ecological principles for managing land use
... Land uses that cannot be maintained within the constraints of place will be costly when viewed from longterm and broad-scale perspectives. For example, establishing croplands and ornamental lawns in arid areas is possible, but draws down fossil groundwater at a rate unsustainable by natural recharge ...
... Land uses that cannot be maintained within the constraints of place will be costly when viewed from longterm and broad-scale perspectives. For example, establishing croplands and ornamental lawns in arid areas is possible, but draws down fossil groundwater at a rate unsustainable by natural recharge ...
Principles of Program Development and
... amphibian conservation breeding programs around the world in a wide variety of types of facilities, institutions, and programmatic scopes. Important concepts such as biosecurity, genetic management, and long-term secure funding are simple to consider. However, maintaining their integrity over the ma ...
... amphibian conservation breeding programs around the world in a wide variety of types of facilities, institutions, and programmatic scopes. Important concepts such as biosecurity, genetic management, and long-term secure funding are simple to consider. However, maintaining their integrity over the ma ...
Habitat subdivision causes changes in food web structure
... which may also allow species at higher trophic levels to persist (McCann & Hastings 1997). Species at higher trophic levels may also be more prone to extinction for other reasons. In patch networks where species experience extinctions from local patches, top predators may also remain absent for long ...
... which may also allow species at higher trophic levels to persist (McCann & Hastings 1997). Species at higher trophic levels may also be more prone to extinction for other reasons. In patch networks where species experience extinctions from local patches, top predators may also remain absent for long ...
Succession
... Many factors can intervene to prevent reaching the climatic climax condition. Pyral climax - frequent natural fires Biotic climax - grazing animals Edaphic climax - Serpentine soils (mg) and limestone soils (calcium) in areas of acid igneous ...
... Many factors can intervene to prevent reaching the climatic climax condition. Pyral climax - frequent natural fires Biotic climax - grazing animals Edaphic climax - Serpentine soils (mg) and limestone soils (calcium) in areas of acid igneous ...
Biodiversity in Australia - The Australian Collaboration
... Antarctica. For many years the ocean has been considered an inexhaustible fish resource and a bottomless pit for our waste. As our population has grown, the pressures on oceans have increased. A decade ago, Australia had five fish species categorised as ‘over-fished’; now there are seventeen. Over-f ...
... Antarctica. For many years the ocean has been considered an inexhaustible fish resource and a bottomless pit for our waste. As our population has grown, the pressures on oceans have increased. A decade ago, Australia had five fish species categorised as ‘over-fished’; now there are seventeen. Over-f ...
Classification and Ecology of Major Tropical Insect Groups
... tropics, for example, tend to underscore the fact that there are more species to be described than are currently recognized. The most recent analyses suggest that there are from four to six million insect species in the world. The elevated richness, high abundance and biomass make insects one of the ...
... tropics, for example, tend to underscore the fact that there are more species to be described than are currently recognized. The most recent analyses suggest that there are from four to six million insect species in the world. The elevated richness, high abundance and biomass make insects one of the ...
File - Valdes Island Conservancy
... mottling and gold flecking throughout. The tail is at least as long as the body and the tailfin extends onto the back. Description ...
... mottling and gold flecking throughout. The tail is at least as long as the body and the tailfin extends onto the back. Description ...
Intercontinental biotic invasions: what can we learn from native
... Southeast Asia. The formation of these neo-disjuncts has been regarded as one of the most globally influential biogeographical processes in modern times. Exotics or invasives introduced to others areas within the same continent (e.g., Spartina alterniflora, native to eastern North America but introduc ...
... Southeast Asia. The formation of these neo-disjuncts has been regarded as one of the most globally influential biogeographical processes in modern times. Exotics or invasives introduced to others areas within the same continent (e.g., Spartina alterniflora, native to eastern North America but introduc ...
1 Wetland Functioning in Relation to Biodiversity Conservation and
... pathway may sustain internal aerobic conditions across the root, even reaching the root tips. Well aerated roots of many wetland species may even release oxygen to the surrounding soil, forming an oxidized rhizosphere. This is an important mechanism to detoxify harmful soluble reduced ions such as m ...
... pathway may sustain internal aerobic conditions across the root, even reaching the root tips. Well aerated roots of many wetland species may even release oxygen to the surrounding soil, forming an oxidized rhizosphere. This is an important mechanism to detoxify harmful soluble reduced ions such as m ...
Adelges tsugae
... pest of eastern hemlock and Carolina hemlock; believed to be native to Japan and China it is currently found in the eastern United States. ...
... pest of eastern hemlock and Carolina hemlock; believed to be native to Japan and China it is currently found in the eastern United States. ...
... biodiversity, species richness, endemism, and biological distinctiveness (5). It is also very important for conservation biology to identify species assemblages that inhabit these special areas or the highly specialised, unique or restricted habitats, since they are considered to be especially vulne ...
The architecture of mutualistic networks minimizes competition and
... To illustrate the predicted effect of network architecture on biodiversity, we incorporate the structure of each one of 56 real mutualistic networks (Supplementary Table 1) into our analytical expression (equation (5)). In Fig. 2a, we plot the increase in biodiversity in relation to the baseline lim ...
... To illustrate the predicted effect of network architecture on biodiversity, we incorporate the structure of each one of 56 real mutualistic networks (Supplementary Table 1) into our analytical expression (equation (5)). In Fig. 2a, we plot the increase in biodiversity in relation to the baseline lim ...
From Numerous to Non-existent: Common, Rare, Threatened
... The clouded leopard (Neofelis nebulosa) is found from the Himalayan foothills in Nepal through mainland Southeast Asia into China. The species once had a wide distribution in China, but the animals are disappearing from many areas as the result of habitat loss and illegal hunting. These reclusive an ...
... The clouded leopard (Neofelis nebulosa) is found from the Himalayan foothills in Nepal through mainland Southeast Asia into China. The species once had a wide distribution in China, but the animals are disappearing from many areas as the result of habitat loss and illegal hunting. These reclusive an ...
What Is a Keystone Species? - Pizer Science at PHS
... Reading Standards for Literacy in Science and Technical Subjects [RST] CCSS.ELA-Literacy.RST.9-10.3 Follow precisely a complex multistep procedure when carrying out experiments, taking measurements, or performing technical tasks, attending to special cases or exceptions defined in the text. CCSS.ELA ...
... Reading Standards for Literacy in Science and Technical Subjects [RST] CCSS.ELA-Literacy.RST.9-10.3 Follow precisely a complex multistep procedure when carrying out experiments, taking measurements, or performing technical tasks, attending to special cases or exceptions defined in the text. CCSS.ELA ...
Ant species richness and evenness increase along a
... humus layer (Zygmunt et al. 2006). The meadows were on sandy or sandy-limestone soils. Total and water-soluble soil concentrations of Zn, Cd and Pb, and other site characteristics, are given in Table 1. As the metal concentrations in soil were highly correlated with each other (Table 2), total zinc ...
... humus layer (Zygmunt et al. 2006). The meadows were on sandy or sandy-limestone soils. Total and water-soluble soil concentrations of Zn, Cd and Pb, and other site characteristics, are given in Table 1. As the metal concentrations in soil were highly correlated with each other (Table 2), total zinc ...
INTRODUCTION
... increasing organism size. Damuth found the population density of herbivorous mammals decreased with increased body size. Peters and Wassenberg found aquatic invertebrates tend to have higher population densities than terrestrial invertebrates of similar size. Mammals tend to have higher popula ...
... increasing organism size. Damuth found the population density of herbivorous mammals decreased with increased body size. Peters and Wassenberg found aquatic invertebrates tend to have higher population densities than terrestrial invertebrates of similar size. Mammals tend to have higher popula ...
think about it
... Without the greenhouse effect, Earth would be about 30°C cooler than it is today. ...
... Without the greenhouse effect, Earth would be about 30°C cooler than it is today. ...
Kaimanawa horses Ecology powerpoint
... Human effects on ecosystems • Humans can have a direct or indirect effect on an ecosystem. • For example, humans can spill oil which may cover a shoreline with thick, black crude oil. The fact that humans did it, makes it a biotic effect, but the effect on the shore will be due to abiotic factors s ...
... Human effects on ecosystems • Humans can have a direct or indirect effect on an ecosystem. • For example, humans can spill oil which may cover a shoreline with thick, black crude oil. The fact that humans did it, makes it a biotic effect, but the effect on the shore will be due to abiotic factors s ...
Biodiversity, Extinction, and Humanity`s Future
... at least some late Pleistocene extinctions, with greater or lesser contributions from other factor(s), particularly climate change [8,9]. Responsibility for the extinction of other species (e.g., the dodo, Steller’s sea cow) as well as range contractions (of virtually all large felids, canids, and u ...
... at least some late Pleistocene extinctions, with greater or lesser contributions from other factor(s), particularly climate change [8,9]. Responsibility for the extinction of other species (e.g., the dodo, Steller’s sea cow) as well as range contractions (of virtually all large felids, canids, and u ...
Student Activity Sheets
... Gilbert’s Potoroos known to be alive in the wild and the number of locations in which they occur. Recovery Criteria: The Recovery Plan will be deemed successful if: ...
... Gilbert’s Potoroos known to be alive in the wild and the number of locations in which they occur. Recovery Criteria: The Recovery Plan will be deemed successful if: ...
3_abundance and distribution
... But ecologists who study distribution tend to study different things than those who study abundance ...
... But ecologists who study distribution tend to study different things than those who study abundance ...
Browsing Wildlife Species - Department of Primary Industries, Parks
... It’s also important to consider the full suite of species on your property as these may affect the effectiveness of Bennett’s wallabies usually control options for other species. For example, trapping is come out to feed at particularly effective on properties where both Tasmanian dusk and can trave ...
... It’s also important to consider the full suite of species on your property as these may affect the effectiveness of Bennett’s wallabies usually control options for other species. For example, trapping is come out to feed at particularly effective on properties where both Tasmanian dusk and can trave ...
Using Plantations to Catalyze Tropical Forest Restoration
... wood and to alleviate pressure on remaining blocks of natural forest. Increasing interest in biodiversity has called into question the extensive use of non-native species and has highlighted the ecological drawbacks of exotic monocultures. These drawbacks include lower levels of plant and animal div ...
... wood and to alleviate pressure on remaining blocks of natural forest. Increasing interest in biodiversity has called into question the extensive use of non-native species and has highlighted the ecological drawbacks of exotic monocultures. These drawbacks include lower levels of plant and animal div ...
Ecosystems - West Ashley High School
... niche. • A species' realized niche can be thought of as its niche in practice—the range of habitat types from which it is not excluded by competing species. – Realized niches are usually smaller than fundamental niches. – Species may occupy different realized niches in various locations if some cond ...
... niche. • A species' realized niche can be thought of as its niche in practice—the range of habitat types from which it is not excluded by competing species. – Realized niches are usually smaller than fundamental niches. – Species may occupy different realized niches in various locations if some cond ...
assessment
... intensive logging on west Guadalcanal may have had a negative impact on the species's habitat as some of these operations occurred in hill forest habitats and have altered the hydrology of the area (C. Filardi in litt. 2012). In addition, mining and prospecting activity has intensified in recent few ...
... intensive logging on west Guadalcanal may have had a negative impact on the species's habitat as some of these operations occurred in hill forest habitats and have altered the hydrology of the area (C. Filardi in litt. 2012). In addition, mining and prospecting activity has intensified in recent few ...
Bifrenaria
Bifrenaria, abbreviated Bif. in horticultural trade, is a genus of plant in family Orchidaceae. It contains 20 species found in Panama, Trinidad and South America. There are no known uses for them, but their abundant, and at first glance artificial, flowers, make them favorites of orchid growers.The genus can be split in two clearly distinct groups: one of highly robust plants with large flowers, that encompass the first species to be classified under the genus Bifrenaria; other of more delicate plants with smaller flowers occasionally classified as Stenocoryne or Adipe. There are two additional species that are normally classified as Bifrenaria, but which molecular analysis indicate to belong to different orchid groups entirely. One is Bifrenaria grandis which is endemic to Bolívia and which is now placed in Lacaena, and Bifrenaria steyermarkii, an inhabitant of the northern Amazon Forest, which does not have an alternative classification.