Category Animal Records

Should our focus be only on species teetering on the edge of extinction and whose numbers are plummeting? Come, let’s find out.

Do the names Sudan, Martha, and George ring a bell? And, what is common to them? Sudan, a male northern white rhinoceros; Martha, a passenger pigeon and George, a Hawaiian tree snail were all the last of their kind (none of them is alive today). Thankfully, the world has been alive to the concerns of extinction for a while now. Which explains concerted conservation efforts globally to ensure we do not forever lose species as an unfair consequence of our own actions. Population decline in several species has been reversed, while some have been stopped from going extinct. But should our focus be only on species teetering on the edge of extinction and whose numbers are plummeting? Come, let’s find out.

Nature is limitless. Or, is it? Even as recently as the 19th Century, extinction at sea was deemed impossible. “given the reproductive capacity of marine organisms and the impracticality of overfishing”. Species such as the passenger pigeon, the northern cod (a type of fish), the plains bison, the American chestnut (a deciduous tree), and the eastern white pine were once considered super-abundant, and their decline/disappearance, inconceivable. But the reality in all these cases has been different. And points to the fact that common species face decline and extinction too.

It’s wise to remember that several species on the brink of extinction started off as abundant or common. Abundance offers only a “partial buffer” against extinction, and the focus should be on the rate of decline because abundant species “are not immune to decimation”. For instance, a study of North American birds uncovered that “three billion birds on this continent within the past two generations” were lost. The focus on common species is as important as on rare ones because “the shifts in abundance of common species can translate into sizeable shifts in ecosystem functioning”.

 Take the case of birds. Given the amount of “insects they eat, the flowers they pollinate and the seeds they disperse”, a sudden and drastic decrease in the population of a common species can spell disaster in an ecosystem. Apart from this, studies show that encounters in the natural world-even a butterfly in a garden- improve the mental health of humans. When common species go, so will our chance of such encounters.

While rare species do require the attention they get,” the extinction of Commonness” should be prevented. And this can be done when we “monitor nature closely, guard against complacency and invest for the long term.”

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What is ZSI?

The Zoological Survey of India is responsible for exploring, surveying and monitoring the faunal diversity of different States and protected areas in the country.

From time to time, we come across news about researchers of the Zoological Survey of India (ZSI) discovering new species of fauna. But do you know what ZSI is and what its functions are? Let's find out.

A premier organisation in the field of zoological research and conservation, the Zoological Survey of India was established in July 1916. In fact, it began as the zoological section of the Indian Museum in Calcutta in 1875. Headquartered in Kolkata, its main objective is to conduct research and surveys on the fauna of the country and document the rich animal diversity found in different States and protected areas in the subcontinent.

It is the ZSI which is responsible for the classification, categorisation, and description of new animal species, and maintaining a database of all species found across the country. It makes a periodic review of the status of the threatened and endemic species and comes up with conservation strategies for the endangered ones.

The ZSI carries out surveys in different ecosystems, including forests, wetlands, mangroves, backwaters, and coastal areas with the aim of documenting the distribution and abundance of different animal species. These surveys are crucial as they not only promote understanding of the status of the varied species but also help identify areas where conservation efforts are required.

The apex organisation for zoological studies has taxonomists and researchers who identify new animal species, group them into categories, and provide descriptions about them. Every year, the ZSI consolidates information about new fauna in the country and publishes it under the title "Animal Discoveries". It has also published pictorial handbooks and guides to generate interest in people like us to understand and appreciate the fauna of the country.

Did you know that the ZSI also publishes the Red Data Book on Indian Animals? This book contains a record of all the endangered species of animals endemic to the subcontinent. It was first published in 1983.

The ZSI comes under the Ministry of Environment, Forests and Climate Change. It has 16 regional centres spread across the country and over 300 scientists. Dhriti Banerjee is currently the Director of the Zoological Survey of India. In 2021, she became the first woman to take charge as director of the ZSI in its over 100-year history.

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2022 up-close: species in the news

While the arrival of cheetahs from South Africa certainly dominated headlines in 2022, several other species too were in the spotlight in our country for various reasons. Let’s take a look at a few of them

Tiger

As a keystone species, the tiger continues to get national attention, and rightly so. Our country is home to over 50 tiger reserves, and this year, two more got added to that list. The 52nd tiger reserve is in Rajasthan-Ramgarh Vishdhari, spread across Bundi, Bhilwara, and Kota districts over an area of more than 1,500 sq.km. The State’s fourth tiger reserve – after Ranthambore, Sariska, and Mukundra, it is expected to be a major corridor connecting tigers of Ranthambore and Mukundra reserves. The country’s 53rd tiger reserve is in Uttar Pradesh-the Ranipur Tiger Reserve in Chitrakoot district, spread over nearly 530 sq.km. This is the State’s fourth tiger reserve after Dudhwa, Pilibhit, and Amangarh. The new reserve in the Bundelkhand region is just 150 km from the Panna Tiger Reserve in Madhya Pradesh.

Elephant

While Project Tiger is perhaps the most popular in the country, there are other projects looking at protecting specific species. One of them is Project Elephant. Set up in 1992, the initiative has been pivotal in the creation of several elephant reserves across the country. In October, the newest addition to the list – Terai Elephant Reserve at Dudhwa-Pilibhit in Uttar Pradesh – was approved by the Union government. When it becomes a reality, it will be the country’s 33rd elephant reserve, and according the government, “will help in conserving trans-boundary migratory elephant population”.

Dugong

The year 2022 is seen as a watershed moment in the conservation of a vulnerable marine species-the dugong. Tamil Nadu notified India’s first ever dugong conservation reserve in the Palk Bay area of the Gulf of Mannar, which lies between Sri Lanka and the southern tip of India. The move, though seen as long overdue, is vital for the animal as much as it is for the local communities. Keeping with dismal global records, India’s dugong population too has been declining. It is believed that there could be just around 200 dugongs left in our waters. These marine mammals, also called sea cows, can be spotted in our country near the Andaman and Nicobar Islands and off the coast of Tamil Nadu in the Gulf of Mannar and Palk Bay. It’s in the Palk Bay, on approximately a 450-sq km. area, that the reserve will come up.

Turtles

It’s not just large creatures that were in the news in 2022. Even smaller ones such as tortoises and turtles got global attention. To be precise, at the 19th Meeting of the Conference of the Parties (CoP 19) to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) held at Panama City in November. According to the Union government. “At CoP 19, India’s proposal for induction of fresh water turtle Batagur kachuga eamed wide support of the parties in CoP 19 of CITES It is said that CITES also recorded the works done “in the area of conservation of tortoises and fresh water turtles and efforts made in combating wildlife crime and illegal trade of turtles in the country” At the event, India “reiterated its commitment regarding conserving tortoises and fresh water turtles in the country”

Great Indian bustard

The one bird species that’s often in the news in our country is the great Indian bustard. It was no different in 2022. Though the news about the bird is often worrisome, this time around it appeared to offer some hope for the species, and consequentially, conservationists. One of the reasons for the bird’s fatality is through overhead power lines hit. The Supreme Court had initiated many steps to protect the species, including setting up a three-member committee to assess the feasibility of laying high-voltage underground power cables in Rajathan and Gujarat, States where the birds are sighted today. In such a scenario, late in 2022, the country’s top court asked the union government why it should not consider the idea of establishing Project Great Indian Bustard on the lines of the country’s successful Project Tiger.

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How many ants are there for every person on Earth?

There are 2.5 million ants for every human on earth. A new study has estimated that the total global population of ants is a mind-blowing 20 quadrillion (20 by 15 zeroes) or approximately 2.5 million ants crawling around for every human.

The combined biomass of all ants on Earth amounts to 12 megatons of carbon. Biomass is the total quantity or weight of organisms in a given area. This exceeds the combined biomass of wild birds and mammals (2 million tons) and equals 20% of human biomass.

There are more than 12,000 known species of ants, generally black, brown or red in colour. Ants are most abundant in tropical and subtropical regions; they can be found nearly everywhere, except Antarctica, Greenland, Iceland and some island nations.

Ants serve as key ecological players for nutrient cycling, decomposition processes, plant seed dispersal and the agitation of soil. “Think about the amount of organic matter that 20 quadrillion ants transport, remove, recycle and eat. In fact, ants are so essential for the smooth working of biological processes that they can be seen as ecosystem engineers. The late ant scientist E.O. Wilson once called them ‘the little things that run the world’,” says entomologist Patrick Schultheiss, co-author of the study.

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Which is the smallest known mammal, by mass, that still exists?

The Etruscan shrew is the mammal having the smallest mass. It weighs only about 1.8g on average. It is also known as the Etruscan pygmy shrew or the white-toothed pygmy shrew and are characterized by very quick movements. These animals exhibit very fast metabolism and can eat about 1.5-2 times their own body weight per day. Their heads are relatively larger than their bodies.

Etruscan shrews are usually found in warm and damp habitats that are covered by shrubs. They use these habitats to hide from potential predators and often avoid open terrain such as grasslands and scrubby deciduous forests due to the threat of being hunted. They are mostly found in Europe and North Africa, all the way till Malaysia. They have also been located in the Maltese islands in the middle of the Mediterranean Sea. They arrange their nests in various natural shelters, crevices, and abandoned burrows of other animals as they themselves cannot dig burrows very skillfully.

These animals are solitary and territorial. They use chirping noises and signs of aggression to protect their territories. They live rather interesting lives as they are constantly in motion when they are awake and not hiding, and when they are not eating, they constantly groom themselves. They hide from their predators very often, but such hiding periods are short and usually only last less than half an hour. When they move, they make clicking sounds, which stop as they rest.

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Why is the cheetah known as the fastest mammal on land?

Cheetahs are the fastest mammals that live upon the planet and can run at speeds as high as 113 km per hour in short distances.

Their bodies are designed with a lot of agility. They can make quick turns while running at high speeds. Their spines are extremely flexible, giving them the ability to have long strides. Their slender limbs and hard footpads are also excellent tools that aid their agility and speed.

Cheetahs are covered in bold black stripes all over their body and each cheetah has a unique pattern over its skin. They have a tear-like pattern that runs from the inner corners of their eyes down to both sides of their mouths. The ends of their tails have black rings as well. These cats have great eye sight, making them dangerous predators.

Their unique coat is also a great way to blend with the tall, dry grass of the plains and helps them remain hidden during the hunt. The cheetahs live in a range of habitats across eastern and southern Africa, but they are usually found in open grasslands. At one point, they were found throughout Asia and Africa, but they are currently facing extinction due to loss of habitat. Their lives are threatened by the declining number of prey due to the destruction of the natural environments.

Although cheetahs are considered to be among the big cats, they are unable to roar- they can only purr. Like the other big cats of the family, they also usually prey on small- to medium-size animals such as hares, impalas, wildebeest calves, and gazelles.

The cheetah chases its prey at only about half of its maximum speed and often has to rest for at least half an hour before it can eat so as to catch breath. The pronghorn, also called the American antelope, is the fastest long-distance runner in the animal kingdom.

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