Litter sex composition influences dominance status of Alpine marmots (Marmota marmota)

Oecologia ◽  
2015 ◽  
Vol 179 (3) ◽  
pp. 753-763 ◽  
Author(s):  
Pierre Dupont ◽  
Roger Pradel ◽  
Sophie Lardy ◽  
Dominique Allainé ◽  
Aurélie Cohas
1989 ◽  
Vol 67 (3) ◽  
pp. 575-578 ◽  
Author(s):  
Paule Hébert ◽  
Cyrille Barrette

Scent marking is known to be related to dominance in mammals. Here we ask whether the isolated scent from the oral glands of woodchucks (Marmota monax) can advertise dominance. The scent of an individual was presented to a conspecific before the two met and could establish a dominance–subordination relationship. For all 19 dyads that would later express aggressive dominance, the individual pre-encounter rate of scent marking was the same no matter the sex, composition of the dyad, or the future status of the individual. However, when they were presented with scent marks of a conspecific (before meeting the marker), future subordinates marked the scent of future dominants more than vice versa (Mann–Whitney U-test, Z = 2.246, [Formula: see text]). The status of members of dyads was accurately predicted from the pre-encounter marking performance in 14 of the 19 dyads (χ2 = 3.368; 0.10 > p > 0.05). This suggests that scent, by itself, conveys information on the dyadic dominance status of an individual relative to the receiver of the olfactory signal.


Author(s):  
М. G. Vinnikov ◽  
R. N. Melnik ◽  
S. А. Grin ◽  
А. Ya. Samuylenko ◽  
N. V. Melnik ◽  
...  

The system of veterinary and sanitary measures in the CJSC "Makeevo" of the Zarayskiy municipal district of the Moscow region was studied during 2015-2016. The tests were carried out on 2232 cattle with age and sex composition: 965 cows, 206 heifers, 186 heifers (2014 year of birth), 52 bulls (2014 year of birth,) 426 heifers (2015 year of birth), 397 male calves (2015 year of birth). The system of veterinary and sanitary measures to prevent infectious diseases of cattle have been developed on the basis of modern scientific achievements, taking into account many years of practical experience in Russia, includes a set of measures: an analysis of the current situation in the farm; identification of urgent priority measures, specialists training on the farm, monitoring of the proposed measures implementation; elaboration of the farm development plan. The results of the recommendations production tests and the system of veterinary and sanitary measures on number of cattle in the dairy farm enterprise through the modernization of the production process are presented. Application of organizational-economic, sanitary, diagnostic, preventive and therapeutic measures was allowed to protect 99.25% of animals from necrobacteriosis.


2005 ◽  
Vol 96 (2) ◽  
pp. 349-360 ◽  
Author(s):  
Jos Van Ommeren ◽  
Giovanni Russo ◽  
Reinout E. De Vries ◽  
Mark Van Ommeren

The hypothesis that the sex composition of an applicant pool affects the hiring probabilities of individual job applicants was tested using gender-distinctive information on accepted and rejected job applicants in The Netherlands. The evidence supports this hypothesis, although the effect sizes are moderate. Both men and women have a lower probability of being hired when the applicant pool contains fewer applicants from their own sex.


1983 ◽  
Vol 6 (3-4) ◽  
pp. 19-32 ◽  
Author(s):  
Patricia Martin ◽  
Kristin A. Shanahan
Keyword(s):  

1980 ◽  
Vol 42 (2) ◽  
pp. 437 ◽  
Author(s):  
Anne R. Pebley ◽  
Hernan Delgado ◽  
Elena Brineman

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