Home About Browse Search
Svenska


Ranging behaviour and habitat use in Montagu's Harrier Circus pygargus in extensive farmland of Eastern Poland

Krupinski, Dominik and Kotowska, Dorota and Rodriguez Recio, Mariano and Zmihorski, Michal and Obłoza, Przemysław and Mirski, Pawel (2021). Ranging behaviour and habitat use in Montagu's Harrier Circus pygargus in extensive farmland of Eastern Poland. Journal of Ornithology. 162 , 325-337
[Research article]

[img] PDF
5MB

Abstract

Agriculture intensification drives changes in bird populations but also in the space use by farmland species. Agriculture in Eastern Europe still follows an extensive farming model, but due to policy shifts aimed at rural restructuring and implementation of government subsidies for farmers, it is being rapidly intensified. Here, we aimed to document the ranging behaviour and habitat use of a declining farmland bird of prey-Montagu's Harrier-and to compare it to findings from Western Europe. In 2011-2018, 50 individuals were followed with GPS loggers in Eastern Poland to study species spatial ecology. We found home ranges (kernel 90%) to be considerably large: 67.3 (+/- 42.3) km(2) in case of males, but only 4.9 (+/- 6.1) km(2) in females. Home ranges overlapped by 40%, on average, with other males in colonies and by 61%, on average, between consecutive breeding seasons of a particular male. The average daily distance travelled by males and females reached, respectively, 94.5 and 45.3 km, covering a daily home range of 32.3 and 3.1 km(2). Individuals foraged up to 35 km from nests (3.5 km on average). Daily distance travelled and daily home ranges varied across the breeding season, in case of females being shortest in July, but sharply increasing in August. Also, individuals with breeding success had higher daily distance travelled but smaller daily home ranges. Average harriers' distance to nest was generally increasing over the season, but was also changing over time of day: birds were closest to nest during night time, but at the end of the season, males roosted up to 16 km from the nest. While foraging males slightly preferred grasslands, higher elevation and smaller land-use patches, they avoided slopes and proximity of roads. We conclude that the surprisingly large home ranges of breeding harriers may suggest reduced prey availability or high fragmentation of hunting areas, both driving birds to utilise large areas and potentially contributing to population decline.

Authors/Creators:Krupinski, Dominik and Kotowska, Dorota and Rodriguez Recio, Mariano and Zmihorski, Michal and Obłoza, Przemysław and Mirski, Pawel
Title:Ranging behaviour and habitat use in Montagu's Harrier Circus pygargus in extensive farmland of Eastern Poland
Series Name/Journal:Journal of Ornithology
Year of publishing :2021
Volume:162
Page range:325-337
Number of Pages:13
Publisher:SPRINGER HEIDELBERG
ISSN:2193-7192
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:Home range, Movement ecology, Agricultural landscape, Circus pygargus
URN:NBN:urn:nbn:se:slu:epsilon-p-109395
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-109395
Additional ID:
Type of IDID
DOI10.1007/s10336-020-01837-x
Web of Science (WoS)000591140800001
ID Code:23412
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:04 May 2021 10:23
Metadata Last Modified:04 May 2021 10:31

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits