Intraspecific adoption and foster feeding of fledglings in the North
... of the adopted fledglings had a higher reproductive output than the general population. Although the frequency of adoption/foster-feeding was very low, the findings suggest that both the original parents and the fledglings may have a fitness payoff from this behaviour with the fledgling most likely ...
... of the adopted fledglings had a higher reproductive output than the general population. Although the frequency of adoption/foster-feeding was very low, the findings suggest that both the original parents and the fledglings may have a fitness payoff from this behaviour with the fledgling most likely ...
The vegetation of Omusati and Oshana Regions, central
... Supervisor: Prof. Dr. G.J. Bredenkamp Submitted in partial fulfillment of the requirements for the degree MAGISTER SCIENTIAE in the Department of Plant Science, Faculty of Natural and Agricultural Sciences University of Pretoria December 2010 Central-northern Namibia is home to an approximate 43% of ...
... Supervisor: Prof. Dr. G.J. Bredenkamp Submitted in partial fulfillment of the requirements for the degree MAGISTER SCIENTIAE in the Department of Plant Science, Faculty of Natural and Agricultural Sciences University of Pretoria December 2010 Central-northern Namibia is home to an approximate 43% of ...
The vegetation of Omusati and Oshana Regions, central- northern Namibia by
... Supervisor: Prof. Dr. G.J. Bredenkamp Submitted in partial fulfillment of the requirements for the degree MAGISTER SCIENTIAE in the Department of Plant Science, Faculty of Natural and Agricultural Sciences University of Pretoria December 2010 Central-northern Namibia is home to an approximate 43% of ...
... Supervisor: Prof. Dr. G.J. Bredenkamp Submitted in partial fulfillment of the requirements for the degree MAGISTER SCIENTIAE in the Department of Plant Science, Faculty of Natural and Agricultural Sciences University of Pretoria December 2010 Central-northern Namibia is home to an approximate 43% of ...
10.0 eelgrass - Humboldt Bay Harbor District
... considered in a management approach based on the Humboldt Bay ecosystem. For fishery management purposes eelgrass meadows have, in addition to their role in sustaining the ecological dynamics of the estuary, also been identified as a significant habitat element for fish. Eelgrass occurs in two conte ...
... considered in a management approach based on the Humboldt Bay ecosystem. For fishery management purposes eelgrass meadows have, in addition to their role in sustaining the ecological dynamics of the estuary, also been identified as a significant habitat element for fish. Eelgrass occurs in two conte ...
Part 3 Designing and Implementing Ecosystem Connectivity in the
... important contributions to human survival. For example, connected ecosystems enable pollination by providing habitat for insects and birds. Without these pollinators, the survival and reproduction of many plants including agricultural crops would be threatened. Without connections, pollinators could ...
... important contributions to human survival. For example, connected ecosystems enable pollination by providing habitat for insects and birds. Without these pollinators, the survival and reproduction of many plants including agricultural crops would be threatened. Without connections, pollinators could ...
Recovery Strategy for the Butler`s Gartersnake (Thamnophis butleri
... Yes. There are currently 27 to 38 extant 3 locations 4 of Butler’s Gartersnake in Canada, which occur within four geographic regions. The species is frequently locally abundant where it does occur and may be the most common snake species at some locations. Most local subpopulations are small, though ...
... Yes. There are currently 27 to 38 extant 3 locations 4 of Butler’s Gartersnake in Canada, which occur within four geographic regions. The species is frequently locally abundant where it does occur and may be the most common snake species at some locations. Most local subpopulations are small, though ...
Invasive non-native plants retain native mammal communities in
... Biological invasions are a major threat to native ecosystems globally, yet in some landscapes they can also have important positive effects on native biodiversity. For example, invasive non-native plants have the potential to act as ecological engineers in novel ecosystems by ‘creating’ habitat wher ...
... Biological invasions are a major threat to native ecosystems globally, yet in some landscapes they can also have important positive effects on native biodiversity. For example, invasive non-native plants have the potential to act as ecological engineers in novel ecosystems by ‘creating’ habitat wher ...
Management and Restoration Discussion
... -General consensus that it should be what it was which seems to be 10km2 using the most recent data. However, you should not to seem like you are trying to reduce area to get out of original mandate. Question: Can we predict if Lough would ever recover without intervention under current management - ...
... -General consensus that it should be what it was which seems to be 10km2 using the most recent data. However, you should not to seem like you are trying to reduce area to get out of original mandate. Question: Can we predict if Lough would ever recover without intervention under current management - ...
Global Biodiversity Outlook 3
... The Bali Starling (Leucopsar rothschildi) is a critically endangered species endemic to the island of Bali, Indonesia. It suffered a drastic decline in population and range during the 20th century, due mainly to illegal poaching. In 1990 only around 15 birds were thought to survive in the wild. Cons ...
... The Bali Starling (Leucopsar rothschildi) is a critically endangered species endemic to the island of Bali, Indonesia. It suffered a drastic decline in population and range during the 20th century, due mainly to illegal poaching. In 1990 only around 15 birds were thought to survive in the wild. Cons ...
Recovery, Conservation, and Survival under the Endangered
... range,"'" and the latter is "any species which is likely to become an endangered species within the foreseeable future throughout all or a significant portion of its range."' 3 Consequently, a recovered species is one that is not threatened, i.e., not likely to become an endangered species in the fo ...
... range,"'" and the latter is "any species which is likely to become an endangered species within the foreseeable future throughout all or a significant portion of its range."' 3 Consequently, a recovered species is one that is not threatened, i.e., not likely to become an endangered species in the fo ...
Bringing the Hutchinsonian niche into the 21st century
... may differ, sometimes greatly, from where it can persist, if at low densities there is sufficiently strong positive density dependence, so that growth rates increase with population size. Courchamp et al. (34) argue that such Allee effects, the various reasons population growth rate can increase wit ...
... may differ, sometimes greatly, from where it can persist, if at low densities there is sufficiently strong positive density dependence, so that growth rates increase with population size. Courchamp et al. (34) argue that such Allee effects, the various reasons population growth rate can increase wit ...
Mechanistic Approaches to Community Ecology
... reductionist approaches have never worked in science, and they will not in community ecology either. No matter how cathartic, it is seldom wise to devote most of an article to rebutting one's grant reviewers. However, these two criticisms provide such excellent departure points for discussing the wh ...
... reductionist approaches have never worked in science, and they will not in community ecology either. No matter how cathartic, it is seldom wise to devote most of an article to rebutting one's grant reviewers. However, these two criticisms provide such excellent departure points for discussing the wh ...
Fallow and Magrath 2010
... fairy-wrens (Results) encode a higher degree of danger through a greater number of elements in a call, so we constructed alarm calls that varied in the number of elements. Each set of playbacks presented to a group included nine treatments: one-, two-, three-, and four-element fairy-wren calls; one- ...
... fairy-wrens (Results) encode a higher degree of danger through a greater number of elements in a call, so we constructed alarm calls that varied in the number of elements. Each set of playbacks presented to a group included nine treatments: one-, two-, three-, and four-element fairy-wren calls; one- ...
Newell's shearwater population modeling for Habitat Conservation
... of 2,000 and 4,000 birds over 25 years, respectively, compared to no management undertaken. The benefits from these actions have clear potential to offset incidental take proposed in HCP planning. A recovered (i.e. stable, self‐sustaining) Newell’s shearwater population in 25 years ...
... of 2,000 and 4,000 birds over 25 years, respectively, compared to no management undertaken. The benefits from these actions have clear potential to offset incidental take proposed in HCP planning. A recovered (i.e. stable, self‐sustaining) Newell’s shearwater population in 25 years ...
Morphological and genetic evaluation of the hydrocoral Millepora
... Millepora highlight the high degree of skeletal polymorphism encountered in the genus. Two previous studies (Martínez-Estalella 1982; de Weerdt 1984) concluded that species distinctions were uncertain due to the high morphological variability among the colonies within each taxon and the overlap of s ...
... Millepora highlight the high degree of skeletal polymorphism encountered in the genus. Two previous studies (Martínez-Estalella 1982; de Weerdt 1984) concluded that species distinctions were uncertain due to the high morphological variability among the colonies within each taxon and the overlap of s ...
A Biological Review of Australian Marine Turtles
... This review of the locally endemic flatback turtle provides the first comprehensive collation of biological data for the species. While peer reviewed scientific publications are the most significant source of information for the species, there is a large body of additional information available from ...
... This review of the locally endemic flatback turtle provides the first comprehensive collation of biological data for the species. While peer reviewed scientific publications are the most significant source of information for the species, there is a large body of additional information available from ...
The complexity of amphibian population declines
... complex interrelationships involving multiple factors and indirect effects; (2) efforts focused solely at the population level may fail to detect effects at the community level following amphibian losses; (3) modern selection pressures, especially those that are human induced, may occur too quickly ...
... complex interrelationships involving multiple factors and indirect effects; (2) efforts focused solely at the population level may fail to detect effects at the community level following amphibian losses; (3) modern selection pressures, especially those that are human induced, may occur too quickly ...
The Importance of Long-Distance Dispersal in Biodiversity
... conservation needs. Finally, we briefly explore how information on ...
... conservation needs. Finally, we briefly explore how information on ...
THE INFLUENCE OF THE AFRICAN ELEPHANT (LOXODONTA
... sexually dimorphic species, should differ between sexes. Due to the higher mass specific metabolic requirements that result from their smaller body size and reproductive demands, family units were predicted to be more selective at plant species and plant part level than bulls. No sexrelated feeding ...
... sexually dimorphic species, should differ between sexes. Due to the higher mass specific metabolic requirements that result from their smaller body size and reproductive demands, family units were predicted to be more selective at plant species and plant part level than bulls. No sexrelated feeding ...
Linking marine fisheries species to biogenic habitats in New Zealand
... Morrison, M.A.; Jones, E.; Consalvey, M.; Berkenbusch, K. (2014). Linking marine fisheries species to biogenic habitats in New Zealand: a review and synthesis of knowledge. New Zealand Aquatic Environment and Biodiversity Report No. 130. 156 p. Fisheries research and management has traditionally bee ...
... Morrison, M.A.; Jones, E.; Consalvey, M.; Berkenbusch, K. (2014). Linking marine fisheries species to biogenic habitats in New Zealand: a review and synthesis of knowledge. New Zealand Aquatic Environment and Biodiversity Report No. 130. 156 p. Fisheries research and management has traditionally bee ...
ABSTRACT Title of Document:
... family, friends, animals, labmates and therapist are largely responsible for the completion of this work; without their support, this work would not have been possible. My grandmothers, Nanny and Grandma, have looked upon me from Heaven and remain a source of comfort, warmth, and solace. My grandfat ...
... family, friends, animals, labmates and therapist are largely responsible for the completion of this work; without their support, this work would not have been possible. My grandmothers, Nanny and Grandma, have looked upon me from Heaven and remain a source of comfort, warmth, and solace. My grandfat ...
Western Chorus Frog (Pseudacris triseriata)
... It takes approximately 2 months for tadpoles to change into froglets, which grow very quickly and are mature at the end of the summer. Mortality is high at all life stages and survival of a population depends on the recruitment of new individuals through reproduction and/or immigration each year. Th ...
... It takes approximately 2 months for tadpoles to change into froglets, which grow very quickly and are mature at the end of the summer. Mortality is high at all life stages and survival of a population depends on the recruitment of new individuals through reproduction and/or immigration each year. Th ...
Asymmetrical food web responses in trophic
... terrestrial environments (Dobson et al. 2006). However, emerging empirical evidence from impacted aquatic and terrestrial systems exist to support increased species and biomass losses at higher trophic levels (Dodson et al. 2000; Jackson et al. 2001; Vinebrooke et al. 2003; Voigt et al. 2003). These ...
... terrestrial environments (Dobson et al. 2006). However, emerging empirical evidence from impacted aquatic and terrestrial systems exist to support increased species and biomass losses at higher trophic levels (Dodson et al. 2000; Jackson et al. 2001; Vinebrooke et al. 2003; Voigt et al. 2003). These ...
Halting the illegal trade of cites species from world heritage
... WWF is one of the world’s largest and most experienced independent conservation organizations, with over 5 million supporters and a global network active in more than 100 countries. WWF’s mission is to stop the degradation of the planet’s natural environment and to build a future in which humans liv ...
... WWF is one of the world’s largest and most experienced independent conservation organizations, with over 5 million supporters and a global network active in more than 100 countries. WWF’s mission is to stop the degradation of the planet’s natural environment and to build a future in which humans liv ...
Checkerspot Stewardship Guide HSP 2014 (3.4 Megabytes – pdf)
... • Introductions of new infectious diseases and parasites, usually unintentional, from contact with domestic plants and animals or species that have invaded wild areas likely have been and continue to be additional stress factors for previous ly unexposed species. • Habitat-enhancement activities may ...
... • Introductions of new infectious diseases and parasites, usually unintentional, from contact with domestic plants and animals or species that have invaded wild areas likely have been and continue to be additional stress factors for previous ly unexposed species. • Habitat-enhancement activities may ...
Island restoration
The ecological restoration of islands, or island restoration, is the application of the principles of ecological restoration to islands and island groups. Islands, due to their isolation, are home to many of the world's endemic species, as well as important breeding grounds for seabirds and some marine mammals. Their ecosystems are also very vulnerable to human disturbance and particularly to introduced species, due to their small size. Island groups such as New Zealand and Hawaii have undergone substantial extinctions and losses of habitat. Since the 1950s several organisations and government agencies around the world have worked to restore islands to their original states; New Zealand has used them to hold natural populations of species that would otherwise be unable to survive in the wild. The principal components of island restoration are the removal of introduced species and the reintroduction of native species.