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Response of Crustaceans to Ocean Warming

Salt Lake City 6/25/2014 2:32:38 AM

According to Storch et al. (2009) , "temperature is often invoked as the main determinant of distribution ranges and boundaries for marine and terrestrial species," and they note the larval stages of many marine species "are more vulnerable to thermal and osmotic stresses than adults." Consequently, they explored the rigidity of this temperature determinant of livable range for the Chilean kelp crab (Taliepus dentatus) in its most temperaturesensitive larval state. Specifically, working with stage zoea I larvae of two populations of the crab-one from Southern Chile (SC, 43°54'S) and one from Central Chile (CC, 33°29'S)-Storch et al. "measured temperature-dependent activity, oxygen consumption, cardiac performance, body mass and the carbon and nitrogen composition in order to (1) examine thermal effects from organismal to cellular levels, and (2) compare the thermal tolerance of larvae from two environmental temperature regimes." 
Among many other things, the six researchers report "the thermal tolerance window of zoea from SC was found to be shifted to lower temperatures when compared with those from CC," which could be equally accurately expressed as "the thermal tolerance window of zoea from CC was found to be shifted to higher temperatures when compared with those from SC." Given such, the Chilean and German scientists conclude "the small but clear shift between thermal tolerance windows between populations suggests an optimization of reaction norms and local adaptation in larvae of T. dentatus," noting "this differentiation allows the species to cover a wider range of distribution than when restricted to one and the same thermal window for all populations," which suggests the larval form of the kelp crab is capable of adapting to both higher or lower temperatures relative to those at which it may have lived for long periods in the past. 
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The Influence of CO2 on Plant Antioxidants

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Coral Reef Responses to Temperature Stress: Thermal Adaptation

Coral Reef Responses to Temperature Stress: Thermal Adaptation. As living entities, corals are not only acted upon by the various elements of their environment,they also react or respond to them.

Released On: 12/29/2014
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Forest Growth Response to CO2

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Released On: 12/29/2014
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Onward Marches the Great Pause

Onward Marches the Great Pause. Since October 1996 there has been no global warming at all (Fig. 1).

Released On: 12/29/2014
Views: 3931

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RESPONSE OF VARIOUS MARINE ANIMALS TO OCEAN ACIDIFICATION AND WARMING

RESPONSE OF VARIOUS MARINE ANIMALS TO OCEAN ACIDIFICATION AND WARMING.

Released On: 12/8/2014
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FACE EXPERIMENTS AND GRASSLAND SPECIES

FACE EXPERIMENTS AND GRASSLAND SPECIES.

Released On: 12/8/2014
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EFFECTS OF OCEAN ACIDIFICATION ON FISH

EFFECTS OF OCEAN ACIDIFICATION ON FISH.

Released On: 12/8/2014
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Response of Fish to Ocean Warming

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Released On: 11/21/2014
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Long-Term Open-Top-Chamber Study of Sour Orange Trees

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Released On: 11/21/2014
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The Global Medieval Warm Period

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Released On: 11/21/2014
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Growth Rates of Old versus Young Forest Trees

Growth Rates of Old versus Young Forest Trees. The planting and preservation of forests has long been acknowledged to be an effective and environmentally-friendly means for slowing climate-model-predicted CO2-induced global warming.

Released On: 9/30/2014
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Tropical Trees

Citation: Center for the Study of Carbon Dioxide and Global Change. "Tropical Trees.”

Released On: 9/30/2014
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Water Use Efficiency of Agricultural Species

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Released On: 9/30/2014
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GLOBAL TEMPERATURES AND BIOSPHERIC PRODUCTIVITY

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Released On: 9/13/2014
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REWRITING SUNSPOT HISTORY

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Released On: 9/13/2014
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ANALYSIS OF THE SECOND ORDER DRAFT OF THE WORKING GROUP I CONTRIBUTION TO IPCC 5AR

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THE ECONOMICS OF BIOFUELS

The economics of biofuels. Aside from rejecting biofuel expansion and use for environmental reasons.

Released On: 9/13/2014
Views: 3859

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