Cryptic female choice in crickets occurs through the premature removal of a male's spermatophore after copulation …, which terminates sperm transfer. Although it is known that this behavior can directly influence the paternity of offspring … female house crickets (Acheta domesticus) confers fitness benefits on females, by randomly assigning mates to females but …

nearby southern elephant seal population at Punta Delgada. We compare genetic paternity with various behavioral indices of …

fledging success. High rates of extrapair paternity and apparent female preference for Carolina-like males suggest that mate …

competition. Sperm competition models also predict that larger testes are associated with increased siring success. Our paternity …

fertilized, their behavior may be interpreted as paternal care. In this article, we provide genetic data for paternity assignment …) method, 78% of the eggs were nonpaternal. Relatedness estimates further supported our paternity analyses. The average …

= 13 group-years). However, polyandrous and polygynous patterns of mating were common. Multiple paternity was confirmed … in 38% of litters (N = 16) containing offspring with resolved maternity and paternity (N = 30 cubs); when … including cubs with unresolved paternity (N = 20), multiple-paternity may have occurred in 69% of litters. Litters were …

. Microsatellite profiling from 1999 and 2000 revealed that some extrapair paternity was more common in peripheral nests, but we did …

Theoretical models suggest that males should adjust their parental effort according to paternity when parental effort … is costly, paternity varies among clutches, and males have a cue to assess paternity. To date, nearly all tests of this … between paternity and male parental care in a fish system. In the pumpkinseed sunfish (Lepomis gibbosus), parental care is …