Factors affecting the bird diversity of planted and semi-natural oak forests in Ireland
| Autor: | Thomas C. Kelly, John O'Halloran, Oisín F. McD. Sweeney, Conor Graham, Sandra Irwin, Mark W. Wilson, Tom Gittings |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Bird Study. 61:309-320 |
| ISSN: | 1944-6705 0006-3657 |
| DOI: | 10.1080/00063657.2014.927415 |
| Popis: | Capsule In Ireland, which has relatively low diversity of bird species, commercially mature plantation oak forests (aged 72–151 years old) have similar bird diversity to typical semi-natural oak woodlands, and higher bird diversity than over-browsed semi-natural oak woodland, with bird diversity related to habitat complexity.Aims To investigate whether oak plantations can support comparable bird assemblages to semi-natural oak woodlands, and to assess if high levels of ungulate browsing and grazing impact on the quality of semi-natural oak woodland habitat for birds.Methods Bird and vegetation surveys were conducted in commercially mature oak plantations (n = 4), semi-natural oak woodlands (n = 10) and intensively browsed semi-natural oak woodland (n = 4). Species richness, total bird density, warbler density and density of parids were compared between oak forest types. Variation in bird communities between sites was investigated using ordination, and relationships between bird and vegetation metrics were... |
| Databáze: | OpenAIRE |
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