Biology, asked by lalitsarda2296, 11 months ago

Out of in situ and ex situ conservation which type of conservation measures helps the largest number of species to survive explain in detail 2 biology

Answers

Answered by mihirsingh994
4
Situ Conservation Methods

In-situ conservation, the conservation of species in their natural habitats, is considered the most appropriate way of conserving biodiversity.

Conserving the areas where populations of species exist naturally is an underlying condition for the conservation of biodiversity. That's why protected areas form a central element of any national strategy to conserve biodiversity.  

Ex Situ Conservation Methods

Ex-situ conservation is the preservation of components of biological diversity outside their natural habitats.  This involves conservation of genetic resources, as well as wild and cultivated or species, and draws on a diverse body of techniques and facilities.  Some of these include:

Gene banks, e.g. seed banks, sperm and ova banks, field banks;

In vitro plant tissue and microbial culture collections;

Captive breeding of animals and artificial propagation of plants, with possible reintroduction into the wild; and

Collecting living organisms for zoos, aquaria, and botanic gardens for research and public awareness.

Ex-situ conservation measures can be complementary to in-situ methods as they provide 
an "insurance policy" against extinction. These measures also have a valuable role to play in recovery programmes for endangered species.  The Kew Seed Bank in England has 1.5 per cent of the world's flora - about 4,000 species - on deposit.

In agriculture, ex-situ conservation measures maintain domesticated plants which cannot survive in nature unaided.

Ex-situ conservation provides excellent research opportunities on the components of biological diversity. Some of these institutions also play a central role in public education and awareness raising by bringing members of the public into contact with plants and animals they may not normally come in contact with. It is estimated that worldwide, over 600 million people visit zoos every year.

Ex situ conservation measures should support in-situ conservation measures (in-situ conservation should be the primary objective). 1 

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The role of Protected Areas in maintaining biodiversity

A protected area is a geographically defined area that is designated or regulated and managed to achieve specific conservation objectives. It may be set aside for the protection of biological diversity, and of natural and associated cultural resources and is managed through legal or other effective means. 

This includes national parks and nature reserves, sustainable use reserves, wilderness areas and heritage sites

categories (categories I – III) have mostly been applied in the developing countries, whereas categories V and VI are the most commonly used in the developed world).

Category I Strict Protection. Sometimes called strict nature reserve/wilderness areas. Protected areas managed mainly for science or wilderness protection. Generally smaller areas where the preservation of important natural values with minimum human disturbance are emphasized.

Category II Ecosystem Conservation and Tourism. Sometimes called national parks. Generally larger areas with a range of outstanding features and ecosystems that people may visit for education, recreation, and inspiration as long as they do not threaten the area's values.

Category III Conservation of Natural Features. Sometimes called natural monuments. Similar to National Parks, but usually smaller areas protecting a single spectacular natural feature or historic site.

Category IV Conservation through Active Management. Sometimes called habitat and wildlife (species) management areas. Areas managed to protect and utilise wildlife species.

Category V Landscape/Seascape Conservation and Recreation. Sometimes called protected landscapes/seascapes.

Category VI Sustainable Use of Natural Ecosystems. Sometimes called managed resource protected areas. Protected areas managed mainly for the sustainable use of natural ecosystems.

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This therefore led to a transformation in thinking and the recognition that:

1.      Local people understand their environment and have extensive knowledge of the resources within their local environment

2.      The exclusion of local people from protected areas may actually lead to impoverishment of their biological diversity, with both ecological and social costs

3.      Traditional practices enable people to live with nature in a mutually beneficial way.   For example, instead of banning hunting

4.      Many communities still do not see wildlife and the environment as their own property because they are not involved in decision-making and have little responsibility in conservation projects

5.      Revenues earned from PAs have not always been passed on to communities

realistic understanding of the social and political dimensions of natural resources management. 2 

Protected Areas in Jamaica

I.                    The Blue and John Crow Mountains National Park

II.                 The Montego Bay Marine Park



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mihirsingh994: bro we cant answer above 5000 words
Answered by ssonu43568
4

Type of conservation which helps the species for survive

Explanation:

  • In-situ will help the larger number of species to survive because in-situ conservation method involves strict protection of large area of natural habitat of species.
  • Such as, wildlife conservation organization , forest conservation society, union of conservation etc.
  • However ex-situ conservation is responsible for help the wildife species which is endangered or threatened in the world. for instance - ponds,lakes,zoos, etc.
  • Hence the in situ conservation measures helps the largest number of species to survive.
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