Conservation measures for the Caspian Tern Hydroprogne caspia at the largest colony in Sweden

Ulrik Lötberg; Natalie Isaksson; Lennart Söderlund; Susanne Åkesson

doi:10.34080/os.v32.22569

Författare

Ulrik Lötberg BirdLife Sweden https://orcid.org/0000-0002-6945-0873
Natalie Isaksson Environmental Research Institute, North Highland College, University of the Highlands and Islands https://orcid.org/0000-0002-1222-6897
Lennart Söderlund
Susanne Åkesson Centre for Animal Movement Research, Department of Biology, Lund University https://orcid.org/0000-0001-9039-2180

DOI:

https://doi.org/10.34080/os.v32.22569

Nyckelord:

Östersjön, häckningsplats, åtgärdsprogram, predation, restaurering, havsfågel, inventering

Abstract

We present conservation actions during 2007–2020 as part of the national Caspian Tern Hydroprogne caspia species action plan at Stenarna in the Björn archipelago, Uppland, the largest colony in Sweden. We applied a combination of monitoring, research, and management measures conducted within an adaptive approach framework, using both established and novel techniques. The implementation of conservation measures led to increased breeding success, from 0 fledglings per pair in 2007 to 1.3 in 2020. A surveillance video camera installed in 2009 aided in monitoring efforts and also revealed predation by Herring Gull Larus argentatus and White-tailed Eagle Haliaeetus albicilla, leading to species-specific control strategies. Management of the island and surrounding archipelago, including hunting of invasive American mink Mustela vison, vegetation removal, and habitat restoration after a severe storm, have also been instrumental to the success of the project. Implementation of projects such as this have the potential to improve conditions for continued viability of endangered species in a changing world and are likely to be useful to other conservation practitioners.

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Referenser

Amcoff M. 2001. Minkens inverkan på kustfågelbestånden i Uppsala läns skärgård. Upplandsstif-telsen Stencil 22.

Andersson Å. 1992. Sjöfågelbeståndens utveckling i Bullerö skärgård efter invanding av mink. Ornis Svecica 2: 107–118. https://doi.org/10.34080/os.v2.23053

Beal M, Byholm P, Lötberg U, Evans TJ, Shiomi K & Åkesson S. 2022. Habitat selection and forag-ing site fidelity in Caspian Terns (Hydroprogne caspia) breeding in the Baltic Sea. Ornis Fennica 98: 128–141. https://doi.org/10.51812/of.113445 DOI: https://doi.org/10.51812/of.113445

Bergman G. 1953. Verhalten und Biologie der Raubseeschwalbe. Acta Zoologica Fennica 77: 1–50.

BirdLife International. 2021. Species factsheet: Hydroprogne caspia. http://datazone.birdlife.org/species/factsheet/caspian-tern-hydroprogne-caspia

Bonesi L, Macdonald DW. 2004. Impact of released Eurasian otters on a population of American mink: A test using an experimental approach. Oikos 106: 9–18. https://doi.org/10.1111/j.0030-1299.2004.13138.x DOI: https://doi.org/10.1111/j.0030-1299.2004.13138.x

Burger AE & Lawrence AD. 2000. Seabird Monitoring Techniqes. In Status and Conservation of West Indian Seabirds (Schreiber EA & Lee DS, eds). Society of Carribean Ornithology.

Byholm P, Below A & Piha M. 2019. 2020: History, conservation status and new information on the winter quarters of Finnish Caspian Terns (in Finnish with English summary). Linnut-vuosikirja 2019: 72–77.

Collar S, Roby DD & Lyons DE. 2017. Top-Down and Bottom-Up Interactions Influence Fledging Success at North America’s Largest Colony of Caspian Terns (Hydroprogne caspia). Estu-aries and Coasts 40: 1808–1818. https://doi.org/10.1007/s12237-017-0238-x DOI: https://doi.org/10.1007/s12237-017-0238-x

Conservation Measures Partnership, 2016. CMP Conservation Actions Classification v 2.0. https://docs.google.com/spreadsheets/d/1i25GTaEA80HwMvsTiYkdOoXRPWiVPZ5l6KioWx9g2zM/

Croxall JP, Butchart SHM, Lascelles B, Stattersfield AJ, Sullivan B, Symes A & Taylor P. 2012. Sea-bird conservation status, threats and priority actions: a global assessment. Bird Conser-vation International 22: 1–34. https://doi.org/10.1017/S0959270912000020 DOI: https://doi.org/10.1017/S0959270912000020

Cuthbert FJ. 1985. Intraseasonal Movement between Colony Sites by Caspian Terns in the Great Lakes. Wilson Bulletin 97: 502–510. https://www.jstor.org/stable/4162144

Cuthbert FJ. 1988. Reproductive Success and Colony-Site Tenacity in Caspian Terns. Auk 105: 339–344. https://doi.org/10.2307/4087499 DOI: https://doi.org/10.2307/4087499

Dias MP, Martin R, Pearmain EJ, Burfield IJ, Small C, Phillips RA, Yates O, Lascelles B, Borboroglu PG & Croxall JP. 2019. Threats to seabirds: A global assessment. Biological Conserva-tion 237: 525–537. https://doi.org/10.1016/j.biocon.2019.06.033 DOI: https://doi.org/10.1016/j.biocon.2019.06.033

European Parliament. 2009. Directive 2009/147/EC of the European Parliament and of the Council of 30 November 2009 on the conservation of wild birds (codified version). Of-ficial Journal of the European Union L 20 53: 7–25. https://doi.org/10.3000/17252555.L_2010.020.eng

Gill RE. 2008. Caspian Terns nesting in Alaska: prophecy, serendipity, and implications for re-gional climate-related change. Western Birds 39: 97–100.

Hario M, Kastepöld T, Kilpi M, Staav R & Stjernberg T. 1987. Status of Caspian Terns Sterna cas-pia in the Baltic. Ornis Fennica 64: 154–157. https://lintulehti.birdlife.fi:8443/pdf/artikkelit/647/tiedosto/of_64_154-157_artikkelit_647.pdf

Hentati-Sundberg J, Berglund PA, Hejdström A & Olsson O. 2021. COVID-19 lockdown reveals tourists as seabird guardians. Biological Conservation 254: 17–20. https://doi.org/10.1016/j.biocon.2021.108950 DOI: https://doi.org/10.1016/j.biocon.2021.108950

Herrmann C. 2009. The so-called “gull problem” in Germany in the 20th century: historical de-velopment in Germany and population control on the Baltic Sea coast of the GDR. Vo-gelwelt 130: 25–47.

Hodgson JC, Baylis SM, Mott R, Herrod A & Clarke RH. 2016. Precision wildlife monitoring using unmanned aerial vehicles. Scientific Reports 6: 22574. https://doi.org/10.1038/srep22574 DOI: https://doi.org/10.1038/srep22574

Hutchinson AE. 1980. Estimating numbers of colonial nesting seabirds: A comparison of tech-niques. Proceedings of the Colonial Waterbird Group 3: 235–244. https://www.jstor.org/stable/4626718

IPCC. 2012. Managing the Risks of Extreme Events and Disasters to Advance Climate Change Ad-aptation. Special Report of Working Groups I and II of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, UK and New York, NY, USA. https://doi.org/10.1017/CBO9781139177245.009 DOI: https://doi.org/10.1017/CBO9781139177245.009

IPCC. 2021. Climate change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, UK. https://doi.org/10.1080/03736245.2010.480842 DOI: https://doi.org/10.1080/03736245.2010.480842

Länsstyrelsen Uppsala Län. 2018. Björns skärgård. Naturreservat. https://www.lansstyrelsen.se/uppsala/besoksmal/naturreservat/bjorns-skargard.html

Lötberg U, Isaksson N & Åkesson S. 2020. The Caspian terns of Fågelsundet – a report on Caspian terns in Björns archipelago. BirdLife Sweden, Mörbylånga, Sweden. https://cdn.birdlife.se/wp-content/uploads/2020/11/Report_Caspian_terns_of-Fagelsundet.pdf

Marra PP, Cohen EB, Loss SR, Rutter JE & Tonra CM. 2015. A call for full annual cycle research in animal ecology. Biology Letters 11: 20150552. https://doi.org/10.1098/rsbl.2015.0552 DOI: https://doi.org/10.1098/rsbl.2015.0552

Morris RD, Weseloh DV, Cuthbert FJ, Pekarik C, Wires LR & Harper L. 2010. Distribution and abundance of nesting common and Caspian terns on the North American Great Lakes, 1976 to 1999 . Journal of Great Lakes Research 36: 44–56. https://doi.org/10.1016/j.jglr.2009.09.008 DOI: https://doi.org/10.1016/j.jglr.2009.09.008

Morris RD, Weseloh DV & Shutt JL. 2003. Distribution and Abundance of Nesting Pairs of Her-ring Gulls (Larus argentatus) on the North American Great Lakes, 1976 to 2000 . Journal of Great Lakes Research 29: 400–426. https://doi.org/10.1016/S0380-1330(03)70447-X DOI: https://doi.org/10.1016/S0380-1330(03)70447-X

Naturhistoriska Riksmuseet. 2021. Ringmärkningscentralen. https://www.nrm.se/forskningochsamlingar/miljoforskningochovervakning/ringmarkningscentralen.214.html (accessed 15 February 2021)

Quinn JS, Morris RD, Blokpoel H, Weseloh DV & Ewins PJ. 1996. Design and management of bird nesting habitat: Tactics for conserving colonial waterbird biodiversity on artificial is-lands in Hamilton Harbour, Ontario. Canadian Journal of Fisheries and Aquatic Sciences 53: 45–57. https://doi.org/10.1139/cjfas-53-s1-45 DOI: https://doi.org/10.1139/f95-260

Quinn JS & Sirdevan J. 1998. Experimental measurement of nesting substrate preference in Caspian terns, Sterna caspia, and the successful colonisation of human constructed is-lands. Biological Conservation 85: 63–68. https://doi.org/10.1016/S0006-3207(97)00142-0 DOI: https://doi.org/10.1016/S0006-3207(97)00142-0

Roos S & Amcoff M. 2010. Fågelfaunans utveckling i Uppsala läns skärgård efter införandet av jakt på mink. Länsstyrelsens Meddelandeserie 2010: 04. Naturmiljöenheten, Länssty-relsen Uppsala län. http://www.upplandsstiftelsen.se/UserFiles/Archive/622/LstC4_2010Minkens_paverkan.pdf

Rueda-Uribe C, Lötberg U, Ericsson M, Tesson SVM & Åkesson S. 2021. First tracking of declining Caspian terns Hydroprogne caspia breeding in the Baltic Sea reveals high migratory dispersion and disjunct annual ranges as obstacles to effective conservation. Journal of Avian Biology 52: e02743. https://doi.org/10.1111/jav.02743 DOI: https://doi.org/10.1111/jav.02743

Salafsky N, Margoluis R, Redford KH & Robinson JG. 2002. Improving the practice of conserva-tion: A conceptual framework and research agenda for conservation science. Conserva-tion Biology 16: 1469–1479. https://doi.org/10.1046/j.1523-1739.2002.01232.x DOI: https://doi.org/10.1046/j.1523-1739.2002.01232.x

Salafsky N, Salzer D, Stattersfield AJ, Hilton-Taylor C, Neugarten R, Butchart SHM, Collen B, Cox N, Master LL, O’Connor S & Wilkie D. 2008. A standard lexicon for biodiversity conser-vation: Unified classifications of threats and actions. Conservation Biology 22: 897–911. https://doi.org/10.1111/j.1523-1739.2008.00937.x DOI: https://doi.org/10.1111/j.1523-1739.2008.00937.x

Scopel LC & Diamond AW. 2017. The case for lethal control of gulls on seabird colonies. Journal of Wildlife Management 81: 572–580. https://doi.org/10.1002/jwmg.21233 DOI: https://doi.org/10.1002/jwmg.21233

Shiomi K, Lötberg U & Åkesson S. 2015. Seasonal distributions of Caspian Terns Hydroprogne caspia from Swedish populations, revealed by recoveries and resightings of ringed birds. Ringing & Migration 30: 22–36. https://doi.org/10.1080/03078698.2015.1059637 DOI: https://doi.org/10.1080/03078698.2015.1059637

SLU Artdatabanken. 2020. Artfakta. Skräntärna Hydroprogne caspia. https://artfakta.se/naturvard/taxon/hydroprogne-caspia-100134 (accessed 13 February 2021)

Staav R, Almkvist B & Hedgren S. 1972. Skräntärnan Hydroprogne tschegrava i Sverige 1971 . Vår Fågelvärld 31: 241–246.

Staav R. 1979. Dispersal of Caspian Terns Sterna caspia in the Baltic. Ornis Fennica 56: 13–17. https://lintulehti.birdlife.fi:8443/pdf/artikkelit/896/tiedosto/of_56_13-17_artikkelit_896.pdf

Staav R. 2005. Skräntärnan i Sverige: Status och Reproduktion 2001–2004. Vår Fågelvärld 44: 34–41.

Staav R. 2007. Åtgärdsprogram för skräntärna 2007–2011. Naturvårdsverket, rapport 5702 . https://www.naturvardsverket.se/globalassets/media/publikationer-pdf/5700/978-91-620-5702-2.pdf

Suzuki Y, Bishop MA, Roby DD & Bixler KS. 2019. Colony Connectivity and the Rapid Growth of a Caspian Tern (Hydroprogne caspia) Colony on Alaska’s Copper River Delta, USA. Water-birds 42: 1–7. https://doi.org/10.1675/063.042.0101 DOI: https://doi.org/10.1675/063.042.0101

Svensson S, Svensson M & Tjernberg M. 1999. Svensk Fågelatlas. Vår Fågelvärld, Supplement 31. Sveriges Ornitologiska Förening, Halmstad.

Sveriges Riksdag. 2007. Artskyddsförordning (2007:845). https://www.riksdagen.se/sv/dokument-lagar/dokument/svensk-forfattningssamling/artskyddsforordning-2007845_sfs-2007-845

Väisänen RA. 1973. Establishment of Colonies of Caspian Tern Hydroprogne caspia by Deserting Flights in the Northern Gulf of Bothnia. Ornis Scandinavica 4: 47–53. https://doi.org/10.2307/3676289 DOI: https://doi.org/10.2307/3676289

Wang Z, Griffin AS, Lucas A & Wong KC. 2019. Psychological warfare in vineyard: Using drones and bird psychology to control bird damage to wine grapes. Crop Protection 120: 163–170. https://doi.org/10.1016/j.cropro.2019.02.025 DOI: https://doi.org/10.1016/j.cropro.2019.02.025

Wires LR & Cuthbert FJ. 2000. Trends in Caspian Tern Numbers and Distribution in North Amer-ica: A Review. Waterbirds 23: 388–404. https://doi.org/10.2307/1522176 DOI: https://doi.org/10.2307/1522176