Hayalet yengeç Ocypode cursor (Linnaeus, 1758) yuvalarının insan etkileri altında morfolojik değişimleri

Mustafa Gül

doi:10.12714/egejfas.39.2.08

EN TR

Variation in burrow morphology of ghost crab Ocypode cursor (Linnaeus, 1758) under human influence

Abstract

Ghost crabs are common bioindicator species for human disturbance on sandy shores. Ghost crabs often alter their population dynamics under human disturbance. Ghost crabs, further, alter their burrowing behavior under human influence, however, these changes are not well known on the Turkish coast of the Mediterranean Sea. Therefore, burrowing morphology of Ocypode cursor at two sites that differ in the degree of human disturbance was compared. Ghost crabs created smaller, steeper and simpler burrows at the site under higher human disturbance compared to the crabs living at the sites with lower human influence. Further, there was no difference in the ghost crab burrow depth and the frequency of existence of chambers between sites. Moreover, the results of this study revealed that larger crabs preferred higher parts of the beach at both sites, suggesting that this is common behavior for the populations of O. cursor. Consequently, the results of this study emphasized that O. cursor alter their burrowing morphology and characteristics under human disturbance besides their population demographics; suggesting that studies that focus on the use of ghost crabs for human disturbance should include burrow morphology in their assessments.

Keywords

Hayalet yengeç Ocypode cursor (Linnaeus, 1758) yuvalarının insan etkileri altında morfolojik değişimleri

Öz

Hayalet yengeçler, kumsallarda insan etkilerinin tespiti için sıklıkla kullanılan biyoindikatör türlerdendir. Hayalet yengeçler, insan etkileri altında popülasyon dinamiklerinde yuvalama davranışlarında değişiklikler gösterirler, fakat bu değişikliklerin nasıl ve ne şekilde oldukları Türkiye’nin Akdeniz kıyılarında yeterince bilinmemektedir. Bu nedenle, insan baskısı açısından fark gösteren iki farklı alanda Ocypode cursor’ın yuva morfolojileri incelenmiştir. Çalışma neticesinde insan etkilerinin yoğun olduğu bölgelerde yaşayan yengeçlerin, düşük insan etkileri altında yaşayan yengeçlere kıyasla daha küçük, daha dik ve daha basit yuvalar oluşturdukları ortaya çıkmıştır. Bununla birlikte, çalışma alanları arasında yengeç yuvalarının derinliği ve hazneye sahip olma sıklıkları açısından bir fark görülmemiştir. Ek olarak, her iki çalışma bölgesinde de büyük yengeçlerin kumsalın suya daha uzak üst bölgelerine, küçük yengeçlerin ise denize yakın bölgelerine yuvaladıkları ve bu tabakalaşmanın O. cursor için genel bir davranış olduğu anlaşılmıştır. Çalışma neticesinde, O. cursor’ın insan etkileri altındayken popülasyon dinamiklerinin yanı sıra yuva morfolojilerinde ve özelliklerinde de değişiklikler yaptıkları ve hayalet yengeçleri insan etkilerinin tespiti için kullanacak olan çalışmaların bu yuva özelliklerini de göz önüne almaları gerektiği sonucuna ulaşılmıştır.

Anahtar Kelimeler

Thanks

Arazi çalışması sırasındaki yardımlarından Esra Erdil Gül’e teşekkürlerimi sunarım.

References

Anadolu Ajansı (2021, Haziran). Kısıtlama sınırlamalarının kaldırılması haberi, Mayıs 2020 [Basin bülteni]. Erişim adresi https://www.aa.com.tr/tr/turkiye/cumhurbaskani-erdogan-sehirlerarasi-seyahat-sinirlamasi-1-hazirandan-itibaren-tamamiyla-kaldirilmistir/1856552
Bal, M., Yapan, B. Ç., & Özkan, K. (2021). The response of Tufted Ghost Crab, Ocypode cursor, populations to recreational activities in an urbanized coast with small-scale protected zones. Zoology in the Middle East, 67(1), 32- 41. DOI: 10.1080/09397140.2021.1877383
Carignan, V., & Villard, M.A. (2002). Selecting indicator species to monitor ecological integrity: A review. Environmental Monitoring and Assessment, 78(1), 45–61.
Chan, B.K.K., Chan, K.K.Y., & Leung, P.C.M. (2006). Burrow architecture of ghost crab Ocypode ceratophthalma on a sandy shore in Hong Kong. Hydrobiologia, 560(1), 43- 49. DOI: 10.1007/s10750-005-1088-2
Costa, L.L., Soares-Gomes, A., & Zalmon, I.R. (2021). Burrow occupation rates and spatial distribution within habitat of the ghost crab Ocypode quadrata (Fabricius, 1787): Implications for impact assessments. Regional Studies in Marine Science, 44, 101699. DOI:10.1016/j.rsma.2021.101699
Fisher, J.B., & Tevesz, M.J.S. (1979). Within-habitat spatial patterns of Ocypode quadrata (Fabricius) (Decapoda, Brachyura). Crustaceana, 5S, 31–36.
Gül, M.R., & Griffen, B.D. (2018). Impacts of human disturbance on ghost crab burrow morphology and distribution on sandy shores. Plos One, 13(12), e0209977. DOI: 10.1371/journal.pone.0209977
Gül, M.R., & Griffen, B.D. (2019a). Burrowing behavior and burrowing energetics of a bioindicator under human disturbance. Ecology and Evolution, 9(24), 14205-14216. DOI: 10.1002/ece3.5853

Gül, M.R., & Griffen, B.D. (2019b). Combined impacts of natural and anthropogenic disturbances on the bioindicator Ocypode quadrata (Fabricius, 1787). Journal of Experimental Marine Biology and Ecology, 519, 151185. DOI: 10.1016/j.jembe.2019.151185
Gül, M.R., & Griffen, B.D. (2020a). Changes in claw morphology of a bioindicator species across habitats that differ in human disturbance. Hydrobiologia, 847(14), 3025- 3037. DOI: 10.1007/s10750-020-04308-9
Gül, M.R., & Griffen, B.D. (2020b). Diet, energy storage, and reproductive condition in a bioindicator species across beaches with different levels of human disturbance. Ecological Indicators, 117, 106636. DOI: 10.1016/j.ecolind.2020.106636
Hartnoll, R.G. (1969). Mating in the Brachyura. Crustaceana, 16(2), 161–181.
Lucrezi, S., & Schlacher, T.A. (2014). The ecology of ghost crabs- a review. Oceanography and Marine Biology- Annual Review, 52:201- 256.
Morrow, K., Bell, S.S., & Tewfik, A. (2014). Variation in ghost crab trophic links on sandy beaches. Marine Ecology Progress Series, 502, 197- 206. DOI: 10.3354/meps10728
Packard, G.C., & Boardman, T.J. (1999). The use of percentages and size-specific indices to normalize physiological data for variation in body size: wasted time, wasted effort? Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 122, 37- 44. DOI: 10.1016/S1095-6433(98)10170-8
Pombo, M., & Turra, A. (2019). The burrow resetting method, an easy and effective approach to improve indirect ghost-crab population assessments. Ecological Indicators, 104, 422- 428. DOI: 10.1016/j.ecolind.2019.05.010
Sakai, K., & Türkay, M. (2013). Revision of the genus Ocypode with the description of a new genus, Hoplocypode (Crustacea: Decapoda: Brachyura). Memoirs of the Queensland Museum, 56(2),665–793.
Schlacher, T.A., Lucrezi, S., Connolly, R.M., Peterson, C.H., Gilby, B.L., Maslo, B., Olds, A.D., Walker, S.J., Leon, J.X., Huijbers, C.M., Weston, M.A., Turra, A., Hyndes, G.A., Holt, R.A., & Schoeman, D.S. (2016). Human threats to sandy beaches: A meta-analysis of ghost crabs illustrates global anthropogenic impacts. Estuarine, Coastal, and Shelf Science, 169, 56- 73. DOI: 10.1016/j.ecss.2015.11.025
Schlacher, T.A., & Lucrezi, S. (2010). Experimental evidence that vehicle traffic changes burrow architecture and reduces population density of ghost crabs on sandy beaches. Vie Milieu- Life Environ, 60, 313–320.
Siddig, A.A.H., Ellison, A.M., Ochs, A., Villar-Leeman, C., & Lau, M.K. (2016). How do ecologists select and use indicator species to monitor ecological change? Insights from 14 years of publication in ecological indicators. Ecological Indicators, 60, 223–230. DOI: 10.1016/j.ecolind.2015.06.036
Solomon, M., Jaarsveld, A.S.V., Biggs, H.C., & Knight. N.H. (2003). Conservation targets for viable species assemblages? Biodiversity and Conservation, 12, 2435–2441. Spellerberg, I. (2005). Monitoring ecological change (2nd ed.). Cambridge, UK: Cambridge University Press.
Strachan, P.H., Smith, R.C., Hamilton, D.A.B., Taylor, A.C., & Atkinson, R.J.A. (1999). Studies on the ecology and behaviour of the ghost crab, Ocypode cursor (L.) in northern Cyprus. Scientia Marina, 63, 51–60.
Tewfik, A., Bell, S.S., McCann, K.S., & Morrow, K. (2016). Predator diet and trophic position modified with altered habitat morphology. PLoS ONE, 11(1), e0147759. DOI: 10.1371/journal.pone.0147759
Tiralongo, F., Messina, G., Marino, S., Bellomo, S., Vanadia, A., Borzì, L., Tibullo, D., Di Stefano, A., & Lombardo, B. M. (2020). Abundance, distribution and ecology of the tufted ghost crab Ocypode cursor (Linnaeus, 1758) (Crustacea: Ocypodidae) from a recently colonized urban sandy beach, and new records from Sicily (central Mediterranean Sea). Journal of Sea Research, 156, 101832. DOI:10.1016/j.seares.2019.101832
Türeli, C., Duysak, Ö., Akamca, E., & Kiyagi, V. (2009). Spatial distribution and activity pattern of the ghost crab, Ocypode cursor (L., 1758) in Yumurtalik Bay, North-Eastern Mediterranean-Turkey. Journal of Animal and Veterinary Advances, 8(1), 165- 171.
Wolcott, T.G. (1976). Uptake of soil capillary water by ghost crabs. Nature, 264, 756–757.

Details

Primary Language

Turkish

Subjects

Ecology , Hydrobiology

Journal Section

Research Article

Authors

Mustafa Gül ^*
0000-0002-2864-273X
Türkiye

Publication Date

June 15, 2022

Submission Date

April 6, 2021

Acceptance Date

September 13, 2021

Published in Issue

Year 2022 Volume: 39 Number: 2

DOI

https://doi.org/10.12714/egejfas.39.2.08

IZ

https://izlik.org/JA94WP88MR

Cite

RIS / Bibtex

APA

Gül, M. (2022). Hayalet yengeç Ocypode cursor (Linnaeus, 1758) yuvalarının insan etkileri altında morfolojik değişimleri. Ege Journal of Fisheries and Aquatic Sciences, 39(2), 145-150. https://doi.org/10.12714/egejfas.39.2.08

Cited By

Combined influence of human disturbance and beach geomorphology on Ghost Crab, Ocypode cursor, burrow density and size in the eastern Mediterranean

Zoology in the Middle East

https://doi.org/10.1080/09397140.2022.2116170