Ecosystem services and dis-services to agriculture ⁎, Taylor H. Ricketts Wei Zhang
... Crop pollination is perhaps the best known ES performed by insects (Losey and Vaughan, 2006). The production of over 75% of the world's most important crops that feed humanity and 35% of the food produced is dependent upon animal pollination (Klein et al., 2007). Bees comprise the dominant taxa prov ...
... Crop pollination is perhaps the best known ES performed by insects (Losey and Vaughan, 2006). The production of over 75% of the world's most important crops that feed humanity and 35% of the food produced is dependent upon animal pollination (Klein et al., 2007). Bees comprise the dominant taxa prov ...
Document
... • Temperature and precipitation are the two most important factors that determine a region’s climate. ...
... • Temperature and precipitation are the two most important factors that determine a region’s climate. ...
Moving beyond assumptions to understand abundance distributions
... owing to the unique geometry of their geographical ranges, their physical environment and the distribution of their ranges. These species have ranges that can be thousands of kilometers long, but <0.1 km wide at all points. Defining the range edge and center is relatively simple for these species be ...
... owing to the unique geometry of their geographical ranges, their physical environment and the distribution of their ranges. These species have ranges that can be thousands of kilometers long, but <0.1 km wide at all points. Defining the range edge and center is relatively simple for these species be ...
Does a warmer climate with frequent mild water shortages
... effects on ecosystem functions and structure. We investigated the effects of an imposed severe drought (24 days) on fully established synthesized grassland communities with three species richness (S) levels (one, three or nine species), grown for 3 years at either ambient air temperatures (unheated) ...
... effects on ecosystem functions and structure. We investigated the effects of an imposed severe drought (24 days) on fully established synthesized grassland communities with three species richness (S) levels (one, three or nine species), grown for 3 years at either ambient air temperatures (unheated) ...
Predictors of species sensitivity to fragmentation
... destruction and fragmentation are the most likely major causes of the increase in the rate of species extinctions in recent decades (Henle and Streit 1990; Groombridge 1992). As fragmentation proceeds, stochastic forces are added to the deterministic declines caused by a dwindling supply of habitat. ...
... destruction and fragmentation are the most likely major causes of the increase in the rate of species extinctions in recent decades (Henle and Streit 1990; Groombridge 1992). As fragmentation proceeds, stochastic forces are added to the deterministic declines caused by a dwindling supply of habitat. ...
ch06_sec1 revised
... • Temperature and precipitation are the two most important factors that determine a region’s climate. ...
... • Temperature and precipitation are the two most important factors that determine a region’s climate. ...
Deep Pools as Dry Season Habitats in the Mekong River Basin
... may spend their whole life-cycle in these habitats, often preying on migrating fish. Other migratory species, like the cyprinid Hypsibarbus malcolmi, use the deep pools as spawning grounds. The pools are also important dry season sanctuaries for many of the endangered giant Mekong fish such as the g ...
... may spend their whole life-cycle in these habitats, often preying on migrating fish. Other migratory species, like the cyprinid Hypsibarbus malcolmi, use the deep pools as spawning grounds. The pools are also important dry season sanctuaries for many of the endangered giant Mekong fish such as the g ...
EPBC Act Protected Matters Report
... The EPBC Act protects the environment on Commonwealth land, the environment from the actions taken on Commonwealth land, and the environment from actions taken by Commonwealth agencies. As heritage values of a place are part of the 'environment', these aspects of the EPBC Act protect the Commonwealt ...
... The EPBC Act protects the environment on Commonwealth land, the environment from the actions taken on Commonwealth land, and the environment from actions taken by Commonwealth agencies. As heritage values of a place are part of the 'environment', these aspects of the EPBC Act protect the Commonwealt ...
Coevolution: A synergy in biology and ecology
... the possibility of producing coevolution. This is a method often used by paleontologists. These data can be used to analyze the reasons for massive extinction of species. We can also reconstruct the ancient climate change through some biological residual material (such as phytoliths). (3) Use phylog ...
... the possibility of producing coevolution. This is a method often used by paleontologists. These data can be used to analyze the reasons for massive extinction of species. We can also reconstruct the ancient climate change through some biological residual material (such as phytoliths). (3) Use phylog ...
Species interactions, local and regional processes, and limits to the
... dragonflies or salamanders, or a several hectare woodland for a guild of foliage-gleaning birds. The scale of the local habitat will generally increase for taxa having larger body sizes and wider home ranges. The distinction between local and regional spatial scales is important because the relative ...
... dragonflies or salamanders, or a several hectare woodland for a guild of foliage-gleaning birds. The scale of the local habitat will generally increase for taxa having larger body sizes and wider home ranges. The distinction between local and regional spatial scales is important because the relative ...
IN THE MATTER OF : THE NATURAL ENGLAND THAMES BASIN
... conservation objectives, are to authorise … (the) activity only if they have made certain that it will not adversely affect the integrity of that site. That is the case where no reasonable scientific doubt remains as to the absence of such effects” ...
... conservation objectives, are to authorise … (the) activity only if they have made certain that it will not adversely affect the integrity of that site. That is the case where no reasonable scientific doubt remains as to the absence of such effects” ...
Leaf-level nitrogen-use efficiency of canopy and understorey
... other than green leaves of Fagus were not distinguished by the crown position. Leaf area was determined with a leaf area meter (AAM-8, Hayashi Denkoh, Japan) immediately after sampling. The samples were dried and weighed, and then total N concentration was determined as described above. On 6 August ...
... other than green leaves of Fagus were not distinguished by the crown position. Leaf area was determined with a leaf area meter (AAM-8, Hayashi Denkoh, Japan) immediately after sampling. The samples were dried and weighed, and then total N concentration was determined as described above. On 6 August ...
Section 1 How Organisms Interact in Communities
... at the very top of the spruce tree even though insects that the warbler could eat are located all over the tree. In other words, Cape May warblers occupy only a portion of their fundamental niche. Why? Closer study reveals that this surprising behavior is part of a larger pattern of niche restrictio ...
... at the very top of the spruce tree even though insects that the warbler could eat are located all over the tree. In other words, Cape May warblers occupy only a portion of their fundamental niche. Why? Closer study reveals that this surprising behavior is part of a larger pattern of niche restrictio ...
Ranchers as a Keystone Species in a West That Works By Richard L
... important. The private lands are disproportionately important to the maintenance of our region’s natural heritage because they are disproportionately more productive. Although no one has calculated the ratio, private lands may be an order of magnitude more important to the maintenance of the region ...
... important. The private lands are disproportionately important to the maintenance of our region’s natural heritage because they are disproportionately more productive. Although no one has calculated the ratio, private lands may be an order of magnitude more important to the maintenance of the region ...
roads and carrion-feeding beetle communitiesrequenting beetles
... In total, we collected 1,569 beetles of 72 species. Most of the beetles collected were from taxa known to be carrion-feeders (Silphidae, Trogidae) or predators on fly eggs or maggots (e.g. Staphylinidae). Like other studies of carrion (e.g. Sikes 1994) the assemblages also included beetles from fami ...
... In total, we collected 1,569 beetles of 72 species. Most of the beetles collected were from taxa known to be carrion-feeders (Silphidae, Trogidae) or predators on fly eggs or maggots (e.g. Staphylinidae). Like other studies of carrion (e.g. Sikes 1994) the assemblages also included beetles from fami ...
Ecological Succession
... the broken soil will rapidly invade the site and will become quickly and densely established. These invading plants are what we call "weeds“ in which we consider a nuisance or invaders. ...
... the broken soil will rapidly invade the site and will become quickly and densely established. These invading plants are what we call "weeds“ in which we consider a nuisance or invaders. ...
WB_A_53-56
... Primary and Secondary Succession The series of predictable changes that occurs in a community over time is called ecological succession. Over the course of succession, the number of different species usually increases. Primary succession begins in areas with no remnants of an older community. It occ ...
... Primary and Secondary Succession The series of predictable changes that occurs in a community over time is called ecological succession. Over the course of succession, the number of different species usually increases. Primary succession begins in areas with no remnants of an older community. It occ ...
A Field Manual for Seed Collectors SEED COLLECTING FOR THE
... collectors are requested to enter comprehensive identification notes on the field data form. If a local expert is not available to identify species, plant identification guides should be used instead. Floras are often incomplete and, in many cases, are more appropriate to herbarium identification. M ...
... collectors are requested to enter comprehensive identification notes on the field data form. If a local expert is not available to identify species, plant identification guides should be used instead. Floras are often incomplete and, in many cases, are more appropriate to herbarium identification. M ...
State of the Birds 2013
... a landscape of myriad natural habitats. Not everyone will notice a Brown Thrasher or a Chestnut-sided Warbler, but a town that can harbor those species—with small farms, hedges, streams, meadows, forests, and other green space—is a more sustaining and desirable place to live than a town with relativ ...
... a landscape of myriad natural habitats. Not everyone will notice a Brown Thrasher or a Chestnut-sided Warbler, but a town that can harbor those species—with small farms, hedges, streams, meadows, forests, and other green space—is a more sustaining and desirable place to live than a town with relativ ...
Vector Corruption - Department of Fisheries and Wildlife
... the bullfrog to become established outside its native range. The species is a large, gape limited, i.e. the body size and width of the mouth determine how large a prey item it can consume, generalist carnivore, willing to cannibalize its own young. They are a highly adaptable species that can easily ...
... the bullfrog to become established outside its native range. The species is a large, gape limited, i.e. the body size and width of the mouth determine how large a prey item it can consume, generalist carnivore, willing to cannibalize its own young. They are a highly adaptable species that can easily ...
How to make wildlife conservation more compatible with production forestry:... Kalimantan
... concessions. Using studies on different groups of vertebrates we have tried to identify common factors among species that determine sensitivity to logging. Many of these negative factors can be alleviated by relatively small changes in concession management. Although Meijaard et al.’s research focus ...
... concessions. Using studies on different groups of vertebrates we have tried to identify common factors among species that determine sensitivity to logging. Many of these negative factors can be alleviated by relatively small changes in concession management. Although Meijaard et al.’s research focus ...
A Proposal to Create a Registry of Sites of International Importance
... been in place for about 15 years. The Convention on Wetlands of International Importance, especially as Waterfowl Habitat, is known as the Ramsar Convention. It is named after the city in Iran where the Convention was formally adopted in 1971. The International Union for the Conservation of Nature a ...
... been in place for about 15 years. The Convention on Wetlands of International Importance, especially as Waterfowl Habitat, is known as the Ramsar Convention. It is named after the city in Iran where the Convention was formally adopted in 1971. The International Union for the Conservation of Nature a ...
JMS 70_3 257-261 eyh028 FINAL
... distribution of M. senhousia was probably also played by macroalgal mats. In the Sacca, the Asian date mussel spawns from the end of summer to late autumn (Sgro et al., 2002); later juveniles will settle onto the bottom during winter, just when pleustophytic macroalgae start their growing season (Vi ...
... distribution of M. senhousia was probably also played by macroalgal mats. In the Sacca, the Asian date mussel spawns from the end of summer to late autumn (Sgro et al., 2002); later juveniles will settle onto the bottom during winter, just when pleustophytic macroalgae start their growing season (Vi ...
pest risk assessment - Department of Primary Industries, Parks
... They are mostly ground dwelling, occupying rocky outcrops and deep crevices. Perenties also forage widely in sandy desert and claypans and will sometimes climb trees when disturbed. The lizards on Barrow Island are active throughout the year. Perenties feed on insects, reptiles, birds, small mammals ...
... They are mostly ground dwelling, occupying rocky outcrops and deep crevices. Perenties also forage widely in sandy desert and claypans and will sometimes climb trees when disturbed. The lizards on Barrow Island are active throughout the year. Perenties feed on insects, reptiles, birds, small mammals ...
Habitat
.JPG?width=300)
A habitat is an ecological or environmental area that is inhabited by human, a particular species of animal, plant, or other type of organism.A place where a living thing lives is its habitat. It is a place where it can find food, shelter, protection and mates for reproduction. It is the natural environment in which an organism lives, or the physical environment that surrounds a species population.A habitat is made up of physical factors such as soil, moisture, range of temperature, and availability of light as well as biotic factors such as the availability of food and the presence of predators. A habitat is not necessarily a geographic area—for a parasitic organism it is the body of its host, part of the host's body such as the digestive tract, or a cell within the host's body.