Sentence examples for low breeding from inspiring English sources

The Tasmanian wedge-tailed eagle is classified nationally and at a State level as endangered due to its small number of breeding pairs, low breeding success and high rate of mortality from unnatural causes.

Although low breeding success has been claimed to be the main threat for the viability of future little bustard populations, the surprising lack of studies dealing with ecological requirements of broods hinders the implementation of efficient conservation practices.

It was found that, in years where the availability of sand eels was low, breeding success rates fell, with many chicks starving to death.

Also ungrazed grassland habitat had a negative growth rate, which, however, seemed more caused by the relatively low breeding success caused by a high risk of nest predation (the most important nest predators, i.e. weasels Mustela nivalis, stoats M. erminea and adders Vipera berus, largely prefer hunting in tall field layers [55]).

Penguins also are vulnerable to avian predators, with low breeding success in small colonies being partially attributable to depredation [ 33].

The throat colour rank of males chosen at high and low breeding male density did not differ, suggesting females used a relative sampling strategy (Table  3).

When focussing the editing resources on this smaller number of sires, there was no difference in response to selection or inbreeding whether the edited sires were those with the highest or lowest breeding values amongst the selected set.

In semi-arid or arid environment with low mosquito breeding sites for example, man-vector could be much reduced or prevented because of low vector density.

The relatively low average breeding age of the females in the present population can only be partially explained by the breed's comparably low life expectancy and the fact that SKK regulations generally prohibit the use of Irish Wolfhound bitches above seven years of age for breeding.

Marie Stopes was a fanatical eugenicist, an ardent believer in promoting contraception to stop the "unfit" and the "low grade" breeding and to encourage a vigorous imperial race.

As precipitation decreases to extremely low levels, breeding habitat for all mosquitoes decreases, also reducing WNv transmission risk.