By: David R.W. Bruinsma A Thesis
... Table 1. Site names, site codes, owners, and land uses of tall-grass prairie study sites used to evaluate responses of grassland songbird abundance and richness to habitat structure at multiple spatial scales and artificial conspecific location cues in southern Manitoba, 2010-2011................... ...
... Table 1. Site names, site codes, owners, and land uses of tall-grass prairie study sites used to evaluate responses of grassland songbird abundance and richness to habitat structure at multiple spatial scales and artificial conspecific location cues in southern Manitoba, 2010-2011................... ...
the coloring calendar now
... Where found: Northeastern India, Nepal, and Southeast Asia Current status: Critically Endangered Population in the wild: Less than 10,000 Population trend: Declining Conservation concerns: Populations declined considerably during the 1990s and 2000s. Declines in India may be due to use of the drug d ...
... Where found: Northeastern India, Nepal, and Southeast Asia Current status: Critically Endangered Population in the wild: Less than 10,000 Population trend: Declining Conservation concerns: Populations declined considerably during the 1990s and 2000s. Declines in India may be due to use of the drug d ...
Forests Too Deer: Edge Effects in Northern Wisconsin
... due to extensive favorable habitat and protective hunting laws (Swift 1946; Dahlberg & Guettinger 1956; McCaffery 1986). During the last 25 years, densities in northern Wisconsin have ranged from 5 to 12/kM2(McCaffery 1986) and are now estimated at 2 to 9 deer/kM2 in the northern units of Wisconsin' ...
... due to extensive favorable habitat and protective hunting laws (Swift 1946; Dahlberg & Guettinger 1956; McCaffery 1986). During the last 25 years, densities in northern Wisconsin have ranged from 5 to 12/kM2(McCaffery 1986) and are now estimated at 2 to 9 deer/kM2 in the northern units of Wisconsin' ...
cattle ranching and biodiversity conservation as allies in south
... security services, since poachers’ access is diminished by the constant surveillance of ranch boundaries by private guards. Because of this protection system, many ranches today support larger populations of wildlife than those found in national parks, where animals have been poached and systematica ...
... security services, since poachers’ access is diminished by the constant surveillance of ranch boundaries by private guards. Because of this protection system, many ranches today support larger populations of wildlife than those found in national parks, where animals have been poached and systematica ...
Bats of the South Okanagan-Similkameen The Pallid Bat
... Pallid Bats are late feeders, leaving day roosts about 45 minutes after sunset. They feed on moths, beetles and other bugs and can eat up to 100% of their body weight each evening. Pallid bats usually glean prey from the ground and the foliage of trees and shrubs and occasionally pursue insects in t ...
... Pallid Bats are late feeders, leaving day roosts about 45 minutes after sunset. They feed on moths, beetles and other bugs and can eat up to 100% of their body weight each evening. Pallid bats usually glean prey from the ground and the foliage of trees and shrubs and occasionally pursue insects in t ...
Bringing El TigrE HomE - Defenders of Wildlife
... the United States—and one in Jalisco. Jaguars are relatively numerous in these core areas and, as long as poaching and habitat loss can be controlled, relatively secure (FWS 2016a). So how can the United States re-establish a population of jaguars? ESA protections and critical habitat designation ca ...
... the United States—and one in Jalisco. Jaguars are relatively numerous in these core areas and, as long as poaching and habitat loss can be controlled, relatively secure (FWS 2016a). So how can the United States re-establish a population of jaguars? ESA protections and critical habitat designation ca ...
Journal of Experimental Marine Biology and Ecology
... provided quantitative assessments. For example, we are only aware of a single marine paper to compare published disparate impact studies in a quantitative framework (Thomsen et al., 2009) and this study quantified direction and magnitude of seaweed-impacts, rather than addressing the context and thei ...
... provided quantitative assessments. For example, we are only aware of a single marine paper to compare published disparate impact studies in a quantitative framework (Thomsen et al., 2009) and this study quantified direction and magnitude of seaweed-impacts, rather than addressing the context and thei ...
Development of a subtidal epifaunal community at the island of
... in this study. For the latter system, where biological interactions have a relatively higher importance, less is known about whether or not real succession in the c!assicaI sense (Odum, 1969) can exist, and if there are any dominant competitors which are successful in the absence of disturbances. Su ...
... in this study. For the latter system, where biological interactions have a relatively higher importance, less is known about whether or not real succession in the c!assicaI sense (Odum, 1969) can exist, and if there are any dominant competitors which are successful in the absence of disturbances. Su ...
Faculty of Life and Environmental Sciences University of
... Moral et al. 2005). For many plant species, this initial long-distance dispersal can occur using an animal vector. In areas with little seed pool, the presence or absence of this dispersal mechanism and its role as an ecological filter could significantly influence the species composition and chara ...
... Moral et al. 2005). For many plant species, this initial long-distance dispersal can occur using an animal vector. In areas with little seed pool, the presence or absence of this dispersal mechanism and its role as an ecological filter could significantly influence the species composition and chara ...
Poster Session
... Circle hooks have rapidly become popular among recreational anglers based largely on the assumption that their use aids in the conservation of fisheries resources by reducing gut hooking, and hence, mortality. We surveyed literature databases and also used questionnaires to solicit information from ...
... Circle hooks have rapidly become popular among recreational anglers based largely on the assumption that their use aids in the conservation of fisheries resources by reducing gut hooking, and hence, mortality. We surveyed literature databases and also used questionnaires to solicit information from ...
Carnivore conservation: shifting the paradigm from control to
... 23 prominent ecologists to conclude that loss of apex predators was a major driver of destabilization and collapse of their native ecosystems, leading to pandemics, irruptions of invasive species, and lost ecosystem services (Estes et al. 2011). Aldo Leopold was one of the 1st biologists to argue th ...
... 23 prominent ecologists to conclude that loss of apex predators was a major driver of destabilization and collapse of their native ecosystems, leading to pandemics, irruptions of invasive species, and lost ecosystem services (Estes et al. 2011). Aldo Leopold was one of the 1st biologists to argue th ...
Composition, Function, and Structure of Old-Growth Douglas
... Introduction In the Pacific Northwest, the term “old-growth forests” typically connotes stands 200 to over 1000 years of age that contain large, coniferous trees, especially Douglas-fir. Such forests once covered millions of acres, but have been drastically reduced by logging and other forest cleari ...
... Introduction In the Pacific Northwest, the term “old-growth forests” typically connotes stands 200 to over 1000 years of age that contain large, coniferous trees, especially Douglas-fir. Such forests once covered millions of acres, but have been drastically reduced by logging and other forest cleari ...
A distance-based framework for measuring functional diversity from
... many situations, other measures may be preferred for particular applications. For example, other dissimilarity measures can accommodate different types of variables and missing values (Estabrook and Rogers 1966, Pavoine et al. 2009). Such a distance-based framework is not new for the analysis of eco ...
... many situations, other measures may be preferred for particular applications. For example, other dissimilarity measures can accommodate different types of variables and missing values (Estabrook and Rogers 1966, Pavoine et al. 2009). Such a distance-based framework is not new for the analysis of eco ...
determination of food chain length using the hyperparasitoid gelis
... hare. In a reverse case, where the Gray wolves would have to feed on larger prey, (e.g. moose, caribou), they would risk their life during hunting (U.S. Fish and Wild life Service 2006). (iii) Energy transfer efficiency: each species of the trophic chain has to be efficient enough to transfer the av ...
... hare. In a reverse case, where the Gray wolves would have to feed on larger prey, (e.g. moose, caribou), they would risk their life during hunting (U.S. Fish and Wild life Service 2006). (iii) Energy transfer efficiency: each species of the trophic chain has to be efficient enough to transfer the av ...
Learning Objectives
... 6. Describe the economic importance of forest-related industries to provincial, national and international economies 7. Explain how environmental concerns such as water quality, habitat, recreation and aesthetics are incorporated into forest management D. Understand and describe practices involved i ...
... 6. Describe the economic importance of forest-related industries to provincial, national and international economies 7. Explain how environmental concerns such as water quality, habitat, recreation and aesthetics are incorporated into forest management D. Understand and describe practices involved i ...
Invariant size–frequency distributions along a latitudinal gradient in
... species, almost complete taxonomic turnover occurs between the Arctic and Panamic Provinces with only four species ranging throughout; (iv) the family-level composition of the modal size class varies considerably with latitude (Fig. 3), indicating further that these patterns also are not shaped by h ...
... species, almost complete taxonomic turnover occurs between the Arctic and Panamic Provinces with only four species ranging throughout; (iv) the family-level composition of the modal size class varies considerably with latitude (Fig. 3), indicating further that these patterns also are not shaped by h ...
Spatiotemporal variation in functional and taxonomic organization of
... utilized a scheme proposed by Matthews (1998) that expanded traditional trophic groups to include the manner in which fishes affect ecosystem level processes by examining what fish eat, where they find food, and how they consume resources in their assessment of scale dependence in niche partitioning ...
... utilized a scheme proposed by Matthews (1998) that expanded traditional trophic groups to include the manner in which fishes affect ecosystem level processes by examining what fish eat, where they find food, and how they consume resources in their assessment of scale dependence in niche partitioning ...
13.1 Ecologists Study Relationships / 13.2 Biotic & Abiotic Organism
... on the small mammals, amphibians, insects, and fruit found in this habitat. Red foxes are active at night. They provide blood for blackflies and mosquitoes, and are host to numerous diseases. The scraps, or carrion, left behind after a fox's meal provide food for many small scavengers and decomposer ...
... on the small mammals, amphibians, insects, and fruit found in this habitat. Red foxes are active at night. They provide blood for blackflies and mosquitoes, and are host to numerous diseases. The scraps, or carrion, left behind after a fox's meal provide food for many small scavengers and decomposer ...
the Sooty Grouse report
... and no firs. We concluded we had probably dropped habitat had been degraded over recent decades. Some below the zone of likely Sooty Grouse habitat. After large fir trees had been selectively harvested from most lunch we drove to the highest point on Cordon Ridge, stands we visited. Non-native cattl ...
... and no firs. We concluded we had probably dropped habitat had been degraded over recent decades. Some below the zone of likely Sooty Grouse habitat. After large fir trees had been selectively harvested from most lunch we drove to the highest point on Cordon Ridge, stands we visited. Non-native cattl ...
click here for pdf. - The Rewilding Institute
... Population Structure and Viability. A viable wolf population requires an area of some minimum size, adequate prey, and security from excessive human exploitation (Fritts and Carbyn 1995; Fuller 1997; Haight et al. 1998). These three factors could be considered the “critical elements” for wolf popula ...
... Population Structure and Viability. A viable wolf population requires an area of some minimum size, adequate prey, and security from excessive human exploitation (Fritts and Carbyn 1995; Fuller 1997; Haight et al. 1998). These three factors could be considered the “critical elements” for wolf popula ...
PDF file - Pan-American Journal of Aquatic
... Biological invasions are considered the second most important cause of biodiversity loss, after habitat fragmentation (Vitousek et al. 1997, Clavero & García-Berthou 2005, but see Didham et al. 2005). These invasions are particularly harmful in island ecosystems, where many species have evolved unde ...
... Biological invasions are considered the second most important cause of biodiversity loss, after habitat fragmentation (Vitousek et al. 1997, Clavero & García-Berthou 2005, but see Didham et al. 2005). These invasions are particularly harmful in island ecosystems, where many species have evolved unde ...
Do aquatic macrophytes co-occur randomly? An analysis of null
... Paraná lagoons, where water transparency is higher, but not in Ivinheima lagoons, where the water is more turbid). On the other hand, facilitation could also be erroneously inferred by patterns of aggregation found in the entire lagoons, since two species could co-occur in the same lagoon more ofte ...
... Paraná lagoons, where water transparency is higher, but not in Ivinheima lagoons, where the water is more turbid). On the other hand, facilitation could also be erroneously inferred by patterns of aggregation found in the entire lagoons, since two species could co-occur in the same lagoon more ofte ...
Document
... three species are the common wombat, northern hairy nosed wombat, and the southern hairy nosed wombat. The northern hairy wombat is the most highly endangered of them all, with approximately 163 left in the world, a 50 wombat increase since 2003. This species is officially critically endangered acco ...
... three species are the common wombat, northern hairy nosed wombat, and the southern hairy nosed wombat. The northern hairy wombat is the most highly endangered of them all, with approximately 163 left in the world, a 50 wombat increase since 2003. This species is officially critically endangered acco ...
Disturbances in deciduous temperate forest ecosystems of the
... Ecosystems are dynamic entities, variable across both space and time, and these patterns of variability in ecosystem development are modulated by events or processes known as ‘‘disturbances’’. According to the most recent definition (van Andel and Aronson 2012) ‘‘a disturbance factor causes a change ...
... Ecosystems are dynamic entities, variable across both space and time, and these patterns of variability in ecosystem development are modulated by events or processes known as ‘‘disturbances’’. According to the most recent definition (van Andel and Aronson 2012) ‘‘a disturbance factor causes a change ...
Beyond demography and delisting: ecological recovery for
... issues prior to the reintroduction of wolves into Yellowstone National Park. From a heuristic perspective, it seems appropriate to ask why ecological criteria were not more explicitly incorporated in recovery plans for these types of important species? One obvious reason is based on the conventional ...
... issues prior to the reintroduction of wolves into Yellowstone National Park. From a heuristic perspective, it seems appropriate to ask why ecological criteria were not more explicitly incorporated in recovery plans for these types of important species? One obvious reason is based on the conventional ...
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.