Predator-induced injury of a neonatal pronghorn cues abandonment of current reproductive investment
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Abstract
Evolutionary theory predicts that parental care is favored when the fitness benefits outweigh the costs of providing care (Klug et al., 2012). In mammals, parental care is generally provided by females, who provide nourishment through lactation, protection from predators, aid in juvenile movement, or otherwise facilitate offspring survival (Balshine, 2012; Lent, 1974). However, in capital breeding species that rely on stored energy reserves for reproduction, increased investment can reduce the female's body condition and the number of offspring produced in subsequent years (Balme et al., 2017; Cook et al., 2013; Stephens et al., 2009). Unlike income breeders, which produce offspring from concurrent energy uptake, capital breeders deplete energy stores during reproduction, and lactation hinders the recovery of these stores (Clutton-Brock et al., 1983; Cook et al., 2013; Stephens et al., 2009). Consequently, iteroparous mammals face a trade-off between investing in current offspring and investing in maintenance or future offspring (Hamel et al., 2010; Stearns, 1989; Williams, 1966).
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Predator-induced injury of a neonatal pronghorn cues abandonment of current reproductive investment |
| Series title | Ecology |
| DOI | 10.1002/ecy.70111 |
| Volume | 106 |
| Issue | 5 |
| Publication Date | May 18, 2025 |
| Year Published | 2025 |
| Language | English |
| Publisher | Ecological Society of America |
| Contributing office(s) | Coop Res Unit Leetown |
| Description | e70111, 6 p. |