Temperature-dependent ultraviolet responses in zooplankton: Implications of climate change
ثبت نشده
چکیده
Climate warming and stratospheric ozone depletion increase temperature and ultraviolet (UV) in midto highlatitude ecosystems; however, little is known about the interactive effects of temperature and UV on organisms. We exposed Daphnia catawba, Leptodiaptomus minutus, and Asplanchna girodi to UV-B at four different temperatures: 10, 15, 20, and 258C. Elevated temperatures increased UV tolerance in D. catawba and L. minutus, species that depend heavily on photoenzymatic repair (PER), but decreased UV tolerance in A. girodi, a species that has less PER. Also, body size in Daphnia decreased with increasing UV dose. These results demonstrate that climate change can alter responses to UV through temperature-mediated effects in aquatic ecosystems, and these effects can be species-specific and dependent on
منابع مشابه
Temperature-dependent ultraviolet responses in zooplankton: Implications of climate change
Climate warming and stratospheric ozone depletion increase temperature and ultraviolet (UV) in midto highlatitude ecosystems; however, little is known about the interactive effects of temperature and UV on organisms. We exposed Daphnia catawba, Leptodiaptomus minutus, and Asplanchna girodi to UV-B at four different temperatures: 10, 15, 20, and 258C. Elevated temperatures increased UV tolerance...
متن کاملHydrologic responses of watershed assessment to land cover and climate change using soil and water assessment tool model
Predicting the impact of land cover and climate change on hydrologic responses using modeling tools are essential in understanding the movement and pattern of hydrologic processes within the watershed. The paper provided potential implications of land conversions and climate change scenarios on the hydrologic processes of Muleta watershed using soil and water assessment tool model. Model inputs...
متن کاملResponse of conifers to UV-B and climate in mountain areas
The present study was focused to examine the combined effects of climate and ultraviolet-B radiation on conifer tree-ring density. Statistical methods were employed to extract tree responses in annual ring density and to identify functional relationship in trees when the level of ultraviolet-B radiation changes regardless of climate variations. In this study, the consideration was given to the ...
متن کاملEvolutionary and plastic responses of freshwater invertebrates to climate change: realized patterns and future potential
We integrated the evidence for evolutionary and plastic trait changes in situ in response to climate change in freshwater invertebrates (aquatic insects and zooplankton). The synthesis on the trait changes in response to the expected reductions in hydroperiod and increases in salinity indicated little evidence for adaptive, plastic, and genetic trait changes and for local adaptation. With respe...
متن کاملImpact of Climate Change on Fisheries and Aquaculture Activities in Southern Iraq
The impacts on aquaculture and fisheries sectors from climate change in the southern part of Iraq will likely to be both positive and negative arising from direct and indirect impacts on natural resources. The main elements of climate change that could potentially impact fisheries and aquaculture activities in Iraq are temperature, rain patterns, shortage of freshwater, circulation, upwelling, ...
متن کامل