Difference between in-situ conservation and ex-situ conservation
In-situ conservation protects species in the places they live, and ex-situ conservation keeps them or their genetic material outside those habitats.
By UPSCYatra Editorial Team - May 9, 2026
Table of contents
In-situ conservation protects species and ecosystems where they already live, in national parks, wildlife sanctuaries, and biosphere reserves. Ex-situ conservation keeps genetic material and living specimens outside the wild, in zoos, botanical gardens, seed banks, and cryogenic facilities. The Convention on Biological Diversity treats in-situ conservation as the primary strategy under Article 8 and ex-situ conservation as a complement under Article 9.
Difference between in-situ conservation and ex-situ conservation
Feature
In-situ Conservation
Ex-situ Conservation
Meaning
Protection of species and ecosystems where they live
Safeguard of specimens or genes away from the wild
Where
National parks, wildlife sanctuaries, biosphere reserves
Kaziranga National Park protects rhinos in their floodplain habitat. Grazing, breeding, and predator dynamics stay natural. That is in-situ conservation. When the last Asiatic cheetah vanished from India, the remaining route was ex-situ: negotiating with Namibia for animals from captive populations abroad. Seed banks such as the National Bureau of Plant Genetic Resources in Delhi store crop varieties outside the wild so a drought does not wipe out a landrace.
What this means for the exam
In-situ conservation keeps the habitat and the species that live in it. Ex-situ conservation is the backup when habitat is gone or a species is critically endangered.
In-situ conservation
India is a megadiverse country under dense human pressure. The in-situ network includes more than 106 national parks and more than 567 wildlife sanctuaries, along with Project Tiger. These areas protect landscapes and the ecological processes that run through them. Biosphere reserves are part of this on-site system. Core, buffer, and transition zones do not turn them into ex-situ sites. People may live in the buffer, but the conservation happens where the ecosystem is.
The Convention on Biological Diversity treats this as the primary strategy under Article 8. A species that remains wild keeps natural selection and behaviour. Reintroduction is not always required, because the population never left the habitat. National parks are the standard classroom example.
Ex-situ conservation
Ex-situ conservation fills gaps when wild populations collapse faster than habitat can be restored. The Indian vulture crisis needed captive breeding at Pinjore and other centres because diclofenac had already crashed numbers in the wild. Cheetah reintroduction from Namibia into Kuno shows the sequence: breeding or sourcing abroad, then release into prepared habitat. Zoos and botanical gardens are the everyday examples.
The National Bureau of Plant Genetic Resources stores 4.5 lakh crop accessions so climate shocks and loss of landraces do not erase crop diversity. Article 9 of the Convention on Biological Diversity treats this work as complementary, not as a substitute for habitat. Captive stocks can suffer inbreeding, so the usual aim is eventual return to the wild, as with gharials and vultures. CITES still governs trade in listed species.
Key takeaway
In-situ conservation saves a species where it lives. Ex-situ conservation keeps a backup outside the wild, in zoos, seed banks, and cryogenic storage.
Difference between in-situ conservation and ex-situ conservation FAQs
What is in-situ conservation?
In-situ conservation protects species and ecosystems in their natural habitat. National parks, wildlife sanctuaries, biosphere reserves, and Project Tiger are examples. Article 8 of the Convention on Biological Diversity treats it as the primary strategy.
What is ex-situ conservation?
Ex-situ conservation keeps living specimens or genetic material outside the wild. Zoos, botanical gardens, seed banks, and cryopreservation are examples. Article 9 treats it as a complement to habitat protection. NBPGR stores 4.5 lakh crop accessions this way.
What is the main difference between in-situ and ex-situ conservation?
In-situ conservation saves species where they live. Ex-situ conservation keeps a backup away from that habitat. The Convention on Biological Diversity ranks in-situ work first and treats zoos and gene banks as support, not as a replacement for habitat.
Is ex-situ conservation considered superior under the Convention on Biological Diversity?
No. The Convention prioritises in-situ conservation under Article 8. Ex-situ conservation under Article 9 is supplementary.
Are national parks an example of in-situ conservation?
Yes. National parks conserve species and ecosystems in their natural setting. That is classic in-situ conservation.
Are biosphere reserves an example of ex-situ conservation because they have buffer zones?
No. Biosphere reserves conserve ecosystems on site, with core, buffer, and transition zones. They are in-situ. People may live in the buffer, but the protection is still in the natural setting.
PYQ linkage
2011 · Prelims
Which of the following is an ex-situ conservation method?
