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

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.

Noise stress and in vitro adrenocortical responsiveness to ACTH in wild cotton rats, Sigmodon hispidus

1978 ◽  
Vol 16 (1-3) ◽  
pp. 29-37 ◽  
Author(s):  
J.F. Pritchett ◽  
M.L. Browder ◽  
R.S. Caldwell ◽  
J.L. Sartin
Keyword(s):  
Sigmodon Hispidus ◽  
Noise Stress ◽  
Wild Cotton ◽  
Cotton Rats

Lymphoproliferative Responses of Splenocytes from Wild Cotton Rats ( Sigmodon hispidus ) Following Acute Exposure to Aroclor 1254

2003 ◽  
Vol 70 (1) ◽  
pp. 97-105 ◽  
Author(s):  
P. N. Smith ◽  
R. L. Lochmiller ◽  
C. W. Qualls, Jr. ◽  
J. W. Lish ◽  
S. T. McMurry
Keyword(s):  
Acute Exposure ◽  
Sigmodon Hispidus ◽  
Aroclor 1254 ◽  
Wild Cotton ◽  
Cotton Rats

Efficacy of histopathology in detecting petrochemical-induced toxicity in wild cotton rats (Sigmodon hispidus)

2001 ◽  
Vol 113 (3) ◽  
pp. 323-329 ◽  
Author(s):  
S Kim ◽  
R.L Lochmiller ◽  
E.L Stair ◽  
J.W Lish ◽  
D.P Rafferty ◽  
...  
Keyword(s):  
Sigmodon Hispidus ◽  
Wild Cotton ◽  
Cotton Rats

scholarly journals Essential concepts for interpreting the dose-response of low-level arsenic exposure in epidemiological studies

Toxicology ◽  
2021 ◽  
Vol 457 ◽  
pp. 152801
Author(s):  
Joyce S. Tsuji ◽  
Kristin P. Lennox ◽  
Heather N. Watson ◽  
Ellen T. Chang
Keyword(s):  
Dose Response ◽  
Arsenic Exposure ◽  
Epidemiological Studies ◽  
Low Level

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
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