Elephants of the World

Asian and African Elephant, Classification, Evolution, Difference, Distribution, Diet and Foraging, Vocalization and Communication, Social organization, Reproduction, Threats and Conservation.

1. Elephants

2. Contents
•Asian and African Elephant
•Classification
•Evolution
•Difference
•Distribution
•Diet and Foraging
•Vocalization and Communication
•Social Organization
•Reproduction
•Threats and Conservation.

3. Order Proboscidea: The Elephants
One living Family, two living genera, 2
living species.

4. Proboscidea
•Proboscidea is an order ofmammalsthat
includes the elephants and their extinct relatives.
Modern-day proboscideans have a long
muscular trunk, long tusks, and thick column-like
legs.
•The word Proboscidea comes from the word
proboscis, which means "nose."

5. Elephantidae
•Modern-day Proboscidea is represented by one
family, the family Elephantidae.There are two
living members of the family Elephantidae
(elephants),
•TheAsianElephant(Elephas maximus) and
TheAfricanElephant(Loxodonta africana).
•Some extinct proboscideans include thewoolly
mammothand themastodon.

6. Classification of Proboscidea:

7. Anatomy of Elephant

8. World Distribution

9. Evolution

10. Evolution
•Elephants should probably be considered part
of the Afrotheria. Closest living relatives are
sea cows and hyraxes (see next slide).
•Earliest proboscideans were tapir-like.
•Evolutionary trends were deepening the teeth,
shortening skull, lengthening trunk and legs.
•Elephas& Mammuthusevolved in Africa; they
were most modern elephants, invading Eurasia,
North America and finally South America.
•Loxodonta, more primitive, survived in Africa.

11. Evolutionary Difference

12. Range and status today
•Loxodonta: Once pan-African, now intra-tropical.
–In plains and savannas, African elephants are now largely
restricted to hunting preserves and national parks.
–In thick forest, status less well known (but may be common).
•Elephas: Once widely distributed from India
throughout continental S.E. Asia and into southern
China. Now very rare.
–Working elephants in Myanmar; tourist elephants elsewhere.
–Wild elephants in Indian national parks–and a few are
widely scattered in some other national parks.

13. Savannah of Africa & Forest of India

16. African
Asian

17. Uses of the trunk
•As a tool
–Grazing & browsing
–Manipulating objects
–Moving water
•As a sense organ
–Touch
–Smell
•As a social-signaling organ
–A trumpet that amplifies vocalizations
–A bearer of visual signals
–A touch-communicator

18. Asiatic Elephant
Scientific classification
Kingdom:Animalia Phylum:Chordata
Class:Mammalia Order:Proboscidea
Family:Elephantidae Genus:Elephas
Species:Elephas maximus
Trinomial name:Elephas maximus indicus
(Cuvier), 1798

20. Distribution In India

21. Distribution In Asia

22. Diet & Foraging
•Require large amount of food
•Full grown eat up to 240 Kg of fresh plant in 18 hours
•Large grinding molars ensure that they can eat any kind of matter
including twig, bark, grass, fruits, roots up to 59 spp of plants & 23
grasses.
•Move continuously as they feed-allowing the vegetation to
regenerate also defecate continuously producing about 100 Kg if
dung in a day

23. Vocalization & Communication
•Asian Elephants use a range of vocalizations to communicate from
tummy rumbles to loose chirps, roar and loud trumpets.
•The latter two are largely used in aggression or when disturbed

24. Social Organization
•Elephants are intelligent, social animals that live in closely knit
family groups lead by a matriarch.
•Elephants have a fission-fusion form of society where as resources
become scarce; they become nuclear (one mother one calves) and
when food resources are plentiful; they rejoin their kith & kin and
form larger herds.

25. Reproduction
•Males sexually matures by 15 yr of age while Female can give birth by
12 yr
•Gestation takes 20-22 months and only one calf is born that suckles
for more than a year
•Female give birth to only one calf every 4-5 years.
•Elephant is polygynous ie. more females than males breed.
•Musth in males increases the chances of breeding. It secrets a
pungent-smelling fluid from its temporal gland of eyes.

26. Elephants in Indian Culture
•Ramayana and Mahabharata are perhaps the earliest texts
dealing with the elephants in India

27. Elephants in Captivity
•Used in war early as the Mahabharata, Mughals and many other
emperors in India and Asia.
•In south India used in religious ceremonies.
•In illegal logging in north east India and south east Asia.
•Central Government forces.

28. Threats
•Four words that define an elephants big, social, intelligent and
nomadic
•Naturally they have to move continuously for feeding (part of natural
cycle)
•Move ranges 300-1000 sq. Km annually through protected areas
and land, farms, railway crossings etc & conflicts with human
•Crop riding is another perennial issue
•Man-elephant conflicts main issue
•Poaching for tusks, ivory trade

29. Conservation
•Project Elephantwas launched in 1992 by theGovt. Of
IndiaMinistry of Environment and Forests
•National Heritage Animal of India declared in 2010
•Elephant task forces
•NGO’s like WTI, ANCF, ATREE, ARANYAK, NCF, WWF -India
putting elephants back into wild with the help of forest department
•Grain-for-grain as conflict mitigation for farmers.