Group items tagged

Ces îles menacées de submersion par le réchauffement climatique.

Menacée par les touristes, une île thaïlandaise est contrainte de fermer.

China claims India's Andaman & Nicobar chain of Islands :: Wake-up call.

Hungry Mice Are Attacking and Killing Adult Albatrosses.

The Growing Significance of the Andaman and Nicobar Islands.

Plastic pollution kills half a million hermit crabs on remote islands.

Adult male sperm whales (Physeter macrocephalus) are long distance runners of the marine realm, feeding in high latitudes and mating in tropical and subtropical waters where stable social groups of females and immatures live. Several areas of uncertainty still limit our understanding of their social and breeding behavior, in particular concerning the potential existence of geographical and/or social fidelities. In this study, using underwater observation and sloughed-skin sampling, we looked for male social fidelity to a specific matrilineal sperm whale group near Mauritius. In addition, we captured a wider picture of kin relationships and genetic diversity of male sperm whales in the Indian Ocean thanks to biopsies of eight individuals taken in a feeding ground near the Kerguelen and Crozet Archipelagos (Southern Indian Ocean). Twenty-six adult male sperm whales were identified when socializing with adult females and immatures off Mauritius. Sloughed-skin samples were taken from thirteen of them for genetic analysis. Long-term underwater observation recorded several noteworthy social interactions between adult males and adult females and/or immatures. We identified seven possible male recaptures over different years (three by direct observation, and four at the gametic level), which supports a certain level of male social fidelity. Two probable first- and thirty second-degree kin relationships were highlighted between members of the social unit and adult males, confirming that some of the adult males observed in Mauritian waters are reproductive. Male social philopatry to their natal group can be excluded, as none of the males sampled shared the haplotype characteristic of the matrilineal social group. Mitochondrial DNA control region haplotype and nucleotide diversities calculated over the 21 total male sperm whales sampled were similar to values found by others in the Indian Ocean. Our study strongly supports the existence of some levels of male sperm whale socia

Chagos islanders cannot return home, UK Foreign Office confirms.

Mumbai Sea Amongst Most Polluted In The World, Average Of 68.83 Debris Items Are Found Per Sqm.

Andaman boat tragedy: Tourists had no life jackets.

For Pacific islands like Palau, Tuvalu and Kiribati, the implications of climate change are clear - and devastating. Already, these governments have begun to plan for a future in which entire populations have to relocate as their islands vanish under the rising sea. But climate change also threatens ways of life in subtler ways, leaving families around the world to work out for themselves how to cope.

How Disaster Aid Ravaged an Island People.

Why did nearly a million king penguins vanish without a trace?

- Scientists identify climate-resistant coral refuge in northern Mozambique - Refuge could preserve climate-sensitive corals due to environmental gradients that allow for coral acclimatization - Overfishing may soon jeopardize refuge - Scientists say area fisheries should be better managed to protect reefs - Study appears in journal Ecosphere

Kimberley native title claimants fear island will be handed to fish farmer.

Chagos Islands: UK refusal to return archipelago to Mauritius show the limits of international law.

Chagos Islands: UK suffers major defeat as UN votes to endorse decolonization.

Deeper waters at remote Ashmore Reef off the Western Australian coast could be acting as a refuge for sea snake species not seen in shallow waters for more than a decade, new research led by the Australian Institute for Marine Science (AIMS) indicates.

Océanie Australie marin inculpation droit loi législation réglementation justice "marine marchande" "transport maritime" bateau navire vraquier drogue "trafic (commerce illicite)" contrebande cocaïne "océan Indien" Australie-Occidentale "îles MARSHALL"