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The role of colony size in the resis...

Charpentier, Bernadette.

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The role of colony size in the resistance and tolerance of scleractinian corals to bleaching caused by thermal stress.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	The role of colony size in the resistance and tolerance of scleractinian corals to bleaching caused by thermal stress./
作者:	Charpentier, Bernadette.
面頁冊數:	130 p.
附註:	Source: Masters Abstracts International, Volume: 52-06.
Contained By:	Masters Abstracts International52-06(E).
標題:	Biology, Oceanography. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MS26764
ISBN:	9780499267641

The role of colony size in the resistance and tolerance of scleractinian corals to bleaching caused by thermal stress.
Charpentier, Bernadette.

The role of colony size in the resistance and tolerance of scleractinian corals to bleaching caused by thermal stress. - 130 p.

Source: Masters Abstracts International, Volume: 52-06.

Thesis (M.Sc.)--University of Ottawa (Canada), 2014.

In 2005 and 2010, high sea surface temperatures caused widespread coral bleaching on Jamaica's north coast reefs. Three shallow (9m) reef sites were surveyed during each event to quantify the prevalence and intensity of coral bleaching. In October 2005, 29-57% of the colonies surveyed were bleached. By April 2006, 10% of the corals remained pale/partially bleached. Similarly, in October 2010, 23-51% of corals surveyed at the same sites were bleached. By April 2011, 12% of the colonies remained pale/partially bleached. Follow-up surveys revealed low coral mortality following both events, with an overall mean of 4% partial colony mortality across all species and sites observed in April 2006, and 2% in April 2011. Mixed effects models were used to quantify the relationship between colony size and (a) bleaching intensity, and (b) bleaching related mortality among coral species. The bleaching intensity model explained 51% of the variance in the bleaching response observed during the two events. Of this 51%, fixed effects accounted for &sim;26% of the variance, 17% of which was attributed to species-specific susceptibility to bleaching , 5% to colony size, <1% colony morphology and 4% to the difference in bleaching intensity between the two events. The random factor (site) accounted for the remaining &sim;25% of the variance. The mortality model explained 16% of the variance in post bleaching mortality with fixed effects, including colony size, morphology and species explaining &sim;11% of the variance, and the random effect (site) explaining 5%. On average, there was a twofold difference in bleaching intensity between the smallest and the largest size classes. Modelling the relationship between colony level characteristics and site-specific environmental factors on coral species' susceptibility to thermal stress can shed light on community level responses to future disturbances.

ISBN: 9780499267641Subjects--Topical Terms:

783691
Biology, Oceanography.

The role of colony size in the resistance and tolerance of scleractinian corals to bleaching caused by thermal stress.
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