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Full-Text Articles in Life Sciences
Evaluation Of Habitat Enhancement Structure Use By Spotted Bass, Stanley L. Proboszcz, Christopher S. Guy
Evaluation Of Habitat Enhancement Structure Use By Spotted Bass, Stanley L. Proboszcz, Christopher S. Guy
The Prairie Naturalist
Habitat enhancement is a common and effective method used to positively influence fish populations. However, there is a paucity of speciesspecific evaluations of stream habitat enhancement structures for warmwater fishes. We evaluated use of half-log, rootwad enhancement structure, and simulated undercut bank (LUNKERS) by adult and juvenile spotted bass (Micropterus punctulatus) in natural and experimental streams. Enhancement structures were installed in Otter Creek, Kansas. Adult spotted bass use of natural and enhancement structure was documented weekly during summer and fall of 2001 and 2002 with radiotelemetry. Mean total length (TL) of adult fish was 292 mm (SE = …
Artificial Burrows And The Deer Mouse: Do Number Of Entrances Influence Use?, Glennis A. Kaufman, Donald W. Kaufman
Artificial Burrows And The Deer Mouse: Do Number Of Entrances Influence Use?, Glennis A. Kaufman, Donald W. Kaufman
The Prairie Naturalist
We examined use of artificial burrows by the deer mouse (Peromyscus maniculatus) in mixed grass prairie in north central Kansas. We predicted differential use of burrows, such that the deer mouse would prefer two entrance burrows in non-winter months when predatory snakes were active, but prefer one entrance burrows in winter when cold, windy conditions existed. We installed 20 pairs of artificial burrows (one single entrance and one double entrance) in summer 1988. We examined these burrows on seven dates from autumn 1988 to autumn 1989. All mice (n = 70) used two entrance burrows at least …
Brood Break-Up And Juvenile Dispersal Of Lesser Prairie-Chicken In Kansas, James C. Pitman, Brent E. Jamison, Christian A. Hagen, Robert J. Robel, Roger D. Applegate
Brood Break-Up And Juvenile Dispersal Of Lesser Prairie-Chicken In Kansas, James C. Pitman, Brent E. Jamison, Christian A. Hagen, Robert J. Robel, Roger D. Applegate
The Prairie Naturalist
Natal dispersal is critical for genetic interchange between subpopulations of birds and little is known about the timing and extent of lesser prairiechicken (Tympanuchus pallidicinctus) dispersal movements. We monitored movements of 51 transmitter-equipped female lesser prairie-chicken known to have hatched a nest. Average minimum daily brood movements differed (t = -2.94, df = 829, P < 0.01) between the early (273 m; 0 to 14 days post-hatch) and late (312 m; 15 to 60 days post-hatch) brood rearing periods. We captured 71 juvenile lesser prairie-chicken from 10 broods at 3 to 11 days post-hatch and marked them with passive integrated transponder (PIT) tags. We subsequently captured 41 chicks from 20 different broods and fitted them with necklace-style transmitters. Transmitter- equipped brood hens and individual chicks were monitored daily and the average date of brood break-up was September 13 (85 to 128 days post-hatch). Both males and females exhibited bimodal dispersal movements in the fall and spring. Autumn dispersal movements peaked between late October and early November for both sexes. Spring dispersal movement of males peaked during late February. Female dispersal movements in the spring peaked in late March and were much more extensive than fall dispersal movements. Natal dispersal distance for all marked males averaged 1.4 km (SE= 0.2, n = 9). The approximate dispersal distances of three transmitter-equipped females ranged from 1.5 to 26.3 km. Because of greater dispersal distances, females will contribute more to genetic exchanges between fragmented subpopulations. To ensure genetic connectivity, we recommend that a distance of less …
Cost Of Gain Comparison Between Cattle Finished At Opportunities Farm In South Dakota And Cattle Finished In Kansas, Erik Loe, Robbi Pritchard, Matt Loewe
Cost Of Gain Comparison Between Cattle Finished At Opportunities Farm In South Dakota And Cattle Finished In Kansas, Erik Loe, Robbi Pritchard, Matt Loewe
South Dakota Beef Report, 2006
Cost of gain is an important factor in determining the profit or loss of feeder cattle. For comparison of cost of gain between cattle finished in Southeast South Dakota and cattle finished in Southwest Kansas closeouts of cattle fed at the Opportunities Farm near Lennox, SD were compared with information published by Kansas State University in the monthly Focus on Feedlots. Cattle feeders in the Midwest, including South Dakota, are competitive with cattle feeders in other regions of the United States due to this regions lower ration costs and cost of gain.