Evaluation of an expandable, breakaway radiocollar for white-tailed deer fawns

Duane R Diefenbach, Christopher O. Kochanny, Justin K. Vreeland, Bret D. Wallingford

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

We evaluated an expandable, breakaway VHF radiocollar design for use on white-tailed deer (Odocoileus virginianus) from birth to about 1 year of age. A similar collar design has been used on caribou (Rangifer tarandus), but we found that the collar did not expand quickly enough to accommodate increase in neck circumference of fawns during the first 2 months of life. Consequently, we modified the stitching pattern so that the first expansion fold opened faster. We monitored performance of this modification on free-ranging and captive fawns. Also, we collected data on neck growth in fawns to document design requirements of expandable collars for white-tailed deer. Mean neck circumference at ≤14 days of age of free-ranging fawns in Pennsylvania was 17.8 cm (SD=1.67, n=62) for males and 17.3 cm (SD=1.50, n=52) for females. Based on measurements of captive fawns, neck circumference increased 8.8 cm from birth to August, 2.5 cm from August to October, and 2.6 cm from October to March. Observations of captive fawns fitted with dummy radiocollars indicated that collars expanded when needed and caused no apparent discomfort to fawns. We detected no problems with use of 86 collars on 113 free-ranging fawns for >270 days and recovered radiocollars expanded as designed. The elastic collar material failed on 3 collars (3%) after 142, 207, and 226 days on fawns, and 1-5 radiocollars (≤4%) were cast by fawns. Our modification to this radiocollar design reduced fawn discomfort or suffering, allowing researchers to better comply with principles of the Animal Welfare Act.

Original languageEnglish (US)
Pages (from-to)756-761
Number of pages6
JournalWildlife Society Bulletin
Volume31
Issue number3
StatePublished - Sep 1 2003

Fingerprint

radio frequency identification
fawns
Odocoileus virginianus
deer
collars
neck
animal welfare
fold
evaluation
Rangifer tarandus caribou
researchers

All Science Journal Classification (ASJC) codes

  • Nature and Landscape Conservation

Cite this

Diefenbach, D. R., Kochanny, C. O., Vreeland, J. K., & Wallingford, B. D. (2003). Evaluation of an expandable, breakaway radiocollar for white-tailed deer fawns. Wildlife Society Bulletin, 31(3), 756-761.
Diefenbach, Duane R ; Kochanny, Christopher O. ; Vreeland, Justin K. ; Wallingford, Bret D. / Evaluation of an expandable, breakaway radiocollar for white-tailed deer fawns. In: Wildlife Society Bulletin. 2003 ; Vol. 31, No. 3. pp. 756-761.
@article{48ea4ed49f4f42b69f60173e20bf9ba8,
title = "Evaluation of an expandable, breakaway radiocollar for white-tailed deer fawns",
abstract = "We evaluated an expandable, breakaway VHF radiocollar design for use on white-tailed deer (Odocoileus virginianus) from birth to about 1 year of age. A similar collar design has been used on caribou (Rangifer tarandus), but we found that the collar did not expand quickly enough to accommodate increase in neck circumference of fawns during the first 2 months of life. Consequently, we modified the stitching pattern so that the first expansion fold opened faster. We monitored performance of this modification on free-ranging and captive fawns. Also, we collected data on neck growth in fawns to document design requirements of expandable collars for white-tailed deer. Mean neck circumference at ≤14 days of age of free-ranging fawns in Pennsylvania was 17.8 cm (SD=1.67, n=62) for males and 17.3 cm (SD=1.50, n=52) for females. Based on measurements of captive fawns, neck circumference increased 8.8 cm from birth to August, 2.5 cm from August to October, and 2.6 cm from October to March. Observations of captive fawns fitted with dummy radiocollars indicated that collars expanded when needed and caused no apparent discomfort to fawns. We detected no problems with use of 86 collars on 113 free-ranging fawns for >270 days and recovered radiocollars expanded as designed. The elastic collar material failed on 3 collars (3{\%}) after 142, 207, and 226 days on fawns, and 1-5 radiocollars (≤4{\%}) were cast by fawns. Our modification to this radiocollar design reduced fawn discomfort or suffering, allowing researchers to better comply with principles of the Animal Welfare Act.",
author = "Diefenbach, {Duane R} and Kochanny, {Christopher O.} and Vreeland, {Justin K.} and Wallingford, {Bret D.}",
year = "2003",
month = "9",
day = "1",
language = "English (US)",
volume = "31",
pages = "756--761",
journal = "Wildlife Society Bulletin",
issn = "0091-7648",
publisher = "Wiley-Blackwell",
number = "3",

}

Diefenbach, DR, Kochanny, CO, Vreeland, JK & Wallingford, BD 2003, 'Evaluation of an expandable, breakaway radiocollar for white-tailed deer fawns', Wildlife Society Bulletin, vol. 31, no. 3, pp. 756-761.

Evaluation of an expandable, breakaway radiocollar for white-tailed deer fawns. / Diefenbach, Duane R; Kochanny, Christopher O.; Vreeland, Justin K.; Wallingford, Bret D.

In: Wildlife Society Bulletin, Vol. 31, No. 3, 01.09.2003, p. 756-761.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Evaluation of an expandable, breakaway radiocollar for white-tailed deer fawns

AU - Diefenbach, Duane R

AU - Kochanny, Christopher O.

AU - Vreeland, Justin K.

AU - Wallingford, Bret D.

PY - 2003/9/1

Y1 - 2003/9/1

N2 - We evaluated an expandable, breakaway VHF radiocollar design for use on white-tailed deer (Odocoileus virginianus) from birth to about 1 year of age. A similar collar design has been used on caribou (Rangifer tarandus), but we found that the collar did not expand quickly enough to accommodate increase in neck circumference of fawns during the first 2 months of life. Consequently, we modified the stitching pattern so that the first expansion fold opened faster. We monitored performance of this modification on free-ranging and captive fawns. Also, we collected data on neck growth in fawns to document design requirements of expandable collars for white-tailed deer. Mean neck circumference at ≤14 days of age of free-ranging fawns in Pennsylvania was 17.8 cm (SD=1.67, n=62) for males and 17.3 cm (SD=1.50, n=52) for females. Based on measurements of captive fawns, neck circumference increased 8.8 cm from birth to August, 2.5 cm from August to October, and 2.6 cm from October to March. Observations of captive fawns fitted with dummy radiocollars indicated that collars expanded when needed and caused no apparent discomfort to fawns. We detected no problems with use of 86 collars on 113 free-ranging fawns for >270 days and recovered radiocollars expanded as designed. The elastic collar material failed on 3 collars (3%) after 142, 207, and 226 days on fawns, and 1-5 radiocollars (≤4%) were cast by fawns. Our modification to this radiocollar design reduced fawn discomfort or suffering, allowing researchers to better comply with principles of the Animal Welfare Act.

AB - We evaluated an expandable, breakaway VHF radiocollar design for use on white-tailed deer (Odocoileus virginianus) from birth to about 1 year of age. A similar collar design has been used on caribou (Rangifer tarandus), but we found that the collar did not expand quickly enough to accommodate increase in neck circumference of fawns during the first 2 months of life. Consequently, we modified the stitching pattern so that the first expansion fold opened faster. We monitored performance of this modification on free-ranging and captive fawns. Also, we collected data on neck growth in fawns to document design requirements of expandable collars for white-tailed deer. Mean neck circumference at ≤14 days of age of free-ranging fawns in Pennsylvania was 17.8 cm (SD=1.67, n=62) for males and 17.3 cm (SD=1.50, n=52) for females. Based on measurements of captive fawns, neck circumference increased 8.8 cm from birth to August, 2.5 cm from August to October, and 2.6 cm from October to March. Observations of captive fawns fitted with dummy radiocollars indicated that collars expanded when needed and caused no apparent discomfort to fawns. We detected no problems with use of 86 collars on 113 free-ranging fawns for >270 days and recovered radiocollars expanded as designed. The elastic collar material failed on 3 collars (3%) after 142, 207, and 226 days on fawns, and 1-5 radiocollars (≤4%) were cast by fawns. Our modification to this radiocollar design reduced fawn discomfort or suffering, allowing researchers to better comply with principles of the Animal Welfare Act.

UR - http://www.scopus.com/inward/record.url?scp=0142153951&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0142153951&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0142153951

VL - 31

SP - 756

EP - 761

JO - Wildlife Society Bulletin

JF - Wildlife Society Bulletin

SN - 0091-7648

IS - 3

ER -

Diefenbach DR, Kochanny CO, Vreeland JK, Wallingford BD. Evaluation of an expandable, breakaway radiocollar for white-tailed deer fawns. Wildlife Society Bulletin. 2003 Sep 1;31(3):756-761.