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zoogeography mean that simply state that distribution of animals on the basics of geography.several zoogeography area present.palaearctic region have a special type of organisms distribution
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In this ppt, you will study about the different biographical zone of India and types of forest in India and about Indian Biodiversity with a video made by me on youtube. you can follow me here and you can see my more video on youtube.
Grass land ecosystems in india.
types of grasslands
uses of grassland
threats to grasslands
flora and fauna of grassland ecosystems
interesting facts
grassland ecosystem conservation
nice well......it will help in many projects
it will also help you in many activities and all about things......
my self
Tanishq Chawda
class IX
all the best for your journey guys
.....
.....
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Zoo geographical region of wildlife distribution in india
1. Topic: Zoo-geographical region of
wildlife distribution in India
SCHOOL OF STUDIES IN ZOOLOGY
Jiwaji University Gwalior
Dr. Ramkumar Lodhi
Conservation Biology Lab
2. Introduction
• India is a megadiverse country. With only 2.4
per cent of the total land area of the world, the
known biological diversity of India contributes
8 per cent to the known global biological
diversity.
• In terms of Zoo-geographic , India has been
divided into 10 zoo-geographic zones.
• Zoo-geographic zones are as follows:
3.
4. Trans-Himalayan Region
• It constitutes 5.6 per cent of the total geographical area, includes the
high altitude, cold and arid mountain areas of Ladakh, Jammu &
Kashmir, North Sikkim, Lahaul and Spiti areas of Himachal
Pradesh.
• This region mostly lies between 4,500 to 6,000 metres (14,800 to
19,700 ft) and is very cold and arid. The only vegetation is a sparse
alpine steppe vegetation. Extensive areas consist of bare rock and
glaciers.
• The cold dry desert of this zone represents an extremely fragile
ecosystem.
• The Trans-Himalayan region with its sparse vegetation has the
richest wild sheep and goat community in the world.
• The snow leopard, black and brown bears, wolf, marmots, marbled
cat, ibex, and kiang is found here, as are the migratory Black-necked
Cranes.
5.
6.
7. Himalayan Zone
• It constitutes 6.4 per cent of the total geographical area includes some of the highest
peaks in the world. The Himalayas have three biogeographical provinces –
Northwest Himalayas, West Himalayas, Central Himalayas and East Himalayas,
which together constitute about 6.4% of the country's area.
• The Himalayan zone makes India one of the richest areas in terms of habitats and
species.
• The Himalayas consist of the youngest and loftiest mountain chains in the world.
The 2,400 kilometres (1,500 mi) long Himalayan mountain arc have a unique
biodiversity owing to their high altitude, steep gradient and rich temperate flora;
biogeographically, they form part of the Palearctic realm.
• Tropical rainforests predominate in the Eastern Himalayas while dense subtropical
and alpine forests are typical in the Central and Western Himalayas. Oak, chestnut,
conifer, ash, pine, and deodar are abundant in Himalayas.
• Important animals living in the Himalayan ranges include wild sheep, mountain
goats, ibex, musk deer and serow. Red panda, black bear, dholes, wolves, martens,
weasels, leopard and snow leopard are also found here. However carnivores are
scarce and often locally threatened.
8.
9.
10. Indian Desert Zone
• This region consists of two biogeographical provinces. The larger is the Thar or Great Indian
Desert, adjoining Pakistan and which comprises Rajasthan and parts of Punjab and Haryana.
Indian Desert Zone, constituting 6.6 percent of the total geographical area, includes the Thar
and the Kutch deserts.
• The climate is characterised by very hot and dry summer and cold winter. Rainfall is less than
70 cm. The plants are mostly xerophytic. Babul, Kikar, and wild date palm grow in areas of
moderate rainfall. The Indian Bustard, a highly endangered bird is found here. Camels,
gazelles, foxes, spiny-tailed lizards and snakes are found in hot and arid parts of the desert.
• The Rann of Kutch, which lies in Gujarat, is the second biogeographical province. The Rann
is a large area of salt marsh that spans the border between Pakistan and India. The larger part
is located mostly in Gujarat (primarily the Kutch district).
• It is divided into the Great Rann and Little Rann, each with distinct characteristics and fauna.
The Rann of Kutch is the only large flooded grasslands zone in the Indo-Malayan region.The
area has desert on one side and the sea on the other enables various ecosystems,
including mangroves and desert vegetation.
• Its grassland and deserts are home to forms of wildlife that have adapted to its often harsh
conditions. These include endemic and endangered animal and plant species, such as
the Indian wild ass.
• The Rann is home to many resident and migratory bird populations including the greater
flamingo, lesser flamingo, lesser florican and the houbara bustard. The Little Rann is home to
the world's largest population of Indian wild ass. Other mammals found in the Rann include
the Indian wolf, desert fox, chinkara nilgai, blackbuck and others.
11.
12. Semi Arid Region
• Semi-arid Region, constituting 16.6 per cent of the total geographical area, is a
transition zone between the desert and the dense forests of Western Ghats.
• Adjoining the desert are the semi-arid areas, a transitional zone between the
desert and the denser forests of the Western Ghats. The natural vegetation is
thorn forest. This region is characterised by discontinuous vegetation cover
with open areas of bare soil and soil-water deficit throughout the year.
• Thorny shrubs, grasses and some bamboos are present in some regions. A few
species of xerophytic herbs and some ephemeral herbs are found in this semi-
arid tract.
• Jackals, leopards, snakes, fox, buffaloes are found in this region, as well as
birds such as Great Indian Bustard, Asian Houbara, Cream-coloured
Courser, White-eared Bulbul, Spotted Sandgrouse, Pin-tailed Sandgrouse (or
White-bellied Sandgrouse), Black-bellied Sandgrouse, Sykes's
Nightjar, Greater Hoopoe-Lark, Black-crowned Sparrow-Lark, Desert
Lark (Bar-tailed Finch-Lark), Rufous-tailed Scrub-Robin, Isabelline
Wheatear, Asian Desert Warbler are found here.
13.
14.
15. Western Ghats
• Constitutes 4.0 per cent of the total geographical area. It is one of the major tropical evergreen forest
regions in India and represents one of the two biodiversity ‘hot spots’.
• The mountains along the west coast of peninsular India are the Western Ghats, which constitute one of the
unique biological regions of the world. The Western Ghats extend from the southern tip of the peninsula
(8°N) northwards about 1600 km to the mouth of the river Tapi (21°N).
• The mountains rise to average altitudes between 900 and 1500 m above sea level, intercepting monsoon
winds from the southwest and creating a rain shadow in the region to their East.
• The Western Ghats are amongst the 25 biodiversity hot-spots recognized globally. These hills are known for
their high levels of endemism expressed at both higher and lower taxonomic levels. Most of the Western
Ghat endemic plants are associated with evergreen forests.
• The varied climate and diverse topography create a wide array of habitats that support unique sets of plant
and animal species. Apart from biological diversity, the region boasts of high levels of cultural diversity, as
many indigenous people inhabit its forests.
• The region also shares several plant species with Sri Lanka. The higher altitude forests were, if at all,
sparsely populated with tribal people. Rice cultivation in the fertile valley proceeded gardens of early
commercial crops like areca nut and pepper.
• Expansion of traditional agriculture and the spread of particularly rubber, tea, coffee and forest tree
plantations would have wiped out large pockets of primary forests in valleys. The Western Ghats are well
known for harboring 14 endemic species of caecilians out of 15 recorded from the region so far.
• Significant species endemic to this region include Nilgiri Langur, Lion Tailed Macaque, Grizzled Giant
Squirrel, Malabar Civet, Nilgiri Tahr and Malabar Grey Hornbill. The Travancore Tortoise and Cane
turtle are two endangered taxa restricted to a small area in central Western Ghats.
16.
17.
18. Deccan Plateau
• Deccan Plateu is India’s largest biogeographic region making 42 per cent of the total geographical
area. It’s a semi-arid region that falls in the rain shadow area of the Western Ghats. This bio-
geographic zone of peninsular India is by far the most extensive zone, covering India’s finest forests,
particularly in the States of Madhya Pradesh, Maharashtra and Odisha.
• Beyond the Ghats is Deccan Plateau, a semi-arid region lying in the rain shadow of the Western
ghats . This is the largest unit of the Peninsular Plateau of India. The highlands of the plateau are
covered with different types of forests, which provide a large variety of forest products. The Deccan
plateau includes the region lying south of the Satpura range.it extends up to the southern tip of
peninsular India. Anai mudi is the highest peak of this region.
• The Deccan plateau is surrounded by the western and the eastern ghats. These ghats meet each
other at the Nilgiri hills. The western ghats includes the Sahyadri, Nilgiris, Anamalai, and cardamom
hills.many rivers such as Mahanadi, Godavari, krishna, and kaveri originates from western ghats and
flow toward the east.
• The eastern ghats are broken into small hill ranges by river coming from the western ghats. Most of
these rivers empty into the Bay of Bengal. The Godavari is the longest river in the Deccan plateau.
The Narmada and the Tapi flow westwards and fall into the Arabian sea.
• Majority of the forests are deciduous in nature but there are regions of greater biological diversity
in the hill ranges. The zone comprising of deciduous forests, thorn forests and degraded scrubland
support diverse wildlife species.
• Species found in this region are Chital, Sambar, Nilgai, and Chousingha, Barking deer and Gaur,
Elephant, Wild Buffalo, Swamp Deer.
19.
20.
21. Gangetic Plain
• Gangetoc plain constitutes around 10.8 per cent of the total geographical area. In
the North is the Gangetic plain extending up to the Himalayan foothills. This is the
largest unit of the Great Plain of India. Ganga is the main river after whose name
this plain is named. The aggradational Great Plains cover about 72.4mha area with
the Ganga and the Brahmaputra forming the main drainage axes in the major
portion.
• The thickness in the alluvial sediments varies considerably with its maximum in the
Ganga plains. The physiogeographic scenery varies greatly from arid and semi-arid
landscapes of the Rajasthan Plains to the humid and per-humid landscapes of the
Delta and Assam valley in the east.
• Topographic uniformity, except in the arid Western Rajasthan is a common feature
throughout these plains. The plain supports some of the highest population densities
depending upon purely agro-based economy in some of these areas. The trees
belonging to these forests are teak, sal, shisham, mahua, khair etc.
• The Gangetic plain is topographically homogenous for hundreds of
kilometers. The characterstic fauna of this region include Rhino, Elephant, Buffalo,
Swamp Deer, Hog-Deer and Hispid Hare.
22.
23.
24. North East Region
• North East Region constitutes 5.2 per cent of the total geographical area.
This region represents the transition zone between the Indian, Indo-
Malayan and Indo-Chinese bio-geographical regions as well as being a
meeting point of the Himalayan mountains and peninsular India.
• The North-East is thus the biogeographical ‘gateway’ for much of
India’s fauna and flora and also a biodiversity hotspot (Eastern Himalaya).
• Many of the species contributing to this biological diversity are either
restricted to the region itself, or to the smaller localized areas of the Khasi
Hills.
• North-east India is one of the poorest regions in the country. It has several
species of orchids, bamboos, ferns and other plants.
• Here the wild relatives of cultivated plants such as banana, mango, citrus
and pepper can be grown.
25.
26.
27. Coastal Region
• Coastal region constitutes 2.5 per cent of the total geographical area with sandy beaches, mangroves,
mud flats, coral reefs and marine angiosperm pastures make them the wealth and health zones of
India. The coastline from Gujarat to Sunderbans is estimated to be 5,423 km long. Atotal of 25 islets
constitute the Lakshadweep, which are of coral origin, and have a typical reef lagoon system, rich in
biodiversity. However, the densely populated Lakshadweep islands virtually have no natural
vegetation.
• India has a coastline extending over 7,516. 4 km. The Indian coasts vary in their characteristics and
structures. The west coast is narrow except around the Gulf of Cambay and the Gulf of Kutch. In the
extreme south, however, it is somewhat wider along the south Sahyadri.
• The backwaters are the characteristic features of this coast. The east coast plains, in contrast are
broader due to depositional activities of the east-flowing rivers owing to the change in their base
levels.
• Extensive deltas of the, Godavari, Krishna and Kaveri are the characteristic features of this coast.
Mangrove vegetation is characteristic of estuarine tracts along the coast for instance, at Ratnagiri in
Maharashtra.
• Larger parts of the coastal plains are covered by fertile soils on which different crops are grown.
Rice is the main crop of these areas. Coconut trees grow all along the coast.
• Coconut and rubber are the main vegetation of coastal area. The main states of coastal areas are-
Gujarat, Maharashtra, Goa, Karnataka, Kerala, west Bengal, Odisha, Andhra Pradesh, Tamil Nadu
and Puducherry.
28.
29.
30. Andaman and Nicobar Islands
This constitutes 0.3 per cent of the total geographical area are one of the three tropical
moist evergreen forests zones in India. The islands house an array of flora and fauna
not found elsewhere. These islands are centers of high endemism and contain some of
India’s finest evergreen forests and support a wide diversity of corals. In India, endemic
island biodiversity is found only in the Andaman and Nicobar Islands. Some of the
endemic fauna of Andaman & Nicobar islands include Narcondam hornbill, South
Andaman krait etc.
The two groups of islands, i.e., the Arabian Sea islands and Bay Islands differ
significantly in origin and physical characteristics. The Arabian Sea Islands (Laccadive,
Minicoy, etc.) are the foundered remnants of the old land mass and subsequent coral
formations. On the other hand, the Bay Islands lay only about 220 km.
Away from the nearest point on the main land mass and extend about 590 km. With a
maximum width of 58 km the island forests of Lakshadweep in the Arabian Sea have
some of the best-preserved evergreen forests of India. Some of the islands are fringed
with coral reefs. Many of them are covered with thick forests and some are highly
dissected.