Friday 15 March 2019

CASPIAN TIGER - EXTINCT


CASPIAN TIGER:

Facts about the Caspian Tiger:

Name:
Caspian Tiger; also known as Panthera tigris virgata
Habitat:
Plains of central Asia
Size and Weight:
Up to nine feet long and 500 pounds
Diet:
Meat
Distinguishing Characteristics:
Large size; distinctive stripes; larger males than females

THE CASPIAN TIGER EXTINCTION:

This Caspian Tiger was photographed in the Berlin Zoo in 1899. Historic photo courtesy of Peter Maas 



←    Original        distribution 
(in dark grey)




One of three subspecies of Eurasian tiger to go extinct within the last century - the other two are the Bali Tiger and the Javan Tiger--the Caspian Tiger once roamed huge swaths of territory in central Asia, including Iran, Turkey, the Caucasus, and the "-stan" territories bordering Russia (Uzbekhistan, Kazakhstan, etc.). An especially robust member of the Panthera tigris family--the largest males approached 500 pounds--the Caspian Tiger was hunted mercilessly during the late 19th and early 20th centuries, especially by the Russian government, which put a bounty on this beast in a heavy-handed effort to reclaim farmlands bordering the Caspian Sea.
There are a few reasons, besides relentless hunting, why the Caspian Tiger went extinct. First, human civilization encroached mercilessly on the Caspian Tiger's habitat, converting its lands into cotton fields and even looping roads and highways through it fragile habitat. Second, the Caspian Tiger succumbed to the gradual extinction of its favorite prey, wild pigs, which were also hunted by humans, as well as falling prey to various diseases and perishing in floods and forest fires (which grew more frequent with changes in the environment). And third, the Caspian Tiger was already pretty much on the brink, restricted to such a small range of territory, in such dwindling numbers, that virtually any change would have tipped it inexorably toward extinction.
Caspian tiger
Color-enhanced photo of the captive specimen in the Berlin Zoo, 1899
One of the odd things about the extinction of the Caspian Tiger is that it happened literally while the world was watching: various individuals were hunted died and were documented by naturalists, by the news media, and by the hunters themselves, in the course of the early 20th century. The list makes for depressing reading: Mosul, in what is now the country of Iraq, in 1887; the Caucasus Mountains, in the south of Russia, in 1922; Iran's Golestan Province in 1953 (after which, too late, Iran made hunting the Caspian Tiger illegal); Turkmenistan, a Soviet republic, in 1954; and a small town in Turkey as late as 1970 (although this last sighting is poorly documented).
Although it's widely considered to be an extinct species, there have been numerous, unconfirmed sightings of the Caspian Tiger over the past few decades. More encouragingly, genetic analysis has shown that the Caspian Tiger may have diverged from a population of (still extant) Siberian Tigers as recently as 100 years ago and that these two tiger subspecies may even have been one and the same animal. If this turns out to be the case, it may be possible to resurrect the Caspian Tiger by as simple an expedient as re-introducing the Siberian Tiger to its once-native lands of central Asia, a project that has been announced (but not yet fully implemented) by Russia and Iran, and which falls under the general category of de-extinction.


EXTIRPATION:

The demise of the Caspian tiger began with the Russian colonisation of Turkestan during the late 19th century. Their extirpation was a process intensified by several circumstances:
They were ruthlessly persecuted by large parties of sportsmen and military personnel who hunted wild pigs and tigers with reckless abandon.
The extensive reedbeds of tiger habitat were increasingly converted to cropland for planting cotton and other crops that grew well in the rich silt along rivers, which were used as highways for colonisation of riverine habitat.
The range of wild pigs underwent intense shrinkage between the middle of the 19th century and the 1930s due to thoughtless hunting, natural calamities such as floods and fires, and diseases such as swine fever and foot-and-mouth disease, which caused large and rapid die-offs.
Tigers were already vulnerable due to the restricted nature of their distribution, having been confined to watercourses in large expanses of desert environment.

Until the early 20th century, the regular Russian army was used to clear predators from forests, around settlements, and potential agricultural lands. Until World War I, about 100 tigers were killed in the forests of Amu-Darya and Piandj Rivers each year. High incentives were paid for tiger skins up to 1929. Wild pigs and deer, the prey base of the tigers, were decimated by deforestation and subsistence hunting by the increasing human population along the rivers, supported by the growing agricultural developments. By 1910, cotton plants were estimated to occupy nearly one-fifth of Turkestan's arable land, with about one half located in the Fergana Valley.

MSU V2P2 - Panthera tigris virgata & altaica tails
Comparative illustration of the stripe patterns on the tails of Caspian (left) and Siberian tigers (right). By kids.kiddle.co

Wednesday 6 March 2019

JAVAN TIGER - EXTINCT

JAVAN TIGER:

Javan tigers lived on the Indonesian island of Java. These tigers were only a little bigger than the Bali tigers, with the largest males weighing about 250 pounds which is about the same as a large dirt bike. They also had longer, skinny noses and skinny stripes.

COLLECTIE TROPENMUSEUM Een jager poseert bij de huid van een geschoten tijger bij Kalitapakdoewoer TMnr 10024166
Skin of Java tiger, 1915 - By Kids Encyclopedia Facts

GENERAL FACTS:

Endemic Animals
Javan tiger is a large carnivorous species that can only be found in Java (endemic). The tiger is one of the tiger subspecies (Panthera tigris) naturally spread in Asia, from the Caspian sea lakes, Siberia of India, China, the continent of Southeast Asia to the Archipelago Archipelago. Although in general, the Javanese Tiger’s life habit is similar to other tigers. But on the basis of its physicality, the figure of Java Tiger shows a distant characteristic of ‘different’.

Having a territory for hunting and nesting
Together with lions, leopards and jaguars, Java Tigers belong to a large cat family (Felidae) who occupy the top position in the food chain. To ensure the survival of prey animals, the tiger has its own territory. Males generally have a territorial area measuring 10 x 10 km. Meanwhile for females have the smaller range of roaming.

Having the good body among other tiger species
The average size of the Java tiger is larger than the Sumatran tiger and the Balinese tiger, even slightly larger than the Malayan tiger with an average length of 200-245 cm. Male weight ranges from 100-140 kg and females ranges from 75-115 kg.
COLLECTIE TROPENMUSEUM Een tijgergevecht TMnr 60025896
Tiger fight in Java, 1870-1892. By Kids Encyclopedia Facts

The biggest palm of tiger in the world
In addition from the info agreed by experts in a forum of wildlife discussion recognized Javan tiger also has the largest palm than the size of his body. Even the size of the Java tiger palm can be the size of a Bengal tiger even though the body is not too big tigers or as big as the tiger bengal (second largest tiger).

Unique Habits
Unlike the lions that live in groups, tigers tend to live solitary and prefer to hunt at night (nocturnal). The male tiger is also very intolerant towards other males entering his domain. Therefore, as a warning, the tiger will mark the boundaries of its territory with urine and the scratching of scratches on a particular tree trunk. Each individual tiger has a distinctive urine odor.

Having the special menu list
From the traces and dirt left behind, it is known that the Java Tiger is an opportunist predator. Java tigers will prey on whatever animals can be found during the jungle exploration. Deer (Muntiacus muntjak) and wild boar (Sus scrofa) are her favorite foods. Other animals such as Bull (Bos javanicus), long-tailed macaques (Macaca fascicularis), pangolins (Manis javanica), snakes, forest chickens, even rhinoceros beetles are also included in the menu list.

Have the most robust skeleton
Java tigers have the most Robust skeleton in the world of this data compared to the rest of the ancient hunting bones with tigers around the world. Java tiger (Panthera tigris sondaica) has a robustness of 14.8% more robust framework of the tiger bengal (Panthera tigris tigris) as the lowest benchmark among all the tigers.

Unique characteristic face of Javan Tiger
The head of the Java tiger looks small for its rather large, long and slender body size. Head shape is also more flattened with a narrow and long nose. The color of the yellow head is dark red with a bit of mane / beard growing on the chin / neck. Cheeks in white domination with 2 thick colored striped stripes. Java tiger neck looks more level. Legs rather long with the size of the foot is very large.

Having unique stripe patterns
Javanese tiger pattern is also very unique. Compared to other subspecies, Java tiger has the largest number of stripes (can reach a total of more than 100 stripes per tail). Shape is also very thin and long with a tight distance, especially in the thighs and surrounding areas. Surprisingly again, the Java tiger stripe is only concentrated in the back of the body. Upon reaching the abdomen, the stripes seem to disappear unexpectedly. Half the abdomen to the front looks so plain with a minimal number of stripes.

IUCN declared the population of Javan Tiger had been extinct
In the early 1990s, WWF Indonesia took the initiative to install a camera trap to ensure that individual Javanese tigers remained. Camera Trap was in pairs in 19 dots that allegedly became the Java tiger crossing area. The results of the year-long monitoring are really sad. None of the photographs and traces of the Javanese tiger were found. In fact, based on the results of the survey, IUCN (1996) officially declared that the Java Tiger is extinct from the face of the earth forever.
Java Tiger
A Javan tiger in London Zoo before 1942 - By Kids Encyclopedia Facts

The extinction of Javan Tiger is still debatable
Although the IUCN has established the extinction status of Java tigers, some people report still seeing the presence of the big cats in the Meru Betiri forest area. It is also supported by students and nature lovers who find traces and excrement of Javanese tigers during their explorations in the area

Some people still believed that Javan tigers still exist
A Javan Tiger researcher based in Cirebon tried to gather evidence that the Java Tiger is still there. Samples of faeces and trace photos and scratch marks on the trunk of trees are evidence that the Javanese tiger is still there. His research over the years combined with information from his fellow lovers shows that Java tigers still exist. The population of Javan tigers generally spread in remote forest areas or large mountain areas on the island of Java.
Those are the facts of Javan tigers. Though already declared extinct, some people still hope that this species still exists. The findings and evidence of the existence of these animals bring fresh air to animal conservation researchers. There is a kind of hope that the Javanese tiger can reappear to dispel the extinct assumption of decades ago.


BALINESE TIGER - EXTINCT



BALINESE TIGER:



Resultado de imagen de bali tiger facts
By Study.com
Bali Tigers, which became extinct in the 1930s, were one of the first subspecies of tigers to disappear from the earth. An unfortunate fact is that there are now two other subspecies to add to our world's recently extinct animals facts list. There are several reasons why the Bali Tiger was so vulnerable to extinction. 
Imagen relacionada
By ThoughtCo
The tigers were from the island of Bali in Indonesia where they were landlocked on a relatively small island with humans encroaching on their habitat. What many historians believe is that when Europeans arrived in Bali, they started hunting and killing the Bali Tigers which led to their extinction. They do not believe it was due to the Balinese people, who feared the tigers. Balinese kids were often given tiger tooth necklaces to wear for protection.

FACTS ABOUT BALI TIGER:


The Bali Tiger was the smallest of the three extinct subspecies.


Imagen relacionada
By Extinction Blog

In comparison to the other subspecies, the Bali Tiger had shorter fur and fewer stripes that were darker in color. They were also known to have small black spots in between the stripes.

The exact pattern of stripes on the tiger was as unique to the tiger as fingerprints are to humans.

Bali Tigers weighed about 220 pounds (100 kg) and were approximately 6.5 feet (2 meters) long.




GENERAL FACTS:

At one time, the island of Bali covered a much larger area but was split into two islands after the last Ice Age. This isolated the Bali Tiger, whose population was never known to be abundant to start with.


The Bali Tiger was a carnivorous animal. It used to prey on larger hoofed animals such as boar, pigs, deer, antelope, and buffalo as well as birds and monitor lizards.

The reproductive capability of the Bali Tiger was somewhat limited. The females would only breed approximately every two years and the average number of cubs born per pregnancy was 2-3 cubs.

Imagen relacionada
By es.m.wikipedia.org

Bali Tigers were solitary animals who came together only for breeding purposes. Each tiger maintained a territory of at least 10 square miles (25.9 square kilometers).

Because they lived on a small island, it is easy to see why the population was limited before humans even came into the picture.


It is believed that the very last living Bali Tiger was shot by a hunter on the Northern tip of the island of Bali in the late 1930s.

Resultado de imagen de bali tiger facts
By Wikipedia

With just eight Bali Tiger skulls and five skins, there are a very limited number of Bali Tiger specimens that have been preserved in museum collections across the world.

A national park, called Bali Barat National Park, was established as a conservation attempt for the Bali Tiger, but it was too late for this species. Because of the lack of protection for these tigers, hunting them for reasons such as to clear land, for sport, and for food was acceptable.


Almost all parts of the Bali Tiger had commercial value and were worth a good deal of money. This gave hunters even more reason to capture and kill them.

Panthera tigris tigris balica distribution map.png
By Wikipedia



BALI ISLAND