DesertCymopterus
... population data in some years at Edwards Air Force Base. Population trends are difficult to assess due to the fluctuations caused by variation in rainfall year to year. Furthermore, little is known regarding the species’ reproduction, seed dispersal, and recruitment, and nothing is known about polli ...
... population data in some years at Edwards Air Force Base. Population trends are difficult to assess due to the fluctuations caused by variation in rainfall year to year. Furthermore, little is known regarding the species’ reproduction, seed dispersal, and recruitment, and nothing is known about polli ...
Swift Parrot Habitat and the Forestry Tasmania Three Year Wood
... colourful plumage, and in its burgeoning public profile. It is well known for its vulnerability to extinction, with the voracious appetite of the predatory Sugar glider and logging in critical forest areas making its summer breeding ground in Tasmania increasingly inhospitable. Millions of dollars, ...
... colourful plumage, and in its burgeoning public profile. It is well known for its vulnerability to extinction, with the voracious appetite of the predatory Sugar glider and logging in critical forest areas making its summer breeding ground in Tasmania increasingly inhospitable. Millions of dollars, ...
Food web structure affects the extinction risk of species in ecological
... 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 Ehrlich, 2002; Myers and Worm, 2003; Thomas et al., 2004) this highlights how urgent it is to learn more about what af ...
... 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 Ehrlich, 2002; Myers and Worm, 2003; Thomas et al., 2004) this highlights how urgent it is to learn more about what af ...
INSECTS ON PLANTS: Diversity of Herbivore Assemblages Revisited
... (Lawton et al. 1993) points to the importance of regional species pools for assemblage composition of local communities. Cornell & Kahn (1989) explored the insects on British trees for regularities in size or proportion of different guilds. Except for a positive correlation of sapsuckers and chewers ...
... (Lawton et al. 1993) points to the importance of regional species pools for assemblage composition of local communities. Cornell & Kahn (1989) explored the insects on British trees for regularities in size or proportion of different guilds. Except for a positive correlation of sapsuckers and chewers ...
Interspecific interaction strength influences population density more
... that in more complex networks, the role of interspecific interaction strength would be more important than that of carrying capacity in explaining population densities within a community because species received more effects from other species. Besides direct species interactions, impacts of indirect ...
... that in more complex networks, the role of interspecific interaction strength would be more important than that of carrying capacity in explaining population densities within a community because species received more effects from other species. Besides direct species interactions, impacts of indirect ...
hansen2011 - Montana State University
... application has involved the viability of species in and around protected areas. Protected areas are places where human activities are minimized to provide for the maintenance of natural ecological processes and native species (Possingham, 2006). They serve as places for the protection of nature, re ...
... application has involved the viability of species in and around protected areas. Protected areas are places where human activities are minimized to provide for the maintenance of natural ecological processes and native species (Possingham, 2006). They serve as places for the protection of nature, re ...
Moment Approximations of Individual-based Models
... product Ni N j ; in the absence of spatial structure they then take the value 1; aggregated (respectively regular) patterns are given by values greater (respectively less) than 1. To make the functions still easier to depict, we display them in a radial form; this entails integrating over the angle ...
... product Ni N j ; in the absence of spatial structure they then take the value 1; aggregated (respectively regular) patterns are given by values greater (respectively less) than 1. To make the functions still easier to depict, we display them in a radial form; this entails integrating over the angle ...
Biogeography - National Open University of Nigeria
... light conditions necessary for rapid seedling growth) Man, through his various activities often disturb natural ecosystems. In fact, there are few areas of the earth’s surface which have not been affected directly or indirectly by man’s activities. MODULE 1 UNIT 4 Fragile and Resilient (Durable) Eco ...
... light conditions necessary for rapid seedling growth) Man, through his various activities often disturb natural ecosystems. In fact, there are few areas of the earth’s surface which have not been affected directly or indirectly by man’s activities. MODULE 1 UNIT 4 Fragile and Resilient (Durable) Eco ...
Regulatory Strategy for the Designation of the Proposed Scott
... organizations, and the tourism and non-renewable energy sectors. The regulatory strategy proposes that the administration of activities such as fishing and marine safety and transportation within the boundaries of the NWA remain under the authority of Fisheries and Oceans Canada (DFO) and Transport ...
... organizations, and the tourism and non-renewable energy sectors. The regulatory strategy proposes that the administration of activities such as fishing and marine safety and transportation within the boundaries of the NWA remain under the authority of Fisheries and Oceans Canada (DFO) and Transport ...
Giving-up densities of foraging gerbils: the effect of interspecific
... Abstract. We studied the effect of a dominant species, Gerbillus pyramidum (Egyptian sand gerbil), on the patch use of its subordinate competitor, G. andersoni allenbyi (Allenby’s gerbil), to better understand interspecific competition between the two species. We used manipulated resource patches (see ...
... Abstract. We studied the effect of a dominant species, Gerbillus pyramidum (Egyptian sand gerbil), on the patch use of its subordinate competitor, G. andersoni allenbyi (Allenby’s gerbil), to better understand interspecific competition between the two species. We used manipulated resource patches (see ...
cws-RecoveryInfo2
... These guidelines are to assist in establishing recovery goals and objectives for individual species1 listed under the federal Species at Risk Act (SARA). The purpose is to promote the preparation of goals and objectives that (1) are ecologically appropriate, (2) are achievable and defensible, and (3 ...
... These guidelines are to assist in establishing recovery goals and objectives for individual species1 listed under the federal Species at Risk Act (SARA). The purpose is to promote the preparation of goals and objectives that (1) are ecologically appropriate, (2) are achievable and defensible, and (3 ...
RMIT Bundoora: Wetland Management Plan
... The study area is located within the RMIT campus at the corner of Plenty Road and Mc Kimmies Road, Bundoora (Figure 1), approximately 18 km north-east of the Melbourne central business district. The proposed lecture theatre development site is located within an area previously cleared of all remnant ...
... The study area is located within the RMIT campus at the corner of Plenty Road and Mc Kimmies Road, Bundoora (Figure 1), approximately 18 km north-east of the Melbourne central business district. The proposed lecture theatre development site is located within an area previously cleared of all remnant ...
Rodent Burrow Systems in North America
... exposed soils as a seed bed (Meadows 1991, Laundré and Reynolds 1993, Guo 1996, Cameron 2000, Simkin et al. 2004, Reichman 2007). In many situations, rodent burrows also provide a living place for numerous other species of animals, both vertebrates and invertebrates ...
... exposed soils as a seed bed (Meadows 1991, Laundré and Reynolds 1993, Guo 1996, Cameron 2000, Simkin et al. 2004, Reichman 2007). In many situations, rodent burrows also provide a living place for numerous other species of animals, both vertebrates and invertebrates ...
Genetic consequences of ecological reserve design guidelines: An
... (e.g., Scott et al. 1993) or landscape features (Poiani et al. 2000) in an area in order to have a high probability of representing the largest range of taxa, while efforts focused on species richness include at least one occurrence of each species of interest (e.g., Csuti et al. 1997). Although hab ...
... (e.g., Scott et al. 1993) or landscape features (Poiani et al. 2000) in an area in order to have a high probability of representing the largest range of taxa, while efforts focused on species richness include at least one occurrence of each species of interest (e.g., Csuti et al. 1997). Although hab ...
The Living World - Chapter 32 - McGraw Hill Higher Education
... characteristics of populations Survivorship is the percentage of an original population that survives to a given age Type I Mortality rises in postreproductive years Type II Mortality constant throughout life Type III Mortality low after establishment ...
... characteristics of populations Survivorship is the percentage of an original population that survives to a given age Type I Mortality rises in postreproductive years Type II Mortality constant throughout life Type III Mortality low after establishment ...
The Living World
... characteristics of populations Survivorship is the percentage of an original population that survives to a given age Type I Mortality rises in postreproductive years Type II Mortality constant throughout life Type III Mortality low after establishment ...
... characteristics of populations Survivorship is the percentage of an original population that survives to a given age Type I Mortality rises in postreproductive years Type II Mortality constant throughout life Type III Mortality low after establishment ...
Identifying refugia from climate change
... et al., 2007). These definitions of refugia could also be extended to include climate change impacts, for example by management actions that create thermally buffered environments such as nest boxes (Williams et al., 2008). While attempts have been made to distinguish between refugia and refuges (e. ...
... et al., 2007). These definitions of refugia could also be extended to include climate change impacts, for example by management actions that create thermally buffered environments such as nest boxes (Williams et al., 2008). While attempts have been made to distinguish between refugia and refuges (e. ...
DEVELOPING THE COST OF LARGE CARNIVORE CONFLICT
... African Painted Wild Dogs) exist on privately managed lands, outside of official protection. ...
... African Painted Wild Dogs) exist on privately managed lands, outside of official protection. ...
Full-Text PDF
... Scandinavia would be classified either as “populated rainfed cropland” or as “populated forest”. Southern Scandinavia belongs to the nemoral (deciduous forest) zone in the south and the Cultural landscapes in northern Scandinavia, for example transhumance systems with summer transitional boreo-nemor ...
... Scandinavia would be classified either as “populated rainfed cropland” or as “populated forest”. Southern Scandinavia belongs to the nemoral (deciduous forest) zone in the south and the Cultural landscapes in northern Scandinavia, for example transhumance systems with summer transitional boreo-nemor ...
An African grassland responds similarly to long
... processes in the long-term, because traits of the initial dominants may be unrelated to the long-term outcome of competition [2]. Such priority effects can arise from a variety of factors, including changes in sward structure, litter levels and light availability [5]. One of the ways to minimize pri ...
... processes in the long-term, because traits of the initial dominants may be unrelated to the long-term outcome of competition [2]. Such priority effects can arise from a variety of factors, including changes in sward structure, litter levels and light availability [5]. One of the ways to minimize pri ...
big questions about small primates
... M. murinus, a long-eared gray animal from the southern and western regions of Madagascar, and M. rufus, a short-eared reddish animal from the east. Martin (1972), in particular, made note of the differing habitats and ecological constraints defining the two species, with M. murinus inhabiting dry de ...
... M. murinus, a long-eared gray animal from the southern and western regions of Madagascar, and M. rufus, a short-eared reddish animal from the east. Martin (1972), in particular, made note of the differing habitats and ecological constraints defining the two species, with M. murinus inhabiting dry de ...
Conservation strategy for the Mekong giant catfish
... Conservation strategy: Fishing. Fishing mortality on the recruited population should be maintained at very low levels. For the next two decades, catches should not exceed 10 mature fish per year in order to allow some population recovery. The legal mechanisms for harvest regulation are in place in C ...
... Conservation strategy: Fishing. Fishing mortality on the recruited population should be maintained at very low levels. For the next two decades, catches should not exceed 10 mature fish per year in order to allow some population recovery. The legal mechanisms for harvest regulation are in place in C ...
Network structural properties mediate the stability of mutualistic
... Abstract Key advances are being made on the structures of predator–prey food webs and competitive communities that enhance their stability, but little attention has been given to such complexity–stability relationships for mutualistic communities. We show, by way of theoretical analyses with empiric ...
... Abstract Key advances are being made on the structures of predator–prey food webs and competitive communities that enhance their stability, but little attention has been given to such complexity–stability relationships for mutualistic communities. We show, by way of theoretical analyses with empiric ...
Advice to the Minister for Sustainability, Environment, Water
... natural geographic distribution. 1.2 Description of the process The introduction of non-native or native fish outside their natural ranges is one of the major conservation issues in inland aquatic environments. Regional differences in fish communities are decreasing as non-native species become esta ...
... natural geographic distribution. 1.2 Description of the process The introduction of non-native or native fish outside their natural ranges is one of the major conservation issues in inland aquatic environments. Regional differences in fish communities are decreasing as non-native species become esta ...
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.