Title |
Sex-specific selection for MHC variability in Alpine chamois
|
---|---|
Published in |
BMC Ecology and Evolution, February 2012
|
DOI | 10.1186/1471-2148-12-20 |
Pubmed ID | |
Authors |
Helmut Schaschl, Franz Suchentrunk, David L Morris, Hichem Ben Slimen, Steve Smith, Walter Arnold |
Abstract |
In mammals, males typically have shorter lives than females. This difference is thought to be due to behavioural traits which enhance competitive abilities, and hence male reproductive success, but impair survival. Furthermore, in many species males usually show higher parasite burden than females. Consequently, the intensity of selection for genetic factors which reduce susceptibility to pathogens may differ between sexes. High variability at the major histocompatibility complex (MHC) genes is believed to be advantageous for detecting and combating the range of infectious agents present in the environment. Increased heterozygosity at these immune genes is expected to be important for individual longevity. However, whether males in natural populations benefit more from MHC heterozygosity than females has rarely been investigated. We investigated this question in a long-term study of free-living Alpine chamois (Rupicapra rupicapra), a polygynous mountain ungulate. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Spain | 1 | 50% |
United States | 1 | 50% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 1 | 50% |
Practitioners (doctors, other healthcare professionals) | 1 | 50% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
France | 1 | 1% |
Austria | 1 | 1% |
South Africa | 1 | 1% |
Spain | 1 | 1% |
Croatia | 1 | 1% |
Serbia | 1 | 1% |
Unknown | 63 | 91% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Researcher | 17 | 25% |
Student > Ph. D. Student | 15 | 22% |
Student > Master | 9 | 13% |
Student > Bachelor | 6 | 9% |
Student > Postgraduate | 5 | 7% |
Other | 9 | 13% |
Unknown | 8 | 12% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 46 | 67% |
Veterinary Science and Veterinary Medicine | 3 | 4% |
Environmental Science | 3 | 4% |
Biochemistry, Genetics and Molecular Biology | 3 | 4% |
Medicine and Dentistry | 2 | 3% |
Other | 2 | 3% |
Unknown | 10 | 14% |