Ecological impact of a species resulting from its arrival in an environment before other species
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In ecology, a priority effect refers to the impact that a particular species can have on community development as a result of its prior arrival at a site.[1][2][3] There are two basic types of priority effects: inhibitory and facilitative. An inhibitory priority effect occurs when a species that arrives first at a site negatively affects a species that arrives later by reducing the availability of space or resources. In contrast, a facilitative priority effect occurs when a species that arrives first at a site alters abiotic or biotic conditions in ways that positively affect a species that arrives later.[3][4] Inhibitory priority effects have been documented more frequently than facilitative priority effects.[citation needed] Studies indicate that both abiotic (e.g., resource availability) and biotic (e.g., predation) factors can affect the strength of priority effects.[citation needed] . Priority effects are a central and pervasive element of ecological community development that have significant implications for natural systems and ecological restoration efforts.[3][5][citation needed]
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In ecology, a priorityeffect refers to the impact that a particular species can have on community development as a result of its prior arrival at a site...
of the effect of pesticides, monocultures and genetically modified crops to see if the anthropogenically created problems can have an effect pollination...
pattern of occupancy Species-area curve Species discovery curve Storage effect Colwell, Robert K. (2009). "Biodiversity: Concepts, Patterns and Measurement"...
with trophic level over 4 (carnivores that eat other carnivores). This effect, called mesopredator release, occurs in terrestrial and marine ecosystems;...
The Allee effect is a phenomenon in biology characterized by a correlation between population size or density and the mean individual fitness (often measured...
species have a large effect on ecosystem function, while rare species tend to have a small effect. Keystone species tend to have an effect on ecosystem function...
species that make up the ecological community of its habitat (the umbrella effect). Species conservation can be subjective because it is hard to determine...
A keystone species is a species that has a disproportionately large effect on its natural environment relative to its abundance. The concept was introduced...
introduced to parts of Britain, continental Europe and South Africa. Its effect on populations of nesting birds is often serious because of consumption...
population size Inbreeding depression Human population Metapopulation Rescue effect Holsinger, Kent (2007-09-04). "Types of Stochastic Threats". EEB310: Conservation...
theory Occupancy–abundance relationship Population viability analysis Priorityeffect Rapoport's rule Relative abundance distribution Relative species abundance...
New York, NY: Gale. pp. 118–200. ISBN 978-0-02-865700-4. "DDT Ban Takes Effect". United States Environmental Protection Agency. 1972-12-31. Archived from...
causing humans to continuously fragment landscapes and thus increase the edge effect. This change in landscape ecology is proving to have consequences. Generalist...
species are equally abundant in the dataset, changing the value of q has no effect, but species diversity at any value of q equals species richness. Negative...
species of algae. The relative abundance of nitrogen and phosphorus can in effect determine which species of algae come to dominate. Algae are a very important...
plants as well as animals at the community junction is called the edge effect and is essentially due to a locally broader range of suitable environmental...
Africa's Cape Town region, analysis demonstrated that the restoration of priority source water sub-catchments through the removal of thirsty alien plant...
develop defenses against herbivores such as chemical defenses. Cascade effect Energy flow (ecology) Marine trophic level Mesopredator release hypothesis...
consumer on the resource. The effect of the resource on the consumer is positive, (the consumer gets to eat) and the effect on the resource by the consumer...
encounter with items, h=handling time, e=energy gained per encounter. In effect, this would indicate that a herbivore in a dense forest would spend more...
Without priority inheritance, process M could preempt process L during the critical section and delay its completion, in effect causing the lower-priority process...
of the seabed. The introduction of alien species can have a devastating effect on native wildlife – through increased predation, through competition for...
provide winter or year-round homes and food for cormorants. Cormorants' effect on the aquaculture industry is significant, with a dense flock capable of...
be regarded as exclusively exploitative or interference. Separating the effect of resource use from that of interference is not easy. A good example of...
biogeographic basis. WWF Global 200 The World Wildlife Fund—WWF identified 43 priority marine ecoregions, as part of its Global 200 initiative. List of marine...
Global Information
