search.noResults

search.searching

dataCollection.invalidEmail
note.createNoteMessage

search.noResults

search.searching

orderForm.title

orderForm.productCode
orderForm.description
orderForm.quantity
orderForm.itemPrice
orderForm.price
orderForm.totalPrice
orderForm.deliveryDetails.billingAddress
orderForm.deliveryDetails.deliveryAddress
orderForm.noItems
Marine turtle nesting populations 341


2006 Chagos Research Expeditions, both funded by the UK Foreign & Commonwealth Office with contributions from the Fauna & Flora International 100% Fund in 1996, and the U.S. Fish & Wildlife Service Multinational Species Conservation Fund (98210-6-G073) in 2006. The 1999 Diego Garcia survey was implemented in collabora- tion with Fauna & Flora International, funded by the UK Overseas Territories Programme. The Bertarelli Foundation facilitated the 2016 rapid surveys. Monthly track counts on the Diego Garcia index beach during 2006–2018 were assisted by K. Dunn, K. Corson and many volunteers. Travel and logistical support were provided by a Darwin Initiative Challenge Fund grant (EIDCF008), the UK Department of the Environment Food and Rural Affairs, the UK Foreign & Commonwealth Office, College of Science of Swansea University, and the British Indian Ocean Territory Scientific Advisory Group of the Foreign & Commonwealth Office. The authors acknowledge use of Maptool (seaturtle.org) for production of Fig. 1.


Author contributions Study design: JAM, NE, GCH; rapid-survey fieldwork: JAM in 1996, 1999, 2006, NE in 2016; design and inception of index beach monthly surveys: JAM; implementation of monthly surveys: ANG; data compilation, analysis and writing: JAM, NE, with contributions from all authors.


Conflicts of interest None.


Ethical standards This research abided by the Oryx guidelines on ethical standards, was non-intrusive, and approved by Swansea University Ethics Committee and the British Indian Ocean Territory Administration of the UK Foreign and Commonwealth Office. All necessary permits were obtained for conducting re- search in British Indian Ocean Territory.


References


ALLEN, Z.C., SHAH, N.J.,GRANT, A.,DERAND, G-D.&BELL,D.(2010) Hawksbill turtle monitoring in Cousin Island Special Reserve, Seychelles: an eight-fold increase in annual nesting numbers. Endangered Species Research, 11, 195–200.


BALAZS, G.H. & CHALOUPKA,M.(2004) Thirty-year recovery trend in the once depleted Hawaiian green sea turtle stock. Biological Conservation, 117, 491–498.


BARNES, M., SZABO, J.K., MORRIS,W.K. & POSSINGHAM,H. (2015) Evaluating protected area effectiveness using bird lists in the Australian Wet Tropics. Diversity and Distributions, 21, 368–378.


BELL,I.&PIKE, D.A. (2012) Somatic growth rates of hawksbill turtles Eretmochelys imbricata in a northern Great Barrier Reef foraging area. Marine Ecology Progress Series, 446, 275–283.


BISHOP, C.M., SPIVEY, R.J., HAWKES, L.A., BATBAYAR, N., CHUA, B., FRAPPELL, P.B. et al. (2015) The roller coaster flight strategy of bar-headed geese conserves energy during Himalayan migrations. Science, 347, 250–254.


BOURJEA, J., CICCIONE,S.&RATSIMBAZAFY,R.(2006) Marine turtle surveys in Nosy Iranja Kely, north-western Madagascar. Western Indian Ocean Journal of Marine Science, 5, 209–212.


BOURJEA, J., FRAPPIER, J., QUILLARD, M., CICCIONE, S., ROOS, S., HUGHES,G.&GRIZEL,H.(2007) Mayotte Island: another important green turtle nesting site in the southwest Indian Ocean. Endangered Species Research, 3, 273–282.


BOURJEA, J., MORTIMER, J.A., GARNIER, J., OKEMWA, G., GODLEY, B.J., HUGHES, G. et al. (2015) Population structure enhances


perspectives on regional management of the western Indian Ocean green turtle. Conservation Genetics, 16, 1069–1083.


BRODERICK, A.C., GODLEY, B.J. & HAYS, G.C. (2001) Trophic status drives inter-annual variability in nesting numbers of marine turtles. Proceedings of the Royal Society of London B, 268, 1481–1487.


BURT, A.J., DUNN, N.,MASON-PARKER, C., ANTHA,S. &MORTIMER, J.A. (2015) Curieuse National Park, Seychelles: critical management needs for protection of an important nesting habitat. Marine Turtle Newsletter, 147, 6–11.


CAUT, S., ANGULO,E.&COURCHAMP,F. (2008) Dietary shift of an invasive predator: rats, seabirds and sea turtles. Journal of Applied Ecology, 45, 428–437.


CHAPMAN,R. & SWINNERTON, K.J. (1996) The MauritiusWildlife Fund St. Brandon Expedition: 22 Jan 1996 to 6 Feb 1996. Unpublished report. Mauritius Wildlife Fund, Mauritius.


CICCIONE,S.&BOURJEA,J.(2006) Nesting of green turtles in Saint-Leu, Reunion Island. Marine Turtle Newsletter, 112, 1–3.


CICCIONE,S.&BOURJEA,J.(2010) Nesting beach revegetation and its influence on green turtle (Chelonia mydas) conservation in Reunion Island. Indian Ocean Turtle Newsletter, 11, 50–52.


CLAUS, S., DE HAUWERE, N., VANHOORNE, B., SOUZA DIAS, F., OSET GARCÍA, P., SCHEPERS, L. et al. (2018) Marine Regions. marineregions.org [accessed 14 November 2018].


COLLINS, C.J.,CHILVERS, B.L., TAYLOR,M.&ROBERTSON, B.C. (2016) Historical population size of the threatened New Zealand sea lion Phocarctos hookeri. Journal of Mammology, 97, 436–443.


DALLEAU, M., CICCIONE, S., MORTIMER, J.A., GARNIER, J., BENHAMOU,S. & BOURJEA,J.(2012) Nesting phenology of marine turtles: insights froma regional comparative analysis on green turtle (Chelonia mydas). PLOS ONE, 7,e46920.


DERVILLE, S., JEAN, C., DALLEAU, M., LE GALL, J-Y., CICCIONE,S.& BOURJEA,J.(2015) Long-term monitoring of green turtle nesting on Tromelin Island demonstrates stable reproduction and population parameters. Chelonian Conservation and Biology, 14, 11–20.


DUNBAR,T.(2011) Monitoring nesting trends and hatchling success of the green turtle (Chelonia mydas) population on Mnemba Island, Zanzibar. Independent Study Project (ISP) Collection. 1006. digitalcollections.sit.edu/isp_collection/1006 [accessed 7 December 2019].


DUTTON, D.L., DUTTON, P.H., CHALOUPKA,M. & BOULON, R.H. (2005) Increase of a Caribbean leatherback turtle Dermochelys coriacea nesting population linked to long-term nest protection. Biological Conservation, 126, 186–194.


ESTEBAN, N., MORTIMER, J.A. & HAYS, G.C. (2017) How numbers of nesting sea turtles can be overestimated by nearly a factor of two. Proceedings of the Royal Society B, 280, 20162581.


FERNANDES, R.S.,WILLIAMS,J.& TRINIDADE,J.(2016) Monitoring, Tagging and Conservation of Marine Turtles in Mozambique: Annual Report 2015/16. Centro Terra Viva, Maputo, Mozambique.


FRAZIER,J.(1975) Marine turtles of the Western Indian Ocean. Oryx, 13, 164–175.


FRAZIER,J.(1985) Marine Turtles in the Comoro Archipelago. North-Holland Publishing Company, New York, USA.


GARNIER, J., HILL, N., GUISSAMULO, A., SILVA, I.,WITT,M.& GODLEY,B.(2012) Status and community-based conservation of marine turtles in the northern Querimbas Islands (Mozambique). Oryx, 46, 359–367.


GEBCO COMPILATION GROUP (2018) General Bathymetric Chart of the Oceans 2018 Grid. dx.doi.org/10.5285/836f016a-33be-6ddc-e053- 6c86abc0788e [accessed November 2018].


GONZÁLEZ-SUÁREZ, M., LUCAS, P.M. & REVILLA,E. (2012) Biases in comparative analyses of extinction risk: mind the gap. Journal of Animal Ecology, 81, 1211–1222.


Oryx, 2020, 54(3), 332–343 © 2020 Fauna & Flora International doi:10.1017/S0030605319001108


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76  |  Page 77  |  Page 78  |  Page 79  |  Page 80  |  Page 81  |  Page 82  |  Page 83  |  Page 84  |  Page 85  |  Page 86  |  Page 87  |  Page 88  |  Page 89  |  Page 90  |  Page 91  |  Page 92  |  Page 93  |  Page 94  |  Page 95  |  Page 96  |  Page 97  |  Page 98  |  Page 99  |  Page 100  |  Page 101  |  Page 102  |  Page 103  |  Page 104  |  Page 105  |  Page 106  |  Page 107  |  Page 108  |  Page 109  |  Page 110  |  Page 111  |  Page 112  |  Page 113  |  Page 114  |  Page 115  |  Page 116  |  Page 117  |  Page 118  |  Page 119  |  Page 120  |  Page 121  |  Page 122  |  Page 123  |  Page 124  |  Page 125  |  Page 126  |  Page 127  |  Page 128  |  Page 129  |  Page 130  |  Page 131  |  Page 132  |  Page 133  |  Page 134  |  Page 135  |  Page 136  |  Page 137  |  Page 138  |  Page 139  |  Page 140  |  Page 141  |  Page 142  |  Page 143  |  Page 144  |  Page 145  |  Page 146  |  Page 147  |  Page 148