% pubman genre = article @article{item_3231616, title = {{Shifts in male reproductive tactics over the life course in a polygynandrous mammal}}, author = {Silk, Joan B. and St{\"a}dele, Veronika and Roberts, Eila K. and Vigilant, Linda and Strum, Shirley C.}, language = {eng}, issn = {0960-9822}, doi = {10.1016/j.cub.2020.02.013}, year = {2020}, date = {2020-05-05}, abstract = {{Summary{\textless}br{\textgreater}In polygynous and polygynandrous species, there is often intense male-male competition over access to females, high male reproductive skew, and more male investment in mating effort than parenting effort [1]. However, the benefits derived from mating effort and parenting effort may change over the course of males{\textquoteright} lives. In many mammalian species, there is a $\cap$-shaped relationship between age, condition, and resource holding power as middle-aged males that are in prime physical condition outcompete older males [2, 3, 4, 5, 6, 7, 8] and sire more infants [9, 10, 11, 12]. Thus, males might derive more benefits from parenting effort than mating effort as they age and their competitive abilities decline [13]. Alternatively, older males may invest more effort in making themselves attractive to females as mates [14]. One way that older males might do so is by developing relationships with females and providing care for their offspring [14, 15]. Savannah baboons provide an excellent opportunity to test these hypotheses. They form stable multi-male, multi-female groups, and males compete for high ranking positions. In yellow and chacma baboons (Papio cynocephalus and P. ursinus), there is a $\cap$-shaped relationship between male age and dominance rank [12], and high rank enhances paternity success [12, 16]. Lactating female baboons form close ties ({\textquotedblleft}primary associations{\textquotedblright} hereafter) with particular males [15, 16, 17, 18, 19, 20], who support them and their infants in conflicts [15, 19] and buffer their infants from rough handling [20]. Females{\textquoteright} primary associates are often, but not always, the sires of their current infants [16, 20, 21, 22].}}, journal = {{Current Biology}}, volume = {30}, number = {9}, pages = {1716--1720}, eid = {e3}, }