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Tag: "brood" at biology news

Symbiotic bacteria protect hunting wasps from fungal infestation

...provision their larvae with paralyzed honeybees in brood cells in the soil. As part of this process, the re...liver the symbiotic bacteria to the ceiling of the brood cell before finally closing off the cell. The larvae then take up the bacteria and apply them to the...

Sociality of sweat bees evolved simultaneously during climate change

...ows two broods to emerge instead of one. The first brood (workers) helps raise the second brood (reproductives). Danforth, who teaches Alien Empire: Bizarre Biology of Bugs (Entomology 201), a ...

Uncovering sex-change secrets of black sea bass

...g a high-quality fish to market. "We invest in our brood stocks, the parents of the young fish, much as a thoroughbred horse farm invests in mares and stallions," he says. "It doesn't do us much good if we always have to go out and get new females." With funding from NH Sea Grant, Berlinsky has teamed wit...

Female birds boost up their eggs when hearing sexy song

...ents, in the experiment there was no difference in brood sex ratio between the different songs played to the females, which suggests different levels of female control. Male birdsong has long been known to attract females and influence mate choice decisions and even induce an alteration in the offspring's ...

Where have all the butterflies gone?

...mproving conditions. But for species with only one brood per year, a catastrophic season will have repercussions for up to a decade. More butterflies may still emerge in the mountains. The rain has led to a heavy snow pack in the Sierra Nevada, which typically means a good year for butterflies in the high...

'Nymph of the sea' reveals remarkable brood

...scientists discovered the mother complete with her brood of some 20 eggs and 2 possible juveniles inside, t...rovides an unequivocal and unique view of parental brood care in the invertebrate fossil record, it allows gender to be determined in an animal as old as the...

Queen bee promiscuity boosts hive health

...e drone or from 10 drones. Seeley then sprayed the brood colonies of the resulting 49 colonies (24 from "multiple-mate" queens and 25 from singly mated queens) with water tainted with spores of the highly virulent bacterium that infects bee larvae and causes the disease American Foulbrood. Sure enough, t...

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