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Effects of snail grazing and environ...

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Effects of snail grazing and environmental factors on the expansion of mangroves into salt marshes.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Effects of snail grazing and environmental factors on the expansion of mangroves into salt marshes./
Author:	Eady, Stephanie.
Description:	81 p.
Notes:	Adviser: Michael C. Slattery.
Contained By:	Masters Abstracts International45-04.
Subject:	Biology, Botany. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1441407

Effects of snail grazing and environmental factors on the expansion of mangroves into salt marshes.
Eady, Stephanie.

Effects of snail grazing and environmental factors on the expansion of mangroves into salt marshes. - 81 p.

Adviser: Michael C. Slattery.

Thesis (M.S.)--Texas Christian University, 2007.

Coastal wetlands are ecosystems that provide goods and services critical to our way of life. As dependent as we are upon these features, our understanding of their responses to global factors such as climate, sea-level rise, and eutrophication is limited. The transitional community where tropical mangrove meets temperate salt marsh is an ideal setting to test hypotheses about vegetative shifts caused by environmental changes. Black mangrove ( Avicennia germinans) is at its northernmost boundary within the Gulf of Mexico where it commingles with smooth cordgrass (Spartina alterniflora ). The purpose of this study was to examine what role grazing by the marsh periwinkle (Littoraria irrorata) plays in the competitive interactions between smooth cordgrass and black mangrove. This study centers on coastal Louisiana where black mangroves have been expanding for the past fifteen years. Our results indicate that environmental stressors such as nutrient deficiency or salinity have a greater impact on mangrove-marsh competition than snail grazing in healthy cordgrass stands, but that grazing effects are important in stands already stressed by environmental factors. These findings are consistent with recent observations that mangrove expansion increased following large-scale dieback of salt marsh in Louisiana due to drought-related stress.Subjects--Topical Terms:

1017825
Biology, Botany.

Effects of snail grazing and environmental factors on the expansion of mangroves into salt marshes.
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005 20100629
008 100629s2007 ||||||||||||||||| ||eng d
035 $a (UMI)AAI1441407
035 $a AAI1441407
040 $a UMI $c UMI
100 1 $a Eady, Stephanie. $3 1017830
245 1 0 $a Effects of snail grazing and environmental factors on the expansion of mangroves into salt marshes.
300 $a 81 p.
500 $a Adviser: Michael C. Slattery.
500 $a Source: Masters Abstracts International, Volume: 45-04, page: 1924.
502 $a Thesis (M.S.)--Texas Christian University, 2007.
520 $a Coastal wetlands are ecosystems that provide goods and services critical to our way of life. As dependent as we are upon these features, our understanding of their responses to global factors such as climate, sea-level rise, and eutrophication is limited. The transitional community where tropical mangrove meets temperate salt marsh is an ideal setting to test hypotheses about vegetative shifts caused by environmental changes. Black mangrove ( Avicennia germinans) is at its northernmost boundary within the Gulf of Mexico where it commingles with smooth cordgrass (Spartina alterniflora ). The purpose of this study was to examine what role grazing by the marsh periwinkle (Littoraria irrorata) plays in the competitive interactions between smooth cordgrass and black mangrove. This study centers on coastal Louisiana where black mangroves have been expanding for the past fifteen years. Our results indicate that environmental stressors such as nutrient deficiency or salinity have a greater impact on mangrove-marsh competition than snail grazing in healthy cordgrass stands, but that grazing effects are important in stands already stressed by environmental factors. These findings are consistent with recent observations that mangrove expansion increased following large-scale dieback of salt marsh in Louisiana due to drought-related stress.
590 $a School code: 0229.
650 4 $a Biology, Botany. $3 1017825
650 4 $a Biology, Ecology. $3 1017726
650 4 $a Environmental Sciences. $3 676987
690 $a 0309
690 $a 0329
690 $a 0768
710 2 $a Texas Christian University. $3 1017819
773 0 $t Masters Abstracts International $g 45-04.
790 $a 0229
790 1 0 $a Slattery, Michael C., $e advisor
791 $a M.S.
792 $a 2007
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1441407