How many hotspots of biodiversity in the world have been identified till date by Norman Myers? [2016]
17
25
34
43
(3)
Biodiversity hotspots are a method to identify those regions of the world where attention is needed to address biodiversity loss and to guide investments in conservation. The idea was first developed by Norman Myers in 1988 to identify tropical forests hotspots characterised both by exceptional levels of plant endemism and serious habitat loss which he then expanded to a more global scope. Currently 34 biodiversity hotspots have been identified most of which occur in tropical forests.
Which of the following national parks is home to the famous musk deer or hangul? [2016]
Keibul Lamjao National Park, Manipur
Bandhavgarh National Park, Madhya Pradesh
Eaglenest Wildlife Sanctuary, Arunachal Pradesh
Dachigam National Park, Jammu and Kashmir
The species confined to a particular region and not found elsewhere is termed as [2015]
endemic
rare
keystone
alien
In which of the following, both pairs have correct combination? [2015]
In-situ conservation: Seed Bank
Ex-situ conservation: National Park
In-situ conservation: Tissue culture
Ex-situ conservation: Sacred groves
In-situ conservation: National Park
Ex-situ conservation: Botanical Garden
In-situ conservation: Cryopreservation
Ex-situ conservation: Wildlife Sanctuary
(3)
In-situ (on site) conservation is conservation and protection of the whole ecosystem and its biodiversity at all levels, in order to protect the threatened species. Two in-situ methods are being used to save biodiversity viz., hotspots and protected areas. Protected areas include national parks, sanctuaries, biosphere reserves and sacred groves. Ex-situ (off site) conservation is conservation of selected rare plants/animals in places outside their natural homes. Ex-situ conservation includes offsite collections, seed banks, gene banks, in vitro fertilization, botanical gardens, cryopreservation techniques and tissue culture.
Cryopreservation of gametes of threatened species in viable and fertile condition can be referred to as [2015]
in situ conservation by sacred groves
in situ cryo-conservation of biodiversity
in situ conservation of biodiversity
advanced ex situ conservation of biodiversity
(4)
Cryopreservation is an advanced method of ex-situ conservation. It involves preservation at -196°C in liquid nitrogen. It can maintain tissue culture, embryos, animal cells/tissues, spermatozoa indefinitely. The cryopreserved material is revived through special technique, when required.
An example of ex-situ conservation is [2014]
national park
seed bank
wildlife sanctuary
sacred grove
(2)
Ex-situ (off site) conservation is conservation of selected rare plants/animals in places outside their natural homes. Ex-situ conservation includes offsite collections, seed banks, gene banks, in vitro fertilization, cryopreservation techniques and tissue culture.
