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The ecology of a parasitic plant and...

University of California, Santa Cruz.

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The ecology of a parasitic plant and its host plant in a central California salt marsh.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	The ecology of a parasitic plant and its host plant in a central California salt marsh./
Author:	Griffith, Katie A.
Description:	104 p.
Notes:	Adviser: Raphael Kudela.
Contained By:	Dissertation Abstracts International69-05B.
Subject:	Biology, Botany. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3317378
ISBN:	9780549657002

The ecology of a parasitic plant and its host plant in a central California salt marsh.
Griffith, Katie A.

The ecology of a parasitic plant and its host plant in a central California salt marsh. - 104 p.

Adviser: Raphael Kudela.

Thesis (Ph.D.)--University of California, Santa Cruz, 2008.

Parasitic plants are understudied despite their prevalence in natural communities. Cuscuta salina, salt marsh dodder, grows in association with its preferred host, Sarcocornia pacifica , in salt marshes along the western coast of the United States. This dissertation is an experimental investigation of (1) the distribution and abundance of C. salina, (2) the interaction between C. salina and S. pacifica across multiple levels of nitrogen and salinity, and (3) the effect of artificial tidal restrictions on marsh sediment and S. pacifica.

ISBN: 9780549657002Subjects--Topical Terms:

1017825
Biology, Botany.

The ecology of a parasitic plant and its host plant in a central California salt marsh.
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020 $a 9780549657002
035 $a (UMI)AAI3317378
035 $a AAI3317378
040 $a UMI $c UMI
100 1 $a Griffith, Katie A. $3 1028886
245 1 4 $a The ecology of a parasitic plant and its host plant in a central California salt marsh.
300 $a 104 p.
500 $a Adviser: Raphael Kudela.
500 $a Source: Dissertation Abstracts International, Volume: 69-05, Section: B, page: 2730.
502 $a Thesis (Ph.D.)--University of California, Santa Cruz, 2008.
520 $a Parasitic plants are understudied despite their prevalence in natural communities. Cuscuta salina, salt marsh dodder, grows in association with its preferred host, Sarcocornia pacifica , in salt marshes along the western coast of the United States. This dissertation is an experimental investigation of (1) the distribution and abundance of C. salina, (2) the interaction between C. salina and S. pacifica across multiple levels of nitrogen and salinity, and (3) the effect of artificial tidal restrictions on marsh sediment and S. pacifica.
520 $a The distribution and abundance of C. salina in the Elkhorn Slough watershed is constrained by abiotic conditions (mainly the intertidal and estuarine gradient), S. pacifica quality (tissue salinity levels), and recruitment (in wrack deposits). Seed germination is greatest in freshwater and declines with increasing salinity. Germination also trends toward being lower at lower tidal heights. There is a greater probability of a C. salina seedling establishing successfully on S. pacifica with increasing tidal heights. This chapter demonstrates the importance of multiple factors in determining pattern and process in C. salina distribution and abundance at Elkhorn Slough.
520 $a The interaction between C. salina and S. pacifica was examined in the greenhouse under 3 levels of nitrogen additions and 4 levels of salt additions. Although C. salina did not affect S. pacifica biomass, it did significantly affect S. pacifica tissue salinity and tissue nitrogen. However, these effects interacted with salinity and nitrogen treatments. S. pacifica was also affected by a strong interaction between nitrogen and salinity treatments. C. salina coiled more S. pacifica stems under the two lower nitrogen treatment levels compared to the highest treatment level. This chapter demonstrates the importance of the abiotic environment in structuring this parasitic plant---host plant interaction.
520 $a The final chapter of this dissertation examines the effects of artificial tidal restrictions on sediment and S. pacifica tissue. Tidal restriction affected sediment quality, but not S. pacifica tissue quality. However, the large effects of spatial and temporal variation associated with site, season and tidal height may exert an even greater control over marsh dynamics than the effects of tidal restriction alone.
590 $a School code: 0036.
650 4 $a Biology, Botany. $3 1017825
650 4 $a Biology, Ecology. $3 1017726
690 $a 0309
690 $a 0329
710 2 $a University of California, Santa Cruz. $3 1018764
773 0 $t Dissertation Abstracts International $g 69-05B.
790 $a 0036
790 1 0 $a Kudela, Raphael, $e advisor
791 $a Ph.D.
792 $a 2008
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3317378