TU National Piscicide Policy
... only tool available for native fish conservation in situations where other methods are impractical or where there are mixed populations of native and non-native species. In smaller ecosystems, electrofishing is the dominant physical control method. Complete removal of non-native trout has been repo ...
... only tool available for native fish conservation in situations where other methods are impractical or where there are mixed populations of native and non-native species. In smaller ecosystems, electrofishing is the dominant physical control method. Complete removal of non-native trout has been repo ...
outstanding the plants sharply distinguished: is always - UvA-DARE
... Another feature which certainly complicates the correlation of the biotic communities with tidal levels is the seasonal shift of various algal belts. Borgesen the ...
... Another feature which certainly complicates the correlation of the biotic communities with tidal levels is the seasonal shift of various algal belts. Borgesen the ...
Climate modifies response of non
... leads to a myriad of effects on plant species and ecosystem properties [3–5]. In general, non-native species exhibit greater success than natives under increased nutrient addition [6,7], and often non-native species will increase in abundance and richness in eutrophied communities at the cost of nat ...
... leads to a myriad of effects on plant species and ecosystem properties [3–5]. In general, non-native species exhibit greater success than natives under increased nutrient addition [6,7], and often non-native species will increase in abundance and richness in eutrophied communities at the cost of nat ...
this PDF file - African Invertebrates
... primarily on the avoidance o f conflict situations, with overt aggressive behaviour seldom displayed. Although the opportunistic existence that this species has developed is probably obligatory due to their sedentary lifestyle and limited availability of resources, this behaviour nonetheless allows ...
... primarily on the avoidance o f conflict situations, with overt aggressive behaviour seldom displayed. Although the opportunistic existence that this species has developed is probably obligatory due to their sedentary lifestyle and limited availability of resources, this behaviour nonetheless allows ...
Incorporating Plant Mortality and Recruitment Into
... bunchgrasses are a key to stability and invasion resistance. Existing literature shows that most rangeland bunchgrasses have average life spans of 10 yr or less, so periodic recruitment is necessary to maintain communities in which they are a major component. Disturbance can influence plant populati ...
... bunchgrasses are a key to stability and invasion resistance. Existing literature shows that most rangeland bunchgrasses have average life spans of 10 yr or less, so periodic recruitment is necessary to maintain communities in which they are a major component. Disturbance can influence plant populati ...
TAKE A LOOK at the Grayling Complaint filed by WWP ()
... Montana fluvial Arctic grayling through the grayling’s listing under the ESA. The Center’s members and staff regularly use lands and intend to continue to use lands throughout the western United States, including the habitat and potential habitat of the Montana fluvial Arctic grayling, for observati ...
... Montana fluvial Arctic grayling through the grayling’s listing under the ESA. The Center’s members and staff regularly use lands and intend to continue to use lands throughout the western United States, including the habitat and potential habitat of the Montana fluvial Arctic grayling, for observati ...
The Caiman Trade - AP Environmental Science
... originated there—but with legal documentation claiming otherwise. It may transpire, for instance, that a skin exported from Colombia is declared as a common caiman when it is actually a Yacaré, which does not occur in Colombia. There may even be a brisk trade in illegal documentation: CITES export f ...
... originated there—but with legal documentation claiming otherwise. It may transpire, for instance, that a skin exported from Colombia is declared as a common caiman when it is actually a Yacaré, which does not occur in Colombia. There may even be a brisk trade in illegal documentation: CITES export f ...
Lake Manager`s Handbook: Alien Invaders
... Oncorhynchus and Salmo spp.), or as having neutral (neither detrimental or beneficial) impact, including various low-stature plants such as starwort (Callitriche stagnalis). For management purposes, the alien species causing problems need to be distinguished from those that are not, and this decisio ...
... Oncorhynchus and Salmo spp.), or as having neutral (neither detrimental or beneficial) impact, including various low-stature plants such as starwort (Callitriche stagnalis). For management purposes, the alien species causing problems need to be distinguished from those that are not, and this decisio ...
Word, 422K (opens in new window)
... Note that the purpose of releasing grass carp into water bodies may be for either weed control of fish farming. Weed control Where the purpose of the release of grass carp into a water body is for weed control then that purpose may include wanting to: ...
... Note that the purpose of releasing grass carp into water bodies may be for either weed control of fish farming. Weed control Where the purpose of the release of grass carp into a water body is for weed control then that purpose may include wanting to: ...
Local feeding specialization by badgers
... than 53% of the consumed biomass. The highest percentage was in winter, and the lowest in autumn (Table 2). All the adult rabbits were taken in early autumn. Small sampie size (n=5) is probably responsible for the lack of rabbit remains in scats collected during February and November. Complementary ...
... than 53% of the consumed biomass. The highest percentage was in winter, and the lowest in autumn (Table 2). All the adult rabbits were taken in early autumn. Small sampie size (n=5) is probably responsible for the lack of rabbit remains in scats collected during February and November. Complementary ...
The Population Biology of Invasive Species Ann K. Sakai
... required for initial colonization and traits needed for establishment. Establishment in a natural community may require different traits than those required upon entering into a human-disturbed habitat (Horvitz et al 1998), and features essential for establishment may not be consistent across taxa. ...
... required for initial colonization and traits needed for establishment. Establishment in a natural community may require different traits than those required upon entering into a human-disturbed habitat (Horvitz et al 1998), and features essential for establishment may not be consistent across taxa. ...
Transfer/release of grass carp and/or silver carp
... Note that the purpose of releasing grass carp into water bodies may be for either weed control of fish farming. Weed control Where the purpose of the release of grass carp into a water body is for weed control then that purpose may include wanting to: ...
... Note that the purpose of releasing grass carp into water bodies may be for either weed control of fish farming. Weed control Where the purpose of the release of grass carp into a water body is for weed control then that purpose may include wanting to: ...
Bobtail Skink (Bobtails)
... Life history and reproduction Bobtails are remarkable for being one of the few reptiles - let alone animals - that are monogamous. A male and female pair-up in early spring for a 6-8 week pairing period before mating in late spring. Following mating, the male and female go their separate ways, reun ...
... Life history and reproduction Bobtails are remarkable for being one of the few reptiles - let alone animals - that are monogamous. A male and female pair-up in early spring for a 6-8 week pairing period before mating in late spring. Following mating, the male and female go their separate ways, reun ...
Gardenification of tropical conserved wildlands
... long as we have been humans (e.g., refs. 6 and 7). We all focused on the first word of that pair and the linkage of biology with nondamaging commerce, and thought ‘‘Oh how nice.’’ I still do. Biodiversity prospecting is a nice item to have in the menu of wildland goods and services. But look at the ...
... long as we have been humans (e.g., refs. 6 and 7). We all focused on the first word of that pair and the linkage of biology with nondamaging commerce, and thought ‘‘Oh how nice.’’ I still do. Biodiversity prospecting is a nice item to have in the menu of wildland goods and services. But look at the ...
Literature Review Ahlam Salih Eltahir and Bouran Ibrahim
... salinity, adaptations to flooding, mangrove mortality, habitat functions, shoreline stabilization and protection, animal habitat and food source, water quality management and improvement and mangrove economic value and uses. It has been concluded that the mangrove ecology can be altered due to human ...
... salinity, adaptations to flooding, mangrove mortality, habitat functions, shoreline stabilization and protection, animal habitat and food source, water quality management and improvement and mangrove economic value and uses. It has been concluded that the mangrove ecology can be altered due to human ...
Climate and Mammals - Stanford University
... by Stanford University Robert Crown Law Lib. on 03/09/09. For personal use only. ...
... by Stanford University Robert Crown Law Lib. on 03/09/09. For personal use only. ...
Scorpiones (Scorpions) - American Museum of Natural History
... Scorpions are the fifth-most diverse order of arachnids in number of described species, but the known diversity is grossly underestimated. Estimates of total diversity run as high as 7,000 species. There are two reasons for this underestimate. (1) Scorpions are cryptic, seasonal, habitat specific, a ...
... Scorpions are the fifth-most diverse order of arachnids in number of described species, but the known diversity is grossly underestimated. Estimates of total diversity run as high as 7,000 species. There are two reasons for this underestimate. (1) Scorpions are cryptic, seasonal, habitat specific, a ...
The relationship between biodiversity and ecosystem functioning in
... Recent theory and experiments predict potentially opposing influences of diversity on primary productivity at adjacent trophic levels (Worm and Duffy 2003; Duffy et al. 2003). While producer biomass generally increases with plant richness (Hooper et al. 2005 for overview), algal biomass has been found ...
... Recent theory and experiments predict potentially opposing influences of diversity on primary productivity at adjacent trophic levels (Worm and Duffy 2003; Duffy et al. 2003). While producer biomass generally increases with plant richness (Hooper et al. 2005 for overview), algal biomass has been found ...
Review of the Impact of Invasive Alien Species on Species Protected
... introduction or care by humans) and includes any part, gametes or propagule of such species that might survive and subsequently reproduce. Invasive Alien Species - IUCN The International Union for Conservation of Nature (IUCN) describes invasive species as “animals, plants or other organisms introdu ...
... introduction or care by humans) and includes any part, gametes or propagule of such species that might survive and subsequently reproduce. Invasive Alien Species - IUCN The International Union for Conservation of Nature (IUCN) describes invasive species as “animals, plants or other organisms introdu ...
Investigations of species richness effects on ecosystem functioning
... Diversity of life on Earth is astonishing. Although there are only 1.4-1.8 million documented species, it is believed that up to 30 million species may exist (May 1990). Consequently, we are experiencing a peak in biodiversity - never before has life been so diverse – but we are also experiencing an ...
... Diversity of life on Earth is astonishing. Although there are only 1.4-1.8 million documented species, it is believed that up to 30 million species may exist (May 1990). Consequently, we are experiencing a peak in biodiversity - never before has life been so diverse – but we are also experiencing an ...
Provided for non-commercial research and educational use only.
... mixing counteracts the emergence of patches. In a well-mixed environment, all organisms potentially interact with each other, much in contrast to terrestrial systems, where many species are either ‘sessile’ (plants) or have very limited range sizes (most small invertebrates except for flying insects ...
... mixing counteracts the emergence of patches. In a well-mixed environment, all organisms potentially interact with each other, much in contrast to terrestrial systems, where many species are either ‘sessile’ (plants) or have very limited range sizes (most small invertebrates except for flying insects ...
PWTB 200-1-91 Management Guidance for Gopher
... very poor survival of hatchlings and juveniles to maturity. See the sections on Headstarting, Canopy Cover, Food Plots, and Predators below for considerations of the potential to improve viability. Carrying Capacity The concept of carrying capacity is borrowed from the Range Management sector. Basic ...
... very poor survival of hatchlings and juveniles to maturity. See the sections on Headstarting, Canopy Cover, Food Plots, and Predators below for considerations of the potential to improve viability. Carrying Capacity The concept of carrying capacity is borrowed from the Range Management sector. Basic ...
Armadillos
... from the late 1800s onward, the nine-banded armadillo (Dasypus novemcinctus) rapidly expanded its range from northern Mexico to include much of the southern USA, with current sightings as far north as southern Illinois, Nebraska, Missouri, and southwestern Tennessee. In Florida, several armadillos e ...
... from the late 1800s onward, the nine-banded armadillo (Dasypus novemcinctus) rapidly expanded its range from northern Mexico to include much of the southern USA, with current sightings as far north as southern Illinois, Nebraska, Missouri, and southwestern Tennessee. In Florida, several armadillos e ...
Battle Creek Integrated Weed Management Plan
... address. Every manager has goals for the land they manage even if it is as simple as maintaining landscapes in their current condition. More often, goals are related to the intended use of the land, such as recreation, economic productivity, or ecosystem benefits. Weed management plans are one tool ...
... address. Every manager has goals for the land they manage even if it is as simple as maintaining landscapes in their current condition. More often, goals are related to the intended use of the land, such as recreation, economic productivity, or ecosystem benefits. Weed management plans are one tool ...
mop5_25_draft_ssap_slaty_egret_0
... Republic of Congo (DRC) but there is no confirmation of this. It has recently been confirmed in adjacent eastern Angola. An increasingly reported non-breeding visitor to South Africa, where very small numbers may be resident and an isolated breeding attempt has been recorded. The estimated range of ...
... Republic of Congo (DRC) but there is no confirmation of this. It has recently been confirmed in adjacent eastern Angola. An increasingly reported non-breeding visitor to South Africa, where very small numbers may be resident and an isolated breeding attempt has been recorded. The estimated range of ...
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.