scholarly journals Distinct ion transport in the marsh rice rat ( Oryzomys palustris ) airway

2019 ◽  
Vol 33 (S1) ◽  
Author(s):  
Leah Renee Reznikov ◽  
Shin‐Ping Kuan ◽  
Yan‐Shin J Liao ◽  
Katelyn Davis ◽  
Jonathan Messer ◽  
...  
Keyword(s):  
Ion Transport ◽  
Marsh Rice Rat ◽  
Oryzomys Palustris

scholarly journals Socio-ecology of the marsh rice rat (Oryzomys palustris) and the spatio-temporal distribution of Bayou virus in coastal Texas

2013 ◽  
Vol 7 (2) ◽  
pp. 289 ◽  
Author(s):  
Tyla S. Holsomback ◽  
Christopher J. Van Nice ◽  
Rachel N. Clark ◽  
Nancy E. McIntyre ◽  
Alisa A. Abuzeineh ◽  
...  
Keyword(s):  
Temporal Distribution ◽  
Spatio Temporal ◽  
Marsh Rice Rat ◽  
Oryzomys Palustris

scholarly journals Marsh Rice Rat, Oryzomys palustris, Predation on Forster's Tern, Sterna forsteri, Eggs in Coastal North Carolina

2003 ◽  
Vol 117 (4) ◽  
pp. 654
Author(s):  
John H. Brunjes ◽  
W. David Webster
Keyword(s):  
North Carolina ◽  
Stomach Contents ◽  
Nesting Success ◽  
Small Islands ◽  
Island Area ◽  
Harbor Island ◽  
Cedar Island ◽  
Marsh Rice Rat ◽  
Oryzomys Palustris

Nesting success of Forster’s Terns (Sterna forsteri) was examined on two small islands in the Cedar Island area of North Carolina. Forster’s Terns laid an average of 2.1 eggs per nest (n = 50) on Chainshot Island and 2.1 eggs per nest (n = 43) on Harbor Island in clutches that consisted of 1 to 3 eggs. On Chainshot Island every egg (n = 107) was lost to predation. On Harbor Island, 72 of 92 eggs were preyed upon. A trapping program, initiated on both islands, yielded 32 Marsh Rice Rats (Oryzomys palustris). Stomach contents of 23 rats were inspected, with 92.3% from Chainshot Island and 70% of the stomachs from Harbor Island containing yolk and feathers of Forster’s Terns.

Effects of age and photoperiod on reproduction and the spleen in the marsh rice rat (Oryzomys palustris)

2001 ◽  
Vol 280 (4) ◽  
pp. R1249-R1255 ◽  
Author(s):  
Kent E. Edmonds ◽  
Milton H. Stetson
Keyword(s):  
Adult Male ◽  
Reproductive Organ ◽  
Spleen Weight ◽  
Adult Males ◽  
Young Females ◽  
Reproductive Response ◽  
Body Weights ◽  
Marsh Rice Rat ◽  
Oryzomys Palustris ◽  
Older Males

To examine the interactions between age and photoperiod on reproduction and spleen weights, we exposed adult male and female rice rats of various ages to photoperiods of 16:8-h light-dark photoperiods (16L:8D) or 12L:12D. After 10 wk, animals were killed and the following data were recorded: weights of testes, seminal vesicles, uterus, ovaries, body, and spleen and, in addition, vaginal patency. Young adult males displayed a greater degree of testicular and seminal vesicle regression in short photoperiods than did older males; the testes of most older males did not regress in response to short photoperiods. Spleen weight was unresponsive to short photoperiods in all males, but was affected by age. Females, however, exhibited reproductive organ regression and decreased vaginal patency in response to short photoperiods at all ages examined. Body weights were affected by photoperiod in young females, and, as in males, photoperiod had no effect on spleen weights. These data suggest that the reproductive response to photoperiod in adult male rice rats declines with age, whereas in adult females it does not.

scholarly journals Attenuated Amiloride-Sensitive Current and Augmented Calcium-Activated Chloride Current in Marsh Rice Rat (Oryzomys palustris) Airways

iScience ◽  
2019 ◽  
Vol 19 ◽  
pp. 737-748 ◽  
Author(s):  
Shin-Ping Kuan ◽  
Yan-Shin J. Liao ◽  
Katelyn M. Davis ◽  
Jonathan G. Messer ◽  
Jasenka Zubcevic ◽  
...  
Keyword(s):  
Chloride Current ◽  
Marsh Rice Rat ◽  
Oryzomys Palustris

RESPONSE OF MARSH RICE RAT (ORYZOMYS PALUSTRIS) TO INUNDATION OF HABITAT

2007 ◽  
Vol 52 (1) ◽  
pp. 75-78 ◽  
Author(s):  
Alisa A. Abuzeineh ◽  
Robert D. Owen ◽  
Nancy E. McIntyre ◽  
Carl W. Dick ◽  
Richard E. Strauss ◽  
...  
Keyword(s):  
Marsh Rice Rat ◽  
Oryzomys Palustris

scholarly journals Attenuated amiloride-sensitive current and augmented calcium-activated chloride current in marsh rice rat (Oryzomys palustris) airways

2019 ◽  
Author(s):  
Shin-Ping Kuan ◽  
Yan-Shin J. Liao ◽  
Katelyn M. Davis ◽  
Jonathan G. Messer ◽  
Jasenka Zubcevic ◽  
...  
Keyword(s):  
Mrna Expression ◽  
Salt Marshes ◽  
Sea Salt ◽  
Airway Surface Liquid ◽  
Sea Salt Aerosols ◽  
Surface Liquid ◽  
Prolonged Heat ◽  
Marsh Rice Rat ◽  
Oryzomys Palustris ◽  
Epithelial Sodium Channel Enac

SummaryProlonged heat and sea salt aerosols pose a challenge for the mammalian airway, placing the protective airway surface liquid (ASL) at risk for desiccation. Thus, mammals inhabiting salt marshes might have acquired adaptations for ASL regulation. We studied the airways of the rice rat, a rodent that inhabits salt marshes. We discovered negligible Na+ transport through the epithelial sodium channel (ENaC). In contrast, carbachol induced a large Cl− secretory current that was blocked by the calcium-activated chloride channel (CaCC) inhibitor CaCCinh-A01. Decreased mRNA expression of α, β, and γ ENaC, and increased mRNA expression of the CaCC transmembrane member 16A distinguished the rice rat airway. Rice rat airway cultures also secreted fluid in response to carbachol and displayed an exaggerated expansion of the ASL volume when challenged with 3.5% NaCl. These data suggest that the rice rat airway might possess unique ion transport adaptations to facilitate survival in the salt marsh environment.

scholarly journals Habitat associations of the marsh rice rat (Oryzomys palustris) in freshwater wetlands of southern Illinois

2011 ◽  
Vol 92 (3) ◽  
pp. 552-560 ◽  
Author(s):  
Bryan W. Eubanks ◽  
Eric C. Hellgren ◽  
Jack R. Nawrot ◽  
Robert D. Bluett
Keyword(s):  
Habitat Associations ◽  
Freshwater Wetlands ◽  
Southern Illinois ◽  
Marsh Rice Rat ◽  
Oryzomys Palustris
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