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The influence of fire and grazing on...

Larson, Danelle Marie.

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The influence of fire and grazing on tallgrass prairie streams and herpetofauna.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	The influence of fire and grazing on tallgrass prairie streams and herpetofauna./
作者:	Larson, Danelle Marie.
面頁冊數:	190 p.
附註:	Source: Dissertation Abstracts International, Volume: 75-11(E), Section: B.
Contained By:	Dissertation Abstracts International75-11B(E).
標題:	Environmental management. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3627746
ISBN:	9781321031805

The influence of fire and grazing on tallgrass prairie streams and herpetofauna.
Larson, Danelle Marie.

The influence of fire and grazing on tallgrass prairie streams and herpetofauna. - 190 p.

Source: Dissertation Abstracts International, Volume: 75-11(E), Section: B.

Thesis (Ph.D.)--Kansas State University, 2014.

Tallgrass prairie evolved with fire-grazer interactions. Fire and grazing are vital processes for maintaining grasslands and cattle production, and therefore will be continued as land management schemes. The effects of fire and grazers on prairie streams are understudied, but may significantly influence stream ecology.

ISBN: 9781321031805Subjects--Topical Terms:

535182
Environmental management.

The influence of fire and grazing on tallgrass prairie streams and herpetofauna.
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245 1 4 $a The influence of fire and grazing on tallgrass prairie streams and herpetofauna.
300 $a 190 p.
500 $a Source: Dissertation Abstracts International, Volume: 75-11(E), Section: B.
500 $a Adviser: Walter K. Dodds.
502 $a Thesis (Ph.D.)--Kansas State University, 2014.
520 $a Tallgrass prairie evolved with fire-grazer interactions. Fire and grazing are vital processes for maintaining grasslands and cattle production, and therefore will be continued as land management schemes. The effects of fire and grazers on prairie streams are understudied, but may significantly influence stream ecology.
520 $a This dissertation examined how prescribed burning, bison grazing, and patch-burn grazing (by cattle) influence water quality, stream biota, and riparian amphibians and reptiles at Konza Prairie, Kansas, or Osage Prairie, Missouri. Using Global Positioning System, we monitored bison and cattle distribution throughout watersheds. The immediate effects of prescribed burning were examined at both Konza and Osage Prairies. The impacts of bison on water quality were determined by using a long-term dataset from Konza Prairie and compared watersheds with and without bison. Amphibian and reptile assemblages were monitored for two years at Osage, and assemblage data were analyzed using redundancy analysis, permuted analysis of variance, and occupancy modeling. A patch-burn grazing experiment occurred for 5 years at Osage (2 years pretreatment data and 3 years of treatments) and was analyzed using a before-after, control-impact design.
520 $a Prescribed burning had minimal effects on water chemistry. At Konza Prairie, bison did not alter water quality likely because they spent negligible time (<5%) in streams. Contrarily, cattle at Osage Prairie significantly increased stream concentrations of total suspended solids, nutrients, Escherichia coli bacteria, algal biomass, and primary production. Unlike bison, cattle spent significant time (&sim;21%) in streams if allowed access to riparian zones. In watersheds with cattle excluded from streams by riparian fencing, water quality contaminant concentrations increased significantly, but not to the magnitude of unfenced streams. Amphibian abundance and richness were not different among patch types; instead, they were restricted to specific basins. However, reptiles displayed preference for certain patch-types, and had the highest abundance and richness in watersheds with fire and grazing.
520 $a These results have implications for natural resource management. Riparian fencing of cattle may be a useful practice in areas where water resource protection is the priority. However, overland flow may alter water quality in watersheds with grazers despite fencing. Land managers will need to define management objectives and accept trade-offs in water quality, amphibian and reptile habitat, and cattle production.
590 $a School code: 0100.
650 4 $a Environmental management. $3 535182
650 4 $a Zoology. $3 518878
650 4 $a Ecology. $3 516476
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710 2 $a Kansas State University. $b Department of Biology. $3 3180692
773 0 $t Dissertation Abstracts International $g 75-11B(E).
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791 $a Ph.D.
792 $a 2014
793 $a English
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