Jong, B.M. de (2013) Essay : Are chicks forcing their parents to migrate? Master's Thesis / Essay, Biology.
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Abstract
The ultimate cause for migration is not yet known, it is here suggested that precocial chicks might force their parents to migrate. Precociality demands higher energy expenditures from a chick than altriciality does. Growing up on the Arctic tundra costs even more energy, due to low temperatures and strong wind. The growing speed on the tundra has to be high to finish growing before the end of the short summer, increasing energy demands even more. There is however enough and easy to find food available on the tundra to maintain these high energy expenditures. In the wintering area food and water are scarcer while competition is higher. Therefore precocial birds are forced to migrate to enable their chicks to find enough food.
| Item Type: | Thesis (Master's Thesis / Essay) |
|---|---|
| Degree programme: | Biology |
| Thesis type: | Master's Thesis / Essay |
| Language: | English |
| Date Deposited: | 15 Feb 2018 07:55 |
| Last Modified: | 15 Feb 2018 07:55 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/11479 |
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