Catherine Langtimm, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 43
The U.S. National Amphibian Research and Monitoring Initiative and the role of protected areas
In response to concerns about the worldwide status of amphibians (Alford and Richards 1999; Bury 1999; Daszak et al. 1999; Houlahan et al. 2000), Congress in Fiscal Year 2000 provided initial support to agencies of the U.S. Department of the Interior for research and monitoring of amphibians. Most funds came to the U.S. Geological Survey (USGS), but additional funds for the U.S. Fish and Wildlife
Authors
Russell James Hall, Catherine A. Langtimm
Beaded-chain collars: A new method to radiotag kangaroo rats for short-term studies
To study burrow use by small mammals, we needed to develop a simple, non-invasive radiotag for the endangered giant kangaroo rat (Dipodomys ingens). We designed and tested a radiocollar made of beaded-chain on 4 captive Heermann's kangaroo rats (D. heermanii). Attachment of the collar required no anesthesia, the collar was easily fitted in 1-2 minutes, and it caused minimal stress to the animals.
Authors
M.B. Harker, G. B. Rathbun, C.A. Langtimm
Beaded-chain collars: a new method to radiotag kangaroo rats for short-term studies
No abstract available.
Authors
M. Harker, G. B. Rathbun, C.A. Langtimm
Estimates of annual survival probabilities for adult Florida manatees (Trichechus manatus latirostris)
The population dynamics of large, long-lived mammals are particularly sensitive to changes in adult survival. Understanding factors affecting survival patterns is therefore critical for developing and testing theories of population dynamics and for developing management strategies aimed at preventing declines or extinction in such taxa. Few studies have used modern analytical approaches for analyz
Authors
C.A. Langtimm, T. J. O'Shea, R. Pradel, C.A. Beck
Natural history notes: Pituophis melanoleucus catenifer (Pacific gopher snake). Prey
No abstract available.
Authors
M.R. Jennings, G. B. Rathbun, C.A. Langtimm
Estimates of abundance of box turtles (Terrapene carolina bauri) on a Florida island
Abstract not supplied at this time
Authors
C.A. Langtimm, C. K. Dodd, R. Franz
Estimation of survival of adult Florida manatees in the Crystal River, at Blue Spring, and on the Atlantic Coast
We applied Cormack-Jolly-Seber open population models to manatee (Trichechus manatus latirostris) photo-identification databases to estimate adult survival probabilities. The computer programs JOLLY and RECAPCO were used to estimate survival of 677 individuals in three study areas: Crystal River (winters 1977-78 to 1990-91), Blue Spring (winters 1977-78 to 1990-91), and the Atlantic Coast (winters
Authors
Thomas J. O'Shea, Catherine A. Langtimm
Science and Products
Filter Total Items: 43
The U.S. National Amphibian Research and Monitoring Initiative and the role of protected areas
In response to concerns about the worldwide status of amphibians (Alford and Richards 1999; Bury 1999; Daszak et al. 1999; Houlahan et al. 2000), Congress in Fiscal Year 2000 provided initial support to agencies of the U.S. Department of the Interior for research and monitoring of amphibians. Most funds came to the U.S. Geological Survey (USGS), but additional funds for the U.S. Fish and Wildlife
Authors
Russell James Hall, Catherine A. Langtimm
Beaded-chain collars: A new method to radiotag kangaroo rats for short-term studies
To study burrow use by small mammals, we needed to develop a simple, non-invasive radiotag for the endangered giant kangaroo rat (Dipodomys ingens). We designed and tested a radiocollar made of beaded-chain on 4 captive Heermann's kangaroo rats (D. heermanii). Attachment of the collar required no anesthesia, the collar was easily fitted in 1-2 minutes, and it caused minimal stress to the animals.
Authors
M.B. Harker, G. B. Rathbun, C.A. Langtimm
Beaded-chain collars: a new method to radiotag kangaroo rats for short-term studies
No abstract available.
Authors
M. Harker, G. B. Rathbun, C.A. Langtimm
Estimates of annual survival probabilities for adult Florida manatees (Trichechus manatus latirostris)
The population dynamics of large, long-lived mammals are particularly sensitive to changes in adult survival. Understanding factors affecting survival patterns is therefore critical for developing and testing theories of population dynamics and for developing management strategies aimed at preventing declines or extinction in such taxa. Few studies have used modern analytical approaches for analyz
Authors
C.A. Langtimm, T. J. O'Shea, R. Pradel, C.A. Beck
Natural history notes: Pituophis melanoleucus catenifer (Pacific gopher snake). Prey
No abstract available.
Authors
M.R. Jennings, G. B. Rathbun, C.A. Langtimm
Estimates of abundance of box turtles (Terrapene carolina bauri) on a Florida island
Abstract not supplied at this time
Authors
C.A. Langtimm, C. K. Dodd, R. Franz
Estimation of survival of adult Florida manatees in the Crystal River, at Blue Spring, and on the Atlantic Coast
We applied Cormack-Jolly-Seber open population models to manatee (Trichechus manatus latirostris) photo-identification databases to estimate adult survival probabilities. The computer programs JOLLY and RECAPCO were used to estimate survival of 677 individuals in three study areas: Crystal River (winters 1977-78 to 1990-91), Blue Spring (winters 1977-78 to 1990-91), and the Atlantic Coast (winters
Authors
Thomas J. O'Shea, Catherine A. Langtimm