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... speciation: the process by which groups of previously-interbreeding organisms become unable (or unwilling) to successfully mate with each other and produce fertile offspring. Ecologists may be interested in macroevolution as a means to make inferences regarding present-day ecological questions. Scie ...
... speciation: the process by which groups of previously-interbreeding organisms become unable (or unwilling) to successfully mate with each other and produce fertile offspring. Ecologists may be interested in macroevolution as a means to make inferences regarding present-day ecological questions. Scie ...
Frogs of the ACT Region
... associated with water during breeding, many frog species can survive without being close to permanent water. Cool, damp areas such as large logs, rock and patches of undisturbed native grasses provide important non-breeding shelter. Some species also shelter in cracks in the soil, or in deserted inv ...
... associated with water during breeding, many frog species can survive without being close to permanent water. Cool, damp areas such as large logs, rock and patches of undisturbed native grasses provide important non-breeding shelter. Some species also shelter in cracks in the soil, or in deserted inv ...
Deakin Research Online - DRO
... Abstract. Fire is both a widespread natural disturbance that affects the distribution of species and a tool that can be used to manage habitats for species. Knowledge of temporal changes in the occurrence of species after fire is essential for conservation management in fireprone environments. Two key ...
... Abstract. Fire is both a widespread natural disturbance that affects the distribution of species and a tool that can be used to manage habitats for species. Knowledge of temporal changes in the occurrence of species after fire is essential for conservation management in fireprone environments. Two key ...
Spatial variation and effects of habitat on temperate reef fish
... habitat characteristics is to recognize that observed patterns are dependent on the spatial scale of observation (e.g., Andrew and Mapstone, 1987; Wiens, 1989; Tolimieri, 1995; Chesson, 1998; Sale, 1998). There have been several studies of spatial patterns of distributions of fish at several spatial ...
... habitat characteristics is to recognize that observed patterns are dependent on the spatial scale of observation (e.g., Andrew and Mapstone, 1987; Wiens, 1989; Tolimieri, 1995; Chesson, 1998; Sale, 1998). There have been several studies of spatial patterns of distributions of fish at several spatial ...
Conservation Action Planning
... Explorers and squatters initially disliked the mallee because it contained little water or grass for stock. Therefore, land with access to the Murray River floodplain was the first to be used for sheep grazing. The first land offered for wheat-farming in the region was in close proximity to the Murr ...
... Explorers and squatters initially disliked the mallee because it contained little water or grass for stock. Therefore, land with access to the Murray River floodplain was the first to be used for sheep grazing. The first land offered for wheat-farming in the region was in close proximity to the Murr ...
Open Access
... The fact that detailed field inventories of plant communities are time-consuming may limit the spatial extent of grassland habitat surveys. If remote sensing data are able to identify grassland sites characterised by different environmental conditions and plant species diversity, then field sampling ...
... The fact that detailed field inventories of plant communities are time-consuming may limit the spatial extent of grassland habitat surveys. If remote sensing data are able to identify grassland sites characterised by different environmental conditions and plant species diversity, then field sampling ...
Monitoring Changes in Genetic Diversity (PDF Available)
... metrics’ (alpha diversity, spatial beta diversity, temporal beta diversity, and abundance). In principle all of these categories could be relevant to genetic variation. However, this expanded notion of biodiversity—which includes change over time, spatial variation and abundance—is a relatively rece ...
... metrics’ (alpha diversity, spatial beta diversity, temporal beta diversity, and abundance). In principle all of these categories could be relevant to genetic variation. However, this expanded notion of biodiversity—which includes change over time, spatial variation and abundance—is a relatively rece ...
Lepomis cyanellus (Rafinesque, 1819)
... fastest expanding invaders in the basin and the most invasive in terms of negative impacts on native fish communities L. cyanellus and other introduced predatory centrarchids are also believed to have played a part in the decline of the California tiger salamander (Ambystoma californiense) in Califo ...
... fastest expanding invaders in the basin and the most invasive in terms of negative impacts on native fish communities L. cyanellus and other introduced predatory centrarchids are also believed to have played a part in the decline of the California tiger salamander (Ambystoma californiense) in Califo ...
Vegetation Change and Ecosystem Services
... sage scrub. The purpose of this chapter is to give the reader a broad overview of annual rangeland vegetation and how it may change in response to common disturbances such as invasion, fire and grazing. Other chapters will investigate grazing, livestock and vegetation management practices. ...
... sage scrub. The purpose of this chapter is to give the reader a broad overview of annual rangeland vegetation and how it may change in response to common disturbances such as invasion, fire and grazing. Other chapters will investigate grazing, livestock and vegetation management practices. ...
Du Toit Johan Truter 1988-002
... waterhole were significantly lower in condensed tannin, and higher in total nitrogen and total phosphorus, than leaves on any of the other tree samples. ...
... waterhole were significantly lower in condensed tannin, and higher in total nitrogen and total phosphorus, than leaves on any of the other tree samples. ...
Effects of tree control method, seed addition, and introduced
... & Richardson 2012; Dickie et al. 2014), and reductions in the utility and value of agricultural and recreational land (Froude 2011). Despite a growing understanding of tree invasion impacts, the long-term outcomes for invaded sites are often unclear. Invasive trees that establish into naturally tree ...
... & Richardson 2012; Dickie et al. 2014), and reductions in the utility and value of agricultural and recreational land (Froude 2011). Despite a growing understanding of tree invasion impacts, the long-term outcomes for invaded sites are often unclear. Invasive trees that establish into naturally tree ...
SPECIES ACCOUNT – MOOSE (m-alal)
... Winter range can include clearcut areas as well as forested sites. Moose browse tends to be most abundant in natural openings as well as those areas that have been recently disturbed through fire or clearcut logging. As such, structural stage is an important variable which is strongly correlated wit ...
... Winter range can include clearcut areas as well as forested sites. Moose browse tends to be most abundant in natural openings as well as those areas that have been recently disturbed through fire or clearcut logging. As such, structural stage is an important variable which is strongly correlated wit ...
Lonesome George: The legacy
... The impressive ability to survive for extensive periods without food and water made these first chelonian colonisers well adapted for this long journey to the geologically new volcanic islands, adaptations that any natural predators could not match. Over time, the swirling currents surrounding the A ...
... The impressive ability to survive for extensive periods without food and water made these first chelonian colonisers well adapted for this long journey to the geologically new volcanic islands, adaptations that any natural predators could not match. Over time, the swirling currents surrounding the A ...
4.10 - City of Chowchilla
... annual grasses and forbs, which sprout after the first winter rains, flower and set seed during the spring and are dead by the onset of the hot dry summer. Biotic and Wildlife Habitats Agricultural land with associated irrigation/drainage ditches/ponds is the primary land use within the Planning Are ...
... annual grasses and forbs, which sprout after the first winter rains, flower and set seed during the spring and are dead by the onset of the hot dry summer. Biotic and Wildlife Habitats Agricultural land with associated irrigation/drainage ditches/ponds is the primary land use within the Planning Are ...
Tehachapi Pocket Mouse (Perognathus alticolus
... environments (Brown and Harney 1993; Price and Jenkins 1986). They dig burrows, which moves soils and provides habitat and refugia for other species, including rodents, reptiles, amphibians, birds, and invertebrates. Collection, storage, and consumption of seeds by kangaroo rats, for example, have p ...
... environments (Brown and Harney 1993; Price and Jenkins 1986). They dig burrows, which moves soils and provides habitat and refugia for other species, including rodents, reptiles, amphibians, birds, and invertebrates. Collection, storage, and consumption of seeds by kangaroo rats, for example, have p ...
Invasive Species: A Biodiversity Challenge!
... components of a system and understand the interrelationships within the system; • Determining major threats to biodiversity, including the role of humans in introducing invasive species; • Participating in environmental stewardship as it relates to invasive species; and • Exploring ways to involv ...
... components of a system and understand the interrelationships within the system; • Determining major threats to biodiversity, including the role of humans in introducing invasive species; • Participating in environmental stewardship as it relates to invasive species; and • Exploring ways to involv ...
Slide 1
... Donna Marie Bilkovic ([email protected]), Randy Chambers, Matthias Leu, Kirk Havens, & Timothy Russell Virginia Institute of Marine Science and College of William & Mary Introduction Diamondback terrapin Malaclemys terrapin is considered a keystone species for its influence on community structure of t ...
... Donna Marie Bilkovic ([email protected]), Randy Chambers, Matthias Leu, Kirk Havens, & Timothy Russell Virginia Institute of Marine Science and College of William & Mary Introduction Diamondback terrapin Malaclemys terrapin is considered a keystone species for its influence on community structure of t ...
Least-Cost Input Mixtures of Water and Nitrogen for Photosynthesis
... should be maximized in order for a plant to operate optimally. However, since there are multiple currencies operating simultaneously, viewing their relationship to carbon gain one at a time is not the best way to frame our understanding of plant ecophysiology. For example, traits or behaviors that i ...
... should be maximized in order for a plant to operate optimally. However, since there are multiple currencies operating simultaneously, viewing their relationship to carbon gain one at a time is not the best way to frame our understanding of plant ecophysiology. For example, traits or behaviors that i ...
Ten-year species action plan for the Giant Ibis Thaumatibis gigantea
... The species has declined as a result of wetland drainage for agriculture, deforestation and opportunistic hunting and egg collection. Clearance of very large areas of lowland dry forest, including parts of the Northern Plains (Preah Vihear Protected Forest, Kulen Promtep Wildlife Sanctuary) and othe ...
... The species has declined as a result of wetland drainage for agriculture, deforestation and opportunistic hunting and egg collection. Clearance of very large areas of lowland dry forest, including parts of the Northern Plains (Preah Vihear Protected Forest, Kulen Promtep Wildlife Sanctuary) and othe ...
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.