Food-Web Models Predict Species Abundances in Response to Habitat Change
... The loss of natural habitat area often is accompanied by the disappearance of large-bodied top predators and the upper trophic levels of food webs [1–3]. However, several pieces of evidence suggest that habitat area alone may be insufficient to predict changes in population size. Predictions of ecolo ...
... The loss of natural habitat area often is accompanied by the disappearance of large-bodied top predators and the upper trophic levels of food webs [1–3]. However, several pieces of evidence suggest that habitat area alone may be insufficient to predict changes in population size. Predictions of ecolo ...
Biodiversity and the African Savanna: Problems of Definition and
... worthwhile, because “the majority of people in the tropics, over onefifth of the world’s population, live in savannas” and such studies may contribute to “the long term survival of so many people, who are already threatened with landscape degradation, drought, famine and disease” [ 1 9 ]. Ecological ...
... worthwhile, because “the majority of people in the tropics, over onefifth of the world’s population, live in savannas” and such studies may contribute to “the long term survival of so many people, who are already threatened with landscape degradation, drought, famine and disease” [ 1 9 ]. Ecological ...
Red-legged Pademelon - Byron Shire Council
... In north-east NSW the Red-legged Pademelon rarely ventures from the cover and refuge provided by its wet forest habitat. It is largely nocturnal, sleeping by day within the refuge of dense cover, often backed against a rock or tree (Johnson and Vernes 1995). In northern Qld the Red-legged Pademelon ...
... In north-east NSW the Red-legged Pademelon rarely ventures from the cover and refuge provided by its wet forest habitat. It is largely nocturnal, sleeping by day within the refuge of dense cover, often backed against a rock or tree (Johnson and Vernes 1995). In northern Qld the Red-legged Pademelon ...
Guide to protected species surveys
... It is an offence to, or attempt to, wilfully kill, injure or take any native crayfish; possess any dead native crayfish or part of one; possess or control a living, healthy native crayfish; intentionally or recklessly damage, destroy or obstruct access to its habitat, or disturb a native crayfish wh ...
... It is an offence to, or attempt to, wilfully kill, injure or take any native crayfish; possess any dead native crayfish or part of one; possess or control a living, healthy native crayfish; intentionally or recklessly damage, destroy or obstruct access to its habitat, or disturb a native crayfish wh ...
disturbance moderates biodiversity–ecosystem
... of ecology for much of the past decade. Growing interest in the ecosystem-level consequences of biodiversity has been driven, in part, by our need to understand how species loss and homogenization of the world’s biota might alter ecological processes thought to sustain the Earth’s ecosystems. Resear ...
... of ecology for much of the past decade. Growing interest in the ecosystem-level consequences of biodiversity has been driven, in part, by our need to understand how species loss and homogenization of the world’s biota might alter ecological processes thought to sustain the Earth’s ecosystems. Resear ...
Multivariate characterisation of the habitats of seven species of
... completely submerged (TI). This parameter is associated with the frequency of submersion and the minimum time interval between wettings (Sasekumar 1974). Lower levels imply higher frequencies, shorter intervals and more aquatic conditions. The study sites were characterised by four TI levels. Biotic ...
... completely submerged (TI). This parameter is associated with the frequency of submersion and the minimum time interval between wettings (Sasekumar 1974). Lower levels imply higher frequencies, shorter intervals and more aquatic conditions. The study sites were characterised by four TI levels. Biotic ...
conservation-outside-nature-reserves-9
... It has been argued that sustainable management should aim to return conditions to more open vegetation which more closely represents the "natural state" of communities that occurred before the arrival of Europeans (Cameron and Blick 1991, Chrichton 1995). However, while arguments about-what is natur ...
... It has been argued that sustainable management should aim to return conditions to more open vegetation which more closely represents the "natural state" of communities that occurred before the arrival of Europeans (Cameron and Blick 1991, Chrichton 1995). However, while arguments about-what is natur ...
Habitat loss decreases predatorа/prey ratios in a pine
... system because their biology may fit the metapopulation models used in theoretical research more appropriately than do other taxa. For example, many species use patchily-distributed food resources (Wood 1982, Nilssen 1984, Forsse and Solbreck 1985, Weslien and Lindelow 1989). In addition, natural en ...
... system because their biology may fit the metapopulation models used in theoretical research more appropriately than do other taxa. For example, many species use patchily-distributed food resources (Wood 1982, Nilssen 1984, Forsse and Solbreck 1985, Weslien and Lindelow 1989). In addition, natural en ...
Niche theory and guilds
... i.e., a species’ response to the environment (Grinnell, Elton) -resource utilization functions: how species use resources (Hutchinson) See handout for others’ definitions/explanations of niche. So if a niche can only be occupied by one species, but if resources are limited such that competitors must ...
... i.e., a species’ response to the environment (Grinnell, Elton) -resource utilization functions: how species use resources (Hutchinson) See handout for others’ definitions/explanations of niche. So if a niche can only be occupied by one species, but if resources are limited such that competitors must ...
Monitoring protocol for the temporary pond (3170*) plant communities
... At the project site of Mt. Oiti there are four temporary ponds which correspond to habitat 3170*: Livadies, Greveno, Alykaina and Louka. At the project site of Mt. Kallidromo there are three temporary ponds which correspond to habitat 3170*: Nevropoli and the two small neighnouring ponds Mourouzos a ...
... At the project site of Mt. Oiti there are four temporary ponds which correspond to habitat 3170*: Livadies, Greveno, Alykaina and Louka. At the project site of Mt. Kallidromo there are three temporary ponds which correspond to habitat 3170*: Nevropoli and the two small neighnouring ponds Mourouzos a ...
Chapter-9-Wildlife-Biology-and-Management
... • Most important habitat to wildlife – provide food, nesting sites, and cover for many species of wildlife ...
... • Most important habitat to wildlife – provide food, nesting sites, and cover for many species of wildlife ...
CT_PlantStewIndex_090930
... A common goal of land stewardship projects is to preserve and protect those remnants of the natural environment that remain relatively intact and to protect these sensitive areas from being adversely impacted by human activities. A standardized assessment tool, such as the Plant Stewardship Index (P ...
... A common goal of land stewardship projects is to preserve and protect those remnants of the natural environment that remain relatively intact and to protect these sensitive areas from being adversely impacted by human activities. A standardized assessment tool, such as the Plant Stewardship Index (P ...
pdf reprint
... The effects of fragment area and isolation emerged as clear themes decades later. In empirical studies, ecologists began to recognize that fragment size changed community structure (Bond 1957). In theoretical studies, Preston (1962) connected species–area relationships on islands to nature reserves, ...
... The effects of fragment area and isolation emerged as clear themes decades later. In empirical studies, ecologists began to recognize that fragment size changed community structure (Bond 1957). In theoretical studies, Preston (1962) connected species–area relationships on islands to nature reserves, ...
Authorised - ACT Legislation Register
... et al. 2008) that has a functional value of providing protection from attack by predators. The species is thought to be sensitive to relatively low population densities of the introduced Red Fox (Vulpes vulpes). Hunting Arguably the single most important, initial cause of decline for this species wa ...
... et al. 2008) that has a functional value of providing protection from attack by predators. The species is thought to be sensitive to relatively low population densities of the introduced Red Fox (Vulpes vulpes). Hunting Arguably the single most important, initial cause of decline for this species wa ...
Here - Tylianakis Lab Group
... Abstract. Complementary resource use and redundancy of species that fulfill the same ecological role are two mechanisms that can respectively increase and stabilize process rates in ecosystems. For example, predator complementarity and redundancy can determine prey consumption rates and their stabili ...
... Abstract. Complementary resource use and redundancy of species that fulfill the same ecological role are two mechanisms that can respectively increase and stabilize process rates in ecosystems. For example, predator complementarity and redundancy can determine prey consumption rates and their stabili ...
IB ENVIRONMENTAL SYSTEMS AND SOCIETIES 2016
... In early stages, gross productivity is low due to the initial conditions and low density of producers. The proportion of energy lost through community respiration is relatively low too, so net productivity is high, that is, the system is growing and biomass is accumulating. In later stages, with an ...
... In early stages, gross productivity is low due to the initial conditions and low density of producers. The proportion of energy lost through community respiration is relatively low too, so net productivity is high, that is, the system is growing and biomass is accumulating. In later stages, with an ...
Free-feeding insect herbivores along environmental gradients in
... samples were obtained with sweep nets across cerrado (savanna), rupestrian field and altitudinal grassland vegetation from 800 to 1500 m above sea level. We found a low species richness in xeric and mesic habitats during both wet and dry seasons. Sapsucking insects were the most abundant guild (53.4 ...
... samples were obtained with sweep nets across cerrado (savanna), rupestrian field and altitudinal grassland vegetation from 800 to 1500 m above sea level. We found a low species richness in xeric and mesic habitats during both wet and dry seasons. Sapsucking insects were the most abundant guild (53.4 ...
Waitakere City Biodiversity Report 2007
... Although only 20% of the forested area is unmodified by logging or farming, the Waitakere Ranges are botanically rich containing 20% of all New Zealand’s flowering plant species and 60% of all native fern species. Although the following statistics are drawn from a number of sources and subject to ch ...
... Although only 20% of the forested area is unmodified by logging or farming, the Waitakere Ranges are botanically rich containing 20% of all New Zealand’s flowering plant species and 60% of all native fern species. Although the following statistics are drawn from a number of sources and subject to ch ...
CMS14380 EIA document Appendix 3 L1 flora and veg
... The distribution of this species is patchy on the Swan Coastal Plain, with records from Ellenbrook, Yellagonga Regional Park and Medina. ...
... The distribution of this species is patchy on the Swan Coastal Plain, with records from Ellenbrook, Yellagonga Regional Park and Medina. ...
Distribution and ecology of copepods in mountainous regions of the
... Following the results of Stemberger (1995) for Pleistocene glaciated mountain regions of the United States, species with effective dispersal mechanisms should predominate at high altitudes, while occurrences of species that rely on passive dispersal in surface waters should be rare. This paper prese ...
... Following the results of Stemberger (1995) for Pleistocene glaciated mountain regions of the United States, species with effective dispersal mechanisms should predominate at high altitudes, while occurrences of species that rely on passive dispersal in surface waters should be rare. This paper prese ...
Mammals and Seeds - Plymouth State University
... part of the week-long experiment could indicate that the residents learned about the prolonged presence of food. Throughout the week of observation there was a lot of rainfall, so this also could have prompted the residents to venture out into the riskier areas to forage because of the potential for ...
... part of the week-long experiment could indicate that the residents learned about the prolonged presence of food. Throughout the week of observation there was a lot of rainfall, so this also could have prompted the residents to venture out into the riskier areas to forage because of the potential for ...
D3.1 Annex 8c Section 6 Environmental impact plants
... now expanding in their native range, etc.). Nevertheless, the assessor should take into account that the environmental impact of a pest in its region of origin is often a very poor predictor of potential impact in regions where it has been introduced. In particular, the absence of any obvious enviro ...
... now expanding in their native range, etc.). Nevertheless, the assessor should take into account that the environmental impact of a pest in its region of origin is often a very poor predictor of potential impact in regions where it has been introduced. In particular, the absence of any obvious enviro ...
condition varies with habitat choice in postbreeding forest birds
... U.S. Department of Agriculture, Forest Service, Northern Research Station, P.O. Box 267, Irvine, Pennsylvania 16329, USA ...
... U.S. Department of Agriculture, Forest Service, Northern Research Station, P.O. Box 267, Irvine, Pennsylvania 16329, USA ...
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.