Estimation of moose parturition dates in Colorado: incorporating imperfect detections

Item Metadata

Dublin Core

Title

Estimation of moose parturition dates in Colorado: incorporating imperfect detections

Description

Researchers and managers use productivity surveys to evaluate moose populations for harvest and population management purposes, yet such surveys are prone to bias. We incorporated detection probability estimates (p) into spring and summer ground surveys to reduce the influence of observer bias on the estimation of moose parturition dates in Colorado. In our study, the cumulative parturition probability for moose was 0.50 by May 19, and the probability of parturition exceeded 0.9 by May 27. Timing of moose calf parturition in Colorado appears synchronous with parturition in more northern latitudes. Our results can be used to plan ground surveys in a manner that will reduce bias stemming from unobservable and yet-born calves.

Bibliographic Citation

Bergman, E. J., F. P. Hayes, and K. Aagaard. 2020. Estimation of moose parturition dates in Colorado: incorporating imperfect detections. Alces 56:127-135. https://alcesjournal.org/index.php/alces/article/view/277

Creator

Bergman, Eric J.
Hayes, Forest P.
Aagaard, Kevin

Subject

Calf-at-heel
Ground surveys
Detection probability (p)
Parturition
Recruitment

Extent

9 pages

Date Created

2020-09-22

Type

Article

Format

application/pdf

Language

English

Is Part Of

Alces

Collection

Citation

Bergman, Eric J., Hayes, Forest P. , and Aagaard, Kevin, “Estimation of moose parturition dates in Colorado: incorporating imperfect detections,” CPW Digital Collections, accessed July 13, 2024, https://cpw.cvlcollections.org/items/show/222.