ATOLL RESEARCH BULLETIN - Smithsonian Institution

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Insects of Tromelin The following list records the insects known from the islet and was kindly compiled by Mr. Raymond Mamet, Sugar Industry Research Institute, Mauritius : Collembola One undetermined species. Thysanura One undetermined species Periplaneta americana L. (cosmopolitan) Blatta orientalis L. (tropicopolitan) Symploie sp. Embioptera Oligotoma saundersi Westw. under bark of Tournefortia (cosmopolitan) Isoptera Cryptotermes domesticus Hav. (Ceylon, Eastern Indian Ocean and Pacific Ocean up to Panama) Psocoptera One undetermined species. Hemivtera Creontiades pallidus Ramb. (Continental Africa, Arabia, Madagascar, Mediterranean region) Stenarus leucochilus Reuter on Tournefortia (East Africa, Pemba Islands, Madagascar, Mauritius) Geocoris insularis China (endemic) Pictinus pauliani China on Tournefortia (endemic) Homopt era Igerna bimaculicollis St21 on Tournefortia (South Africa, Kilimandi aro . Madanascar1 - Pulvinaria tromelini Mamet on Achyranthes aspera (endemic) Coleoptera Cratopus adspersus Wat. on Tournefortia (Amirantes, Chagos, Coetivy, Seychelles, Farquhar, Cargados Carajos, Aldabra, Astove, Cosmoledo, Assumvtion. Maldives) Dryotribus mimeticus Horn on dead wood of Tournefortia (Florida, West Indies, Galapagos, Hawaii, Adkle and Nyew Tyew Islands, North Western ~ustralia, ~hekian~) Stephanoderes vulgaris Schauf. on dead wood of Tournefortia (Madagascar)
Hymenoptera Pheidole mevaceohala a F. (wide distribution1 A Apanteles sp. near - sphingivorus Granger. A parasite of Utetheisa (Lepid .) (Madagascar) Lepidoptera Utetheisa pulchelloides Hampson (sensu Jordan 1938) on Tournefortia (Africa, throughout Indian Ocean up to Gilbert Isls.) Loxostege coelatalis Walk. (Ceylon) Diptera Sichopogon reginaldi ~Lguy (endemic) Ornithoctona plicalilis van Olfers. Host: probably frigate birds (Mauritius, Philippines, New Hebrides, Samoa, Comoros, Madagascar) Sarcophaga spinosa Villn. (Mediterranean region) Sarcophaga sp . Acanthonotiphila scotti S6guy on inflorescences of Tournefortia (endemic) Hippelates longiseta Lamb. on inflorescences of Tournefortia (Seychelles, Amirantes, Cargados Carajos) Siphunculina signata Woll. (Madeira, Cargados Carajos) . Birds - At our time of visit, the bird population of Tromelin Island comprised the following nesting species: the Red-footed Booby, the Masked or Blue-faced Booby and the Great Frigate Bird. -- Sula sula rubripes Red-footed Booby In 1954, E. Brygoo noted about 200 nesting pairs scattered on the Tournefortia bushes, some nesting alongside the Frigates. Of 100 nests inspected, two thirds were occupied by the "white" form, the rest by the "brown and white" form. R. 0. Morris in February counted from 150 to 300 individuals. In August 1968, our estimates for the northern half of the island as assessed by the census of occupied nests along 100 x 5 metres of the Tournefortia belt were about 300 pairs, compared with 200 pairs for the southern half (Fig. 10). About one third of the observed birds were of the "brown and white" form. It is interesting to note that R. Newton (1958) found about 4 per cent nesting "brown" forms on Ile Albatros at Cargados Carajos in January 1956, in an overall population of three hundred. It is a pity he did not describe this form, as Red- footed Boobies have now disappeared there probably through the depredations of feral cats. Our discovery of a pair of the "white" form roosting on South Island of the Cargados Carajos, in April 1968 might suggest the possibility of recolonisation from Tromelin Island. As to their nesting habits, the Red-footed Boobies of Tromelin build on top the Tournefortia bushes. Nests are two thirds to one metre apart and made up of Boerhavia strands with a lining of Tournefortia leaves on which the egg is deposited. Brygoo in 1954 found the lining
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ATOLL RESEARCH BULLETIN 136. Coral
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ACKNOWLEDGEMENT The Atoll Research
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J. D. Taylor Department of Zoology,
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15. Plants of Desroches F. R. Fosbe
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vi Page 21 . Fregataminorcolonies o
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viii 21. Transverse erosional groov
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Fig. 1. The Southwest Indian Ocean
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(c) the Farquhar group, comprising
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Acknowledgements Specific acknowled
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2. GEOGRAPHY AND ECOLOGY OF FARQIJH
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the 1960s. The atoll was visited in
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Lagoon and reefs Geomorphology Know
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esembles outcrops of clastic rocks
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are present, and those which are fo
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A single bryophyte, collected on th
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Breeding land birds Birds - The num
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Sula sula -- Recorded from South Is
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Borradaile, L. A. 1907. Land and fr
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Hartman, W. D. 1958. Report on some
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FARQUHAR ATOLL 1. Scaevola communit
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5. Prograding lagoon shore with Sca
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9. Replanting of coconuts in hurric
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13-14. Sooty Terns and Noddies op G
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17. Copra sheds at Settlement, Nort
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ELEUSINE INDICA (L.) Gaertn. South
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GYNANDROPSIS GYNANDRA (L.) Briq. S.
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RHIZOPHORA MUCRONATA Lam. North I.,
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4. AN OLD RECORD OF A BLUE PIGEON A
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5. GEOGRAPHY AND ECOLOGY OF COSMOLE
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Fig. 4. The Aldabra Group
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Polyte, about 250 m wide, is formed
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The mangrove vegetation has not bee
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46 Table 5. Mollusca collected on C
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group, for example a Dolichopodid f
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low and fast over the dunes and usu
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Guano is no longer worked on Northe
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Distant, W. L. 1913. Rhynchota. Par
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Smith, J. L. B. 1956. The fishes of
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PANICUM MAXIMUM Jacq. Menai I., s.
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CLEOME STRIGOSA (Boj.) Oliv. Wizard
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SCUTIA MYRTINA (Burm. f .) Kurz Men
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SARCOSTEMMA VIMINALE R. Br. Menai I
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7. LAND (INCLUDING SHORE) BIRDS OF
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Cisticola cherina Malagasy Grass -W
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It would be interesting to ascertai
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Wing Tail Culmen from base - - Asto
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Of six specimens whose extreme yout
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Locality Menai Wizard Wing 277 nun
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Summary 1. An account is given of t
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Vesey-FitzGerald, L. D. E. F. 1940.
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\ / \ / 0 1000 \ 1 \ ,.,' Metres ,
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deeply dissected with large solutio
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esembles the vegetation of the more
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wide muddy flats. In the north ther
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Table 10. Crustacea (Decapoda) coll
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-- Sula sula Recorded by Watson et
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assistance. Also Mr Basil Bell, Dir
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Lionnet, J. F. G. 1970. Note on the
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CYMODOCEA [CILI ATA] Seen by Grubb
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DIOSCOREA NESIOTIS Hemsl. S. l., Ri
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TAMARINDUS INDICA L. S. l., Ridgway
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ABUTILON ANGULATUM (G. ' P.) Mast.
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IPOMOEA PES-CAPRAE [L.) R. Br. (sen
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LAUNAEA INTYBACEA (Jaca . > P. Beau
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ACRAEIDAE Acraea ranavalona Boisduv
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As already recorded in the Cosmoled
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(page 14) that D. asha is "a dimorp
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Fryer, J. C. F. 1911. The structure
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I I . .. Windward perched sand beac
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scientific investigations. The Roya
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Table 13. Monthly rainfall at ~ssum
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Mixed scrub community The mixed scr
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One hole near the north point also
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Marine fauna The Green Turtle Chelo
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Nor has the Barn Owl Tyto alba been
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Nicoll's - B. - s. crawfordi, only
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(Bourne 1966). Not seen in 1967. Se
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dunes and the windward perched beac
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Dupont, R. P. 1907. Report on a vis
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Piggott, C. J. 1968. A soil survey
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ASSUMPTION ISLAND 18. Low champigno
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22. Outer edge of the reef flat nea
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26. View from the summit of the hig
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30. Leafless Pisonia in the low rr.
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34. Labourers' huts at Settlement;
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148 SPOROBOLUS VIRGINICUS L. Along
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150 ACALYPHA CLAOXYLOIDES Hutch. We
Page 176 and 177: CORDIA SUBCORDATA Lam. Northern par
Page 178 and 179: 14. GEOGRAPMY AND ECOLOGY OF DESROC
Page 180 and 181: Table 15. Scientific studies at Des
Page 182 and 183: Cassytha filiformis is very widespr
Page 184 and 185: In addition to these records, Coppi
Page 186 and 187: Baker, B. H. 1963. Geology and mine
Page 188 and 189: Parker, I. S. C. 1970. Some ornitho
Page 190 and 191: 38. Massive beachrock near the cent
Page 192 and 193: 42. Labourers' quarters at Settleme
Page 194 and 195: CYPERUS LIGULARIS L. Stoddart 4 Poo
Page 196 and 197: TERMINALIA CATAPPA L. Seen by Stodd
Page 198 and 199: ---- REEF EDGE 0 PHOSPHATIC SANDSTO
Page 200 and 201: The vegetation of the phosphate are
Page 202 and 203: Foudia madagascariensis First recor
Page 204 and 205: Rats have been introduced, but apar
Page 206 and 207: Lamb, C. G. 1914. Diptera: Heterone
Page 208 and 209: 17. PLANTS OF REMIRE (EAGLE) ISLAND
Page 210 and 211: ACALYPHA INDICA L. Stoddart & Poore
Page 212 and 213: 18. GEOGRAPHY AND ECOLOGY OF AFRICA
Page 214 and 215: Shore birds Ardea cinerea Two nests
Page 216 and 217: [Coppinger, R. W., and others.] 188
Page 218 and 219: TOURNEFORTIA ARGENTEA L. f. Seen by
Page 220 and 221: cannot provide any information on t
Page 222 and 223: RED-FOOTED BOOBY ISSC+I BLUE-FACED
Page 224 and 225: Table 20. Meteorological data, mean
Page 228 and 229: to have been of Ipomoea pes-caprae
Page 230 and 231: Table 22. Breeding birds and occasi
Page 232 and 233: 44. -- Sula sula rubripes: chick wi
Page 234: 48. Sula sula rubripes: adult "brow
Page 237 and 238: 22. SOME ORNITHOLOGICAL OBSERVATION
Page 239 and 240: Sula leucogaster Bodd. One specimen
Page 241 and 242: Streptopelia picturata (Temm.) Some
Page 243 and 244: APPENDIX: NAMES OF THE ISLANDS J. F
Page 245 and 246: Alphonse, St Franfois and Bijoutier
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