3.A Natural Disturbances
... Dams, channelization, and the introduction of exotic species represent forms of disturbance found in many if not all of the land uses discussed later in this chapter. Therefore, they are presented as separate discussions in advance of more specific land use activities that potentially introduce dist ...
... Dams, channelization, and the introduction of exotic species represent forms of disturbance found in many if not all of the land uses discussed later in this chapter. Therefore, they are presented as separate discussions in advance of more specific land use activities that potentially introduce dist ...
Pronghorn Briefing Document for Sagebrush Strategy
... relationship/dependency of pronghorn and sagebrush (by taxa), broken down by geographic area. We are likely to ultimately use ecoregions, but other breakdowns work particularly if based on ecological rather than political boundaries. It would be helpful if areas where sagebrush is particularly criti ...
... relationship/dependency of pronghorn and sagebrush (by taxa), broken down by geographic area. We are likely to ultimately use ecoregions, but other breakdowns work particularly if based on ecological rather than political boundaries. It would be helpful if areas where sagebrush is particularly criti ...
Investigation of Behavioral Change in Amphibians as a
... amphibian habitat has been shown to negatively affect amphibian species richness and distribution when the road is found within one kilometer of amphibian habitat (Cosentino 2014). Anthropogenic noise also leads to an increase in male frogs’ vocalization frequency when anthropogenic disturbance occu ...
... amphibian habitat has been shown to negatively affect amphibian species richness and distribution when the road is found within one kilometer of amphibian habitat (Cosentino 2014). Anthropogenic noise also leads to an increase in male frogs’ vocalization frequency when anthropogenic disturbance occu ...
Species` Distribution Modeling for Conservation Educators and
... Introduction and Theory Introduction Predicting species’ distributions has become an important component of conservation planning in recent years, and a wide variety of modeling techniques have been developed for this purpose (Guisan and Thuiller, 2005). These models commonly utilize associations be ...
... Introduction and Theory Introduction Predicting species’ distributions has become an important component of conservation planning in recent years, and a wide variety of modeling techniques have been developed for this purpose (Guisan and Thuiller, 2005). These models commonly utilize associations be ...
A Review of Human Disturbance Effects on Nesting Colonial
... visitation by those most interested in conserving wildlife can have detrimental effects (Boyle and Sampson 1985). Nesting colonial waterbirds are particularly vulnerable to human intrusion (Manuwal 1978). Their high visibility, animated behavior and physical beauty tend to attract human visitors. Wh ...
... visitation by those most interested in conserving wildlife can have detrimental effects (Boyle and Sampson 1985). Nesting colonial waterbirds are particularly vulnerable to human intrusion (Manuwal 1978). Their high visibility, animated behavior and physical beauty tend to attract human visitors. Wh ...
fragmentation of terrestrial habitat
... decades, wildlife biologists have assessed effects of habitat fragmentation on wildlife while billions of public and private dollars have been spent on habitat acquisition and wildlife conservation efforts to offset the effects of fragmentation. Recently, however, the conceptual basis of habitat fra ...
... decades, wildlife biologists have assessed effects of habitat fragmentation on wildlife while billions of public and private dollars have been spent on habitat acquisition and wildlife conservation efforts to offset the effects of fragmentation. Recently, however, the conceptual basis of habitat fra ...
Survey of Seeps and Springs within the Bureau of Land
... SS-A (N. Fork Escalante Creek)........................................................................................................... 43 SS-B (John’s Spring)............................................................................................................................ 46 SS-C (Nokom ...
... SS-A (N. Fork Escalante Creek)........................................................................................................... 43 SS-B (John’s Spring)............................................................................................................................ 46 SS-C (Nokom ...
Lesson Overview
... An abiotic factor is any nonliving part of the environment, such as sunlight, heat, precipitation, humidity, wind or water currents, soil type, etc. For example, a bullfrog could be affected by abiotic factors such as water availability, temperature, and humidity. ...
... An abiotic factor is any nonliving part of the environment, such as sunlight, heat, precipitation, humidity, wind or water currents, soil type, etc. For example, a bullfrog could be affected by abiotic factors such as water availability, temperature, and humidity. ...
Conservation Plan Middle Connecticut River
... use in the Connecticut River valley. At the same time, grassland nesting songbirds are often unable to reproduce successfully in fields that are actively mowed for hay, and there is need to consider late mowing in areas that are no longer used or less suitable for agriculture. The other target consi ...
... use in the Connecticut River valley. At the same time, grassland nesting songbirds are often unable to reproduce successfully in fields that are actively mowed for hay, and there is need to consider late mowing in areas that are no longer used or less suitable for agriculture. The other target consi ...
stability of terrestrial ecosystems as to pest organisms
... decades, when there are no problems with its density. Further, dendrochonologic studies had shown that in past centuries, before structure of forest ecosystems was disturbed by people, outbreaks of the species occurred, but host-trees survived. Therefore, density of the species hardly reached the va ...
... decades, when there are no problems with its density. Further, dendrochonologic studies had shown that in past centuries, before structure of forest ecosystems was disturbed by people, outbreaks of the species occurred, but host-trees survived. Therefore, density of the species hardly reached the va ...
Semi-arid swamps
... and unconnected elements within landscapes that are dominated by dryland wooded ecosystems or cleared agricultural land. They may merge with surrounding ecosystems without obvious boundaries—their management will require an integrated approach, taking account of all landscape elements. ...
... and unconnected elements within landscapes that are dominated by dryland wooded ecosystems or cleared agricultural land. They may merge with surrounding ecosystems without obvious boundaries—their management will require an integrated approach, taking account of all landscape elements. ...
Comparing aquatic and terrestrial grazing ecosystems: is the grass
... Although herbivores can facilitate primary production across a variety of ecosystems, many studies in both terrestrial and aquatic systems document suppression by or no effect of herbivory on primary productivity rather than facilitation (Zieman et al. 1984, Williams 1988, Briske 1993, Knapp et al. ...
... Although herbivores can facilitate primary production across a variety of ecosystems, many studies in both terrestrial and aquatic systems document suppression by or no effect of herbivory on primary productivity rather than facilitation (Zieman et al. 1984, Williams 1988, Briske 1993, Knapp et al. ...
Extinction thresholds: insights from simple models
... values of some variable of interest beyond which a population can no longer persist. In this paper I will review very simple deterministic models which predict extinction thresholds. In particular, I will focus on demographic thresholds, that is, critical population values below which the population ...
... values of some variable of interest beyond which a population can no longer persist. In this paper I will review very simple deterministic models which predict extinction thresholds. In particular, I will focus on demographic thresholds, that is, critical population values below which the population ...
Are We Missing the Forest for the Trees?
... My family is well-‐‑known as the most bizarrely supportive group in the world. This is a fact for which I am endlessly grateful. It’s because of their tireless support that I survived this Ph.D. ...
... My family is well-‐‑known as the most bizarrely supportive group in the world. This is a fact for which I am endlessly grateful. It’s because of their tireless support that I survived this Ph.D. ...
significant habitats - the Town of Poughkeepsie
... has a population of roughly 41,800 residents (2000 Census). The town’s landscape is composed of small hills and stream valleys. All of the land in Poughkeepsie ultimately drains into the Hudson River. The main Hudson River tributary is Wappinger Creek, which forms most of the eastern and southern bo ...
... has a population of roughly 41,800 residents (2000 Census). The town’s landscape is composed of small hills and stream valleys. All of the land in Poughkeepsie ultimately drains into the Hudson River. The main Hudson River tributary is Wappinger Creek, which forms most of the eastern and southern bo ...
Demographic Costs Associated with Differences in Habitat Space
... availability and distribution of resources, which in turn determines the suitability of a habitat for a species and delimits its range [8–11]. This niche space consists of multiple habitat axes because different environmental characteristics may be needed for different aspects of a species’ life his ...
... availability and distribution of resources, which in turn determines the suitability of a habitat for a species and delimits its range [8–11]. This niche space consists of multiple habitat axes because different environmental characteristics may be needed for different aspects of a species’ life his ...
Deterministic and stochastic forces in community ecology:
... While neutral theory may not be a true null model in the parameter-free statistical sense (Gotelli and McGill 2006), it does provide predictions about ecological communities following a highly reduced set of interactions. Deviations from these predictions in empirical studies indicate the importance ...
... While neutral theory may not be a true null model in the parameter-free statistical sense (Gotelli and McGill 2006), it does provide predictions about ecological communities following a highly reduced set of interactions. Deviations from these predictions in empirical studies indicate the importance ...
Marine Ecology Progress Series 341:303
... phytoplankton blooms; this is inaccurate (cf. NRC 2004). The potential benefits of filtration by oysters as stated in the popular press1 ignore the realities of the scale of restoration required to achieve such benefits, and we concur with Pomeroy et al. (2006) that using this position to support th ...
... phytoplankton blooms; this is inaccurate (cf. NRC 2004). The potential benefits of filtration by oysters as stated in the popular press1 ignore the realities of the scale of restoration required to achieve such benefits, and we concur with Pomeroy et al. (2006) that using this position to support th ...
Recovery Strategy for the Butler`s Gartersnake (Thamnophis butleri
... foreseeable future to sustain the population or improve its abundance. Yes. There are currently 27 to 38 extant 3 locations 4 of Butler’s Gartersnake in Canada, which occur within four geographic regions. The species is frequently locally abundant where it does occur and may be the most common snake ...
... foreseeable future to sustain the population or improve its abundance. Yes. There are currently 27 to 38 extant 3 locations 4 of Butler’s Gartersnake in Canada, which occur within four geographic regions. The species is frequently locally abundant where it does occur and may be the most common snake ...
Importance of biogenic substrates for the stone crab
... utilization of different biogenic substrates by this species in the intertidal zone. Sampling was carried out by hand at Ubatuba, State of São Paulo, Brazil. Crabs were captured among rocks or in association with three different biogenic substrates: Phragmatopoma lapidosa, Sargassum cymosum and Schi ...
... utilization of different biogenic substrates by this species in the intertidal zone. Sampling was carried out by hand at Ubatuba, State of São Paulo, Brazil. Crabs were captured among rocks or in association with three different biogenic substrates: Phragmatopoma lapidosa, Sargassum cymosum and Schi ...
Species coexistence and the superior ability of an invasive species
... We tested the generality of interactions by including crabs of varying sizes in the experiment (carapace width range of 12–23 mm), however, crabs used in any particular replicate were matched to have similar carapace width (within 3 mm). Enclosures were 30 cm length " 30 cm width " 15 cm height wit ...
... We tested the generality of interactions by including crabs of varying sizes in the experiment (carapace width range of 12–23 mm), however, crabs used in any particular replicate were matched to have similar carapace width (within 3 mm). Enclosures were 30 cm length " 30 cm width " 15 cm height wit ...
30 years of the endangered species act
... habitat, alligators were not able to eat, mate, and raise their young. Even worse, however, was the hunting that decimated the alligator population. To their detriment, American alligators produce high-quality leather that was coveted during the early 20th century. So many of the reptiles were kille ...
... habitat, alligators were not able to eat, mate, and raise their young. Even worse, however, was the hunting that decimated the alligator population. To their detriment, American alligators produce high-quality leather that was coveted during the early 20th century. So many of the reptiles were kille ...
Diversity analysis: A fresh Approach
... poor choices can cause a field to stagnate, while insightful choices can make it easy to find regularities in nature. In this regard diversity analysis in ecology has always been a polemical field, with many differing opinions about how to best characterize biological diversity. There have been so m ...
... poor choices can cause a field to stagnate, while insightful choices can make it easy to find regularities in nature. In this regard diversity analysis in ecology has always been a polemical field, with many differing opinions about how to best characterize biological diversity. There have been so m ...
MS Word Document - 2.1 MB - Department of Environment, Land
... 24 months post-burn. For locations with native species at risk from fox predation, the instigation of a broad-scale fox reduction program would be advisable. This program should commence 2–3 months before the planned burn is scheduled, because it takes time to reduce the local fox population. Fox co ...
... 24 months post-burn. For locations with native species at risk from fox predation, the instigation of a broad-scale fox reduction program would be advisable. This program should commence 2–3 months before the planned burn is scheduled, because it takes time to reduce the local fox population. Fox co ...
Reconciliation ecology
Reconciliation ecology is the branch of ecology which studies ways to encourage biodiversity in human-dominated ecosystems. Michael Rosenzweig first articulated the concept in his book Win-Win Ecology, based on the theory that there is not enough area for all of earth’s biodiversity to be saved within designated nature preserves. Therefore, humans should increase biodiversity in human-dominated landscapes. By managing for biodiversity in ways that do not decrease human utility of the system, it is a ""win-win"" situation for both human use and native biodiversity. The science is based in the ecological foundation of human land-use trends and species-area relationships. It has many benefits beyond protection of biodiversity, and there are numerous examples of it around the globe. Aspects of reconciliation ecology can already be found in management legislation, but there are challenges in both public acceptance and ecological success of reconciliation attempts.