NDLI: Correlates of body measurements and age in Eurasian beaver from Norway

Content Provider	Springer Nature Link
Author	Rosell, Frank Zedrosser, Andreas Parker, Howard
Copyright Year	2009
Abstract	Accurate determination of age is essential for many ecological studies. Though counts of cementum annuli zones in teeth usually provide the most accurate measure of age in mammals, the technique is technically demanding, highly invasive and expensive. Consequently, ecologists and archaeologists are constantly seeking alternative methods of accurate age determination. In this study, we correlated the age of Eurasian beaver (Castor fiber) with skull length and width, body length and mass, hind foot length, tail width and length and an index of tail size to determine if these measurements were accurate predictors of age. The relationships between all measurements and age were curvilinear, making them particularly unreliable for older age classes. Skull length and width were the best predictors of age, but only individuals ≤2 years could be assigned to their correct age class with a probability >50%. However, when allowing for an error of ±1 year, the success rate of both skull measurements increased to ≥60% for females up to 4 years of age and for males up to 3 years of age. We concluded that body measurements are unsuitable predictors of accurate individual age in beavers but that especially skull length and skull width may be useful if separation into age classes such as juvenile, subadult and adult is sufficient.
Starting Page	43
Ending Page	48
Page Count	6
File Format	PDF
ISSN	16124642
Journal	European Journal of Wildlife Research
Volume Number	56
Issue Number	1
e-ISSN	14390574
Language	English
Publisher	Springer-Verlag
Publisher Date	2009-06-16
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Eurasian beaver Skull and body measurements Age determination Norway Animal Ecology Zoology
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics Management, Monitoring, Policy and Law Nature and Landscape Conservation

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

First set of microsatellite markers for genetic characterization of the Eurasian beaver (Castor fiber) based on tissue and hair samples

First set of microsatellite markers for genetic characterization of the Eurasian beaver () based on tissue and hair samples

Serum chemistry and haematology for female Eurasian lynx (Lynx lynx)

Largest fungal fruit body from India

Quota hunting of Eurasian lynx in Norway: patterns of hunter selection, hunter efficiency and monitoring accuracy

Ecological correlates of a tick-borne disease, Anaplasma phagocytophilum, in moose in southern Norway

Change of editorship and scope

Sixth international deer biology congress

Sixth international wild boar symposium

Correlates of body measurements and age in Eurasian beaver from Norway

Similar Documents

First set of microsatellite markers for genetic characterization of the Eurasian beaver (Castor fiber) based on tissue and hair samples

First set of microsatellite markers for genetic characterization of the Eurasian beaver () based on tissue and hair samples

Serum chemistry and haematology for female Eurasian lynx (Lynx lynx)

Largest fungal fruit body from India

Quota hunting of Eurasian lynx in Norway: patterns of hunter selection, hunter efficiency and monitoring accuracy

Ecological correlates of a tick-borne disease, Anaplasma phagocytophilum, in moose in southern Norway

Change of editorship and scope

Sixth international deer biology congress

Sixth international wild boar symposium

Correlates of body measurements and age in Eurasian beaver from Norway