+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on LinkedInFollow on LinkedIn

+ Translate

Effect of anosmia on reproduction in male and female wolves (Canis lupus)

Effect of anosmia on reproduction in male and female wolves (Canis lupus)

Behavioral and Neural Biology 46(3): 272-284

Anosmia was produced in two female and three male wolves by transection of the olfactory peduncle and was confirmed by their inability to detect meat, urine, feces, anal-gland secretions, and fish emulsion. All operated animals continued to investigate the environment with their noses, to interact normally with other pack members, and to feed at levels which maintained presurgical body weights. No effect was found on reproductive physiology (females: estradiol or progesterone concentrations, ovulation, pregnancy or parturition; males: testosterone, testicular recrudescence or sperm numbers, motility or maturation). One anosmic female became dominant and although she urine-marked with a flexed leg, the rate was lower than typical for dominant females and perhaps contributed to her failure to pair-bond with the dominant male. One anosmic male raised-leg-urinated while competing for pack dominance and when kenneled away from other males. Precopulatory, copulatory, and maternal behavior were observed for one anosmic female and appeared normal. However, neither male that was sexually naive before surgery showed interest in proestrous or estrous females. The possibility that secondary degeneration of brain regions mediating sexual behavior was responsible for the failure of these males to respond was not supported. Not only was the lack of male sexual response the only serious deficit following transection, but the male which was sexually experienced prior to surgery did copulate successfully during his second postoperative breeding season despite continued anosmia. Chemosensory priming from female urine during the protracted proestrous phase, as well as urinary and vaginal odors during estrus, appear to be critical for induction of full sexual potency in sexually naive males. The importance of urine and vaginal secretions in the sexual response of experienced males is uncertain.

(PDF same-day service: $19.90)

Accession: 017870696

Download citation: RISBibTeXText

PMID: 3814040

DOI: 10.1016/s0163-1047(86)90212-8

Related references

The integration of a young female in a male pack of European wolves Canis lupus L. Zeitschrift fuer Saeugetierkunde 62(SUPPL 2): 209-213, 1997

Deferred reproduction in wolves (Canis lupus). Dissertation Abstracts International B Sciences and Engineering, 417: 2465-2466, 1981

Peculiarities of reproduction in wolves (Canis lupus L.) in central Chernozem regions. Ekologiya (Moscow): 6: 42-48, 1988

A Comparison of the Sensory Development of Wolves Canis lupus lupus and Dogs Canis lupus familiaris. Ethology 119(2), 2013

Possible not male dominated interaction among iberian wolves canis lupus. Mammalia 54(2): 312-314, 1990

Territorial marking by lone male Gray Wolves, Canis lupus. Canadian Field-Naturalist 116(2): 311-313, April-June, 2002

Characteristics of the reproduction of wolves canis lupus l. in the central chernozem zone russian sfsr ussr. Ekologiya (Moscow) (6): 42-48, 1988

A method to assess relative preference for training and environmental enrichment in captive wolves (Canis lupus and Canis lupus arctos). Zoo Biology 34(6): 513-517, 2015

The role of an audience in marking and caching in captive wolves, Canis lupus lycaon and Canis lupus baileyi. Taborsky, M, Taborsky, B Advances in Ethology; Contributions to the XXV International Ethological Conference: 268, 1997

Object permanence in domestic dogs (Canis lupus familiaris) and gray wolves (Canis lupus). Journal of Comparative Psychology 127(2): 115-127, 2014

Comparative studies of behavioural development of wolves (Canis lupus L.) and domestic dogs (Canis lupus f. fam.): new results of domestication and breeding - ethical argument. Tierarztliche Umschau 49(9): 527-531, 1994

Vocalization of European wolves (Canis lupus lupus L.) and various dog breeds (Canis lupus f. fam.). Archiv fuer Tierzucht 43(4): 387-397, 2000

Research of the yearly cycle of vocal activity of wolves, Canis lupus in breeding Badania aktywnosci glosowej wilkow, Canis lupus, w cyklu rocznym, w warunkach hodowlanych. Roczniki Akademii Rolniczej w Poznaniu, 330: 25-38, 2000

Calcanea of domestic dogs Coyotes, wolves, feet, dimensions, crossbreeds, comparison study, Canis domesticus, Canis lupus, Canis latrans. Transactions of the Illinois State Academy of Science4(3-4): 39-49, 1981