Sentences with phrase «alter food web»

The general goal of these projects was to improve our understanding of how the response of arctic marine ecosystems to climate warming will alter food web structure and ecosystem services provided to Northerners.

Ocean acidification and other aspects of global climate change are about to alter the food web — with consequences for all life on earth.

A study published in Environmental Toxicology and Chemistry used American dippers to determine if run - of - river (RoR) dams altered food webs and mercury levels at 13 stream sites in British Columbia.

MEDDLESOME MERCURY Increased runoff into Earth's oceans could increase methylmercury concentrations in marine ecosystems by altering the food web, new laboratory tests show.

At the same time, climate change is likely to alter food webs and patterns of mercury transport in places such as the Arctic, which will further complicate efforts to keep the contaminant out of people and their food.

The impacts of anthropogenic climate change include decreased ocean productivity, altered food web dynamics, reduced abundance of habitat - forming species, shifting species distributions, and a greater incidence of disease.

The impacts of anthropogenic climate change so far include decreased ocean productivity, altered food web dynamics, reduced abundance of habitat - forming species, shifting species distributions, and a greater incidence of disease.

Not exact matches

«We don't yet know the extent to which ocean acidification could alter these additional predator - prey interactions, but there is clear potential for broader disruption of links within shoreline food webs.»

«The earthworm invasion has altered the biodiversity and possibly functioning of the forest ecosystems, because it affects the entire food web as well as water and nutrient cycles», says Dylan Craven, lead author of the study.

Managing fish in human - altered rivers is a challenge because their food webs are sensitive to environmental disturbance.

In recent years, it seems that the number of jellyfish have been on the rise, fueling concerns that their voracious appetites for microscopic sea creatures might have a negative impact on the food web and that their density might alter how fish behave — young fish seek refuge among the jellies» tentacles, for example — and consequently hamper the ability of predators to catch these fish.

In lakes, elevated chloride levels have been shown to alter the composition of fish, invertebrates, and the plankton that form the base of the aquatic food web.

Thus, past and future increases in atmospheric nitrogen deposition have the potential to alter the base of the marine food web; and, in the long term, the structure of the ecosystem.

At some sites, amphetamine concentrations are high enough to alter the base of the aquatic food web.

The way in which fishing alters size - structured food web interactions has implications for the structure and function of kelp forest ecosystems.

«While the changing seascape has dramatically altered and increased the diversity and number of small creatures at the base of the marine food web, we still don't know how these changes in the ecosystem will propagate through the entire chain.

The dramatic retreat of Arctic sea ice in recent years is changing disease patterns, altering the local food web and lowering the region's ability to reflect sunlight, according to two new studies.

«This can help us determine mechanisms that influence species composition in planktonic communities exposed to red tides, and suggests that these chemical cues could alter large - scale ecosystem phenomena, such as the funneling of material and energy through marine food webs.»

Recent research was reported in an article in the Canadian Journal of Fisheries and Aquatic Sciences, which found that high levels of road salt can alter the sex ratios of frogs; an article in Environmental Toxicology and Chemistry, which documented the effects of road salt and a common insecticide on wetland food webs; and an article in Environmental Pollution, which examined potential interactions between road salt, predators, and competitors in wetland food webs.

In a warming world, these species are «biotic multipliers,» increasing the extinction risk and altering the ranges of many other species in the food web.

Organisms less likely to shift to higher latitudes because they are more tolerant of the direct effects of climate change or less mobile may also be affected because climate change will alter the existing food webs on which they depend.

Changes to the Arctic food web, from blooming phytoplankton to dwindling polar bears, will irreversibly alter the ecosystem.

With climate change, these waters will warm and acidify, potentially altering the marine food web.

Both air and adjacent stream temperatures were noted to be several degrees or more higher after industrial logging, to the point that habitable temperature bands for andromonous fish were compromised, and aquatic food webs altered.

In addition to altering marine food webs, iron fertilization could produce greenhouse gases more potent than carbon dioxide, such as nitrous oxide and methane, or block sunlight needed by deep coral reefs.

Finally, the impacts of climate change on plant growth could alter ecological interactions among species with potential cascading effects on food webs; integrating changes in suitable plant growing days and NPP within recently developed General Ecosystem Models [40] could provide some insights into the magnitude of these changes.

Natural climate variation and anthropogenic stressors alter biochemical cycling, food web dynamics, and the fitness of species [1]--[3].