Charles Elton Source: Journal of Animal Ecology, Vol
... If one peruses the lists of species recorded in various ecological surveys of clearly defined habitats, the thing that stands out is the high percentage of genera with only one species present. This is quite a different picture from a faunal list for a whole region or country, in which many large ge ...
... If one peruses the lists of species recorded in various ecological surveys of clearly defined habitats, the thing that stands out is the high percentage of genera with only one species present. This is quite a different picture from a faunal list for a whole region or country, in which many large ge ...
Invasion of exotic species
... in species to migrate. Nowadays, as humans increasingly travel and, even more importantly, have their cargo moved from coast to coast, and between continents, quantities of stowaways are also carried. From a captive situation such as in a ballast water tank, or being slipped in through customs by a ...
... in species to migrate. Nowadays, as humans increasingly travel and, even more importantly, have their cargo moved from coast to coast, and between continents, quantities of stowaways are also carried. From a captive situation such as in a ballast water tank, or being slipped in through customs by a ...
Property Management Plan (RTP) Evan Hall
... Control of Introduced Predators: The fox and cat are two introduced species which are likely to prey on the phascogale, therefore where possible these species should be controlled. There are a variety of methods for control of these two species such as shooting, trapping and baiting, and it is recom ...
... Control of Introduced Predators: The fox and cat are two introduced species which are likely to prey on the phascogale, therefore where possible these species should be controlled. There are a variety of methods for control of these two species such as shooting, trapping and baiting, and it is recom ...
CSI: COASTAL SHORE INVESTIGATION
... sample has more evenness than the second. This is because the total number of individuals in the sample is quite evenly distributed between the three species. In the second sample, most of the individuals are buttercups, with only a few daisies and dandelions present. Sample 2 is therefore considere ...
... sample has more evenness than the second. This is because the total number of individuals in the sample is quite evenly distributed between the three species. In the second sample, most of the individuals are buttercups, with only a few daisies and dandelions present. Sample 2 is therefore considere ...
Biodiversity in Malaysia
... biodiversity is the trend in most crops all over the world. The situation is also the same for the most common farm animals, such as cattle, pigs and chickens. This gradual but steady loss of the genetic variety as a result of modern agricultural practices is termed genetic erosion. The loss of agro ...
... biodiversity is the trend in most crops all over the world. The situation is also the same for the most common farm animals, such as cattle, pigs and chickens. This gradual but steady loss of the genetic variety as a result of modern agricultural practices is termed genetic erosion. The loss of agro ...
NATURAL RESOURCES IN THE PUENTE HILLS
... T. Dodge, and S. Maguin, Solid Waste Management Department, Sanitation Districts of Los Angeles County A presentation will be given on the status of the four native habitat projects which resulted from the permitting the Puente Hills Waste Management Facilities in 1993. The first is the preservation ...
... T. Dodge, and S. Maguin, Solid Waste Management Department, Sanitation Districts of Los Angeles County A presentation will be given on the status of the four native habitat projects which resulted from the permitting the Puente Hills Waste Management Facilities in 1993. The first is the preservation ...
FNHTB Inc (0473, FS0015 and FS0016)
... "The robustness or resilience of what?" We are concerned simultaneously with a wide variety of natural and social systems. For some systems and activities, such asflsheriesand sensible management practices, we seek to flnd ways to enhance resilience and robustness; for others, such as diseases and d ...
... "The robustness or resilience of what?" We are concerned simultaneously with a wide variety of natural and social systems. For some systems and activities, such asflsheriesand sensible management practices, we seek to flnd ways to enhance resilience and robustness; for others, such as diseases and d ...
The Scientific Research Requirements of an Ecosystem
... of leatherback turtles released from large pelagic longlines ...
... of leatherback turtles released from large pelagic longlines ...
Tower Hamlets Local Biodiversity Action Plan 2014
... Biodiversity includes elephants, sparrows and bluebells; woodlands, rivers and grassland. There are many reasons why we should conserve biodiversity. It is important for its own sake, and most people agree that we have a moral duty to protect the other species of animals and plants with which we sha ...
... Biodiversity includes elephants, sparrows and bluebells; woodlands, rivers and grassland. There are many reasons why we should conserve biodiversity. It is important for its own sake, and most people agree that we have a moral duty to protect the other species of animals and plants with which we sha ...
Biodiversity loss and its impact on humanity
... its role in ecosystem and landscape processes5. Building on early studies of the effects of biodiversity on ecosystem processes, DIVERSITAS, the international programme dedicated to biodiversity science, produced a global research agenda6. By the mid-1990s, BEF studies had manipulated the species ri ...
... its role in ecosystem and landscape processes5. Building on early studies of the effects of biodiversity on ecosystem processes, DIVERSITAS, the international programme dedicated to biodiversity science, produced a global research agenda6. By the mid-1990s, BEF studies had manipulated the species ri ...
Rocky Intertidal
... bluffs along California’s shoreline, bluff revetments and coastal armoring will be more frequently used, effectively prohibiting upland migration of the habitat (Largier et al. 2010). Pollution and oil spills Pollutants, including agricultural and livestock waste, wastewater, sewage outfalls, histor ...
... bluffs along California’s shoreline, bluff revetments and coastal armoring will be more frequently used, effectively prohibiting upland migration of the habitat (Largier et al. 2010). Pollution and oil spills Pollutants, including agricultural and livestock waste, wastewater, sewage outfalls, histor ...
Ecosystems - NGSS Michigan
... of energy from one trophic level to another and that matter and energy are conserved as matter cycles and energy flows through ecosystems. Emphasis is on atoms and molecules such as carbon, oxygen, hydrogen and nitrogen being conserved as they move through an ecosystem.] [Assessment Boundary: Assess ...
... of energy from one trophic level to another and that matter and energy are conserved as matter cycles and energy flows through ecosystems. Emphasis is on atoms and molecules such as carbon, oxygen, hydrogen and nitrogen being conserved as they move through an ecosystem.] [Assessment Boundary: Assess ...
report - DIGITAL.CSIC, el repositorio institucional
... and butterfly—plant communities (Steffan-Dewenter & Tscharntke 2000). Consequently, prey species outbreaks may be more common once their natural enemies have been driven extinct by destruction of habitat (Kruess & Tscharntke 1994). Second, habitat loss has a more severe effect on species that are be ...
... and butterfly—plant communities (Steffan-Dewenter & Tscharntke 2000). Consequently, prey species outbreaks may be more common once their natural enemies have been driven extinct by destruction of habitat (Kruess & Tscharntke 1994). Second, habitat loss has a more severe effect on species that are be ...
Prehensile-tailed Skink - The Maryland Zoo in Baltimore
... o Habitat loss is likely the major threat facing these lizards. Because they live in forests that are targeted by loggers, much of their habitat is being lost quickly. They are particularly susceptible because they tend to live in the oldest, biggest trees in the forest—trees which offer loggers the ...
... o Habitat loss is likely the major threat facing these lizards. Because they live in forests that are targeted by loggers, much of their habitat is being lost quickly. They are particularly susceptible because they tend to live in the oldest, biggest trees in the forest—trees which offer loggers the ...
plant functional markers capture ecosystem properties during
... primary producers, all potentially influence these processes (Grime 1998, Chapin et al. 2002). A major difficulty is that the factors involved are not of comparable nature: numbers, relative abundances of species, and processes are quantitative variables, while the identity of a species is usually d ...
... primary producers, all potentially influence these processes (Grime 1998, Chapin et al. 2002). A major difficulty is that the factors involved are not of comparable nature: numbers, relative abundances of species, and processes are quantitative variables, while the identity of a species is usually d ...
Complex community and evolutionary responses to habitat
... meta-analysis found increased consumption in edge habitats compared to interiors [8]. Notably, this increased topdown effect was driven primarily by herbivores feeding on plants, and in particular by dietary generalists, not specialists. Further, this meta-analysis found no evidence that higher tr ...
... meta-analysis found increased consumption in edge habitats compared to interiors [8]. Notably, this increased topdown effect was driven primarily by herbivores feeding on plants, and in particular by dietary generalists, not specialists. Further, this meta-analysis found no evidence that higher tr ...
Biodiversity for kids - Teacher`s Guide
... and animals. For most plants and animals, the by-products of carrying out their daily lives, creates the conditions for another plant or animal to survive. An insect for example pollinates flowers when it visits to collect nectar; a worm helps break down decaying matter into a form that plant roots ...
... and animals. For most plants and animals, the by-products of carrying out their daily lives, creates the conditions for another plant or animal to survive. An insect for example pollinates flowers when it visits to collect nectar; a worm helps break down decaying matter into a form that plant roots ...
Extreme life history plasticity and the evolution
... emerging evidence suggests that biotic homogenization is occurring in a variety of ecosystems (Rahel 2000; McKinney 2004; Rooney et al. 2004) with important ecological and evolutionary consequences (Olden et al. 2004). Biological invasions are often closely associated with human environmental impact ...
... emerging evidence suggests that biotic homogenization is occurring in a variety of ecosystems (Rahel 2000; McKinney 2004; Rooney et al. 2004) with important ecological and evolutionary consequences (Olden et al. 2004). Biological invasions are often closely associated with human environmental impact ...
EVS - Abdul Ahad Azad Memorial Degree College Bemina
... Deforestation is a consequence of over-exploitation of forest resources for space, energy and materials. Expansion of agriculture is one of the prime causes of deforestation. As demands on agricultural products rise, more and more land is brought under cultivation at the cost of forests. Shift ...
... Deforestation is a consequence of over-exploitation of forest resources for space, energy and materials. Expansion of agriculture is one of the prime causes of deforestation. As demands on agricultural products rise, more and more land is brought under cultivation at the cost of forests. Shift ...
Squirrel Glider
... glide for more than 50m in one movement. Nightly movements are estimated as between 300 and 500m. Home-ranges have been estimated as between 0.65 and 8.55ha and movements tend to be greater for males than females . The home-range of a family group is likely to vary according to habitat quality and a ...
... glide for more than 50m in one movement. Nightly movements are estimated as between 300 and 500m. Home-ranges have been estimated as between 0.65 and 8.55ha and movements tend to be greater for males than females . The home-range of a family group is likely to vary according to habitat quality and a ...
25 4. RESEARCH ARTICLE OIL PALM EXPANSION
... Moths were sampled in each site with automatic funnel traps, using an 8-W UVemitting weak fluorescent light tube (see Brehm and Axmacher 2006 for a detailed description of the trap). Automatic traps collect an incomplete subset of moth diversity; they have a slight bias towards larger bodied moths a ...
... Moths were sampled in each site with automatic funnel traps, using an 8-W UVemitting weak fluorescent light tube (see Brehm and Axmacher 2006 for a detailed description of the trap). Automatic traps collect an incomplete subset of moth diversity; they have a slight bias towards larger bodied moths a ...
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.