According to Birdlife International designation of Important Bird Areas IBAs is based on standardize...........

Environment and Ecology Biodiversity

According to Birdlife International, designation of Important Bird Areas (IBAs) is based on standardized criteria, namely :

1. Hold all natural population and no migratory or congregatory bird population

2. Hold significant numbers of one or more globally threatened bird species

3. Hold a suite of restricted-range species or biome-restricted species

Select the correct answer using the codes below.

2 Only

1 Only

1 and 3 Only

2 and 3 Only

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Explanation:

Birds are excellent indicators of ecosystem health.
Criteria are that it should (i) hold significant numbers of one or more globally threatened bird species, (ii) be one of a set of sites that together hold a suite of restricted-range species or biome-restricted species and (iii) have exceptionally large numbers of migratory or congregatory birds.
The IBA programme of Birdlife International aims to identify, monitor and protect a global network of IBAs for conservation of the world's birds and associated biodiversity.
The IBAs contain a range of habitats, such as wetlands, mudflats, microhabitats in biodiversity hotspots, grasslands and scrublands etc.