Origins of the Extinct, Subfossil Galápagos Giant Tortoises (Chelonoidis niger) of the Post Office Lava Tube (Inferior) of Floreana Island: Voluntary or Accidental Occupancy?
Keywords:
giant tortoises, lava tubes, subfossils, FloreanaAbstract
The origins of the remains of giant tortoises that have accumulated in vast quantities on the floors of caves in some locations where giant tortoises once lived have received only scant attention to date. The subfossil Galápagos Giant Tortoises (Chelonoidis niger) of Floreana Island’s Post Office lava tube (inferior) are the main focus of this paper with supporting data obtained from other tortoise populations and locations. These remains have historically been explained, if at all, as the result of accidental falls (e.g., via pitfall traps). With the accumulation of greater knowledge of tortoise ecology and paleoecology the likelihood of voluntary cave entry and exit, sometimes by large numbers of giant tortoises (e.g., the Aldabra Atoll Giant Tortoises), also seems plausible. If followed by occasional blockages of exits by geological phenomena such as roof collapse the tortoises could be trapped within as well. An inquiry into the available evidence for the occurrence of both phenomena is the subject of this paper.
References
Bauer, A.M. and Sadlier, R.A. 2000. The Herpetofauna of New Caledonia. Ithaca, New York: Society for the Study of Amphibians and Reptiles. 310 pp.
Bellanger de Lespinay, L.A. 1671. Mémoirs de L. A. Bellanger de Lespinay, Vendômois, sur son Voyage aux Indes Orientales (1670-1675). Vendôme. 219 pp.
Bittel, J. 2016. Cave-dwelling giant tortoises are a big surprise. http://news.nationalgeographic.com/2016/02/160212-caves-giant-tortoises-animals-science-seychelles/ (accessed 2016).
Blake, S., Wikelski, M., Cabrera, F., Guezou, A., Silva, M., Sadeghayobi, E., Yackulic, C.B. and Jaramillo, P. 2012. Seed dispersal by Galápagos tortoises. Journal of Biogeography, 39: 1961-1972.
Blake, S., Yackulic, C.B., Cabrera, F., Tapia, W., Gibbs, J.P., Kümmeth, F. and Wikelski, M. 2013. Vegetation dynamics drive segregation by body size in Galapagos tortoises migrating across altitudinal gradients. Journal of Animal Ecology, 82: 310-321.
Blake, S., Yackulic, C.B., Wikelski, M., Tapia, W., Gibbs, J.P., Deem, S., Villamar, F. and Cabrera, F. 2015. Migration by Galapagos giant tortoises requires landscape-scale conservation efforts. In: Biodiversity and Ecosystem Restoration, Galapagos Report, 144-150.
Bonnet, X., Lagarde, F., Henen, B., Corbin, J., Nagy, K., Naulleau, G., Balhoul, K., Chastel, O., Legrand, A. and Cambag, R. 2001. Sexual dimorphism in steppe tortoises (Testudo horsfieldii): influence of the environment and sexual selection on body shape and mobility. Biological Journal of the Linnean Society, 72: 357-372.
Bour, R. 1981. Histoire de la tortue terrestre de Bourbon. In: Bulletin de I’lle de La Réunion, 358 pp.
Bour, R., Mourer-Chauvire, C. and Ribes, S. 2014. Morphology and palaeontological exploration (until 2000) of the extinct tortoises of the Mascarene islands (sic.). In Western Indian Ocean Tortoises, Ecology, Diversity, Evolution, Conservation, Palaeontology. Gerlach, J. (Eds) Manchester, UK: Siri Scientific Press. pp. 121-202.
Branch W.R. 2012. Tortoises, terrapins and turtles of Africa: Penguin Random House South Africa. 128 pp.
Brown, L.E., Dubois, A. and Shepard, D.B. 2008. Inefficiency and bias of search engines in retrieving references containing scientific names of fossil amphibians. Bulletin of Science, Technology and Society, 28: 279-288.
Caccone, A., Gibbs, J.P., Ketmaier, V., Suatoni, E. and Powell, J.R. 1999. Origin and evolutionary relationships of giant Galápagos tortoises. Proceedings of the National Academy of Sciences USA, 96: 13223-13228.
Caccone, A., Gentile, G., Gibbs, J.P., Fritts, T.H., Snell, H.L., Betts, J. and Powell, J.R. 2002. Phylogeography and history of giant Galápagos tortoises. Evolution, 56: 2052-2066.
Calzolai, R. and Chelazzi, G. 1991. Habitat use in a central Italy population of Testudo hermanni Gmelin (Reptilia Testudinidae). Ethology Ecology and Evolution, 3: 153-166.
Carlquist, S. 1980. Hawaii A Natural History: Geology, Climate, Native Flora and Fauna Above the Shoreline. Lawai, Kauai, Hawaii USA: Pacific Tropical Botanical Garden. 468 pp.
Carr, A.F., Jr. 1952. Handbook of Turtles: The Turtles of the United States, Canada, and Baja California. Ithaca and London: Cornell University Press. 542 pp.
Case, D. 1969. Depth and perception. International Turtle and Tortoise Society Journal, 3: 12-14 and 36.
Cheke, A.S. and Bour, R. 2014. Unequal struggle - how humans displaced the dominance of tortoises in island ecosystems. In Western Indian Ocean Tortoises, Ecology, Diversity, Evolution, Conservation, Paleontology. Gerlach, J. (Eds) Manchester, UK: Siri Scientific Press. pp. 31-120.
Coe, M.J. and Swingland, I.R. 1984. Giant tortoises of the Seychelles. In Biogeography and Ecology of the Seyschelles Islands. Stoddart, D. R. (Eds) The Hague, Boston, and Lancaster: Dr. W. Junk Publishers. pp. 309-330.
Gerlach, J. 2014. Western Indian Ocean Tortoises: Ecology, Diversity, Evolution, Conservation, Palaeontology. Manchester, UK: Siri Scientific Press. 352 pp.
Greeley, R. 1971a. Observations of actively forming lava tubes and associated structures, Hawaii. NASA Technical Memorandum. NASA TM X-62,014. Ames Research Center, Moffett Field, California, USA.
Greeley, R. 1971b. Observations of actively forming lava tubes and associated structures, Hawaii. Part II. NASA Technical Memorandum. NASA TM X-62,096. Ames Research Center, Moffett Field, California, USA.
Golubović, A., Arsovski, D., Ajtić, R., Tomović, L. and Bonnet, X. 2013. Moving in the real world: tortoises take the plunge to cross steep steps. Biological Journal of the Linnean Society, 108: 719-726.
Griffiths, C. 2014. Rewilding in the western Indian Ocean. In Western Indian Ocean Tortoises: Ecology, Diversity, Evolution, Conservation, Palaeontology. Gerlach, J. (Eds) Manchester, UK: Siri Scientific Press. pp. 325-349.
Hawksley, O. 1986. Remains of Quaternary vertebrates from Ozark caves and other miscellaneous sites. Missouri Speleology, 26: 1-67.
Hennessy E. 2019. On the Backs of Tortoises: Darwin, the Galápagos, and the Fate of an Evolutionary Eden. New Haven and London: Yale University Press. 310 pp.
Hume, J.P. 2014. Fossil discoveries on Mauritius and Rodrigues. In Western Indian Ocean Tortoises, Ecology, Diversity, Evolution, Conservation, Palacontology. Gerlach, J. (Eds) Manchester, UK: Siri Scientific Press. pp. 203-228.
Jagger, T.A. 1921. Volcanic conditions in February, activity of Halemaumau: Monthly Bulletin. Hawaii Volcano Observer. 9: 91-37.
Lagarde, F., Bonnet, X., Nagy, K., Henen, B., Corbin, J. and Naulleau, G. 2002. A short spring before a long jump: the ecological challenge to the steppe tortoise (Testudo horsfieldi). Canadian Journal of Zoology, 80: 493-502.
Lagarde, F., Bonnet, X., Naulleau, G., Corbin, J., Bahloul, K., Laurent, J. and Cambag, R. 1999. Short annual activity period in Testudo horsfieldi: consequences on daily displacements. In Current studies in herpetology. Miaud, C. and Guyetant, R. Eds. France: Le Bourget du Lac, Societas Europaea Herpetologica. pp. 249-253.
Longepierre, S., Hailey, A. and Grenot, C. 2001. Home range area in the tortoise Testudo hermanni in relation to habitat complexity: implications for conservation of biodiversity. Biodiversity and Conservation, 10: 1131-1140.
Moll, D. and Brown, L.E. 2017. Reinterpretation of the climatic adaptation of giant fossil tortoises in North America. Herpetological Journal, 27: 276-286.
Patterson, R. 1971. Visual cliff perception in tortoises. Herpetologica 27: 339-341.
Poulakakis, N., Glaberman, S., Russello, M., Beheregaray, L.B., Ciofi, C., Powell, J.R. and Caccone, A. 2008. Historical DNA analysis reveals living descendants of an extinct species of Galápagos tortoise. Proceedings of the National Academy of Sciences 105: 15,464-15,469.
Pritchard, P.C.H. 1996. The Galápagos tortoises: nomenclatural and survival status. Lunenburg, Massachusetts, USA: Chelonian Research Foundation. 85 pp.
Pritchard, P.C.H. 2007. Tales from the Thébaide, Reflections of a Turtleman. Malabar, Florida, USA: Krieger Publishing Company. 330 pp.
Rick, C.M. and Bowman, R.I. 1961. Galapagos tomatoes and tortoises. Evolution, 407-417.
Routtenberg, A. and Glickman, S.E. 1964. Visual cliff behavior in undomesticated rodents, land and aquatic turtles, and cats (Panthera). Journal of Comparative and Physiological Psychology, 58: 143.
Shurcliff, S.N. and Schmidt, K.P. 1930. Jungle Islands: The "Illyria" in the South Seas. London GP Putnam's Sons. 298 pp.
Steadman, D.W. 1986. Holocene vertebrate fossils from Isla Floreana, Galápagos. Smithsonian Contributions to Zoology, (413): 1-103.
Townsend, C.H. 1928. The Galápagos Islands revisited. Bulletin: New York Zoological Society, 31: 148-169.
Turtle Taxonomy Working Group [Rhodin, A.G.J., Iverson, J.B., Bour, R., Fritz, U., Georges, A., Schaffer, H.B. and van dijk, P.P.]. 2017. Turtles of the World: Annotated Checklist and Atlas of Taxonomy, Synonymy, Distribution, and Conservation Status (8th Ed.). In: Rhodin, A. G. J., Iverson, J. B., Van Dijk, P. P., Saumure, R. A., Buhlmann, K. A., Pritchard, P. C. H. and Mittermeier, R. A. (Eds) Conservation Biology of Freshwater Turtles and Tortoises: A Compilation Project of the IUCN/SSC Tortoise and Freshwater Turtle Specialist Group. Chelonian Research Monographs, 7: 1-292. 10.3854/crm.7.checklist.atlas.v8.2017.
Warne, K. 2016. Return of the Seychelles. National Geographic 229: 82-87.
Yerkes, R.M. 1904. Space perception of tortoises. Journal of Comparative Neurology and Psychology, 14: 17-26.
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