Sperm competition drives the evolution of suicidal reproduction in mammals

Suicidal reproduction (semelparity) has evolved in only four genera of mammals. In these insectivorous marsupials, all males die after mating, when failure of the corticosteroid feedback mechanism elevates stress hormone levels during the mating season and causes lethal immune system collapse (die-o...

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Veröffentlicht in:	Proceedings of the National Academy of Sciences - PNAS 2013-10, Vol.110 (44), p.17910-17914
Hauptverfasser:	Fisher, Diana O., Dickman, Christopher R., Jones, Menna E., Blomberg, Simon P.
Format:	Artikel
Sprache:	eng
Schlagworte:	adrenal cortex hormones Animal and plant ecology Animal reproduction Animal, plant and microbial ecology Animals arthropods Australia Bayes Theorem Biological and medical sciences Biological Evolution Biological Sciences body size breeding season Breeding seasons copulation Demecology Die off Ecological competition energy Evolution Female Female animals females Food Chain Fundamental and applied biological sciences. Psychology habitats Hormones Immune system insectivores insects latitude life history Male Male animals males Mammalia Mammals Marsupialia - physiology Marsupials Mating behavior Mating Preference, Animal - physiology Metatheria ovulation Papua New Guinea photoperiod Population Dynamics predators Predictability Regression Analysis Reproduction - physiology Seasons Sexual Behavior, Animal - physiology sexual selection South America Sperm competition Spermatozoa - physiology Survival Analysis testes Testis - anatomy & histology Vertebrata
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