Evaluating the Biotic Integrity of Watersheds in the Sierra Nevada
... fishes to changes in the environment would reflect both major environmental events (e.g., a pesticide spill) and more subtle long-term effects, such as chronic nonpoint source pollution and changes in land use. Biotic integrity is defined as “the ability to support and maintain a balanced, integrate ...
... fishes to changes in the environment would reflect both major environmental events (e.g., a pesticide spill) and more subtle long-term effects, such as chronic nonpoint source pollution and changes in land use. Biotic integrity is defined as “the ability to support and maintain a balanced, integrate ...
Read Wildlife Matters December 2007
... However, the challenges faced by AWC and other conservation organisations are greater now than ever before. Feral animals, weeds and altered fire regimes together present a clear and present danger to the survival of many native species and habitats. To meet these challenges, AWC continues to build ...
... However, the challenges faced by AWC and other conservation organisations are greater now than ever before. Feral animals, weeds and altered fire regimes together present a clear and present danger to the survival of many native species and habitats. To meet these challenges, AWC continues to build ...
Endeavour Hydrothermal Vents: Canada`s First Marine Protected Area.
... Activity I– Becoming a Researcher introduces students to features of hydrothermal vents, terms and names, and the vent ecosystem. Students research and present within groups and then to whole class so that all the class is introduced to terminology and gains an understanding of Hydrothermal Vents an ...
... Activity I– Becoming a Researcher introduces students to features of hydrothermal vents, terms and names, and the vent ecosystem. Students research and present within groups and then to whole class so that all the class is introduced to terminology and gains an understanding of Hydrothermal Vents an ...
Download technical report 191
... Hawaii, Mauna Kea, Maunakea Science Reserve, Halepōhaku, astronomy precinct, Office of Maunakea ...
... Hawaii, Mauna Kea, Maunakea Science Reserve, Halepōhaku, astronomy precinct, Office of Maunakea ...
Echolocation in sympatric Peale`s dolphins (Lagenorhynchus
... live sympatrically off the Falkland Islands (Islas Malvinas). As such, they offer a suitable experimental platform for elucidating whether similar trade-offs are at play among the toothed whales between meeting biophysical demands for a given body size, food niche and predation scheme versus the neg ...
... live sympatrically off the Falkland Islands (Islas Malvinas). As such, they offer a suitable experimental platform for elucidating whether similar trade-offs are at play among the toothed whales between meeting biophysical demands for a given body size, food niche and predation scheme versus the neg ...
Plant functional traits and the multidimensional nature of species
... cologists have long understood that phenotypic differences between species play an important role in maintaining species diversity within communities (1, 2). Differences in bill shape, body size, or rooting depth are often hypothesized to reduce interspecific relative to intraspecific competition an ...
... cologists have long understood that phenotypic differences between species play an important role in maintaining species diversity within communities (1, 2). Differences in bill shape, body size, or rooting depth are often hypothesized to reduce interspecific relative to intraspecific competition an ...
Breeding habitat selection of sympatric White
... wi = 0.79). The coefficients and odds ratio estimates indicated that White-tailed Ptarmigan breeding sites tended to be at higher elevations, steeper slopes and amidst greater lichen cover, while Rock Ptarmigan preferred lower elevations with higher graminoid cover (Table 2; Fig. 1a, b). Rock cover ...
... wi = 0.79). The coefficients and odds ratio estimates indicated that White-tailed Ptarmigan breeding sites tended to be at higher elevations, steeper slopes and amidst greater lichen cover, while Rock Ptarmigan preferred lower elevations with higher graminoid cover (Table 2; Fig. 1a, b). Rock cover ...
Opposite relationships between invasibility and native species
... relationship between invasibility and native species richness may exist (Shea and Chesson 2002). Within a small area, however, gross resource levels are less variable, and the demand by resident species determines the resource availability (Shea and Chesson 2002). Therefore, at smaller scales, a neg ...
... relationship between invasibility and native species richness may exist (Shea and Chesson 2002). Within a small area, however, gross resource levels are less variable, and the demand by resident species determines the resource availability (Shea and Chesson 2002). Therefore, at smaller scales, a neg ...
Western ringtail possum recovery plan514.9 KB
... there is increased recognition of the status of the western ringtail possum and support towards its conservation. ...
... there is increased recognition of the status of the western ringtail possum and support towards its conservation. ...
chapt13_lecture
... resources such as oil and natural gas. For this reason, countries wanted a way to protect these resources from exploitation by other countries. In the 1950’s, the United Nations agreed that each country shall have control over the marine resources out to 200 nautical miles off their coast – this inc ...
... resources such as oil and natural gas. For this reason, countries wanted a way to protect these resources from exploitation by other countries. In the 1950’s, the United Nations agreed that each country shall have control over the marine resources out to 200 nautical miles off their coast – this inc ...
Salmon and Climate Change
... Salmon have a long historical association with human society and represent one of the most valuable wild capture fisheries in the world. In a recent assessment in 2007, the salmon fishing industry contributed more than $2 billion to economies in Russia, Japan, the US and Canada and directly employed ...
... Salmon have a long historical association with human society and represent one of the most valuable wild capture fisheries in the world. In a recent assessment in 2007, the salmon fishing industry contributed more than $2 billion to economies in Russia, Japan, the US and Canada and directly employed ...
`Rational use` in Antarctic waters
... guided policy for more than a century. In 1959, the Antarctic Treaty was signed (today there are 52 signatory parties), and subsequent amendments (e.g., 1964 Agreed Measures for the Conservation of Antarctic Flora and Fauna, 1991 Protocol for Environmental Protection) promoted the preservation and c ...
... guided policy for more than a century. In 1959, the Antarctic Treaty was signed (today there are 52 signatory parties), and subsequent amendments (e.g., 1964 Agreed Measures for the Conservation of Antarctic Flora and Fauna, 1991 Protocol for Environmental Protection) promoted the preservation and c ...
Determining ancient woodland indicator plants for practical use: A
... northeast American states that compared the vegetation of ancient and recent forests. From these they concluded that the response of forest plant species to land use coincided with a clustering of species featuring different ecological characteristics. In regard to this, slowly colonising species, m ...
... northeast American states that compared the vegetation of ancient and recent forests. From these they concluded that the response of forest plant species to land use coincided with a clustering of species featuring different ecological characteristics. In regard to this, slowly colonising species, m ...
Geographic Information Systems in Biogeography and
... At the core of the analysis of ecosystems is description of their community structure. An ecological community may be described as the assemblage of species populations at a particular place and time. Usually there are interactions among the species of a community, and in many regions clusters of di ...
... At the core of the analysis of ecosystems is description of their community structure. An ecological community may be described as the assemblage of species populations at a particular place and time. Usually there are interactions among the species of a community, and in many regions clusters of di ...
Habitat selection, reproduction and predation of wintering
... habitat is most common in upland areas and is characterized by hummocky tundra. The most common plants are Salix arctica, Cassiope tetragona and graminoids, such as Arctagrostis latifolia (Audet et al. 2007). For the purpose of this study, we recognized a third habitat—streams running through the up ...
... habitat is most common in upland areas and is characterized by hummocky tundra. The most common plants are Salix arctica, Cassiope tetragona and graminoids, such as Arctagrostis latifolia (Audet et al. 2007). For the purpose of this study, we recognized a third habitat—streams running through the up ...
Spatial discordance in fish, coral, and sponge assemblages across
... using raw abundance data (Quinn & Keough 2002). Separate tests were conducted on fish, coral, and sponge communities. Analysis of similarities (ANOSIM; Clarke 1993) was then used to corroborate significant differences in assemblage structure between pairs of reef zones. Similarity percentages (SIMPE ...
... using raw abundance data (Quinn & Keough 2002). Separate tests were conducted on fish, coral, and sponge communities. Analysis of similarities (ANOSIM; Clarke 1993) was then used to corroborate significant differences in assemblage structure between pairs of reef zones. Similarity percentages (SIMPE ...
E4ects of Habitat Destruction and Resource
... destruction on a predator}prey interaction. The model complements and extends earlier work published by Bascompte and SoleH (1998, J. theor. Biol. 195, 383}393) in that it also permits use of alternative prey (i.e., resource supplementation) by predators. The current model is stable whenever coexist ...
... destruction on a predator}prey interaction. The model complements and extends earlier work published by Bascompte and SoleH (1998, J. theor. Biol. 195, 383}393) in that it also permits use of alternative prey (i.e., resource supplementation) by predators. The current model is stable whenever coexist ...
Long-term dynamics of biotic and abiotic resistance to exotic species
... and restoration of native plant and animal populations and communities are critical aspects of vernal pool conservation within the region. In previous research, we compared patterns and mechanisms of plant community development and exotic species invasions in naturally occurring and restored vernal ...
... and restoration of native plant and animal populations and communities are critical aspects of vernal pool conservation within the region. In previous research, we compared patterns and mechanisms of plant community development and exotic species invasions in naturally occurring and restored vernal ...
Secondary Activities
... Workshops last 45min-1hr and cost £40 per group, max. 30 children per group. We can cover a wide range of topics: please see below for details. Workshops take place indoors unless otherwise stated. ...
... Workshops last 45min-1hr and cost £40 per group, max. 30 children per group. We can cover a wide range of topics: please see below for details. Workshops take place indoors unless otherwise stated. ...
Protecting Malta`s wind chaser
... in its upgrading to ‘Near Threatened’ in the IUCN Red List in 2008 and listing under Annex I of the Birds Directive. Malta reflects this global population trend, with several colonies decreasing in numbers or becoming abandoned in the last 25 years. The colony at Rdum tal-Madonna, discovered in 1969 ...
... in its upgrading to ‘Near Threatened’ in the IUCN Red List in 2008 and listing under Annex I of the Birds Directive. Malta reflects this global population trend, with several colonies decreasing in numbers or becoming abandoned in the last 25 years. The colony at Rdum tal-Madonna, discovered in 1969 ...
Pages 239–248682.15 KB - Department of Parks and Wildlife
... examined using two-way analysis of variance for baited and unbaited sites, respectively. The amount of each dietary category that was calculated to have been consumed by foxes, after digestibility estimates had been applied, was used in these analyses. The prey preferences that foxes exhibited for r ...
... examined using two-way analysis of variance for baited and unbaited sites, respectively. The amount of each dietary category that was calculated to have been consumed by foxes, after digestibility estimates had been applied, was used in these analyses. The prey preferences that foxes exhibited for r ...
Energy flow to two abundant consumers in a subtropical oyster reef
... Abstract Oyster reefs are among the most threatened coastal habitat types, but still provide critical habitat and food resources for many estuarine species. The structure of oyster reef food webs is an important framework from which to examine the role of these reefs in supporting high densities of ...
... Abstract Oyster reefs are among the most threatened coastal habitat types, but still provide critical habitat and food resources for many estuarine species. The structure of oyster reef food webs is an important framework from which to examine the role of these reefs in supporting high densities of ...
booklet of abstracts
... Ambrosia artemisiifolia, common ragweed is a noxious weed originating from Northern America. Additional to the impact on agriculture, the weed produces highly allergenic pollen, which has a detrimental effect on human wellbeing. Mechanical and chemical management have been elaborated, but they remai ...
... Ambrosia artemisiifolia, common ragweed is a noxious weed originating from Northern America. Additional to the impact on agriculture, the weed produces highly allergenic pollen, which has a detrimental effect on human wellbeing. Mechanical and chemical management have been elaborated, but they remai ...
Recreational hunting NSW: claims v facts fact sheet
... “only suitable for smaller scale operations” or “if used in conjunction with other control methods such as mustering or trapping” “considered to be the most effective technique currently available” [however, aerial shooting can achieve much greater effectiveness]; “To keep stress to a minimum, shoot ...
... “only suitable for smaller scale operations” or “if used in conjunction with other control methods such as mustering or trapping” “considered to be the most effective technique currently available” [however, aerial shooting can achieve much greater effectiveness]; “To keep stress to a minimum, shoot ...
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.