scholarly journals Effects of Supplemental Food on Population Dynamics of Cotton Rats, Sigmodon Hispidus

Ecology ◽  
1995 ◽  
Vol 76 (3) ◽  
pp. 814-826 ◽  
Author(s):  
Terry J. Doonan ◽  
Norman A. Slade
Keyword(s):  
Population Dynamics ◽  
Sigmodon Hispidus ◽  
Supplemental Food ◽  
Cotton Rats

Population dynamics of hispid cotton rats (Sigmodon hispidus) across a nitrogen-amended landscape

2003 ◽  
Vol 81 (6) ◽  
pp. 994-1003 ◽  
Author(s):  
Jay E Clark ◽  
Eric C Hellgren ◽  
Eric E Jorgensen ◽  
Susan J Tunnell ◽  
David M Engle ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Reproductive Success ◽  
Survival Rates ◽  
Canopy Cover ◽  
Sigmodon Hispidus ◽  
Old Field ◽  
Higher Plant ◽  
Population Growth Rates ◽  
Low Level ◽  
Cotton Rats

We conducted a mark–recapture experiment to examine the population dynamics of hispid cotton rats (Sigmodon hispidus) in response to low-level nitrogen amendments (16.4 kg nitrogen/ha per year) and exclosure fencing in an old-field grassland. The experimental design consisted of sixteen 0.16-ha plots with 4 replicates of each treatment combination. We predicted that densities, reproductive success, movement probabilities, and survival rates of cotton rats would be greater on nitrogen-amended plots because of greater aboveground biomass and canopy cover. Population densities of cotton rats tended to be highest on fenced nitrogen plots, but densities on unfenced nitrogen plots were similar to those on control and fenced plots. We observed no distinct patterns in survival rates, reproductive success, or movement probabilities with regard to nitrogen treatments. However, survival rates and reproductive success tended to be higher for cotton rats on fenced plots than for those on unfenced plots and this was likely attributable to decreased predation on fenced plots. As low-level nitrogen amendments continue to be applied, we predict that survival, reproduction, and population-growth rates of cotton rats on control plots, especially fenced plots with no nitrogen amendment, will eventually exceed those on nitrogen-amended plots as a result of higher plant-species diversity, greater food availability, and better quality cover.

Population Dynamics of Cotton Rats (Sigmodon hispidus) Inhabiting Abandoned Petroleum Landfarms in Oklahoma, USA

Ecotoxicology ◽  
2005 ◽  
Vol 15 (1) ◽  
pp. 19-30
Author(s):  
James A. Wilson ◽  
Robert L. Lochmiller ◽  
David M. Janz
Keyword(s):  
Population Dynamics ◽  
Sigmodon Hispidus ◽  
Cotton Rats

scholarly journals EFFECTS OF SUPPLEMENTAL FOOD ON MOVEMENTS OF COTTON RATS (SIGMODON HISPIDUS) IN NORTHEASTERN KANSAS

2004 ◽  
Vol 85 (6) ◽  
pp. 1102-1105 ◽  
Author(s):  
Melissa Sulok ◽  
Norman A. Slade ◽  
Terry J. Doonan
Keyword(s):  
Sigmodon Hispidus ◽  
Supplemental Food ◽  
Cotton Rats

scholarly journals Resistance of Cotton Rats, Sigmodon hispidus, to Primary Infection by Nippostrongylus brasiliensis

2002 ◽  
Vol 64 (5) ◽  
pp. 423-426 ◽  
Author(s):  
Hendra WIBAWA ◽  
Deni NOVIANA ◽  
Kimiyuki TSUCHIYA ◽  
Fadjar SATRIJA ◽  
Yoichiro HORII
Keyword(s):  
Primary Infection ◽  
Nippostrongylus Brasiliensis ◽  
Sigmodon Hispidus ◽  
Cotton Rats

Cotton rats ( Sigmodon hispidus ) with a high prevalence of hydrocephalus without clinical symptoms

2021 ◽  
Author(s):  
Daisuke Kondoh ◽  
Teppei Nakamura ◽  
Erika Tsuji ◽  
Marina Hosotani ◽  
Osamu Ichii ◽  
...  
Keyword(s):  
Clinical Symptoms ◽  
Sigmodon Hispidus ◽  
High Prevalence ◽  
Cotton Rats

Sensitivity of Wild Cotton Rats ( Sigmodon hispidus ) to the Immunotoxic Effects of Low-Level Arsenic Exposure

1998 ◽  
Vol 34 (3) ◽  
pp. 289-296 ◽  
Author(s):  
M. Savabieasfahani ◽  
R. L. Lochmiller ◽  
D. P. Rafferty ◽  
J. A. Sinclair
Keyword(s):  
Arsenic Exposure ◽  
Sigmodon Hispidus ◽  
Low Level ◽  
Wild Cotton ◽  
Cotton Rats
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