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Connected by Tides: Missing Links in...

Zilz, Zoe Lucille,

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Connected by Tides: Missing Links in California's Coastal Ecotone /

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Connected by Tides: Missing Links in California's Coastal Ecotone // Zoe Lucille Zilz.
作者:	Zilz, Zoe Lucille,
面頁冊數:	1 electronic resource (159 pages)
附註:	Source: Dissertations Abstracts International, Volume: 86-08, Section: B.
Contained By:	Dissertations Abstracts International86-08B.
標題:	Ecology. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31640655
ISBN:	9798302880604

Connected by Tides: Missing Links in California's Coastal Ecotone /
Zilz, Zoe Lucille,

Connected by Tides: Missing Links in California's Coastal Ecotone /Zoe Lucille Zilz. - 1 electronic resource (159 pages)

Source: Dissertations Abstracts International, Volume: 86-08, Section: B.

On the boundary between land and sea, the Californian coastal ecotone is the location of many unique species interactions. My dissertation focuses on this unique and threatened strip of habitat and the trophic interactions therein. The objective of this body of work was to create new methodology and tools for deeper understanding of the coastal ecotone to promote conservation aims such as the preservation of habitat connectivity and ecosystem-based management. Chapter 1 outlines the construction of a comprehensive, highly resolved food web, inclusive of parasites, for the California rocky intertidal zone. This food web is the first of its kind for California and has the potential to provide managers, coastal conservation agencies, and marine protected area designers with high quality species interaction data, critical for understanding the cascading effects of species protection or loss. Included is a highly interactive online visualization tool that allows end users to subset and interrogate the food web network. Chapter 2 focuses in on one type of interaction within food webs, describing how our understanding of trophic networks changes when we incorporate parasites and their concomitant predation-or the accidental consumption of parasites by a predator-using the California rocky intertidal food web as an example. I also compare the California rocky intertidal food webs to other similarly constructed high resolution food webs (e.g. inclusive of symbionts and concomitant predation) using commonly reported metrics such as trophic generality, connectance, and mean trophic level. Chapter 3 expands beyond the trophic interactions insular to the rocky intertidal zones and explores how terrestrial consumers interact with the coastal ecotone in remote and protected areas of Southern California. Specifically, I used camera traps to capture terrestrial wildlife moving throughout and foraging in ecotonal habitats (beaches, rocky reefs, estuaries, bluffs, and sand dunes) on California's remote Gaviota Coast. Camera trap footage revealed several terrestrial species consistently using these habitats, most notably coyote, deer, small rodents, and feral hogs. Mammal beach activity increased in times of terrestrial resource scarcity-when rainfall was scarce-and decreased in proximity to human disturbance. Terrestrial mammals, especially coyotes, were captured scavenging and hunting on beaches, dragging carcasses of marine prey (birds, marine mammals, invertebrates, and fish) from the intertidal to adjacent vegetated habitats. These previously unquantified interactions between terrestrial consumers and marine resources indicate a potential movement of marine to terrestrial resource subsidies, but only where there are no anthropogenic barriers to coastal access by wildlife. Much of the coastal ecotone is heavily exploited by humans for food, housing development, industry, and recreation especially in California. A comprehensive baseline understanding of how species interact in coastal ecotones is critical for ecosystem-based management in a time of global climate change, urban sprawl, and sea level rise.

English

ISBN: 9798302880604Subjects--Topical Terms:

516476
Ecology.
Subjects--Index Terms:

Coastlines

Connected by Tides: Missing Links in California's Coastal Ecotone /
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