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Riverine Reserves: The Conservation ...

Koning, Aaron A.

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Riverine Reserves: The Conservation Benefits of Spatial Protection for Rivers in the Context of Environmental Change.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Riverine Reserves: The Conservation Benefits of Spatial Protection for Rivers in the Context of Environmental Change./
作者:	Koning, Aaron A.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
面頁冊數:	169 p.
附註:	Source: Dissertation Abstracts International, Volume: 79-11(E), Section: B.
Contained By:	Dissertation Abstracts International79-11B(E).
標題:	Limnology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10830614
ISBN:	9780438082700

Riverine Reserves: The Conservation Benefits of Spatial Protection for Rivers in the Context of Environmental Change.
Koning, Aaron A.

Riverine Reserves: The Conservation Benefits of Spatial Protection for Rivers in the Context of Environmental Change. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 169 p.

Source: Dissertation Abstracts International, Volume: 79-11(E), Section: B.

Thesis (Ph.D.)--The University of Wisconsin - Madison, 2018.

This dissertation explores the effects of community-initiated and enforced no-take conservation reserves in rivers of northwestern Thailand. There, like many other areas in Southeast Asia, humans have high nutritional reliance on inland fisheries, and in response to perceived declines in catches, communitites have responded by creating conservation reserves. These reserves, howerver, occur across a landscape that has also changed rapidly in past decades. It is because of the strong influence that watershed landuse has on rivers that spatial conservation for rivers has to date largely focused on terrestrial protected areas. This dissertation explores the effects of land-use strategies on water quality and ecosystem functioning (Chapter 1), the effects of riverine reserve creation on food webs (Chapter 2), develops a theory for riverine reserve design (Chapter 3), and finally tests this theory within a network of riverine reserves (Chapter 4).

ISBN: 9780438082700Subjects--Topical Terms:

545788
Limnology.

Riverine Reserves: The Conservation Benefits of Spatial Protection for Rivers in the Context of Environmental Change.
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500 $a Adviser: Peter B. McIntyre.
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520 $a This dissertation explores the effects of community-initiated and enforced no-take conservation reserves in rivers of northwestern Thailand. There, like many other areas in Southeast Asia, humans have high nutritional reliance on inland fisheries, and in response to perceived declines in catches, communitites have responded by creating conservation reserves. These reserves, howerver, occur across a landscape that has also changed rapidly in past decades. It is because of the strong influence that watershed landuse has on rivers that spatial conservation for rivers has to date largely focused on terrestrial protected areas. This dissertation explores the effects of land-use strategies on water quality and ecosystem functioning (Chapter 1), the effects of riverine reserve creation on food webs (Chapter 2), develops a theory for riverine reserve design (Chapter 3), and finally tests this theory within a network of riverine reserves (Chapter 4).
520 $a I found that expansion of intensified agricultural practices in northern Thailand has increased in-stream nutrient concentrations sufficiently to shift background nutrient limitation states. Compared to rivers in low-intensity agricultural areas, which showed strict nitrogen limitation, rivers in areas with high fertilizer-intensive crop extent showed a shift towards nitrogen and phosphorus co-limitation. This likely results from broad use of nitrogen-rich fertilizers like urea throughout Thailand.
520 $a I also found community riverine reserves were highly effective at increasing fish species richness, density, and biomass relative to adjacent fished areas. The effects of harvest outside of reserves also had effects that cascaded down to benthic algae due to the alteration of fish community size structure and species composition. By surveying numerous reserves I found that attributes such as reserve size, duration of protection, and proximity to the nearest village had strong effects on the effects of reserves on species richness, density, and biomass. However, the specific reserve characteristics varied based on the outcome variable (e.g., species richness versus density). This empirical support for the success of even small riverine reserves is supported through my investigation of the underlying principles used to develop protected area design theory in other ecological realms (marine and terrestrial).
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