The mating system of the brown bear in relation to the sexually selected infanticide theory

摘要: mam_184 12..34 1. Research on mating systems and reproductive strategies is valuable for providing ethological knowledge, important the management conservation of a species, in broader sense, biodiversity conservation. 2. We reviewed literature to document system brown bear Ursus arctos. determined that many aspects reproduction remain unclear, including (i) biological aspects, such as hormone oestrous cycling, sperm competition, mate choice, sexually selected infanticide, etc. (ii) human impacts system, occurring when humans alter population size structure, through, example, hunting or habitat degradation. 3. considered three classification frameworks from (Emlen & Oring 1977, Clutton-Brock 1989, Shuster Wade 2003) applied various populations them. did this plasticity bear, find commonalities among reported classifications order provide general common bear’s system. *Correspondence authors. †S. M. J. G. Steyaert A. Endrestol contributed equally paper. Mammal Rev. 2012, Volume 42, No. 1, 12–34. Printed Singapore. © 2011 The Authors. Review Society, Review, 12–34 4. can, general, be classed ‘polygamous’. Subclassifications can nevertheless smaller spatial scales. 5. Within polygamous influence at individual level. Mating often lack terminology, which contributes variety published bear.