Section 1: What Is an Ecosystem?
... Succession, continued • An ecosystem responds to change in such a way that the ecosystem is restored to equilibrium. • For example, when a tree falls down in a rain forest, the newly vacant patch proceeds through succession until the patch returns to its original state. • Sometimes, the ecosystem wi ...
... Succession, continued • An ecosystem responds to change in such a way that the ecosystem is restored to equilibrium. • For example, when a tree falls down in a rain forest, the newly vacant patch proceeds through succession until the patch returns to its original state. • Sometimes, the ecosystem wi ...
Evolution, Biodiversity, and Population Ecology
... Some species are more vulnerable to extinction • Extinction occurs when the environment changes too rapidly for natural selection to keep up • Endemic species = a species only exists in a certain, specialized area - Very susceptible to extinction - These species usually have small populations • Man ...
... Some species are more vulnerable to extinction • Extinction occurs when the environment changes too rapidly for natural selection to keep up • Endemic species = a species only exists in a certain, specialized area - Very susceptible to extinction - These species usually have small populations • Man ...
Author`s personal copy - Department of Marine and Coastal Sciences
... 5 June and 1 September, with 12 transects surveyed in 2005 and another 12 in 2006. In Isla Utila, Honduras, all transects were surveyed 11 times between 1 July 1 and 26 August, 2007. Each UVC lasted 10 min. A single highly trained observer counted every fish observed inside each transect, identified e ...
... 5 June and 1 September, with 12 transects surveyed in 2005 and another 12 in 2006. In Isla Utila, Honduras, all transects were surveyed 11 times between 1 July 1 and 26 August, 2007. Each UVC lasted 10 min. A single highly trained observer counted every fish observed inside each transect, identified e ...
In this Issue The Wildlife Corridor Navy is Enlisted in
... the concept of the "rescue effect." They pointed out that immigration could decrease the extinction risk of an isolated population by boosting local numbers and increasing genetic diversity (leading to increased fitness). This concept only slightly modified island biogeographic theory by altering pr ...
... the concept of the "rescue effect." They pointed out that immigration could decrease the extinction risk of an isolated population by boosting local numbers and increasing genetic diversity (leading to increased fitness). This concept only slightly modified island biogeographic theory by altering pr ...
OS - BioMed Central
... plotted them on a map of the study area. For species that occurred in both the study area and the buffer zone, we again relied on habitat information to determine whether to include the species. For plants, we did not include those species for which current taxonomists recognize one or more infraspe ...
... plotted them on a map of the study area. For species that occurred in both the study area and the buffer zone, we again relied on habitat information to determine whether to include the species. For plants, we did not include those species for which current taxonomists recognize one or more infraspe ...
The diversity–stability debate
... in European grasslands were shown to be tightly coupled to the functional diversity of mutualistic arbuscular mycorrhizal fungi (AMF)31. In this system, large fluctuations in plant biomass were associated with low diversities of AMF, whereas more constant biomass and greater productivity accompanied ...
... in European grasslands were shown to be tightly coupled to the functional diversity of mutualistic arbuscular mycorrhizal fungi (AMF)31. In this system, large fluctuations in plant biomass were associated with low diversities of AMF, whereas more constant biomass and greater productivity accompanied ...
Scientific name
... summers, characteristic of the Mediterranean regions. Moreover, Cork oak trees act via biological processes to modify soil properties in the ecosystem. They enrich the soil in nutrients, attract different types of animals that supplement this modification, alter bulk density and porosity, and, there ...
... summers, characteristic of the Mediterranean regions. Moreover, Cork oak trees act via biological processes to modify soil properties in the ecosystem. They enrich the soil in nutrients, attract different types of animals that supplement this modification, alter bulk density and porosity, and, there ...
Law Office of Jack Silver
... This Notice alleges the DIRECTOR is responsible for TAKE of listed species by authorization ofdiversions and storage in the over-allocated Russian River and Gualala River watersheds, by consenting to improper use, and by failing to enforce existing regulations. The diversion of water from listed spe ...
... This Notice alleges the DIRECTOR is responsible for TAKE of listed species by authorization ofdiversions and storage in the over-allocated Russian River and Gualala River watersheds, by consenting to improper use, and by failing to enforce existing regulations. The diversion of water from listed spe ...
in Central Asia - Zoï Environment Network
... (GEF). This joint anniversary is more than symbolic. Cooperation between the GEF and Central Asian countries has included projects covering a range of ecosystems from deserts to seas to high mountains, and interventions from policy development to education to demonstration projects and many small im ...
... (GEF). This joint anniversary is more than symbolic. Cooperation between the GEF and Central Asian countries has included projects covering a range of ecosystems from deserts to seas to high mountains, and interventions from policy development to education to demonstration projects and many small im ...
introduction to invasive alien species
... billions of dollars every year, in lost production, control and mitigation efforts, loss of ecosystem services and many other ways. IAS can profoundly perturb environments, and communities or societies that value these in any way are negatively affected as a result. ...
... billions of dollars every year, in lost production, control and mitigation efforts, loss of ecosystem services and many other ways. IAS can profoundly perturb environments, and communities or societies that value these in any way are negatively affected as a result. ...
Protected species - The Woodland Trust
... ponds (they only need to be 50cm deep) with submerged vegetation and a neutral pH (although this is hard to control). The newts use plants to hide in and protect their eggs by folding them up in the leaves of plants or pond detritus. Great crested newt breeding season is around April-May. They will ...
... ponds (they only need to be 50cm deep) with submerged vegetation and a neutral pH (although this is hard to control). The newts use plants to hide in and protect their eggs by folding them up in the leaves of plants or pond detritus. Great crested newt breeding season is around April-May. They will ...
Introduced Species Management in Haida Gwaii (Queen Charlotte
... over a 20-year period (1976–1996) indicate that >34,000 animals have been harvested, in addition to food gathering by the Haida Nation (Laskeek Bay Conservation Society 1998). While the impact from browsing deer varies across the landscape, this species has spread to virtually all of the islands in ...
... over a 20-year period (1976–1996) indicate that >34,000 animals have been harvested, in addition to food gathering by the Haida Nation (Laskeek Bay Conservation Society 1998). While the impact from browsing deer varies across the landscape, this species has spread to virtually all of the islands in ...
Coexistence, niches and biodiversity effects on ecosystem functioning
... Additive partitioning of biodiversity effects The main analytical approach used to distinguish between the effects of overyielding and competitive dominance on productivity (or surrogates like herbaceous biomass) is the additive partitioning of biodiversity effects (Box 1; Loreau & Hector 2001). The ...
... Additive partitioning of biodiversity effects The main analytical approach used to distinguish between the effects of overyielding and competitive dominance on productivity (or surrogates like herbaceous biomass) is the additive partitioning of biodiversity effects (Box 1; Loreau & Hector 2001). The ...
Browsing Wildlife Species - Department of Primary Industries, Parks
... on your property is critical to deciding the correct control probably won’t all have strategy (See Table 1). come from the pasture or crop area. 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 opt ...
... on your property is critical to deciding the correct control probably won’t all have strategy (See Table 1). come from the pasture or crop area. 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 opt ...
An Index of Diversity and the Relation of Certain Concepts to Diversity
... MacArthur's model. Hairston (1959) and Turner (1961), however, found that increased heterogeneity resulted in a closer fit to MacArthur's model. King (1964) attempts to reconcile this contradiction. Whittaker (1964) found that plant species in a variety of vegetation types did not fit MacArthur's mo ...
... MacArthur's model. Hairston (1959) and Turner (1961), however, found that increased heterogeneity resulted in a closer fit to MacArthur's model. King (1964) attempts to reconcile this contradiction. Whittaker (1964) found that plant species in a variety of vegetation types did not fit MacArthur's mo ...
Identification of Potential NAtural heritage Sites in Arab Countries
... declared ~ World Natural Heritage Sites (one of them also Cultural). while ~ countries have not requested the declaration of any site, whether cultural or natural. Although the area of the Arab World is quite large and its natural heritage is quite imp0l1ant as well as quite fascinating, no movement ...
... declared ~ World Natural Heritage Sites (one of them also Cultural). while ~ countries have not requested the declaration of any site, whether cultural or natural. Although the area of the Arab World is quite large and its natural heritage is quite imp0l1ant as well as quite fascinating, no movement ...
Wildlife dynamics in the changing New England landscape
... individual species where practical, and major trends in species trajectories were identified. Emphasis was placed on mammals and birds for which data are readily available. Results Although species exhibited highly individualistic long-term dynamics in response to habitat change and human pressure, ...
... individual species where practical, and major trends in species trajectories were identified. Emphasis was placed on mammals and birds for which data are readily available. Results Although species exhibited highly individualistic long-term dynamics in response to habitat change and human pressure, ...
Habitat Diversity - Vision North Texas
... • Conserved Status: This ecoregion ranked medium in conserved status because there is only a small percentage of public and non-profit conservation land and private property operated under wildlife management plans. • Threats: This is the most severely altered of Texas’ ecoregions, since most of the ...
... • Conserved Status: This ecoregion ranked medium in conserved status because there is only a small percentage of public and non-profit conservation land and private property operated under wildlife management plans. • Threats: This is the most severely altered of Texas’ ecoregions, since most of the ...
VERTEBRATES: FISH, AMPHIBIANS, REPTILES, BIRDS, MAMMALS
... representing a trade-off for amphibians and other organisms that occupy lentic, freshwater systems. In ephemeral ponds, competition for resources is hypothesized to be low because the short hydroperiod prevents many species from occupying these systems. However, to exploit these systems, larval amph ...
... representing a trade-off for amphibians and other organisms that occupy lentic, freshwater systems. In ephemeral ponds, competition for resources is hypothesized to be low because the short hydroperiod prevents many species from occupying these systems. However, to exploit these systems, larval amph ...
Peterson et al. 2013
... 1670 m) is located where overlap between these species is common. Habitat partitioning at this site is representative of observations throughout the species’ overlapping range; M. laciniatus and M. guttatus often co-occur at small spatial scales, where M. guttatus is often perennial and appears to o ...
... 1670 m) is located where overlap between these species is common. Habitat partitioning at this site is representative of observations throughout the species’ overlapping range; M. laciniatus and M. guttatus often co-occur at small spatial scales, where M. guttatus is often perennial and appears to o ...
1 - Shepway District Council
... extent of semi-natural habitats that will be protected, restored and created in the 21st century … Two important functions of Protected Areas and other high-quality wildlife habitats will be as core areas for biodiversity and as connecting habitats within ecological networks … The early success of a ...
... extent of semi-natural habitats that will be protected, restored and created in the 21st century … Two important functions of Protected Areas and other high-quality wildlife habitats will be as core areas for biodiversity and as connecting habitats within ecological networks … The early success of a ...
Decomposition of Leaf Litter in a U.S. Saltmarsh is Driven by
... that was looped around the plastic ring at the bottom to prevent animals from entering or leaving the cage. The ring was completely sunk into the soil, securing the bottom of the mesh. In the center of the ring, the plastic pipe was inserted into the soil 80 cm deep and the net was tied above the to ...
... that was looped around the plastic ring at the bottom to prevent animals from entering or leaving the cage. The ring was completely sunk into the soil, securing the bottom of the mesh. In the center of the ring, the plastic pipe was inserted into the soil 80 cm deep and the net was tied above the to ...
Ecological indicator role of butterflies in Tam Dao National Park
... most conspicuous; moreover, the butterflies are observed easily and the species are better known than most other groups of insects making them good subjects of study. Assessing the environmental impact on plants and animals is usually difficult and expensive. One rather easy and cheap way to monitor ...
... most conspicuous; moreover, the butterflies are observed easily and the species are better known than most other groups of insects making them good subjects of study. Assessing the environmental impact on plants and animals is usually difficult and expensive. One rather easy and cheap way to monitor ...
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.