The common wolf snake, Lycodon aulicus capucinus, a recent colonists of Christmas Island in the Indian Ocean

1993 ◽  
Vol 20 (2) ◽  
pp. 261 ◽  
Author(s):  
TH Fritts
Keyword(s):  
Indian Ocean ◽  
Biological Information ◽  
Pest Species ◽  
Boiga Irregularis ◽  
Christmas Island ◽  
Brown Tree Snake ◽  
The Indian Ocean ◽  
The Common

The discovery of the common wolf snake, Lycodon aulicus capucinus, on Christmas I . in the Indian Ocean suggests that individuals of the species have colonised the island recently. On the basis of biological information for this widespread colubrid snake and for the brown tree snake, Boiga irregularis, a well-documented pest species on Guam, the establishment of the common wolf snake would pose a severe threat to the native fauna and ecology of Christmas I. Immediate research is needed to document the spread of the snake, to evaluate its effects on other fauna, and to control or eradicate the species before it becomes firmly established.

New Afrotropical and Oriental species of Micrepimera Matile (Diptera: Keroplatidae)

Zootaxa ◽  
2011 ◽  
Vol 3128 (1) ◽  
pp. 58
Author(s):  
JAN ŠEVČÍK ◽  
LÁSZLÓ PAPP
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
First Record ◽  
Northern Vietnam ◽  
Christmas Island ◽  
Afrotropical Region ◽  
Two New Species ◽  
The Indian Ocean ◽  
Wing Coloration

Two new species of Robsonomyiini (Diptera: Keroplatidae: Macrocerinae), Micrepimera berentiana sp. n. and M. pandastica sp. n., are described from southern Madagascar and northern Vietnam, respectively. This is the first record of this tribe in the Afrotropical region and from mainland Asia. Both the new species differ from M. punctipennis Matile (described from Christmas Island in the Indian Ocean) mainly in wing coloration, structure of antennae, and details of the male terminalia.

Phylogeography of the Christmas Island blue crab,Discoplax celeste(Decapoda: Gecarcinidae) on Christmas Island, Indian Ocean

2012 ◽  
Vol 93 (3) ◽  
pp. 703-714 ◽  
Author(s):  
Lucy M. Turner ◽  
J. Paul Hallas ◽  
Michael J. Smith ◽  
Stephen Morris
Keyword(s):  
Indian Ocean ◽  
Habitat Destruction ◽  
Conservation Strategies ◽  
Ecosystem Change ◽  
Anthropogenic Factors ◽  
Genetic Structuring ◽  
Land Crab ◽  
Christmas Island ◽  
Number Of Factors ◽  
The Indian Ocean

The land crab,Discoplax celeste(Gecarcinidae) is endemic to Christmas Island in the Indian Ocean. Due to a freshwater-dependant life history, in which the megalopae migrate from the ocean up freshwater streams to their adult terrestrial/freshwater habitat,D. celesteinhabits only a few isolated locations on the island. This restricted distribution is one of a number of factors which has previously highlighted the vulnerability of this species to outside threats. A number of anthropogenic factors including the introduction of multiple invasive species and habitat destruction have led to drastic ecosystem change on Christmas Island. The aim of this study was to investigate whether the restricted geographical distributions ofD. celestepopulations contribute to significant genetic structuring across Christmas Island, with an objective to inform future conservation strategies for this species on Christmas Island. Fragments of the mitochondrial cytochrome oxidase I gene and the control region were sequenced from 95 individuals collected from all five locations on Christmas Island known to be inhabited byD. celeste. Analyses using analysis of molecular variance revealed no evidence of population sub-structuring, indicating that despite any geographical isolation, there is a single population ofD. celesteon Christmas Island. This lack of population differentiation is probably explained by the oceanic dispersal of larvae, rather than terrestrial migration ofD. celeste. Therefore, based on these results, for conservation purposes,D. celesteon Christmas Island can be considered a single management unit.

scholarly journals Bat Problems

Oryx ◽  
1980 ◽  
Vol 15 (3) ◽  
pp. 280-281
Author(s):  
R. E. Stebbings
Keyword(s):  
Latin America ◽  
Indian Ocean ◽  
Fruit Bat ◽  
The Usa ◽  
Service Commission ◽  
The Indian Ocean ◽  
The Common ◽  
Set Up ◽  
Vampire Bat ◽  
Specialist Group

How to protect 950 bat species worldwide is the problem of the Chiroptera Specialist Group of the IUCN's Survival Service Commission (SSC), which was set up in 1976. The Group's Chairman, Dr R.E. Stebbings, has highlighted the sort of problems they face by three examples: the endemic fruit bat Pteropus rodricencis on Rodrigues Island in the Indian Ocean; the small insectivorous grey bat Myotis grisescens in the USA, and the common vampire bat Desmodus rotundus of Latin America.

Evidence for a single panmictic and genetically diverse population of the coconut crab Birgus latro (Decapoda: Anomura: Coenobitidae) on Christmas Island in the Indian Ocean

2017 ◽  
Vol 68 (6) ◽  
pp. 1165
Author(s):  
C. Anagnostou ◽  
C. D. Schubart
Keyword(s):  
Indian Ocean ◽  
Pacific Islands ◽  
Habitat Destruction ◽  
Road Mortality ◽  
Effective Population ◽  
Conservation Units ◽  
Population Genetic Analysis ◽  
Christmas Island ◽  
Wide Range ◽  
The Indian Ocean

For the coconut crab Birgus latro, Christmas Island in the Indian Ocean may be one of the last retreats where populations of this declining species are not threatened by overharvesting, as on many other mostly tropical Indo-Pacific islands within the species’ wide range. Nevertheless, the population on Christmas Island has experienced severe losses during the past decade owing to habitat destruction and road mortality. To assess the population’s evolutionary potential and identify the number of conservation units, we conducted a combined morphometric and population genetic analysis using microsatellite markers. The findings suggest that the population is genetically diverse and panmictic. Neither genetic nor morphometric analyses revealed any population substructuring. There was no genetic evidence for sex-biased dispersal. Single-sample estimators for the effective population size (Ne) ranged from 492 to infinity, with very wide confidence intervals; they should therefore be viewed with caution. It would be advisable to reanalyse Ne, preferably by temporal methods. Despite mixed results, there is stronger evidence against rather than for the occurrence of a recent genetic bottleneck. So far, the population of B. latro on Christmas Island may be considered as a single conservation management unit, this way simplifying future conservation efforts taken for this magnificent species.

scholarly journals Dictyostelid Cellular Slime Molds from Christmas Island, Indian Ocean

mSphere ◽  
2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Pu Liu ◽  
Yue Zou ◽  
Wenxiu Li ◽  
Yu Li ◽  
Xinru Li ◽  
...  
Keyword(s):  
Indian Ocean ◽  
Litter Layer ◽  
Slime Molds ◽  
Content Type ◽  
Christmas Island ◽  
Land Crabs ◽  
The World ◽  
Cellular Slime ◽  
The Indian Ocean ◽  
Cellular Slime Molds

ABSTRACT Christmas Island (10°30′S, 105°40′E) is an Australian external territory located in the Indian Ocean, approximately 350 km south of Java and Sumatra and about 1,550 km northwest of the closest point on the Australian mainland. In May 2017, 20 samples of soil/humus were collected on Christmas Island and processed for dictyostelid cellular slime molds. Four species were recovered. Two of these (Dictyostelium purpureum and Cavenderia aureostipes) are common and widely distributed throughout the world, but two other species (Dictyostelium insulinativitatis sp. nov. and Dictyostelium barbarae sp. nov.) were found to be new to science and are described here. IMPORTANCE Reported here are the results of a study for dictyostelids carried out on Christmas Island, Indian Ocean. Six isolates representing four species of dictyostelid cellular slime molds were obtained from two of the four localities from which samples were collected on the island. Two of the species (Dictyostelium insulinativitatis and D. barbarae) belong to the Dictyosteliaceae, genus Dictyostelium, and are new to science. These are described based on both morphology and phylogeny. The diversity and abundance of dictyostelids on Christmas Island appear to be low, which might in part be due to the abundance of land crabs, which considerably reduce the extent of the litter layer on the forest floor.

The Families Rissoinidae and Rissoidae (Mollusca) from the Solanderian and Dampierian Zoogeographical Provinces

1956 ◽  
Vol 7 (3) ◽  
pp. 384 ◽  
Author(s):  
CF Laseron
Keyword(s):  
Indian Ocean ◽  
Northern Australia ◽  
Number Of Species ◽  
Christmas Island ◽  
The Indian Ocean

This paper reviews taxonomically the whole, as far as is known, of the families Rissoinidae and Rissoidae (Mollusca) from northern Australia, with the addition of a number of species from Christmas Island in the Indian Ocean. The area covered includes two zoogeographical provinces, the Solanderian and the Dampierian. All species, known or proposed as new, are figured and discussed. In all, 167 species and subspecies belonging to 47 genera are reviewed, of which 131 species and sub-species and 27 genera are proposed as new. Of these, 123 come from the Solanderian Province and 37 from the Dampierian, and 6 Peronian species are now recorded from the Solanderian. Eight species were found common to the Solanderian and Dampierian. Eighteen species are described from Christmas I.

Infusing Islam in Connected Societies

2019 ◽  
pp. 21-39
Author(s):  
Khairudin Aljunied
Keyword(s):  
Indian Ocean ◽  
Southeast Asia ◽  
South Asia ◽  
Arab World ◽  
Frames Of Reference ◽  
Common People ◽  
Law And Ethics ◽  
The Indian Ocean ◽  
The Common ◽  
The Masses

This chapter uncovers the connectedness of Malay societies that made it conducive for Muslim traders and travelers who crossed the Indian Ocean to live alongside non-Muslim Malays, thereby introducing Islam in an incidental fashion. These traders and travelers were, later on, joined by rulers, Sufi missionaries, and Islamic scholars hailing from the Arab world, South Asia, China, and Southeast Asia who gained new converts through direct preaching. Even though many Malays embraced Islam during this phase, their conversion did not radically change the outlook and governance of Malay states. Hindu-Buddhist-animist frames of reference were generally maintained by the masses as the common people slowly internalized the tenets of Islam. Islamic and pre-Islamic codes of law and ethics were fused together by Malay elites in the management of their societies so as to not disrupt the age-old cultures that the common people held on to.

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