caa a22 4500 465782744 CHVBK 20180323111959.0 cr unu---uuuuu 170327e19901001xx s 000 0 eng 10.1007/BF00164899 doi (NATIONALLICENCE)springer-10.1007/BF00164899 Trumbo Stephen Department of Biology, University of North Carolina, 27599, Chapel Hill, NC, USA aut Reproductive benefits of infanticide in a biparental burying beetle Nicrophorus orbicollis [Elektronische Daten] [Stephen Trumbo] Summary: Single females and pairs of Nicrophorus orbicollis Say were established as residents on carcasses to investigate interactions with intruders under natural conditions. When carcasses were exhumed 10-12 days later, one or more intruders were found on 19% of nests. Intruders expelled one or both of the residents and sometimes paired with a resident or another intruder of the opposite sex. An intruder tended to be larger than the same-sex adult it replaced on a carcass. A male intruder that joined a single female, on the other hand, was not necessarily larger than the resident female. There was indirect evident that intruders committed infanticide and then started their own reproductive attempt on the carcass. Follow-up experiments in the laboratory indicated that interactions between intruders and residents were agonistic and that infanticide regularly occurred as a consequence of a takeover. Use of a genetic marker demonstrated that male and female intruders obtained reproductive benefits from infanticide. However, intruders sometimes cared for mixed broods consisting of their own young and young of a prior resident. Springer-Verlag, 1990 Behavioral Ecology and Sociobiology Springer-Verlag 27/4(1990-10-01), 269-273 0340-5443 27:4<269 1990 27 265 https://doi.org/10.1007/BF00164899 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00164899 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Trumbo Stephen Department of Biology, University of North Carolina, 27599, Chapel Hill, NC, USA aut NATIONALLICENCE 773 0- Behavioral Ecology and Sociobiology Springer-Verlag 27/4(1990-10-01), 269-273 0340-5443 27:4<269 1990 27 265 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer