Lower East Sydenham FC - St. Clair Region Conservation Authority
... This report card summarizes surface water quality and forest condition in the Lower East Sydenham watershed within the St. Clair Region Conservation Authority jurisdiction from 2001 to 2010. The summary is intended to provide citizens, community groups, municipalities, industries and agencies with i ...
... This report card summarizes surface water quality and forest condition in the Lower East Sydenham watershed within the St. Clair Region Conservation Authority jurisdiction from 2001 to 2010. The summary is intended to provide citizens, community groups, municipalities, industries and agencies with i ...
Ramsar site management plans -- Australia, Towra Point, NSW
... the information gained by research, and to prohibit the removal or trade of the listed species or their eggs. The agreements do not list specific sites for protection. ...
... the information gained by research, and to prohibit the removal or trade of the listed species or their eggs. The agreements do not list specific sites for protection. ...
Axis porcinus, Hog Deer
... Hog Deer remained in Cambodia, where subpopulations two to three decades ago may well have been in the thousands or even into the low tens of thousands, based on general perceptions of large-mammal abundance and relative wealth of suitable habitat (R.J. Timmins pers. comm. 2008), and Myanmar, where ...
... Hog Deer remained in Cambodia, where subpopulations two to three decades ago may well have been in the thousands or even into the low tens of thousands, based on general perceptions of large-mammal abundance and relative wealth of suitable habitat (R.J. Timmins pers. comm. 2008), and Myanmar, where ...
invasive species - the National Sea Grant Library
... of organisms. They typically cause extirpation or losses at the local level, but they possess the potential to cause extinction or losses at the global level. Extinction becomes a very real possibility for endangered, threatened or rare species. Invasive species typically affect native populations t ...
... of organisms. They typically cause extirpation or losses at the local level, but they possess the potential to cause extinction or losses at the global level. Extinction becomes a very real possibility for endangered, threatened or rare species. Invasive species typically affect native populations t ...
Conserving the Forest Interior
... Experts believe that formerly continuous forested landscapes cannot sustain the natural diversity of plants and animals unless at least 25 to 30 per cent of the land is in forest or other natural cover. Fragmented woodlands — “islands of habitat,” as they are called — may simply be too small for som ...
... Experts believe that formerly continuous forested landscapes cannot sustain the natural diversity of plants and animals unless at least 25 to 30 per cent of the land is in forest or other natural cover. Fragmented woodlands — “islands of habitat,” as they are called — may simply be too small for som ...
The Structure of Ecosystems
... Other abiotic factors that affect land organisms include the physical structure, pH, and mineral composition of soil. These factors limit the distribution of many plant species and the animals that feed on them. For example, many forest soils contain only small amounts of the nitrogen compounds and ...
... Other abiotic factors that affect land organisms include the physical structure, pH, and mineral composition of soil. These factors limit the distribution of many plant species and the animals that feed on them. For example, many forest soils contain only small amounts of the nitrogen compounds and ...
A species definition for the Modern Synthesis
... so often pass by an insensible gradation'. Wallace is first saying that it is practically impossible to make all the necessary crosses to test genetic compatibility. Second, since theories of speciation involve a reduction in ability or tendency to interbreed, species cannot themselves be defined by ...
... so often pass by an insensible gradation'. Wallace is first saying that it is practically impossible to make all the necessary crosses to test genetic compatibility. Second, since theories of speciation involve a reduction in ability or tendency to interbreed, species cannot themselves be defined by ...
Shorebird Projects in Coastal Oregon and Washington
... restore tide flat areas invaded by Spartina and control the spread of Spartina to other areas. In 1994, Spartina alterniflora was noted as a potential problem in Willapa Bay. By 2002, the affected area had nearly tripled, covering two of the most important mudflats in the bay for shorebirds. Spartin ...
... restore tide flat areas invaded by Spartina and control the spread of Spartina to other areas. In 1994, Spartina alterniflora was noted as a potential problem in Willapa Bay. By 2002, the affected area had nearly tripled, covering two of the most important mudflats in the bay for shorebirds. Spartin ...
How the proposed reintroduction of Eurasian lynx to Britain
... forest-dwelling carnivore that would have significant interactions with human activities (Table 1). Aberdeenshire, Argyll and Bute, Cumbria, Norfolk, and Northumberland were announced as prospective areas for pilot releases (Figure 1). The Trust’s proposal document (Eagle, 2015) reported the expecta ...
... forest-dwelling carnivore that would have significant interactions with human activities (Table 1). Aberdeenshire, Argyll and Bute, Cumbria, Norfolk, and Northumberland were announced as prospective areas for pilot releases (Figure 1). The Trust’s proposal document (Eagle, 2015) reported the expecta ...
table - cabi-isc
... CROPS/OTHER PLANTS AFFECTED For invasive plants that are commonly associated with, and impact on, the growth or production of other plants (e.g. crop weeds), please include details below. Where possible, please enter individual species in the first column. In the three ‘affected’ columns, please ent ...
... CROPS/OTHER PLANTS AFFECTED For invasive plants that are commonly associated with, and impact on, the growth or production of other plants (e.g. crop weeds), please include details below. Where possible, please enter individual species in the first column. In the three ‘affected’ columns, please ent ...
A complex adaptive systems approach
... growth, i.e., zero net growth isoclines) such that species with this trait would come to dominate the community in a stable environment. In many experiments an initial sampling effect was evident because of the way the experiment was set up, but over time as competition takes place complementarity e ...
... growth, i.e., zero net growth isoclines) such that species with this trait would come to dominate the community in a stable environment. In many experiments an initial sampling effect was evident because of the way the experiment was set up, but over time as competition takes place complementarity e ...
Tidal marsh song sparrows - Baylands Ecosystem Habitat Goals
... Impacts of climate change on survival of first-year birds and adults is not known. Small changes in survival rates can have substantial consequences for population growth (or decline) and population resilience. Therefore an important gap to address is information on environmental influences on survi ...
... Impacts of climate change on survival of first-year birds and adults is not known. Small changes in survival rates can have substantial consequences for population growth (or decline) and population resilience. Therefore an important gap to address is information on environmental influences on survi ...
Teacher Resource Guide
... teacher background: Endangered Animals A species is considered endangered when there are so few of its kind left that they run the risk of extinction. Both plants and animals can be endangered. There are many factors that can lead to an animal becoming endangered, including both natural and human i ...
... teacher background: Endangered Animals A species is considered endangered when there are so few of its kind left that they run the risk of extinction. Both plants and animals can be endangered. There are many factors that can lead to an animal becoming endangered, including both natural and human i ...
Notes: This nautilus lives in waters at a depth of 600
... • Some scenarios put forth to explain the extinctions include – (1) a meteorite impact such as occurred at the end of the Cretaceous Period – (2) a widespread marine regression resulting from glacial conditions, ...
... • Some scenarios put forth to explain the extinctions include – (1) a meteorite impact such as occurred at the end of the Cretaceous Period – (2) a widespread marine regression resulting from glacial conditions, ...
The importance of niches for the maintenance of species diversity
... rare than when they are common (Fig. 1). Our approach focused on experimentally assembled communities of annual plants on serpentine soils in California, USA. In the Mediterranean climate of our field site, annuals germinate in late autumn or early winter, and set seed in spring and summer. The syst ...
... rare than when they are common (Fig. 1). Our approach focused on experimentally assembled communities of annual plants on serpentine soils in California, USA. In the Mediterranean climate of our field site, annuals germinate in late autumn or early winter, and set seed in spring and summer. The syst ...
More closely related species are more ecologically similar in an
... competitive exclusion between close relatives (20). Darwin (20) argued that closely related species compete most intensely, because they have similar morphologies and niches. However, the degree to which close relatives are similar in niche is still debated (21). Some studies find evidence for phylog ...
... competitive exclusion between close relatives (20). Darwin (20) argued that closely related species compete most intensely, because they have similar morphologies and niches. However, the degree to which close relatives are similar in niche is still debated (21). Some studies find evidence for phylog ...
Extinctions in competitive communities forced by coloured
... interactions in natural communities is of vital theoretical and practical importance. This knowledge is essential in assessing extinction risks in communities that are, for example, pressed by changing environmental conditions and increasing exploitation. We developed a model of density dependent po ...
... interactions in natural communities is of vital theoretical and practical importance. This knowledge is essential in assessing extinction risks in communities that are, for example, pressed by changing environmental conditions and increasing exploitation. We developed a model of density dependent po ...
The Pinto Abalone Deserves Protection Under the Endangered
... cluster together and release their sperm and eggs into the water. Obviously, this reproductive strategy depends on a certain density of animals to succeed—and pinto abalone populations, in some cases, have suffered such a decline that individuals are simply too far apart from one another to reproduc ...
... cluster together and release their sperm and eggs into the water. Obviously, this reproductive strategy depends on a certain density of animals to succeed—and pinto abalone populations, in some cases, have suffered such a decline that individuals are simply too far apart from one another to reproduc ...
Effects of Habitat-Forming Species Richness, Evenness, Identity
... community primary production. Contrary to expectation, no general change in HFS richness, evenness, abundance, or identity on associated species community establishment was observed. However, over the study period, the HFS diversity profile modified the structure within the trophic guilds, which may ...
... community primary production. Contrary to expectation, no general change in HFS richness, evenness, abundance, or identity on associated species community establishment was observed. However, over the study period, the HFS diversity profile modified the structure within the trophic guilds, which may ...
The importance of niches for the maintenance of species diversity
... rare than when they are common (Fig. 1). Our approach focused on experimentally assembled communities of annual plants on serpentine soils in California, USA. In the Mediterranean climate of our field site, annuals germinate in late autumn or early winter, and set seed in spring and summer. The syst ...
... rare than when they are common (Fig. 1). Our approach focused on experimentally assembled communities of annual plants on serpentine soils in California, USA. In the Mediterranean climate of our field site, annuals germinate in late autumn or early winter, and set seed in spring and summer. The syst ...
Effects of Urbanization on Avian Community Organization
... counts consistentlydetected more individuals than direct counts; this difference was significant or marginally significantin 6 of 12 cases. Thus, the average value of two instantaneous transect counts was chosen as a population estimate for non-territorial speciesin Oxford. Emlen (1974) also found t ...
... counts consistentlydetected more individuals than direct counts; this difference was significant or marginally significantin 6 of 12 cases. Thus, the average value of two instantaneous transect counts was chosen as a population estimate for non-territorial speciesin Oxford. Emlen (1974) also found t ...
Communication plan for the National strategy and action plan for the
... Loss of biodiversity continues to be overshadowed by other environmental issues, even if the prominence and visibility of biodiversity issues have increased in recent years. Questions of traditional conservation concerning individual organisms and protected areas are the most likely themes to spark ...
... Loss of biodiversity continues to be overshadowed by other environmental issues, even if the prominence and visibility of biodiversity issues have increased in recent years. Questions of traditional conservation concerning individual organisms and protected areas are the most likely themes to spark ...
Dowload SFI Landowner`s Manual - Minnesota Logger Education
... To promote the growing of renewable forest resources on private lands while protecting environmental benefits and increasing public understanding of all benefits of productive forestry. Minnesota has over 1,700 Tree Farmers who have made a commitment to protect wildlife habitat and watersheds, to co ...
... To promote the growing of renewable forest resources on private lands while protecting environmental benefits and increasing public understanding of all benefits of productive forestry. Minnesota has over 1,700 Tree Farmers who have made a commitment to protect wildlife habitat and watersheds, to co ...
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.