Wildlife Study Guide
... Plant succession is the gradual change in plant species in a given area over time. Succession generally occurs in steps or stages until a stable or climax community is reached. Disturbance events such as fire, flooding, wind storms and grazing continually set back succession and the cycle will conti ...
... Plant succession is the gradual change in plant species in a given area over time. Succession generally occurs in steps or stages until a stable or climax community is reached. Disturbance events such as fire, flooding, wind storms and grazing continually set back succession and the cycle will conti ...
Bumblebees
... Bumblebees are vital for pollinating our wildflowers and crops such as apples and raspberries. Unfortunately these popular and hard-working insects are in decline and urgent action is required to save them. Bumblebees have undergone a rapid decline in their range and population. There are 25 species ...
... Bumblebees are vital for pollinating our wildflowers and crops such as apples and raspberries. Unfortunately these popular and hard-working insects are in decline and urgent action is required to save them. Bumblebees have undergone a rapid decline in their range and population. There are 25 species ...
Science and Economics in the Management of an Invasive Species
... The management measures applied in the California Dungeness crab fishery (limited access, closed season, gear restrictions, and size and sex restrictions) suggest that fishing costs cut substantially into resource rents. Dewees and colleagues (2004) explain that the fishery has been “fully and inten ...
... The management measures applied in the California Dungeness crab fishery (limited access, closed season, gear restrictions, and size and sex restrictions) suggest that fishing costs cut substantially into resource rents. Dewees and colleagues (2004) explain that the fishery has been “fully and inten ...
Linking ecological niche, community ecology and biogeography
... where Ac is the cell area (106 m2), E the kinetic energy (0.63 eV), kB Boltzmann’s constant, T(i) the temperature in cell i, bA the proportionality constant for the area exploited by an individual and B(j) the body mass of species j. For Aa, we used the adult body mass Ba, whereas for Ay we used By. ...
... where Ac is the cell area (106 m2), E the kinetic energy (0.63 eV), kB Boltzmann’s constant, T(i) the temperature in cell i, bA the proportionality constant for the area exploited by an individual and B(j) the body mass of species j. For Aa, we used the adult body mass Ba, whereas for Ay we used By. ...
Pest Animals - Little River Landcare
... Many pest animals are introduced species. Some of these species were introduced by English migrants to remind them of the English landscapes. Species, such as deer and foxes were introduced for sport while others were introduced as biological control agents. Feral populations of pigs, goats, horses ...
... Many pest animals are introduced species. Some of these species were introduced by English migrants to remind them of the English landscapes. Species, such as deer and foxes were introduced for sport while others were introduced as biological control agents. Feral populations of pigs, goats, horses ...
Qualitative Insight Into Public Knowledge of, and
... National Recreation Area to the southeast, and Bryce Canyon National Park to the northwest. As for threats to the region’s biodiversity, the population of the Intermountain West continues to experience tremendous growth. Utah, in particular, has one of fastest growing populations in the nation. Sinc ...
... National Recreation Area to the southeast, and Bryce Canyon National Park to the northwest. As for threats to the region’s biodiversity, the population of the Intermountain West continues to experience tremendous growth. Utah, in particular, has one of fastest growing populations in the nation. Sinc ...
International Conservation Policy Delivers Benefits for Birds in Europe.
... mechanisms for achieving this aim were left to the discretion of individual Member States. Central to the Directive was a list (“Annex I”) of species considered particularly vulnerable or rare, or requiring special conservation measures (12). Member States are bound by the Directive to improve the c ...
... mechanisms for achieving this aim were left to the discretion of individual Member States. Central to the Directive was a list (“Annex I”) of species considered particularly vulnerable or rare, or requiring special conservation measures (12). Member States are bound by the Directive to improve the c ...
Niche versus chance and tree diversity in forest gaps
... dictably within and among gaps, competition could lead to specialization on different levels of these resources 46 . Furbehavior to suggest that coexistence of many species is thermore, with steeper sun angles and presumed lower soil maintained via niche partitioning in gaps. In a Hawaiian forfertil ...
... dictably within and among gaps, competition could lead to specialization on different levels of these resources 46 . Furbehavior to suggest that coexistence of many species is thermore, with steeper sun angles and presumed lower soil maintained via niche partitioning in gaps. In a Hawaiian forfertil ...
Land Use, Biodiversity, and Ecosystem Integrity
... global level, cumulative losses have been estimated for tropical forests and other selected habitat types. The following numbers, describing cumulative destruction, should be interpreted with three cautions. First, habitat that is designated as lost is not necessarily biologically depauperate. For e ...
... global level, cumulative losses have been estimated for tropical forests and other selected habitat types. The following numbers, describing cumulative destruction, should be interpreted with three cautions. First, habitat that is designated as lost is not necessarily biologically depauperate. For e ...
Population Management Plan Submission
... New Zealand is a global hotspot for marine mammals. At least 38 species of dolphin and whale are found within New Zealand waters, just under half of the world’s total. Three species of seal also breed around the country’s shores with a fourth visiting frequently. Many of these species and local popu ...
... New Zealand is a global hotspot for marine mammals. At least 38 species of dolphin and whale are found within New Zealand waters, just under half of the world’s total. Three species of seal also breed around the country’s shores with a fourth visiting frequently. Many of these species and local popu ...
Species Redundancy and Ecosystem Reliability
... Species redundancy stems from the compensatory abilities of species within functional groups. Local extinction of species within functional groups is often followed by compensatory growth of others, which effectively leads to a replacement of the contributions of lost species to overall group functi ...
... Species redundancy stems from the compensatory abilities of species within functional groups. Local extinction of species within functional groups is often followed by compensatory growth of others, which effectively leads to a replacement of the contributions of lost species to overall group functi ...
Inferring species interactions in ecological communities
... 1. Natural communities commonly contain many different species and functional groups, and multiple types of species interactions act simultaneously, such as competition, predation, commensalism or mutualism. However, experimental and theoretical investigations have generally been limited by focusing ...
... 1. Natural communities commonly contain many different species and functional groups, and multiple types of species interactions act simultaneously, such as competition, predation, commensalism or mutualism. However, experimental and theoretical investigations have generally been limited by focusing ...
Biotic modifiers, environmental modulation and species
... All species modify the environment, but we are interested in those species (here called biotic modifiers) that have a sufficiently large impact on the environment to influence the local persistence of other species. Describing or quantifying the impact of each biotic modifier is daunting, as the num ...
... All species modify the environment, but we are interested in those species (here called biotic modifiers) that have a sufficiently large impact on the environment to influence the local persistence of other species. Describing or quantifying the impact of each biotic modifier is daunting, as the num ...
Testing macroecology models with stream-fish assemblages Nicholas J. Gotelli
... Traditional macroecological analyses have been based on bivariate plots of the relationships between body size, population size and geographic range of extant species (Brown, 1995). For stream fishes of Oklahoma, this analysis is relatively non-informative. There is little concordance between the pat ...
... Traditional macroecological analyses have been based on bivariate plots of the relationships between body size, population size and geographic range of extant species (Brown, 1995). For stream fishes of Oklahoma, this analysis is relatively non-informative. There is little concordance between the pat ...
Informational Resources on Invasive Plants
... web-based informational resource, including a regional atlas, of up to 100 species known or suspected to be invasive in New England. The atlas supports an early detection and alert system for new invaders. The IPANE website includes images and descriptive data, identification tips, management links ...
... web-based informational resource, including a regional atlas, of up to 100 species known or suspected to be invasive in New England. The atlas supports an early detection and alert system for new invaders. The IPANE website includes images and descriptive data, identification tips, management links ...
SPATIAL VARIATION IN TREE SPECIES COMPOSITION ACROSS
... been tested in several tropical tree communities (Condit et al. 1996), but it would be interesting to test it further in other forests. Many biological questions relate to species turnover, or changes in species composition from one community to another, rather than just local diversity as defined a ...
... been tested in several tropical tree communities (Condit et al. 1996), but it would be interesting to test it further in other forests. Many biological questions relate to species turnover, or changes in species composition from one community to another, rather than just local diversity as defined a ...
Directing Research to Reduce the Impacts of
... that better data on failed introductions were required to distinguish these from successful invasions (Simberloff 1989; Mack 1996). Similarly, better information on lowimpact invasive species will help identify characteristics that set high-impact nonindigenous species apart, giving us greater under ...
... that better data on failed introductions were required to distinguish these from successful invasions (Simberloff 1989; Mack 1996). Similarly, better information on lowimpact invasive species will help identify characteristics that set high-impact nonindigenous species apart, giving us greater under ...
Problems with areal definitions of endemism: the effects of spatial
... of species for a region to be evaluated. Although data necessary to compare areal definitions at different spatial scales directly are not currently available (Peterson & Sánchez-Cordero, 1994), experience in biodiversity studies in several regions suggests strongly that this assumption is at best ...
... of species for a region to be evaluated. Although data necessary to compare areal definitions at different spatial scales directly are not currently available (Peterson & Sánchez-Cordero, 1994), experience in biodiversity studies in several regions suggests strongly that this assumption is at best ...
evaluating the sources of potential migrant species
... To identify the potential sources of colonizing species into the North Carolina Piedmont and the Southern Appalachians, we carried out experiments of resident (R) and potential immigrant (PI) tree species. Combining large, long-term manipulative experiments with transplantation of more than 13 000 s ...
... To identify the potential sources of colonizing species into the North Carolina Piedmont and the Southern Appalachians, we carried out experiments of resident (R) and potential immigrant (PI) tree species. Combining large, long-term manipulative experiments with transplantation of more than 13 000 s ...
Guidlines for Reporting Large Carnivores
... scene, the reporting party may be asked to locate some form of physical evidence prior to a field evaluation by KDWP. Reporting parties who are unable or unwilling to locate physical evidence will be informed that KDWP recognizes the potential presence of large carnivores and will be asked to attemp ...
... scene, the reporting party may be asked to locate some form of physical evidence prior to a field evaluation by KDWP. Reporting parties who are unable or unwilling to locate physical evidence will be informed that KDWP recognizes the potential presence of large carnivores and will be asked to attemp ...
NatureServe Explorer - Global Invasive Species Information Network
... collected data on rare species and ecological communities to help TNC prioritize land acquisitions. Eventually separating from TNC in 1994 (and first known as the Association for Biodiversity Information), NatureServe has continued to develop the now 30 year old network, which today reaches across m ...
... collected data on rare species and ecological communities to help TNC prioritize land acquisitions. Eventually separating from TNC in 1994 (and first known as the Association for Biodiversity Information), NatureServe has continued to develop the now 30 year old network, which today reaches across m ...
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.