how climate change affect biodiversity?
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Healthy ecosystems and rich biodiversity are fundamental to life on our planet. Climate change is affecting the habitats of several species, which must either adapt or migrate to areas with more favourable conditions. Even small changes in average temperatures can have a significant effect upon ecosystems.
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As temperatures rise, mass coral bleaching events and infectious disease outbreaks are becoming more frequent. ... Climate change will affect coral reef ecosystems, through sea level rise, changes to the frequency and intensity of tropical storms, and altered ocean circulation patterns.
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Climate change is likely to have a mixture of positive and negative impacts on different parts of the food system, depending on the interplay between gradual temperature increase, extreme weather events, the CO2 fertilisation effect, changes in water availability, economic effects (e.g. trade), demographics and ...
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Climate change is accelerating the sixth extinction World biodiversity has declined alarmingly in half a century: more than 25,000 species, almost a third of those known, are in danger of disappearing. Climate change will be responsible for 8% of these.
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Climate change affects human health and wellbeing through more extreme weather events and wildfires, decreased air quality, and diseases transmitted by insects, food, and water.
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Because climate determines plant growth, it also influences the number and variety of other organisms in a terrestrial biome. Biodiversity generally increases from the poles to the equator. It is also usually greater in more humid climates.
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Impacts of climate change on our natural resources warming streams and lakes that reduce cold water fish habitats, resulting in a decline in certain fish species and recreational fishing opportunities.
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These climate change impacts are in part due to how we have altered land use. Turning natural areas into cities or agricultural fields not only diminishes biodiversity, but can make warming worse by chopping down trees and plants that help cool the planet.
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Changes associated with climate change that will affect the Great Barrier Reef (GBR) include rising sea and air temperatures, ocean acidification, nutrient enrichment (via changes in rainfall regimes), altered light levels, more extreme weather events, changes to ocean circulation, and sea- level rise.
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How does climate change affect biodiversity? If temperature and other abiotic factors go out of an organism's tolerance range, organisms must migrate to more suitable land or face extinction. 1.5-2.5 C change in temperature=30% of species will die, 3.5 C change=40-70% will become extinct.
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Climate change affects food production and availability, access, quality, utilization, and stability of food systems. In short, it impacts all aspects of the food system. Extreme weather-related disasters are increasing and reduce the yields of major crops. Higher levels of CO2 reduce the nutritional value of crops.
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Climate change is modifying fish distribution and the productivity of marine and freshwater species. ... The effect of sea level rise means that coastal fishing communities are significantly impacted by climate change, while changing rainfall patterns and water use impact on inland freshwater fisheries and aquaculture.
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In addition to increasing global temperatures, the impacts of climate change include extreme weather events such as drought, hurricanes and rising sea levels. ... In addition to increased rates of disease and degraded habitats, climate change is also causing changes in species themselves, which threaten their survival.
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Global warming is likely to affect terrestrial ecoregions. Increasing global temperature means that ecosystems will change; some species are being forced out of their habitats (possibly to extinction) because of changing conditions, while others are flourishing.
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Changes in water temperature can affect the environments where fish, shellfish, and other marine species live. As climate change causes the oceans to become warmer year-round, populations of some species may adapt by shifting toward cooler areas. ... Oceans are becoming more acidic.
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Climate is an important environmental influence on ecosystems. Changing climate affects ecosystems in a variety of ways. For instance, warming may force species to migrate to higher latitudes or higher elevations where temperatures are more conducive to their survival.
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["Climate change. Changes in climate throughout our planet's history have, of course, altered life on Earth in the long run — ecosystems have come and gone and species routinely go extinct. ... ", 'Deforestation and habitat loss. Image: Nelson Luiz Wendel / Getty Images. ... ', 'Overexploitation. ... ', 'Invasive species. ... ', 'Pollution.']