Eurasian hobby density, nest area occupancy, diet, and productivity in rlation to intensive agriculture
A Eurasian Hobby (Falco subbuteo) population of 13-18 breeding pairs was studied for 6 years from 1987 to 1995 in a 62 km2 study area located within the seasonal flood zones of the Po River plain in northern Italy and characterized by intensive farmland interspersed with poplar (Populus sp.) plantat...
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1999
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Online Access: | http://hdl.handle.net/11571/1805 https://doi.org/10.2307/1370068 |
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ftunivpavia:oai:iris.unipv.it:11571/1805 2024-02-27T08:35:38+00:00 Eurasian hobby density, nest area occupancy, diet, and productivity in rlation to intensive agriculture BOGLIANI, GIUSEPPE Sergio F. Bogliani, Giuseppe Sergio, F. 1999 STAMPA http://hdl.handle.net/11571/1805 https://doi.org/10.2307/1370068 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000083884100010 volume:101 issue:4 firstpage:806 lastpage:817 numberofpages:12 journal:CONDOR http://hdl.handle.net/11571/1805 doi:10.2307/1370068 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0032737945 Adaptation to intensive farmland Diet Eurasian Hobby Falco subbuteo Nest area occupation rate Nest dispersion Productivity info:eu-repo/semantics/article 1999 ftunivpavia https://doi.org/10.2307/1370068 2024-01-31T17:41:11Z A Eurasian Hobby (Falco subbuteo) population of 13-18 breeding pairs was studied for 6 years from 1987 to 1995 in a 62 km2 study area located within the seasonal flood zones of the Po River plain in northern Italy and characterized by intensive farmland interspersed with poplar (Populus sp.) plantations. Five percent of breeding attempts (n = 78 over the whole period) failed because of clear cutting of the nest tree and 4% because of human disturbance associated with clear cutting of the nesting woodlot. Fledging success was negatively related to laying date. Year after year, the nests of each pair were found in restricted traditional 'nest areas,' but not all nest areas were occupied every year, even if suitable woodlots were available within them. Occupation rate of nest areas was positively correlated with breeding success. The nestlings' avian diet was dominated by Swifts (Apus apus) and by Passer spp., accounting for 53 and 25%, respectively of 317 identified prey items. The local Eurasian Hobby population appeared to have adapted fairly well to the intensively managed agroforestry system, with recorded density and productivity in the range reported for other European populations in less intensively cultivated areas. We did not detect any decline in average density and productivity with increasing levels of agricultural change in various European populations. Possible reasons for this species' successful reproduction in modern agricultural landscapes include timing of breeding, tolerance of habitat fragmentation and of human activities near to the nest, tolerance of proximity to neighbors, type of diet, and absence of important predators. Article in Journal/Newspaper Apus apus IRIS UNIPV (Università degli studi di Pavia) The Condor 101 4 806 817 |
institution |
Open Polar |
collection |
IRIS UNIPV (Università degli studi di Pavia) |
op_collection_id |
ftunivpavia |
language |
English |
topic |
Adaptation to intensive farmland Diet Eurasian Hobby Falco subbuteo Nest area occupation rate Nest dispersion Productivity |
spellingShingle |
Adaptation to intensive farmland Diet Eurasian Hobby Falco subbuteo Nest area occupation rate Nest dispersion Productivity BOGLIANI, GIUSEPPE Sergio F. Eurasian hobby density, nest area occupancy, diet, and productivity in rlation to intensive agriculture |
topic_facet |
Adaptation to intensive farmland Diet Eurasian Hobby Falco subbuteo Nest area occupation rate Nest dispersion Productivity |
description |
A Eurasian Hobby (Falco subbuteo) population of 13-18 breeding pairs was studied for 6 years from 1987 to 1995 in a 62 km2 study area located within the seasonal flood zones of the Po River plain in northern Italy and characterized by intensive farmland interspersed with poplar (Populus sp.) plantations. Five percent of breeding attempts (n = 78 over the whole period) failed because of clear cutting of the nest tree and 4% because of human disturbance associated with clear cutting of the nesting woodlot. Fledging success was negatively related to laying date. Year after year, the nests of each pair were found in restricted traditional 'nest areas,' but not all nest areas were occupied every year, even if suitable woodlots were available within them. Occupation rate of nest areas was positively correlated with breeding success. The nestlings' avian diet was dominated by Swifts (Apus apus) and by Passer spp., accounting for 53 and 25%, respectively of 317 identified prey items. The local Eurasian Hobby population appeared to have adapted fairly well to the intensively managed agroforestry system, with recorded density and productivity in the range reported for other European populations in less intensively cultivated areas. We did not detect any decline in average density and productivity with increasing levels of agricultural change in various European populations. Possible reasons for this species' successful reproduction in modern agricultural landscapes include timing of breeding, tolerance of habitat fragmentation and of human activities near to the nest, tolerance of proximity to neighbors, type of diet, and absence of important predators. |
author2 |
Bogliani, Giuseppe Sergio, F. |
format |
Article in Journal/Newspaper |
author |
BOGLIANI, GIUSEPPE Sergio F. |
author_facet |
BOGLIANI, GIUSEPPE Sergio F. |
author_sort |
BOGLIANI, GIUSEPPE |
title |
Eurasian hobby density, nest area occupancy, diet, and productivity in rlation to intensive agriculture |
title_short |
Eurasian hobby density, nest area occupancy, diet, and productivity in rlation to intensive agriculture |
title_full |
Eurasian hobby density, nest area occupancy, diet, and productivity in rlation to intensive agriculture |
title_fullStr |
Eurasian hobby density, nest area occupancy, diet, and productivity in rlation to intensive agriculture |
title_full_unstemmed |
Eurasian hobby density, nest area occupancy, diet, and productivity in rlation to intensive agriculture |
title_sort |
eurasian hobby density, nest area occupancy, diet, and productivity in rlation to intensive agriculture |
publishDate |
1999 |
url |
http://hdl.handle.net/11571/1805 https://doi.org/10.2307/1370068 |
genre |
Apus apus |
genre_facet |
Apus apus |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000083884100010 volume:101 issue:4 firstpage:806 lastpage:817 numberofpages:12 journal:CONDOR http://hdl.handle.net/11571/1805 doi:10.2307/1370068 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-0032737945 |
op_doi |
https://doi.org/10.2307/1370068 |
container_title |
The Condor |
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101 |
container_issue |
4 |
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806 |
op_container_end_page |
817 |
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