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Biological interaction


Biological interactions are the effects that the organisms in a community have on one another. ... Amensalism is an interaction where an organism inflicts harm to another organism without ... the re...

What is the name for a disturbance that does not hurt the ecosystem


Secondary disturbance ... Secondary disturbance. ... What is the name for a disturbance that harms some organism but does not hurt the ecosystem? secondary ...

Disturbance - National Wildlife Federation


Fire is one of the many natural disturbances that effect ecosystems every year. What is a Natural ... The results of a disturbance can be short-lived or long-term.

Ecology: Organisms and Their Environments Terms - Shmoop


Some examples of abiotic factors in an environment include precipitation, ... However, colonizers do not often compete well with other species once a ... where one organism benefits from the relationship, and the other receives no harm or benefit. ... Ecosystem studies in ecology explore the interactions between organisms, ...

Invasive Species - US Forest Service


Apr 29, 2015 ... A species is invasive when it is both nonnative to the ecosystem in which it is found and capable of causing environmental, economic, or human harm. ... In addition to their negative effects, some invasive species may have positive traits ... in an ecosystem does not mean that a species will become invasive.

Environmental Impacts of Mountain Biking: Science Review and ...


Trail construction, use, and maintenance can also be harmful when trails divide sensitive or rare plant ... Here are some recommendations to reduce vegetation impacts: .... Soil can be eroded by wind, but generally, erosion is caused by flowing water. .... Even very localized disturbance can harm rare or endangered species.

Chapter 25: Community Ecology


two species can occupy the same niche indefinitely without ... Some organisms use others, neither hurting or ... Disturbances can disrupt ... Each organism in an ecosystem confronts the challenge of .... coexist on a long-term basis, either resources must not be ..... these plants without harm, often as their exclusive food.

Status of and Threat to Coral Reefs | International Coral Reef Initiative


The majority of reef loss or damage is not deliberate. ... In addition to this, long- term changes in the oceans and atmosphere (rising sea ... fishing of not only deep-water commercial fish, but key reef species as well. Overfishing of certain species near coral reefs can easily affect the reef's ecological balance and biodiversity...

Corals and Human Disturbance - UNEP


The deposition rate for individual coral species varies, but is generally considered ... through their symbiotic relationship with minute algae ( dinoflagellates) called ... Larvae do not settle on rubble and thus replenishment and rehabilitation is minimal. ... some which have smothered and poisoned corals and other organisms.

Major Causes of Wetland Loss and Degradation


Wetlands form as a result of certain hydrologic conditions which cause the ... predator, and parasite species tolerant of disturbed environments (Harris ... dissolved oxygen levels, can cause stress or mortality of aquatic organisms. .... Information about methods of mosquito control that do not degrade wetland ecosystems ...

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What is the name for a disturbance that removes most of the ...


Primary ... What is the name for a disturbance that removes most of the organisms and .... What organism does most of the work in mixing humus into soil? ... name for a disturbance that harms some organism but does not hurt the ecosystem?

Grasslands Issues - Grasslands Conservation Council


Grassland ecosystems are more endangered than coastal old growth forests. ... Some types of disturbance can be predicted, such as annual flooding of riparian ... Some of their activities may have caused heavy, localised disturbances, but they .... The reasons why trees are encroaching on the grasslands in this way are not ...

Africanized Honey Bee - Columbia University


Mar 1, 2002 ... Common Name: Africanized Honey Bee (AHB), Africanized Bees, ... Africanized Honey Bees and European Honey Bees may be similar in appearance, but not in ... numbers to disturbances that European Honey Bees would ignore. ... However, European Honey Bees did not perform well in the tropical ...