Age-Related Reproductive Effort and Senescence in Free-Ranging Moose, Alces alces

Ecology ◽  
2001 ◽  
Vol 82 (6) ◽  
pp. 1613 ◽  
Author(s):  
Goran Ericsson ◽  
Kjell Wallin ◽  
John P. Ball ◽  
Martin Broberg
Ecology ◽  
2001 ◽  
Vol 82 (6) ◽  
pp. 1613-1620 ◽  
Author(s):  
Göran Ericsson ◽  
Kjell Wallin ◽  
John P. Ball ◽  
Martin Broberg

Mammalia ◽  
2019 ◽  
Vol 83 (6) ◽  
pp. 593-600 ◽  
Author(s):  
Louis C. Bender ◽  
Jessica R. Piasecke

Abstract Successful production of calves is necessary for growth of North American elk (Cervus elaphus Linnaeus 1758) populations, but few studies have evaluated age-related effects on both the conception and survival of a calf to weaning in multiple free-ranging populations. Conception and survival of calves to weaning were both affected by maternal age, with old (age 9 and older) females showing reproductive senescence as compared to prime-aged (ages 2–8) females despite achieving similar or greater size and condition. Reproductive senescence in our free-ranging populations ultimately resulted in old females weaning fewer calves (0.42 calves/female) than did prime-aged females (0.64 calves/female). Other factors, especially maternal size, also influenced conception and survival to weaning, and these interacted with age in a consistent manner, i.e. larger females or females in better condition were more likely to conceive and successfully wean calves within each age class. Female age structure receives less consideration in ungulate management than does male age structure, despite demonstrated impacts on population productivity of multiple species because of reproductive senescence. Because of the large proportion of individuals in senesced age classes in elk populations, low productivity in populations may simply reflect female age structure, rather than other frequently hypothesized factors.


1994 ◽  
pp. 169-210 ◽  
Author(s):  
Charles J. Deutsch ◽  
Daniel E. Crocker ◽  
Daniel P. Costa ◽  
Burney J. Le Boeuf

2014 ◽  
Vol 78 (6) ◽  
pp. 976-984 ◽  
Author(s):  
David G. Hewitt ◽  
Mickey W. Hellickson ◽  
John S. Lewis ◽  
David B. Wester ◽  
Fred C. Bryant

2018 ◽  
Vol 45 (4) ◽  
pp. 502-509 ◽  
Author(s):  
Daniela SB. Barros ◽  
Alina L. Evans ◽  
Jon M. Arnemo ◽  
Fredrik Stenbacka ◽  
Göran Ericsson

Evolution ◽  
2019 ◽  
Vol 73 (2) ◽  
pp. 317-328 ◽  
Author(s):  
Rolando Rodríguez‐Muñoz ◽  
Jelle J. Boonekamp ◽  
Xing P. Liu ◽  
Ian Skicko ◽  
David N. Fisher ◽  
...  

2002 ◽  
Vol 38 (4) ◽  
pp. 796-803 ◽  
Author(s):  
Oladele A. Ogunremi ◽  
Murray W. Lankester ◽  
Shaun J. Dergousoff ◽  
Alvin A. Gajadhar

1987 ◽  
Vol 21 (2) ◽  
pp. 91-96 ◽  
Author(s):  
Christine R. Maher ◽  
John A. Byers

2014 ◽  
Vol 56 (1) ◽  
Author(s):  
Marianne Lian ◽  
Alina L Evans ◽  
Mads F Bertelsen ◽  
Åsa Fahlman ◽  
Henning A Haga ◽  
...  

2016 ◽  
Vol 85 (6) ◽  
pp. 1540-1551 ◽  
Author(s):  
John T. Paterson ◽  
Jay J. Rotella ◽  
Jennifer M. Mannas ◽  
Robert A. Garrott

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