Northern Basin and Range Ecoregion - Oregon 4-H
... on-going recovery from historic overgrazing and uncontrolled off-highway vehicle use are issues in this ecoregion. Other forms of recreational ...
... on-going recovery from historic overgrazing and uncontrolled off-highway vehicle use are issues in this ecoregion. Other forms of recreational ...
Response of endemic and exotic earthworm communities to
... We hypothesise that restoration from agricultural land to native vegetation may be sufficient to restore endemic earthworm communities providing that nearby source populations are available for natural recolonisatio ...
... We hypothesise that restoration from agricultural land to native vegetation may be sufficient to restore endemic earthworm communities providing that nearby source populations are available for natural recolonisatio ...
Rapid, landscape scale responses in riparian tundra
... 15 × 15 m, were located so that one side was aligned with the edge of a willow shrub patch and the grid extending into the herbaceous vegetation (see Fig. 1). Only grids that were covered by less than 30% of stones or mire and with no signs of recent flooding (as judged from the presence of river de ...
... 15 × 15 m, were located so that one side was aligned with the edge of a willow shrub patch and the grid extending into the herbaceous vegetation (see Fig. 1). Only grids that were covered by less than 30% of stones or mire and with no signs of recent flooding (as judged from the presence of river de ...
Eightmile Creek Watershed A Project Final Report Prepared for
... known to have major impacts on water quality and wildlife habitat. The negative impacts of agriculture on wildlife are indisputable and often diminish the ability of agricultural ecosystems to sustain viable populations. In addition to the direct habitat loss caused by the initial land use conversio ...
... known to have major impacts on water quality and wildlife habitat. The negative impacts of agriculture on wildlife are indisputable and often diminish the ability of agricultural ecosystems to sustain viable populations. In addition to the direct habitat loss caused by the initial land use conversio ...
2. Results - IHE Delft Institute for Water Education
... impacts of land use on vegetation. Clearing of bush for cultivation could be the major cause of reduction in woody cover. Declining productivity in other areas due to dry conditions could have prompted an expansion of cultivation in Intunjambili. The land cover changes obtained in Intunjambili were ...
... impacts of land use on vegetation. Clearing of bush for cultivation could be the major cause of reduction in woody cover. Declining productivity in other areas due to dry conditions could have prompted an expansion of cultivation in Intunjambili. The land cover changes obtained in Intunjambili were ...
The Role of Bankside Habitat in River Ecology
... provide most of the faunaI, diversity and furnish cover for both adult and juvenile fish. This area requires basic research to support, underpin and enable development of optimal management procedures. Knowledge of this habitat is essential in order to sustain faunal- and floral diversity, encourage ...
... provide most of the faunaI, diversity and furnish cover for both adult and juvenile fish. This area requires basic research to support, underpin and enable development of optimal management procedures. Knowledge of this habitat is essential in order to sustain faunal- and floral diversity, encourage ...
The American Alligator: An Indicator Species for Everglades
... 1. This document is WEC313, one of a series of the Wildlife Ecology and Conservation Department, UF/IFAS Extension. Original publication date October 2011. Reviewed October 2014. Visit the EDIS website at http://edis.ifas.ufl.edu. 2. Rebecca G. Harvey, environmental education coordinator; and Fran ...
... 1. This document is WEC313, one of a series of the Wildlife Ecology and Conservation Department, UF/IFAS Extension. Original publication date October 2011. Reviewed October 2014. Visit the EDIS website at http://edis.ifas.ufl.edu. 2. Rebecca G. Harvey, environmental education coordinator; and Fran ...
Ecologically Appropriate Plant Materials for
... types is innately appealing, the question should be asked as to whether this option is truly the most desirable or feasible. Practitioners sometimes assume that autogenic processes will be triggered once desired species composition and structure have been implemented, but this is unlikely to be a va ...
... types is innately appealing, the question should be asked as to whether this option is truly the most desirable or feasible. Practitioners sometimes assume that autogenic processes will be triggered once desired species composition and structure have been implemented, but this is unlikely to be a va ...
Fauna Management Strategy
... for their existence. Wildlife habitat within the region, however, has been altered by human centered development and the precious interconnectivity of natural ecosystems fragmented to the point where many species are threatened, endangered and even eliminated. Wildlife habitat restoration and ecosys ...
... for their existence. Wildlife habitat within the region, however, has been altered by human centered development and the precious interconnectivity of natural ecosystems fragmented to the point where many species are threatened, endangered and even eliminated. Wildlife habitat restoration and ecosys ...
Etowah River Basin Stressors Analysis - Web8
... The Etowah River Basin (Figure 1-1) is a highly biodiverse and highly imperiled aquatic ecosystem located just north of Atlanta, Georgia. Its precarious status and diversity of fauna have made it an object of scientific research for the last several decades. In recent years it has also become the fo ...
... The Etowah River Basin (Figure 1-1) is a highly biodiverse and highly imperiled aquatic ecosystem located just north of Atlanta, Georgia. Its precarious status and diversity of fauna have made it an object of scientific research for the last several decades. In recent years it has also become the fo ...
CHAPTER THREE - Southern California Wetlands Recovery Project
... structural basin estuaries (Ferren et al. 1995). The size of estuarine wetlands is dependent on a number of factors, including topography, geology, and hydrology. Tidal wetlands are highly impacted by sediment flows because small changes in marsh topography (e.g., 6 inches) can have large impacts on ...
... structural basin estuaries (Ferren et al. 1995). The size of estuarine wetlands is dependent on a number of factors, including topography, geology, and hydrology. Tidal wetlands are highly impacted by sediment flows because small changes in marsh topography (e.g., 6 inches) can have large impacts on ...
Appendix A: Freshwater Mussels
... Restoration and management of streams and rivers, with an emphasis on reducing stream fragmentation and restoring natural flow regimes, reducing pollution and riparian disturbance. Primary Threat Addressed: Habitat degradation and mortality from dams that alter hydrology upstream and downstream Spec ...
... Restoration and management of streams and rivers, with an emphasis on reducing stream fragmentation and restoring natural flow regimes, reducing pollution and riparian disturbance. Primary Threat Addressed: Habitat degradation and mortality from dams that alter hydrology upstream and downstream Spec ...
EXTENT OF CALIFORNIA’S PERENNIAL AND NON-PERENNIAL STREAMS
... aquatic life in California’s streams and rivers. Although these ecosystems are non-perennial, they often support rich biotic communities both in the stream channels and in the surrounding riparian zones. In addition, these streams collectively drain large areas of land, which can result in concentra ...
... aquatic life in California’s streams and rivers. Although these ecosystems are non-perennial, they often support rich biotic communities both in the stream channels and in the surrounding riparian zones. In addition, these streams collectively drain large areas of land, which can result in concentra ...
Nevada Wildlife Action Plan - Nevada Department of Wildlife
... which has moved into riparian habitats on the Virgin and Muddy Rivers and Meadow Valley Wash after releases in adjoining states, has resulted in patchy but widespread defoliation of these monoculture tamarisk stands. As these large areas of tamarisk are lost in the future, this could result in an in ...
... which has moved into riparian habitats on the Virgin and Muddy Rivers and Meadow Valley Wash after releases in adjoining states, has resulted in patchy but widespread defoliation of these monoculture tamarisk stands. As these large areas of tamarisk are lost in the future, this could result in an in ...
Examining food webs and trophic dynamics across a stream
... Cross-System Comparison of Stable Isotopes In the reference stream system, δ13C values ranged from -38 to -24, with most organisms ranging between -27 and -29. Organic matter in this stream had a carbon signature most similar to terrestrial values (-29, whereas the δ13C value for trees is -28). δ15 ...
... Cross-System Comparison of Stable Isotopes In the reference stream system, δ13C values ranged from -38 to -24, with most organisms ranging between -27 and -29. Organic matter in this stream had a carbon signature most similar to terrestrial values (-29, whereas the δ13C value for trees is -28). δ15 ...
INTRODUCTION LIFE STAGES So what did come first, the chicken
... entire population has reached the spawning ground. The run will not begin until environmental conditions are appropriate for each species. Salmonids depend on specific water and air temperatures, as well as stream access and flow, to increase their odds of survivorship. A heterogeneous stream enviro ...
... entire population has reached the spawning ground. The run will not begin until environmental conditions are appropriate for each species. Salmonids depend on specific water and air temperatures, as well as stream access and flow, to increase their odds of survivorship. A heterogeneous stream enviro ...
Effective Landscape Restoration for Native Biodiversity in Northern
... Approximately 300 EVC’s have been described. EVCs are derived from land system (eg, geo morphology, rainfall), vegetation structure, floristic infor mation and other environmental information including a spect, fire frequency and e cological responses to disturbance. They describe local patterns of ...
... Approximately 300 EVC’s have been described. EVCs are derived from land system (eg, geo morphology, rainfall), vegetation structure, floristic infor mation and other environmental information including a spect, fire frequency and e cological responses to disturbance. They describe local patterns of ...
Middle Rio Grande Basin
... health and diversity of Middle Rio Grande Basin ecosystems — the forests, grasslands, and shrublands, and the species that inhabit them. Many organizations, including federal, state, municipal, tribal, and private entities, have contributed to these efforts, with some success. For example, the Middl ...
... health and diversity of Middle Rio Grande Basin ecosystems — the forests, grasslands, and shrublands, and the species that inhabit them. Many organizations, including federal, state, municipal, tribal, and private entities, have contributed to these efforts, with some success. For example, the Middl ...
Biodiversity Conservation Guide for Farmers and Ranchers in Alberta
... Beyond genetic and species diversity, biodiversity also includes the variety of unique associations that occur between species within a particular area. This type of diversity is termed community diversity. Many of us are familiar with some of the clearly distinct communities of life in Alberta. For ...
... Beyond genetic and species diversity, biodiversity also includes the variety of unique associations that occur between species within a particular area. This type of diversity is termed community diversity. Many of us are familiar with some of the clearly distinct communities of life in Alberta. For ...
preliminary ecological survey for the proposed luiperdshoek
... pastoral activities in the past have significantly altered the structure and composition of the vegetation of this unit. In some areas Prosopis gladulosa var. tooreyana shows potential to become a serious problem, especially around natural springs or aquifers as well as perennial (Orange River) and ...
... pastoral activities in the past have significantly altered the structure and composition of the vegetation of this unit. In some areas Prosopis gladulosa var. tooreyana shows potential to become a serious problem, especially around natural springs or aquifers as well as perennial (Orange River) and ...
SURVEY OF VEGETATION AND HABITAT IN KEY RIPARIAN ZONES
... © Department of Territory and Municipal Services, Canberra, 2009 Information contained in this publication may be copied or reproduced for study, research, information or educational purposes, subject to appropriate referencing of the source. This document should be cited as: Johnsto ...
... © Department of Territory and Municipal Services, Canberra, 2009 Information contained in this publication may be copied or reproduced for study, research, information or educational purposes, subject to appropriate referencing of the source. This document should be cited as: Johnsto ...
COASTAL TAILED FROG Ascaphus truei
... riparian reserve zone on small streams where “game” fish are not present. However, they do recommend that forest practices in management zones adjacent to streams classified as S4–S6 (small fish or non fish bearing) be planned and implemented to meet riparian objectives. These objectives can include ...
... riparian reserve zone on small streams where “game” fish are not present. However, they do recommend that forest practices in management zones adjacent to streams classified as S4–S6 (small fish or non fish bearing) be planned and implemented to meet riparian objectives. These objectives can include ...
The effects of amphibian population declines on the
... The aquatic larval stages of most amphibians feed on algae, detritus, or other animals, depending on species. Tadpoles, many of which are primary consumers, have been shown to influence ecosystem structure and function by altering algal communities, patterns of primary production, and organic matter ...
... The aquatic larval stages of most amphibians feed on algae, detritus, or other animals, depending on species. Tadpoles, many of which are primary consumers, have been shown to influence ecosystem structure and function by altering algal communities, patterns of primary production, and organic matter ...
Feb cover final.qxd
... The aquatic larval stages of most amphibians feed on algae, detritus, or other animals, depending on species. Tadpoles, many of which are primary consumers, have been shown to influence ecosystem structure and function by altering algal communities, patterns of primary production, and organic matter ...
... The aquatic larval stages of most amphibians feed on algae, detritus, or other animals, depending on species. Tadpoles, many of which are primary consumers, have been shown to influence ecosystem structure and function by altering algal communities, patterns of primary production, and organic matter ...
Chances and challenges in the conservation of
... sometimes many thousands of years later (Winter et al., 1998). As a result, groundwater ecosystems are ‘open’ systems through which water and energy flows, matter is processed in various ways and, depending on the length of the subsurface flow path and residence time, exfiltrating groundwater can influe ...
... sometimes many thousands of years later (Winter et al., 1998). As a result, groundwater ecosystems are ‘open’ systems through which water and energy flows, matter is processed in various ways and, depending on the length of the subsurface flow path and residence time, exfiltrating groundwater can influe ...
Riparian-zone restoration
Riparian-zone restoration is the ecological restoration of riparian-zone habitats of streams, rivers, springs, lakes, floodplains, and other hydrologic ecologies. A riparian zone or riparian area is the interface between land and a river or stream. Riparian is also the proper nomenclature for one of the fifteen terrestrial biomes of the earth; the habitats of plant and animal communities along the margins and river banks are called riparian vegetation, characterized by Aquatic plants and animals that favor them. Riparian zones are significant in ecology, environmental management, and civil engineering because of their role in soil conservation, their habitat biodiversity, and the influence they have on fauna and aquatic ecosystems, including grassland, woodland, wetland or sub-surface features such as water tables. In some regions the terms riparian woodland, riparian forest, riparian buffer zone, or riparian strip are used to characterize a riparian zone.The need for Riparian-zone restoration has come about because riparian zones have been degraded throughout much of the world by the activities of mankind affecting natural geologic forces. The unique biodiversity of riparian ecosystems and the importance of riparian zones in preventing erosion, protecting water quality, providing habitat and wildlife corridors, and maintaining the health of in-stream biota (Aquatic organisms) has led to a surge of restoration activities aimed at riparian ecosystems in the last few decades. Restoration efforts are typically guided by an ecological understanding of riparian-zone processes and knowledge of the causes of degradation. They are often interdependent with stream restoration projects.