Sentence examples for study of breeding from inspiring English sources

A study of breeding dates for nine species of seabirds found in the Antarctic shows that climate change has had an impact in the southern hemisphere.

A study of breeding behavior in the wild has never been conducted; the artificial conditions of captivity may cause the observed behavior of pygmy hippos in zoos to differ from natural conditions.

This colony is of historic interest as it was the fourth emperor colony to be discovered [11] and the location where the first study of breeding behaviour and early chick growth was carried out [15].

In a field study of breeding male and female barn swallows (Hirundo rustica erythrogaster) from North America, we assessed within-individual changes in carotenoid profiles as a function of both morphology and reproductive performance.

In an experimental study of breeding success in the absence and presence of competition, as well as across three breeding densities, Fleming and Gross (1994) found that competition alone can generate a 52-fold increase in the opportunity for selection among male Oncorhynchus kisutch (coho salmon).

More recent studies of breeding place the mating season between February and June, as opposed to between February and March.

Comparative studies of breeding behaviour and social interactions in different density settings, and under different historic and present hunting regimes, may provide further insights into the ecology of orangutans under optimal ecological conditions.

Studies of breeding populations generated from landrace accessions may provide information on variation in traits that could be adaptive under a changing climate (e.g., Lafitte and Edmeades 1997).

Several research groups have performed long-term studies of breeding barnacle geese in the Baltic region during the past 30 years, focussing on population dynamics, behaviour and genetics (e.g. [ 21, 22, 25]).

With existing genome-wide data sets a fast estimation algorithm is an invaluable asset because it will significantly facilitate the frequent re-estimation of the marker effects and breeding values, the use of cross-validation and permutation-based techniques, and massive simulation studies of breeding programs.

Of 17 studies of breeding birds in reedbeds compared with an alternate habitat (Table 5), there were about 16 instances of species that were more abundant in Phragmites, and about 36 instances of species more abundant in the alternate habitat (these tallies include some duplication of species among studies).