Including species interactions in risk assessments for global change
... species informs regulatory agencies. However, its value in local management has been questioned (Hulme, 2003). Local measures are assisted more by population models that include descriptions of biological processes and attributes of management methods and practices. In practice, comprehensive models ...
... species informs regulatory agencies. However, its value in local management has been questioned (Hulme, 2003). Local measures are assisted more by population models that include descriptions of biological processes and attributes of management methods and practices. In practice, comprehensive models ...
Iluka Chair Fact Sheet
... • wildflower display with an enormous variety of morphology, colour, and habit. These diverse vegetation characters are all the more interesting having evolved on nutrient poor, usually sandy soils, in a Mediterranean-type climate. Kwongan is a habitat for a diverse range of fauna, including kangaro ...
... • wildflower display with an enormous variety of morphology, colour, and habit. These diverse vegetation characters are all the more interesting having evolved on nutrient poor, usually sandy soils, in a Mediterranean-type climate. Kwongan is a habitat for a diverse range of fauna, including kangaro ...
Biomes, Ecosystems, and Communities Worksheets
... enough moisture. A huge diversity of plants can grow in hot, wet climates. The timing of precipitation also affects the growing season. In some areas, most of the precipitation falls during a single wet season (such as in California), rather than throughout the year (such as in New England). In thes ...
... enough moisture. A huge diversity of plants can grow in hot, wet climates. The timing of precipitation also affects the growing season. In some areas, most of the precipitation falls during a single wet season (such as in California), rather than throughout the year (such as in New England). In thes ...
View or download introduction
... program to protect endangered plant species. Predator-proof fencing is a relatively recent technology that was developed in New Zealand and to date over 52 fences have been constructed protecting more than 10,000 ha. The fencing excludes non-native predatory animals as small as a two-day old mouse, ...
... program to protect endangered plant species. Predator-proof fencing is a relatively recent technology that was developed in New Zealand and to date over 52 fences have been constructed protecting more than 10,000 ha. The fencing excludes non-native predatory animals as small as a two-day old mouse, ...
Progress
... multidisciplinary nature of several of the projects is refreshing and relevant. Related to this approach is the increase in consortium-based projects, which not only provide synergism between the scientists, but provide MAFF with excellent value for money. The science of the AU is developing very we ...
... multidisciplinary nature of several of the projects is refreshing and relevant. Related to this approach is the increase in consortium-based projects, which not only provide synergism between the scientists, but provide MAFF with excellent value for money. The science of the AU is developing very we ...
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... Much remains to be determined in terms of making an accurate assessment of the threat posed by Jackson’s chameleons in Hawaii, and further work is planned. For example, little is known about their precise range, elevation preference, reproductive season and rate, desiccation tolerance, and prey pref ...
... Much remains to be determined in terms of making an accurate assessment of the threat posed by Jackson’s chameleons in Hawaii, and further work is planned. For example, little is known about their precise range, elevation preference, reproductive season and rate, desiccation tolerance, and prey pref ...
Chap. 3 Extinction
... • Fossil Record – Average life span of a species – 4 million years – Average extinction rate – 2.5 species per year – Total number of species over time – 10 million – Favors successful, geographically wideranging species – Biased toward vertebrates and mollusks – Background extinction rates are pro ...
... • Fossil Record – Average life span of a species – 4 million years – Average extinction rate – 2.5 species per year – Total number of species over time – 10 million – Favors successful, geographically wideranging species – Biased toward vertebrates and mollusks – Background extinction rates are pro ...
Assessing the diversity, abundance and
... flooding interspersed with prolonged periods of low to no flow (Kemp 2004). However, the river is regulated by the Wyangala Dam (1220GL) on the main channel and Carcoar Dam (36GL) on the Belubula River tributary as well as by numerous weirs resulting in a reduction of small to medium floods as well ...
... flooding interspersed with prolonged periods of low to no flow (Kemp 2004). However, the river is regulated by the Wyangala Dam (1220GL) on the main channel and Carcoar Dam (36GL) on the Belubula River tributary as well as by numerous weirs resulting in a reduction of small to medium floods as well ...
Trophic interactions in an arid ecosystem: From decomposers to top
... In this review, the term aboveground fauna included not only organisms associated with plants, but also the epigeal fauna (some of them usually associated with litter). In contrast, belowground fauna are those organisms associated with the mineral soil. Many organisms in diverse ecosystems use both ...
... In this review, the term aboveground fauna included not only organisms associated with plants, but also the epigeal fauna (some of them usually associated with litter). In contrast, belowground fauna are those organisms associated with the mineral soil. Many organisms in diverse ecosystems use both ...
Symbiosis Stories!
... Most orchids grow high in the trees of tropical forests. The trees provide the orchids with the support to grow high and allow them to capture more sunlight than they would on the forest floor. The trees are not harmed, since the orchids neither feed on their tissues nor prevent significant amounts ...
... Most orchids grow high in the trees of tropical forests. The trees provide the orchids with the support to grow high and allow them to capture more sunlight than they would on the forest floor. The trees are not harmed, since the orchids neither feed on their tissues nor prevent significant amounts ...
ECOSYSTEM FUNCTION, PRINCIPLES OF
... There are many examples in which a change in a limiting factor alters ecosystem function. The large increase in the amount of nitrogen cycling in the environment from fertilizers and fossil fuel should have significant effects on rates of ecosystem functions since nitrogen frequently is the primary l ...
... There are many examples in which a change in a limiting factor alters ecosystem function. The large increase in the amount of nitrogen cycling in the environment from fertilizers and fossil fuel should have significant effects on rates of ecosystem functions since nitrogen frequently is the primary l ...
Ecological Overview of the Southern Plains Inventory and
... and land conversion. Therefore, restoring plant community heterogeneity that was previously present is difficult and can only be done at a drastically reduced scale. Annual precipitation within the SOPN ranges from 12 inches (31 cm) in the western plains to 39 inches (97 cm) in south-central Oklahom ...
... and land conversion. Therefore, restoring plant community heterogeneity that was previously present is difficult and can only be done at a drastically reduced scale. Annual precipitation within the SOPN ranges from 12 inches (31 cm) in the western plains to 39 inches (97 cm) in south-central Oklahom ...
articolo completo - Società Italiana Scienza della
... variation existing within the populations and individuals of each species till the genetic level and the variations observed in the communities and ecosystems reaching the functional, landscape and geographical levels. We can say that it is the total diversity and variability of living things and of ...
... variation existing within the populations and individuals of each species till the genetic level and the variations observed in the communities and ecosystems reaching the functional, landscape and geographical levels. We can say that it is the total diversity and variability of living things and of ...
Potential value of indicator species for conservation
... Standardisation would enable efficient use of resources through an increased ability to collate and compare different studies. Information gathered needs to be related to vegetation systems, as this is the level at which perception and management of the environment occurs. However, the great majorit ...
... Standardisation would enable efficient use of resources through an increased ability to collate and compare different studies. Information gathered needs to be related to vegetation systems, as this is the level at which perception and management of the environment occurs. However, the great majorit ...
Ecological Significance of Within- Species Leaf Trait Variability: A
... & Vitousek 2001). Consequently, within-species trait variability may be an important alternative mechanism by which plant communities respond to local scale heterogeneity (Sultan 2000), and could help explain the absence of species diversity-heterogeneity relationships found in some studies (e.g., G ...
... & Vitousek 2001). Consequently, within-species trait variability may be an important alternative mechanism by which plant communities respond to local scale heterogeneity (Sultan 2000), and could help explain the absence of species diversity-heterogeneity relationships found in some studies (e.g., G ...
Collapse of the world`s largest herbivores
... every major ecosystem on Earth except Antarctica. Here, we consider the 74 wild herbivore species with mean adult body masses ≥100 kg. These largest species represent four orders (Proboscidea, Primates, Cetartiodactyla, and Perissodactyla) and 11 families (Elephantidae, Rhinocerotidae, Hippopotamida ...
... every major ecosystem on Earth except Antarctica. Here, we consider the 74 wild herbivore species with mean adult body masses ≥100 kg. These largest species represent four orders (Proboscidea, Primates, Cetartiodactyla, and Perissodactyla) and 11 families (Elephantidae, Rhinocerotidae, Hippopotamida ...
Do subordinate species punch above their weight? Evidence from
... of ecological communities. Understanding the link between the relative abundance of a species and its contribution to ecosystem function is key to predicting ecosystem stability over time or during perturbations. According to the ‘mass ratio hypothesis’ (Grime, 1998), proportional inputs to primary ...
... of ecological communities. Understanding the link between the relative abundance of a species and its contribution to ecosystem function is key to predicting ecosystem stability over time or during perturbations. According to the ‘mass ratio hypothesis’ (Grime, 1998), proportional inputs to primary ...
Appendix S.9 Culliton Creek Red Legged Frog Baseline Inventory
... suitable habitat were subjected to surveys for adults and egg masses and habitat was described and assessed. Three main locations where breeding could be found were: a pond/wetland complex near the southwestern end of the project area (Ponds 1 and 2), a seepage area along the access road (Zone 1), a ...
... suitable habitat were subjected to surveys for adults and egg masses and habitat was described and assessed. Three main locations where breeding could be found were: a pond/wetland complex near the southwestern end of the project area (Ponds 1 and 2), a seepage area along the access road (Zone 1), a ...
David Brown - Montana State University
... Salmonid habitat relationships; effects of Oregon fire on aquatic ecosystems; ecology of high State mountain lakes University ...
... Salmonid habitat relationships; effects of Oregon fire on aquatic ecosystems; ecology of high State mountain lakes University ...
New Holland Mouse (Pseudomys novaehollandiae)
... Pygmy-possum (Cercartetus nanus). Activities such as prescribed burning may not always benefit these species, nor the many other vertebrates, invertebrates, plants and other organisms present. Nevertheless, regimes could be formulated to adequately cater for some specific requirements, given that th ...
... Pygmy-possum (Cercartetus nanus). Activities such as prescribed burning may not always benefit these species, nor the many other vertebrates, invertebrates, plants and other organisms present. Nevertheless, regimes could be formulated to adequately cater for some specific requirements, given that th ...
Biology 1020: Course Outline
... This course examines the relationships between organisms and their environments from a number of perspectives. We first examine the relationships between organisms and their physical environment. Next we deal with how organisms adapt to varying environments from the perspective of evolutionary ecolo ...
... This course examines the relationships between organisms and their environments from a number of perspectives. We first examine the relationships between organisms and their physical environment. Next we deal with how organisms adapt to varying environments from the perspective of evolutionary ecolo ...
Negative competitive effects of invasive plants change with time
... 2000), consumptive (Pimm 1987) or avoidance responses (Cox and Lima 2006). For instance, invasive plant growth has been found to be more suppressed by negative soil feedbacks with time since invasion (Diez et al. 2010). Abundance of the invader will also change over time, though the relationship bet ...
... 2000), consumptive (Pimm 1987) or avoidance responses (Cox and Lima 2006). For instance, invasive plant growth has been found to be more suppressed by negative soil feedbacks with time since invasion (Diez et al. 2010). Abundance of the invader will also change over time, though the relationship bet ...
Network of Conservation Areas (NCA) Report Dictionary
... conservation areas. These potential conservation areas focus on capturing the ecological processes that are necessary to support the continued existence of a particular element of natural heritage significance. Potential conservation areas may include a single occurrence of a rare element or a suite ...
... conservation areas. These potential conservation areas focus on capturing the ecological processes that are necessary to support the continued existence of a particular element of natural heritage significance. Potential conservation areas may include a single occurrence of a rare element or a suite ...
Great Lakes Shorelines - Bruce Peninsula Biosphere Association
... of this sand along the shore by waves and current, followed by wind-transport into upland areas. Dunes and beaches are inherently dynamic systems and are eroded and added to continually by wind, currents and storm events. As a result of these physical processes, these systems have distinctive and in ...
... of this sand along the shore by waves and current, followed by wind-transport into upland areas. Dunes and beaches are inherently dynamic systems and are eroded and added to continually by wind, currents and storm events. As a result of these physical processes, these systems have distinctive and in ...
LAPB 2008 Program wi.. - Louisiana Association of Professional
... harvest rate of 43% during sport hunting seasons. Preliminary analyses indicate mean 95% annual home ranges for males and females at 347 acres (n=6) and 65 acres (n=2), respectively. Mean 50% core areas for the same sample are 34 acres and 12 acres, respectively. Additionally, dispersal has been doc ...
... harvest rate of 43% during sport hunting seasons. Preliminary analyses indicate mean 95% annual home ranges for males and females at 347 acres (n=6) and 65 acres (n=2), respectively. Mean 50% core areas for the same sample are 34 acres and 12 acres, respectively. Additionally, dispersal has been doc ...
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.