Mammals

Herd size dynamics and observations on the natural history of Dugongs (Dugong dugon) in the Andaman Islands, India

In the last four decades, dugong (Dugong dugon) aggregations have been rarely reported from the geographically isolated, vast seascape of the Andaman Islands, India. The Indian Ocean tsunami of 2004, hunting, coastal development, and habitat loss are the major causes of this change in the social system of dugongs in …

Protection warranted

LARGE terrestrial mammals are the most threatened, with 25 per cent facing extinction and 50 per cent with declining populations globally, wrote environmental scientist Krithi Karanth from the Columbia University in New York, USA. Karanth and colleagues examined extinction patterns in 25 Indian mammal species. They partitioned India’s geographical space …

Blowhole dolphin population rising

PARADIP: The population of blowhole dolphin, declared as an endangered species, has recorded a gradual rise at Mahanadi river mouth in Paradip. Though no census has yet been carried out by the Forest of Fishery Department, it is estimated that there are about 150 porpoises on the Paradip coast, officials …

Mammals under threat

A reliable measure of just how endangered the natural environment is in an era of fast-paced economic development is necessary to advance conservation goals. A recent research report on the likely local extinction threat to 25 mammal species in India over a 100-year time frame attempts to provide some answers. …

Species survival, protected area link found

R. PRASAD Occupancy modelling, which helps in separating true absence from non-detection of a particular species, was used in this study Large terrestrial mammals are the most threatened taxa, and hence face a greater possibility of becoming extinct the world over

Methods in mammalian autophagy research

Autophagy has been implicated in many physiological and pathological processes. Accordingly, there is a growing scientific need to accurately identify, quantify, and manipulate the process of autophagy in cells. However, as autophagy involves dynamic and complicated processes, it is often analyzed incorrectly. In this Primer, we discuss methods to monitor …

Sanctuary still a dream, dolphin count dwindles

Pollution, poaching claim mammals as blueprint prepared by conservator gathers dust Rajmahal, Jan. 5: The friendly Gangetic dolphin is on the verge of extinction in Sahebganj, one of the few pockets in the country having maximum density of this fresh water mammal. A 30km stretch of the Ganga in Sahebganj …

Wildlife mortality from vehicular traffic in Sriharikota Island, southern India

This note discusses the wildlife casualties due to vehicular traffic in Sriharikota Island from observations carried out from January 2002 to December 2003.

Mass extinction of mammals on the way?

Thanks to global warming and ecological degradation, the sixth mass extinction is already on the way, equal to the "big five" that occurred over the past 450 million years, the last of which killed off dinosaurs, warn scientists. Yet, estimates of how dire the current loss of species is have …

Beaked whale strandings and naval exercises

Mass strandings of beaked whales (family Ziphiidae) have been reported in the scientific liter-ature since 1874. Several recent mass strandings of beaked whales have been reported to coincide with naval active sonar exercises. To obtain the broad-est assessment of surface ship naval active sonar operations coinciding with beaked whale mass …

This belongs to us

The fishers of the Indonesian island village of Lamalera have an age-old tradition of whaling that mixes social, cultural and economic practices to sustain livelihoods.

Walruses suffer substantial losses as sea ice erodes

Andrew C. Revkin There is sufficient scientific evidence of rising stress on the marine mammals from climate change. Half a century after Pacific walruses began recovering from industrial-scale hunting, marine biologists are growing worried that they face a mounting threat from global warming. Masses of the lumbering Arctic denizens have …

Animal behaviour and ecological aspects (editorial)

Almost all animals face similar basic ecological problems such as a suitable place to live in, appropriate foods to consume, escape from enemies and producing offspring etc. Some areas are good for feeding and some for breeding. Sometimes these areas are widely separated places. Even if suitable areas are found, …

350 new species located in Himalayas

More than 350 new species, including a flying frog and the world's smallest deer species, have been discovered in the Eastern Himalayas in the last decade, according to the WWF. The eastern Himalayas, the region which spans Bhutan and Northeast India, north Burma, Nepal and southern parts of Tibet Autonomous …

Nandankanan Zoo records first captive bred pango

BHUBANESWAR: The sighting of a baby pangolin in the breeding centre of Nandankanan Zoological Park here has brought cheer to conservationists as this is for the first time that these toothless mammals have successfully bred in captivity in India. On Friday, the CCTV footage of the breeding centre brought up …

Disease runs riot as biodiversity falls

Preserving the world's many species has an unexpected benefit, say researchers

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