Chapter 7
... Disturbance Disturbance: a distinct event that disrupts an ecosystem or community • examples of natural disturbances: fires, hurricanes, tornadoes, droughts, & floods ...
... Disturbance Disturbance: a distinct event that disrupts an ecosystem or community • examples of natural disturbances: fires, hurricanes, tornadoes, droughts, & floods ...
ecosystem status and trends 2010
... small, remnant patches. Grassland health has also suffered. Over the long term, changes in natural disturbance regimes due to factors like fire suppression and confined cattle grazing have had negative impacts on grasslands. Sound stewardship practices in some areas are helping to address the proble ...
... small, remnant patches. Grassland health has also suffered. Over the long term, changes in natural disturbance regimes due to factors like fire suppression and confined cattle grazing have had negative impacts on grasslands. Sound stewardship practices in some areas are helping to address the proble ...
SIP - for CD - Texas Oak Wilt | texasoakwilt.org
... was restricted to areas that burned infrequently, e.g., rocky slopes, hilltops, and the cooler, more moist canyons. Ashe juniper is highly adapted to the Hill Country, hence current land conditions have fostered its encroachment. To manage effectively, one needs to understand its biology. The male t ...
... was restricted to areas that burned infrequently, e.g., rocky slopes, hilltops, and the cooler, more moist canyons. Ashe juniper is highly adapted to the Hill Country, hence current land conditions have fostered its encroachment. To manage effectively, one needs to understand its biology. The male t ...
DOC file - City of Fort Collins Public Records
... High frequency – mixed severity fire is the dominant ecological process. ...
... High frequency – mixed severity fire is the dominant ecological process. ...
Ecosystem Health Concepts and Practice
... Despite its many benefits, the methods used and its occupation of more land than any other component of human development result in agriculture playing an immense role in ecological dysfunction. Agriculture and other businesses cause large-scale fragmentation and degradation of habitat. But after lo ...
... Despite its many benefits, the methods used and its occupation of more land than any other component of human development result in agriculture playing an immense role in ecological dysfunction. Agriculture and other businesses cause large-scale fragmentation and degradation of habitat. But after lo ...
Ecology
... 98. Why is a quadrat unsuitable for studying most animal populations? 99. Suggest a plant that would not be suitable to survey using a quadrat. 100. State one possible source of error in a survey of an ecosystem. 101. Decomposition is essential for the addition of nutrients to the soil. Explain the ...
... 98. Why is a quadrat unsuitable for studying most animal populations? 99. Suggest a plant that would not be suitable to survey using a quadrat. 100. State one possible source of error in a survey of an ecosystem. 101. Decomposition is essential for the addition of nutrients to the soil. Explain the ...
Niche theory and guilds
... 2. realized (post-interactive) niche - actual niche Example from Orians and Willson (1964) involving Red-winged Blackbirds (Agelaius phoeniceus) and Yellow-headed Blackbirds (Xanthocephalus xanthocephalus) “Ecological release” – mongoose example Ecological niches can thus be defined in terms of: -re ...
... 2. realized (post-interactive) niche - actual niche Example from Orians and Willson (1964) involving Red-winged Blackbirds (Agelaius phoeniceus) and Yellow-headed Blackbirds (Xanthocephalus xanthocephalus) “Ecological release” – mongoose example Ecological niches can thus be defined in terms of: -re ...
Chapter 22: Humans and the Environment
... destruction, the transfer of invasive species to new habitats, harvesting, and hunting. – This loss of species has both known and unknown effects on ecosystems. ...
... destruction, the transfer of invasive species to new habitats, harvesting, and hunting. – This loss of species has both known and unknown effects on ecosystems. ...
Ecological Succession
... Primary: • First soil must be established • Pioneer species = the first to colonize • usually mosses and lichen ...
... Primary: • First soil must be established • Pioneer species = the first to colonize • usually mosses and lichen ...
Relative abundance I: commonness and rarity
... Pseudo-rarity • Global scale is not the only scale at which populations are managed: ...
... Pseudo-rarity • Global scale is not the only scale at which populations are managed: ...
Intro Ecology and the Biosphere PPT - NMSI
... respond to information essential to life processes ...
... respond to information essential to life processes ...
Community Ecology
... Sale 1977, 1978, Sale & Williams 1982 - lottery process in coral reef fish community assembly - Chesson’s storage hypothesis (requires species-specific environmental responses, buffered population growth, and covariance between environment and competition to facilitate coexistence/diversity) - resul ...
... Sale 1977, 1978, Sale & Williams 1982 - lottery process in coral reef fish community assembly - Chesson’s storage hypothesis (requires species-specific environmental responses, buffered population growth, and covariance between environment and competition to facilitate coexistence/diversity) - resul ...
Physical-biological Coupling in Marine Ecosystems
... continuum defined by space and time underpinned much of the research that was undertaken during GLOBEC • GLOBEC --> View has evolved to one in which marine ecosystem variability and population recruitment result from the integration of processes across all scales and includes direct as well as indir ...
... continuum defined by space and time underpinned much of the research that was undertaken during GLOBEC • GLOBEC --> View has evolved to one in which marine ecosystem variability and population recruitment result from the integration of processes across all scales and includes direct as well as indir ...
The Balance of Nature: What Is It and Why Care?
... level, for example, can sum to give a relatively constant plant community as long as not all species increase or decrease together. These researchers, in a sense, changed the stability question by embracing population level variation in density and focusing on the implications of population variabil ...
... level, for example, can sum to give a relatively constant plant community as long as not all species increase or decrease together. These researchers, in a sense, changed the stability question by embracing population level variation in density and focusing on the implications of population variabil ...
PhD thesis of Mgr. Kateřina Kopalová `Taxonomy, ecology and
... This first ecological study on the freshwater diatoms of JRI revealed important environmental information on diatoms in a location at the boundary between Maritime and Continental Antarctica. A transfer function was established for conductivity that can be used to reconstruct historical changes acro ...
... This first ecological study on the freshwater diatoms of JRI revealed important environmental information on diatoms in a location at the boundary between Maritime and Continental Antarctica. A transfer function was established for conductivity that can be used to reconstruct historical changes acro ...
Title pages, table of contents, abstract
... between the Hawai`i Department of Land and Natural Resources, Divisions of Forestry and Wildlife and State Parks, the U.S. Fish and Wildlife Service, and the Hawai`i Chapter of The Wildlife Society. Ka`ena Point Natural Area Reserve (NAR) hosts one of the largest seabird colonies in the main Hawaiia ...
... between the Hawai`i Department of Land and Natural Resources, Divisions of Forestry and Wildlife and State Parks, the U.S. Fish and Wildlife Service, and the Hawai`i Chapter of The Wildlife Society. Ka`ena Point Natural Area Reserve (NAR) hosts one of the largest seabird colonies in the main Hawaiia ...
Biodiversity changes - causes, consequences and management
... many goods and services valued by society. With global change, distributional and compositional changes of benthic and pelagic communities are occurring and/or projected, raising concern about consequences for this system. The Science Using projections of abiotic/biotic drivers (climate change, eutr ...
... many goods and services valued by society. With global change, distributional and compositional changes of benthic and pelagic communities are occurring and/or projected, raising concern about consequences for this system. The Science Using projections of abiotic/biotic drivers (climate change, eutr ...
13.1 Ecologists Study Relationships
... – Tertiary consumers are carnivores that eat secondary consumers. – Omnivores, such as humans that eat both plants and animals, may be listed at different trophic levels in different food chains. ...
... – Tertiary consumers are carnivores that eat secondary consumers. – Omnivores, such as humans that eat both plants and animals, may be listed at different trophic levels in different food chains. ...
Restoration ecology
Restoration ecology emerged as a separate field in ecology in the 1980s. It is the scientific study supporting the practice of ecological restoration, which is the practice of renewing and restoring degraded, damaged, or destroyed ecosystems and habitats in the environment by active human intervention and action. The term ""restoration ecology"" is therefore commonly used for the academic study of the process, whereas the term ""ecological restoration"" is commonly used for the actual project or process by restoration practitioners.