University of Groningen Arabian muds Bom, Roeland Andreas IMPORTANT NOTE: You are advised to consult the publisher's version (publisher's PDF) if you wish to cite from it. Please check the document version below. Document Version Publisher's PDF, also known as Version of record Publication date: 2018 Link to publication in University of Groningen/UMCG research database Citation for published version (APA): Bom, R. A. (2018). Arabian muds: A 21st-century natural history on crab plovers, crabs and molluscs. [Groningen]: Rijksuniversiteit Groningen. Copyright Other than for strictly personal use, it is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license (like Creative Commons). Take-down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Downloaded from the University of Groningen/UMCG research database (Pure): http://www.rug.nl/research/portal. For technical reasons the number of authors shown on this cover page is limited to 10 maximum. Download date: 08-03-2019
Arabian Muds A 21 st -century natural history on crab plovers, crabs and molluscs
The research presented in this thesis was conducted at the Department of Coastal Systems at the NIOZ Royal Netherlands Institute for Sea Research, t Horntje, (Texel), The Netherlands, according to the requirements of the Graduate School of Science (Faculty of Mathematics and Natural Sciences, University of Groningen). This research was funded by NWO ALW Open Programme grant 821.01.001 grant awarded to Jan A. van Gils and The Research Council (TRC) of the Sultanate of Oman ORG/EBR/12/002 grant awarded to Andy Kwarteng. The printing was supported by NIOZ and the University of Groningen (RUG) The preferred citation of this thesis is: Bom, R.A. (2018) Arabian muds: A 21 st -century natural history on crab plovers, crabs and molluscs. PhD thesis, University of Groningen, Groningen, The Netherlands. Lay-out and figures: Dick Visser Cover drawing and lay-out: Maaike Ebbinge Photographs: Khalid Al-Nasrallah (pp. 190, 196, 197, 200), Abdullah Al Subhi, MECA (pp. 8), Sarah Godin-Blouin (pp. 64), Roeland Bom (pp. 114, 139, 198, 222, 260), Jimmy de Fouw (pp. 26a, 68), Symen Deuzeman (pp. 246), Maaike Ebbinge (pp. 26b), Bram Feij (pp. 127a), Thijs Fijen (pp. 213), Jan van de Kam (pp. 16, 40, 50, 60, 75, 90, 94, 104, 105 (field pictures), 106, 122, 127b, 144, 148, 158, 208, 216, 260), Laurens Steijn (pp. 14) Printed by: Ipskamp Printing Enschede, The Netherlands ISBN: 978-94-028-1180-3 ISBN: 978-94-028-1181-0 (electronic version) R.A. Bom (Roeland.bom@gmail.com)
Arabian Muds A 21 st -century natural history on crab plovers, crabs and molluscs Proefschrift ter verkrijging van de graad van doctor aan de Rijksuniversiteit Groningen op gezag van de rector magnificus prof. dr. E. Sterken en volgens besluit van het College voor Promoties. De openbare verdediging zal plaatsvinden op vrijdag 12 oktober 2018 om 11:00 uur door Roeland Andreas Bom geboren op 27 mei 1983 te Zeist
Promotores Prof. T. Piersma Prof. W. Bouten Copromotor Dr. J.A. van Gils Beoordelingscommissie Prof. J.M. Tinbergen Prof. G. Vermeij Prof. M. Fasola
Contents ChAPTER 1 General Introduction 9 R.A. Bom ChAPTER 2 Food web consequences of an evolutionary arms race: Molluscs subject to crab 17 predation on intertidal mudflats in Oman are unavailable to shorebirds R.A. Bom, J. de Fouw, R.H.G. Klaassen, T. Piersma, M.S.S. Lavaleye, B.J. Ens, T. Oudman & J.A. van Gils Published in 2018 in Journal of Biogeography, 45, 342 354 ChAPTER 3 The role of the intertidal mudflats of Barr Al hikman, Sultanate of Oman, 41 as feeding, reproduction and nursery grounds for brachyuran crabs R.A. Bom, J.A. van Gils, K. Molenaar, A.Y. Kwarteng, R. Victor & E.O. Folmer Manuscript BOx A Bathymetry map of Barr Al hikman 58 ChAPTER 4 Simple and complex burrow architecture in two Macrophthalmus species 61 on the intertidal mudflats of Barr Al hikman, Sultanate of Oman R.A. Bom & M. Ebbinge Manuscript ChAPTER 5 Barr Al hikman, a major shorebird hotspot within the Asian East African 69 flyway: results of three winter surveys J. de Fouw, A.W. Thorpe, R.A. Bom, S. de Bie, C.J. Camphuysen, B. Etheridge, W. Hagemeijer, L. Hofstee, T. Jager, L. Kelder, R. Kleefstra, M. Kersten, A. al Kiyumi, A. Nagy, & R.H.G. Klaassen Published in 2017 in Wader Study 124, 10 25 ChAPTER 6 Demography of a stable population of crab plovers wintering in Oman 91 R.A. Bom, J.A. van Gils, K. Oosterbeek, S. Deuzeman, J. de Fouw, A.Y. Kwarteng, & R. Kentie Published in 2018 in Journal of Ornithology 159, 527 525 ChAPTER 7 Stomach fullness shapes prey choice decisions in crab plovers (Dromas ardeola) 107 R. Gommer, R.A. Bom, T.P.M. Fijen & J.A. van Gils Published in 2018 in Plos One 13, e0194824 ChAPTER 8 Wait a minute? hiding behaviour of burrowing crabs and an oversized bill 123 explain why crab plovers prefer armoured swimming crabs R.A. Bom, T. Piersma, T. P.M. Fijen & J. A. van Gils Manuscript
ChAPTER 9 Optimizing acceleration-based ethograms: the use of variable-time versus 145 fixed-time segmentation R.A. Bom, W. Bouten, T. Piersma, K. Oosterbeek & J.A. van Gils Published in 2014 in Movement Ecology 2:6 ChAPTER 10 Movement ecology of crab plovers in a tidal system: exploring the tide 159 or the tide line? R.A. Bom, T. Piersma, A.Y. Kwarteng, W. Bouten & J.A. van Gils Manuscript BOx B Migration of crab plover wintering at Barr Al hikman 186 ChAPTER 11 Counts and breeding biology of crab plovers Dromas ardeola on Bubiyan 191 Islands, Kuwait, in 2012 2014 R.A. Bom & Khalid al-nasrallah Published in Wader Study in 2015 122, 212 220 BOx C Provisioning by crab plovers 204 ChAPTER 12 General Discussion 209 R.A. Bom References 221 Author affiliations and addresses 242 List of publications 245 Summary / Samenvatting / 247 Acknowledgements / Dankwoord 261