Undesirable expatriates: Preventing the spread of invasive animals
...place native animals through resource competition, predation or disease-- ushering in biodiversity loss. Globally, invasive species are the second leading cause of animal extinction, preceded only by habitat loss. Not all introduced animals become invasive. When moved into a foreign environment, many animals ...Internet viruses help ecologists control invasive species
...of Ontario's York University has demonstrated that predation by the spiny water flea causes an average loss of three zooplankton species. Thus, as the species spreads, it could cause loss of thousands of populations of zooplankton species in Ontario alone. ...Ocean climate predicts elk population in Canadian Rockies
...at the combination of positive NPO values and wolf predation were related to 50 per cent declines in the elk population. Hebblewhite noted that positive NPO values and severe weather in the Canadian Rockies are occurring more frequently, and the trend is likely related to global warming. However, he added tha...Proposal would allow wild animals to roam North America
...ome major attitude shifts. That includes realizing predation is a natural role, and that people are going to have to take precautions." He said that using large tracts of private land are probably the most promising places to start, with each step carefully guided by the fossil record and the involvement of e......larvae to exit the estuary swiftly and thus reduce predation risk, but not when females incubated in burrows that were too wide or narrow,?deRivera writes in her paper. “The effect of burrow aperture on incubation duration may explain why females sampled many male burrows as they searched for a mate and why fe...Marine Reserves Protect Coral Reefs
...t grouper to swallow. This 'escape' from a risk of predation means that most reserves are unlikely to reduce the amount of grazing even after the number of predators rises. "Diving in the Exuma Cays Land and Sea Park was fun because a large number of sharks turned up to watch us work. Sharks have been heavi......ermanent social groups. Most ecologists agree that predation pressure is one of the major adaptive reasons for this group living. In this way there are more eyes and ears to locate the predators and more individuals to mob them if attacked or to confuse them by scattering. There are a number of reasons that li......t. Such conflicts result in livestock depredation, predation on domestic dogs and killing and mauling of human beings. Perhaps, the most unfortunate part of the whole thing is the fear, dislike and the wider social insecurities it generates among the minds of people. The problem is acute in Himachal Pradesh, U...