The numerous willow warblers, having journeyed anything up to 3000 to 4000 miles, seem eager to make the most of things by producing two broods
of young during their stay here, whereas the garden warblers, also numerous this year, stick at one.
The role workers play, whether tending the brood
or foraging for food, is influenced by their age, fertility, and nutritional status.
We measured attributes of all brood
crevices that were documented from 2010 to 2015 following methods of Rossell et al.
A linear regression was used to determine whether mean sinking velocity ([U.sub.T]) and swimming drag ([F.sub.D]) of each brood
In January, the Moorland Association said it welcomed the decision by Natural England to test if brood
management will help improve the hen harrier population and range in upland northern England.
survival was similar in relation to age ([[chi square].sub.1] = 0.27, p = 0.610) and year ([[chi square].sub.3] = 0.20, p = 0.892), with seven females rearing broods
(28%) from 25 hatched nests.
These observations led us to hypothesize that there may be reciprocal interspecific brood
parasitism between N.
In this regard, tangible information on the natural nest characteristics like the optimum nest volume, worker brood
cell dimensions and bee space of A.
A 5-mm-wide black zip tie was used to gently sweep the inside of the mantle to extract larvae to easily determine the development stage of the brooded
larvae (white, early-stage development, or black, late-stage development) (Hopkins 1936, Carson 2010).
When a colony has a good quality queen, we expect a high egg laying rate and viable brood
, resulting in a vigorous population, which will determine the maintenance and success of the colony (Bienefeld et al., 2007), as well as greater resilience to environmental change.
For about 8 mo, colonies fed crickets, raw beef liver, and raw chicken liver all had similar proportions of colonies producing brood
In our Sefton Park clan, there's a healthy brood
with eight cygnets between mum and dad.