Sentence examples similar to breeding population composition from inspiring English sources

We used the mean value for θ in our model to investigate LPAI and HPAI dynamics in waterfowl populations of 10000 birds, composed of 50% adult and 50% young birds (approximate post-breeding population composition; [60 p. 230]) or of adult birds only (wintering population).

For the remaining nine females we cannot exclude the possibility of pseudoreplication, although we suspect it is unlikely given (i) the size of our breeding population and (ii) that the composition of pairs was nearly always different (out of 194 pairs that produced a clutch, only six pairs remained together and produced a second clutch between 2002 and 2007).

Earlier generations of the New Zealand breeding programme partitioned the main breeding population into several breeds that concentrated on improving specific traits (Jayawickrama and Carson [2000]).

For example, changes in the age composition of breeders due to younger floating individuals entering the breeding population may highlight high levels of adult breeder mortality (Franklin 1992; Penteriani et al. 2011).

For example, males change their repertoire composition and song sequencing with age, which is most probably attributed to an adjustment to the breeding population [ 44– 46], or they change the sequencing of songs in response to playbacks [ 47].

The 2010 British Breeding Bird Survey shows the breeding population of buzzards rose by 146% from 1995-2009.

In 1976, the state began its Bald Eagle Restoration Project in an attempt to re-establish a breeding population.

The dolphins in Bae Ceredigion (Cardigan Bay) are Britain's largest breeding population.

In just one year, that "breeding population" is all but extinct.

Along with the warming trend came a sharp decrease in the breeding population, from about 6,000 breeding pairs to about 3,000.

Its goal is to maintain twenty-five males and twenty-five females of each species — just enough for a breeding population.