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Comparison of nestl...
Comparison of nestling diet between first and second broods of great tits Parus major in urban and forest habitats
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- Sinkovics, Csenge (författare)
- University of Pannonia
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- Seress, G. (författare)
- University of Pannonia
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- Pipoly, I. (författare)
- University of Pannonia
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- Vincze, E. (författare)
- Lund University,Lunds universitet,Evolutionär ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Teoretisk populationsekologi och evolution,Forskargrupper vid Lunds universitet,Evolutionary ecology,Department of Biology,Faculty of Science,Theoretical Population Ecology and Evolution Group,Lund University Research Groups,University of Pannonia
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- Liker, A. (författare)
- University of Pannonia
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(creator_code:org_t)
- 2023
- 2023
- Engelska 14 s.
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Ingår i: Animal Biodiversity and Conservation. - 1578-665X. ; 46:2, s. 199-212
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://lup.lub.lu.s...
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https://doi.org/10.3...
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Abstract
Ämnesord
Stäng
- Comparison of nestling diet between first and second broods of great tits Parus major in urban and forest habitats. To understand why early broods tend to be more successful than late broods we investigated the nestling diet and reproductive success of great tit pairs that had both a first and a second brood in the same breeding season. We found that in forest habitats great tit parents delivered similar composition and amount of food per nestlings throughout the breeding season, resulting in similar nestling body mass and survival in both first and second broods. In urban habitats, however, although parents provided similar amounts of food to the second broods they tended to deliver fewer caterpillars. In parallel with this, we observed lower nestling survival in second urban broods than in first broods even though the body mass of surviving nestlings was similar to that of the first broods. These findings suggest that although parents produce smaller second broods in both habitats, they are able to compensate for lower food availability in forest habitats but not in urban habitats, thus leading to reduced food quality and lower offspring survival in urban second broods.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- Caterpillar
- Date hypothesis
- Food availability
- Multiple brooding
- Nestling diet
- Nestling food
- Urbanisation
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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