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Zorluk: ZorBiodiversity Conservation Strategies: In-situ and Ex-situ

With reference to biological diversity conservation strategies, consider the following statements:

1. Sacred groves represent an ex-situ conservation mechanism where threatened flora is maintained under controlled laboratory conditions.
2. In-situ conservation permits the continuation of natural evolutionary processes within the native habitat of organisms.
3. Cryopreservation of gametes at ultra-low temperatures functions as an ex-situ preservation method for endangered species.
4. Botanical gardens, biosphere reserves, and national parks are all collectively categorized as in-situ conservation sites.

Which of the statements given above are correct?

  1. A
    1 and 4 only
  2. 2 and 3 onlyCevap
  3. C
    1, 2 and 3 only
  4. D
    2, 3 and 4 only

Cevap

Statements 2 and 3 are correct.
Statement 2 is correct because in-situ conservation preserves species in their natural habitats, allowing natural selection and evolutionary dynamics to proceed. Statement 3 is correct because cryopreservation stores genetic material at ultra-low temperatures outside natural habitats, placing it firmly in the ex-situ category.

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1
Evaluate Statement 1 regarding Sacred Groves
Sacred groves are community-protected natural forest fragments preserved on-site through traditional cultural practices. Thus, they are in-situ conservation strategies, making Statement 1 incorrect.
In-situ strategies protect organisms within their natural ecosystems.
2
Evaluate Statement 2 regarding In-situ Conservation features
In-situ conservation protects wild populations within their natural habitats, allowing ecosystem interactions and evolutionary adaptation processes to continue uninterrupted. Statement 2 is correct.
On-site preservation maintains ecological evolutionary dynamics.
3
Evaluate Statement 3 regarding Cryopreservation
Cryopreservation involves storing biological samples (gametes, seeds, tissues) at sub-zero temperatures (e.g., in liquid nitrogen at -196°C) outside their natural environment. Thus, it is an ex-situ strategy, making Statement 3 correct.
Off-site artificial storage under controlled cryogenic conditions defines ex-situ preservation.
4
Evaluate Statement 4 regarding Botanical Gardens, Biosphere Reserves, and National Parks
Biosphere reserves and national parks are in-situ protected areas, whereas botanical gardens are man-made off-site facilities classified under ex-situ conservation. Statement 4 is incorrect.
Botanical gardens do not protect wild habitats in-situ.

Anahtar Kavram

Classification of Biodiversity Conservation Strategies into In-situ (on-site) and Ex-situ (off-site) approaches
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Konular

Biodiversity Conservation Strategies: In-situ and Ex-situ