This suggests that C. obscurior males are capable of estimating their local breeding chances and adaptively adjust their dispersal behaviour in both an opportunistic and a risk-sensitive way, thus showing hitherto unknown behavioural plasticity in social insect males.
They appear to be capable of estimating their breeding chances in the natal nest in respect of the presence of competitors and the number of potential mating partners and adjust their dispersal behaviour accordingly.
Although the lack of nucleotide diversity in these genes could reflect a history of selection during domestication or improvement, the low diversity in maize could also reflect low diversity in teosinte and/or the demographic effects of domestication, plant breeding and/or chance events (e.g. genetic drift).
If his rhetoric is supported by deeds, then political pressure has a good chance of breeding a more humane and democratic regime in Iran.
Since early-return migrants tend to be the fittest of their species, the new law makes targets of precisely those birds with the best chance of breeding success.
"These two frogs now have a chance of breeding, whereas if we'd left them where they were the poor male would just be sat there calling every night with no one to hear him," Dawson said.
She then studied those offspring, to see how they fared.What she found was that young born as a result of adultery were 30% more likely to survive for at least two years, and thus have a decent chance of breeding themselves, than those fathered by a female's permanent male partner.
In the case of two breeding pairs and four young the chance is one in eight that the young will all be of the same sex.
Furthermore, our previous experimental work shows that burying beetles practice reproductive restraint, holding back resources from current reproduction so as to prolong the lifespan, presumably to increase the chance of breeding again (Cotter et al., 2011).
Thin cows have a slower chance at breeding back than normal-conditioned cows do, and if she's really thin, then that should be a red flag enough.
