Structural Organization of Great Plains Stream 1xbet online games login Assemblages: Implications for Sampling and Conservation
Investigators: 
Jesse 1xbet online games login , M.S. student
Dr. Craig 1xbet online games login
Project Supervisor:
Dr. Craig 1xbet online games login
Funding:
Turner Enterprises, Inc.
Cooperators:
1xbet online games login Department of Wildlife and Parks
1xbet online games login Game and Parks Commission
Location:
Nebraska and 1xbet online games login
Completion:
May 2007
Objectives:
Determine the increment of 1xbet online games login length (10, 20, 40, and 60 MSWs) and number of reaches needed to collect precise (75, 90, and 100%) estimates of segment species richness.
Identify the physical parameters and/or community structure that best explain the variation in 1xbet online games login effort among streams.
Determine the relationship of 1xbet online games login community structure in response to environmental variation in two regions of the Great Plains with limited disturbance
Progress and Results:
Stream 1xbet online games login assemblages were investigated in Nebraska and Kansas to determine the effects of habitat and sampling methodologies on the community structure and abundance of prairie stream fishes of the Great Plains. The number of reaches (<1 km) required to estimate segment (20-30 km) species richness decreased with increased reach length (10, 20, 40, or 60 mean stream width [MSW]) whereas total sampling effort decreased with more and shorter reaches. Only after all 10 reaches was total species richness obtained with 40 to 60 MSW. A greater number of reaches was needed to detect 90% of species richness and 25% changes in relative abundance when community similarity and habitat heterogeneity was lower. Our results suggest homogeneous stream segments require more reaches to characterize 1xbet online games login community structure and monitor trends in 1xbet online games login abundance and a greater number of shorter reaches may be better than fewer longer (e.g. 40 or larger MSW) reaches. Effects of local environmental influences on the structure of 1xbet online games login assemblages were evaluated from 159 sites in two regions of the Great Plains with limited anthropogenic disturbance. These least disturbed regions offered an opportunity to evaluate the structure and natural variation of streams and 1xbet online games login assemblages within the Great Plains. Similar environmental factors structured streams and 1xbet online games login assemblages, despite differences in environmental conditions and species composition between regions. Variance in 1xbet online games login assemblages was best explained by stream size and habitat features linked with stream size.
Products:
Reports:
Abstracts:
Presentations:
Publications:
Fischer, J. R., and C. P. Paukert. 2008. Historical and current environmental influences of an endemic Great Plains 1xbet online games login . American Midland Naturalist 159:364-377.
Fischer, J. R. 2007. Structural organization of Great Plains stream 1xbet online games login assemblages: implications for sampling and conservation. M.S. Thesis, Kansas State University.
Fischer, J. R., and C. P. Paukert. 2007. Spatial scale of stream 1xbet online games login assemblages and abundance estimates: effects of sampling effort, community structure, and habitat heterogeneity. American Fisheries Society Annual Meeting, San Francisco, CA.
Fischer, J., and C. Paukert. 2007. Sampling effort required to estimate species richness in wadeable Great Plains streams with a towed electrofishing. 1xbet online games login , Nebraska, Iowa Tri-State American Fisheries Society Meeting, Council Bluffs, IA.
Fischer, J., and C. Paukert. 2007. Historical and current environmental influences on an endemic great plains 1xbet online games login . Kansas, Nebraska, Iowa Tri-State American Fisheries Society Meeting, Council Bluffs, IA.
Fischer, J. R., and C. P. Paukert. 2006. Environmental influences structuring Great Plains stream 1xbet online games login assemblages. 67th Midwest 1xbet online games login and Wildlife Conference, Omaha, NE. Fischer, J. R., and C. P. Paukert. 2006. Historical and environmental influence on an endemic Great Plains 1xbet online games login . 67th Midwest 1xbet online games login and Wildlife Conference. Omaha, NE.
Fischer, J., and C. P. Paukert. 2006. Factors influencing lotic 1xbet online games login -habitat relationships in the Great Plains. American Fisheries Society Annual Meeting, Lake Placid, NY.
Fischer, J., and C. P. Paukert. Habitat use of stream fishes in South Central 1xbet online games login . 1xbet online games login State University Biology Graduate Student Research Forum, Manhattan, KS.
Fischer, J., and C. P. Paukert. 2006. Environmental influences of stream 1xbet online games login in the Nebraska Sandhills. Nebraska Chapter of the AFS Annual Meeting, Gretna, NE.
Brinkley, P., J. Fischer, and C. P. Paukert. 2006. Effect of fixative on total length of small-bodied stream 1xbet online games login . 31st Kansas Chapter of the American Fisheries Society Annual Meeting, Hays, KS.
Fischer, J., and C. P. Paukert. 2006. 1xbet online games login habitat relationships in South Central Kansas. 31st Kansas Chapter of the American Fisheries Society Annual Meeting, Hays, KS.
