminal case! Dr. Rogers also shared that same infectious enthusiasm for animal behavior that made him a source of great inspiration as the advisor for my master’s resear ...
Biodiversity action plan
This article is about a conservation biology topic. For other uses of BAP, see BAP (disambiguation).A biodiversity action plan (BAP) is an internationally recognized program addressing threatened species and habitats and is designed to protect and restore biological systems. The original impetus for these plans derives from the 1992 Convention on Biological Diversity (CBD). As of 2009, 191 countries have ratified the CBD, but only a fraction of these have developed substantive BAP documents.The principal elements of a BAP typically include: (a) preparing inventories of biological information for selected species or habitats; (b) assessing the conservation status of species within specified ecosystems; (c) creation of targets for conservation and restoration; and (d) establishing budgets, timelines and institutional partnerships for implementing the BAP.