Disturbance, Scale, and Boundary in Wilderness
... often focused on the effect of park size on population persistence and on negative impacts along natural area edges. For example, Schoenwald-Cox (1983) investigated the relationship between reserve size and persistence for three groups of mammals. Using a population size of 1,000 individuals as a co ...
... often focused on the effect of park size on population persistence and on negative impacts along natural area edges. For example, Schoenwald-Cox (1983) investigated the relationship between reserve size and persistence for three groups of mammals. Using a population size of 1,000 individuals as a co ...
Scaling environmental change through the community
... function only recently (Landsberg et al., 1999; Walker et al., 1999; Hooper et al., 2002; Lavorel & Garnier, 2002; Naeem & Wright, 2003). Here, we extend this approach to the challenge of scaling processes from individuals to ecosystems through the community level in the context of environmental cha ...
... function only recently (Landsberg et al., 1999; Walker et al., 1999; Hooper et al., 2002; Lavorel & Garnier, 2002; Naeem & Wright, 2003). Here, we extend this approach to the challenge of scaling processes from individuals to ecosystems through the community level in the context of environmental cha ...
Wildlife in Managed Forests: Spotted Owl
... At the time of listing, an assumption was made that there was very limited suitable habitat on non-federal lands. Since then, studies throughout the owl’s range have broadened scientists’ knowledge. In some cases, the assumptions about suitable habitat on non-federal lands were not validated. While ...
... At the time of listing, an assumption was made that there was very limited suitable habitat on non-federal lands. Since then, studies throughout the owl’s range have broadened scientists’ knowledge. In some cases, the assumptions about suitable habitat on non-federal lands were not validated. While ...
A boreal invasion in response to climate change? Range shifts and
... 2009). These changes could be expected as a warmer climate should increase primary productivity in temperaturelimited ecosystems. This could constrain species adapted to present temperature and resource conditions, while it could allow species limited by those conditions to increase in abundance and ...
... 2009). These changes could be expected as a warmer climate should increase primary productivity in temperaturelimited ecosystems. This could constrain species adapted to present temperature and resource conditions, while it could allow species limited by those conditions to increase in abundance and ...
ppt
... Phylogenetic Perspectives Webb (2000) An example from rainforest trees: Is the distribution of species among habitats (or samples) in a community nonrandom with respect to phylogeny? “The demonstration of nonrandom spatial association of species with habitats is a necessary but not sufficient criter ...
... Phylogenetic Perspectives Webb (2000) An example from rainforest trees: Is the distribution of species among habitats (or samples) in a community nonrandom with respect to phylogeny? “The demonstration of nonrandom spatial association of species with habitats is a necessary but not sufficient criter ...
RJVA08_253.MGRS.report final - Laboratory of Tree
... was stand-replacing over most of the spruce-fir and much of the surrounding mesic mixed-conifer forest but was low to moderate-severity in fuel-limited dry mixed-conifer and pine dominated forest (O'Connor 2013). Prior to 1870, median fire return intervals in mesic mixed-conifer forest surrounding t ...
... was stand-replacing over most of the spruce-fir and much of the surrounding mesic mixed-conifer forest but was low to moderate-severity in fuel-limited dry mixed-conifer and pine dominated forest (O'Connor 2013). Prior to 1870, median fire return intervals in mesic mixed-conifer forest surrounding t ...
883) What controls the ability of species to respond (by
... proportion of these stock that are available for conservation grazing, whether it will be regionally different. And if and how any changes can be used positively to increase the number of appropriate stock available locally for cons grazing on agriculturally poor sites. 7) Are there alternatives to ...
... proportion of these stock that are available for conservation grazing, whether it will be regionally different. And if and how any changes can be used positively to increase the number of appropriate stock available locally for cons grazing on agriculturally poor sites. 7) Are there alternatives to ...
Connectivity at the Land-Water Interface
... habitats. This is due to two important factors. First, in most freshwater systems, land area is greater than inundated area; and terrestrial production outweighs aquatic production (Power 2001), which further increases the probability of the passive (abiotically-forced) movement of material from ter ...
... habitats. This is due to two important factors. First, in most freshwater systems, land area is greater than inundated area; and terrestrial production outweighs aquatic production (Power 2001), which further increases the probability of the passive (abiotically-forced) movement of material from ter ...
Dispersal of Garry Oak Acorns by Steller`s Jays
... establish new oak populations. Planting of acorns just below the soil surface, in habitats on flat terrain with deep soil and sparse overstory vegetation, will ensure greatest survival of acorns and seedlings. Acorns should also be planted in sloping, thin-soiled habitats, where xeric conditions wil ...
... establish new oak populations. Planting of acorns just below the soil surface, in habitats on flat terrain with deep soil and sparse overstory vegetation, will ensure greatest survival of acorns and seedlings. Acorns should also be planted in sloping, thin-soiled habitats, where xeric conditions wil ...
"Ecosystem Engineers". - Cary Institute of Ecosystem Studies
... modify their environment can have significantly faster population growth rates in suboptimal habitats than species that do not modify their environment (Cuddington and Hastings, 2004). The ecosystem engineering concept is also central to biodiversity conservation and land-use change. Species diversit ...
... modify their environment can have significantly faster population growth rates in suboptimal habitats than species that do not modify their environment (Cuddington and Hastings, 2004). The ecosystem engineering concept is also central to biodiversity conservation and land-use change. Species diversit ...
Gerbils and Heteromyids – Interspecific Competition and the Spatio
... profit (for more details on optimal patch use see Brown 1986, 1988, 1989a, Kotler and Brown 1988, 1990, Kotler et al. 1993, Brown et al. 1994). However, the main question regarding the two-species system remained unsolved: How do these two sympatric species coexist? Brown et al. (1994) found evidenc ...
... profit (for more details on optimal patch use see Brown 1986, 1988, 1989a, Kotler and Brown 1988, 1990, Kotler et al. 1993, Brown et al. 1994). However, the main question regarding the two-species system remained unsolved: How do these two sympatric species coexist? Brown et al. (1994) found evidenc ...
Endangered Species Act
... maintaining the health of their ecosystems overall by keeping population numbers in check and weeding out disease among prey Photo: Colorado Division of Wildlife species. This in turn helps the whole ecosystem remain balanced. Restoring the lynx will require conserving critical old growth forest hab ...
... maintaining the health of their ecosystems overall by keeping population numbers in check and weeding out disease among prey Photo: Colorado Division of Wildlife species. This in turn helps the whole ecosystem remain balanced. Restoring the lynx will require conserving critical old growth forest hab ...
Ecological and Evolutionary Drivers of Geographic Variation in
... In 1966, Eric Pianka wrote the first review paper on large-scale diversity gradients and reviewed six major hypotheses to explain the latitudinal diversity gradient. Since then, several reviews have added new hypotheses to this list (Rohde 1992, Willig et al. 2003, Mittelbach et al. 2007). Complicat ...
... In 1966, Eric Pianka wrote the first review paper on large-scale diversity gradients and reviewed six major hypotheses to explain the latitudinal diversity gradient. Since then, several reviews have added new hypotheses to this list (Rohde 1992, Willig et al. 2003, Mittelbach et al. 2007). Complicat ...
REVIEW ARTICLE A research strategy for
... be of particular assistance to the conservation of biodiversity on islands. For the purposes of this review, we have used the definition of biodiversity in the NZBS, which in brief is the ‘variety of all biological life – plants, animals, fungi and microorganisms – the genes they contain and the eco ...
... be of particular assistance to the conservation of biodiversity on islands. For the purposes of this review, we have used the definition of biodiversity in the NZBS, which in brief is the ‘variety of all biological life – plants, animals, fungi and microorganisms – the genes they contain and the eco ...
Biodiversity - Convention on Biological Diversity
... CBD Programme of Work on Agricultural Biodiversity: 4 components on Assessment, Adaptive Management, Capacity Building, Mainstreaming) – International Initiative for the Conservation and Sustainable Use of Soil Biodiversity – International Initiative for the Conservation and Sustainable Use of ...
... CBD Programme of Work on Agricultural Biodiversity: 4 components on Assessment, Adaptive Management, Capacity Building, Mainstreaming) – International Initiative for the Conservation and Sustainable Use of Soil Biodiversity – International Initiative for the Conservation and Sustainable Use of ...
Volume 7 - Lion Tamarins of Brazil Fund
... conservation of the GHLTs is the purchase of land that regularly, but at unpredictable times, comes up for sale around the reserve. Especially if these properties still contain significant amounts of forest, such a purchase is very important. It not only brings more forest under protection, but thes ...
... conservation of the GHLTs is the purchase of land that regularly, but at unpredictable times, comes up for sale around the reserve. Especially if these properties still contain significant amounts of forest, such a purchase is very important. It not only brings more forest under protection, but thes ...
Here - Tylianakis Lab Group
... Abstract. Complementary resource use and redundancy of species that fulfill the same ecological role are two mechanisms that can respectively increase and stabilize process rates in ecosystems. For example, predator complementarity and redundancy can determine prey consumption rates and their stabili ...
... Abstract. Complementary resource use and redundancy of species that fulfill the same ecological role are two mechanisms that can respectively increase and stabilize process rates in ecosystems. For example, predator complementarity and redundancy can determine prey consumption rates and their stabili ...
Why Are HEALTHY ECOSYSTEMS Important?
... Ecosystem restoration has primarily targeted uninhabited islands. While Project Floreana is the first island-wide restoration project on an inhabited island, there is an urgent need to reduce human impacts on the others. As development continues, the inhabited islands are seeing an increase in roads ...
... Ecosystem restoration has primarily targeted uninhabited islands. While Project Floreana is the first island-wide restoration project on an inhabited island, there is an urgent need to reduce human impacts on the others. As development continues, the inhabited islands are seeing an increase in roads ...
By: Cody Adkins Charlotte Anderson Michelle Barillas Holly Harlin
... of other herbivores and omnivores, such as rabbits (Sylvilagus spp.) and black bears, may decline due to a lack of resources. In an extreme example, on Anticosti Island (a small island located in Quebec, Canada) scientists have documented the disappearance of both berry-producing shrubs and the blac ...
... of other herbivores and omnivores, such as rabbits (Sylvilagus spp.) and black bears, may decline due to a lack of resources. In an extreme example, on Anticosti Island (a small island located in Quebec, Canada) scientists have documented the disappearance of both berry-producing shrubs and the blac ...
Intraspecific genetic variation and species coexistence in plant
... [10]. This framework focuses on ecological differences among competing species and how these differences enable coexistence—or not. Here, species interactions are conceptually understood by their amount of overlap in a multidimensional niche space made up of resources, natural enemies, time and spac ...
... [10]. This framework focuses on ecological differences among competing species and how these differences enable coexistence—or not. Here, species interactions are conceptually understood by their amount of overlap in a multidimensional niche space made up of resources, natural enemies, time and spac ...
Notes Chapter 5: Climate and Terrestrial Biodiversity
... Many migratory birds are declining because of habitat fragmentation and destruction These forests once covered eastern half of the US and ...
... Many migratory birds are declining because of habitat fragmentation and destruction These forests once covered eastern half of the US and ...
Spotted-tailed Quoll A vulnerable species
... Targeted feral animal control programs may benefit the Spotted-tailed Quoll through reduction of competition. However, due to the uncertainty about the uptake of poisoned baits by Quolls and the risk of secondary poisoning (and the degree to which individual animals are affected or killed) vertebrat ...
... Targeted feral animal control programs may benefit the Spotted-tailed Quoll through reduction of competition. However, due to the uncertainty about the uptake of poisoned baits by Quolls and the risk of secondary poisoning (and the degree to which individual animals are affected or killed) vertebrat ...
The potential role of ecological corridors for habitat conservation in
... ecological corridor of any length will rarely be of uniform soil and vegetation composition, and what to larger more mobile species may be a linear feature may become a series of stepping stones to a smaller species. ...
... ecological corridor of any length will rarely be of uniform soil and vegetation composition, and what to larger more mobile species may be a linear feature may become a series of stepping stones to a smaller species. ...
Intro to Ecology Classwork Name
... Decide if each scenario will result in a population increase or decrease. 1. ____________________Hawks prey on squirrels. If the hawk population increases, what will happen to the squirrel population? 2. ____________________Two different species of barnacles, Chthamalus and Balanus, are competing fo ...
... Decide if each scenario will result in a population increase or decrease. 1. ____________________Hawks prey on squirrels. If the hawk population increases, what will happen to the squirrel population? 2. ____________________Two different species of barnacles, Chthamalus and Balanus, are competing fo ...
Biological Dynamics of Forest Fragments Project
The Biological Dynamics of Forest Fragments Project, originally called the Minimum Critical Size of Ecosystems Project is a large-scale ecological experiment looking at the effects of habitat fragmentation on tropical rainforest; it is one of the most expensive biology experiments ever run. The experiment, which was established in 1979 is located near Manaus, in the Brazilian Amazon. The project is jointly managed by the Smithsonian Institution and INPA, the Brazilian Institute for Research in the Amazon.The project was initiated in 1979 by Thomas Lovejoy to investigate the SLOSS debate. Initially named the Minimum Critical Size of Ecosystems Project, the project created forest fragments of sizes 1 hectare (2 acres), 10 hectares (25 acres), and 100 hectares (247 acres). Data were collected prior to the creation of the fragments and studies of the effects of fragmentation now exceed 25 years.As of October 2010 562 publications and 143 graduate dissertations and theses had emerged from the project.