University of Groningen
Migrants in double jeopardy
Schlaich, Almut
DOI:
10.33612/diss.97354411
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Publication date:
2019
Link to publication in University of Groningen/UMCG research database
Citation for published version (APA):
Schlaich, A. (2019). Migrants in double jeopardy: Ecology of Montagu's Harriers on breeding and wintering
grounds. Rijksuniversiteit Groningen. https://doi.org/10.33612/diss.97354411
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Migrants in double jeopardy
Ecology of Montagu's Harriers on breeding and wintering grounds
The research presented in this thesis was carried out at the Dutch Montagu’s Harrier Foundation (Grauwe Kiekendief Kenniscentrum Akkervogels), the Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, The Netherlands, and the Centre d'Etudes Biologiques de Chizé, UMR 7372, CNRS & Université de La Rochelle, France.
This PhD was funded by the Ubbo Emmius Fund and the Dutch Montagu’s Harrier Foundation. The work was financially supported by SchureBeijerinckPoppingFonds, Dobberke Stichting, Deutsche Ornithologen Gesellschaft (DOG), Huib Kluijver Fonds, KNAW Fonds Ecologie, Triodos Foundation, Prins Bernhard Cultuurfonds, the Ministry of Economic Affairs (EZ) and the province of Groningen.
Printing of this thesis was supported by the University of Groningen (RuG) and the Dutch Montagu’s Harrier Foundation.
COLOFON
Layout: Dick Visser
Photographs: Ben Koks: cover, chapters 1,2,3,4,5,8, samenvatting, summary, acknowledgements; Harold van der Meer: chapter 6, references; Hans Hut: chapter 7
Printed by: GVO drukkers & vormgevers B.V., Ede
ISBN: 9789403420257
ISBN: 9789403420240 (electronic version)
Migrants in double jeopardy
Ecology of Montagu's Harriers on breeding and wintering grounds
PhD thesis
to obtain the degree of PhD at the
University of Groningen on the authority of the
Rector Magnificus prof. C. Wijmenga
and in accordance with
the decision by the College of Deans.
This thesis will be defended in public on
Friday 11 October 2019 at 16:15 hours
by
Almut Ellinor Schlaich
born on 21 November 1985
in Freudenstadt, Germany
Supervisors
Prof. C. Both
Prof. V. Bretagnolle
Co-supervisor
Dr. R.H.G. Klaassen
Assessment Committee
Prof. T. Piersma
Prof. F. Bairlein
Prof. W. Cresswell
Contents
Chapter 1 General Introduction 7 Chapter 2 On the wintering ecology of Montagu’s Harriers in West Africa: a detailed 25
description of site use throughout the winter in relation to varying annual environmental conditions
Chapter 3 How individual Montagu’s Harriers cope with Moreau’s Paradox during 63 the Sahelian winter
Chapter 4 Rare case of an adult male Montagu’s Harrier Circus pygargus over‐summering 87 in West Africa, as revealed by GPS tracking
Chapter 5 A circannual perspective on daily and total flight distances in a long‐distance 99 migratory raptor, the Montagu’s Harrier, Circus pygargus
Chapter 6 Individual variation in activity and home range size reflects different 113 landscape use strategies in a central place foraging raptor bird
Chapter 7 Testing a novel agri‐environmental scheme based on the ecology of the target 135 species, Montagu’s Harrier Circus pygargus
Chapter 8 Synthesis 153 References 169 Samenvatting 187 Summary/Résumé/Zusammenfassung 199 Acknowledgements 213 Affiliations of co‐authors 221 List of publications 222
