Sentence examples for undertaking migration from inspiring English sources

Based on this information and on the monthly proportions of birds staying in or flying away from the Camargue described above, it was then possible to estimate the number of birds staying in the ringing area (the Camargue), moving between wintering sites, and undertaking migration.

These birds are not subjected to sustained high-energy expenditure and unlikely to experience immunosuppression, for which there is increasing evidence in birds undertaking migration (29 ).

On the other side, a recent study of trout in HAL documented that 15% of individuals aged between 1 and 3 years and with a length exceeding 12 cm left the lake and would potentially undertake migration to the sea, whereas 40% migrated into the lake and 44% remained in the tributaries [ 78].

One of Dabiq's preoccupations was the horror of life in the infidel (kuffar) societies of the west and the religious obligation of Muslims around the world to undertake migration to the Islamic State (hijrah) now that the caliphate had been established.

Household A is less likely to undertake migration than household B. Variations at the household level are given by the proportion of males among adult members.

He planned to continue to undertake migration labour while his wife stayed behind in the village to look after their child.

From February to May we considered that Common Teal could either move between the Camargue and another wintering site, or undertake migration from the Camargue to breeding areas [19] [22].

Once they had undertaken migration, simulated birds moved every day (from a mesh to another) until they reached their breeding site, considered in this study as being 63° North or more [14].

The causes of variation in the RI of female leatherbacks are unknown, but may be linked to the availability of food sources and thus the ability to store enough energy resources to undertake migration to breeding areas [25].

In general, healthy individuals are more likely to undertake migration, leaving the less healthy ones at home.

Furthermore, in general, healthy individuals (e.g. younger individuals) are more likely to undertake migration, and age is a major factor in migration selection: the healthy migrant effect (1, 14).