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- Ekman, J, et al.
(författare)
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Parental nepotism enhances survival of retained offspring in the Siberian jay
- 2000
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Ingår i: BEHAVIORAL ECOLOGY. - : OXFORD UNIV PRESS INC. - 1045-2249. ; 11:4, s. 416-420
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Tidskriftsartikel (refereegranskat)abstract
- The evolutionary payoff accruing to parents from breeding offspring could be an incentive for prolonged investments in the offspring. Enhanced survival for offspring as a result of such a prolonged parental investment would increase the value of remaining
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2. |
- Ekman, J, et al.
(författare)
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Queuing for preferred territories: delayed dispersal of Siberian jays
- 2001
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Ingår i: JOURNAL OF ANIMAL ECOLOGY. - : BLACKWELL SCIENCE LTD. - 0021-8790. ; 70:2, s. 317-324
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Tidskriftsartikel (refereegranskat)abstract
- 1. Siberian jays (Perisoreus infaustus) can acquire breeding status along two routes. Some offspring dispersed in their first summer of life, but one-third of birds ringed as nestlings (39 of 117,40 broods) postponed dispersal beyond their first winter an
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