Influence of intrinsic and extrinsic attributes on neonate survival in an invasive large mammal.

摘要: Understanding factors influencing survival of neonates for wild species is important successful management, particularly determining drivers population dynamics. Wild pigs (Sus scrofa) are invasive and populations rapidly increasing in part due to high reproductive capacity. Survival adults generally high, however, piglets, neonates, largely unknown. We located at the natal nest quantified relation individual maternal biological attributes, environmental variables. During 2017-2020, we captured 50 from 13 litters documented 28 mortalities (56%) over six weeks. was positively influenced by pelage coloration, likely as a form camouflage predators. Male had higher survival. They were born larger than females, which could be beneficial thermoregulation competition milk. Neonates sows lower Sow size correlated with litter size, this finding may reflect increased nutritional demands sustaining large litters, or difficulties defending more against warmer months those cooler months. inefficient thermoregulators, thus being maintaining homeostasis well access food resources. These largest most complete data neonate pig will inform models development management strategies reduce negative impacts destructive on native ecosystems.