State of India’s Birds

A comprehensive report titled “State of India’s Birds” based on data collected from around 30,000 birdwatchers across India has highlighted concerning trends in bird populations. Out of the 338 bird species studied for changes in numbers over the last 30 years, 60% have experienced a decline. For the 359 species evaluated for changes over the last seven years, 40% have declined. The report uses indices for abundance change and distribution range size within India.

Researchers stressed the need for rigorous research to understand the reasons behind these declines and whether there are inter-species connections. The report emphasizes urgent conservation action for critically threatened species like Jerdon’s Courser, Great Indian Bustard, White-bellied Heron, Bengal Florican, and Finn’s Weaver. The study sheds light on the impact of habitat loss due to urbanization, monocultures, and infrastructure development, along with climate change effects in the Himalayan region.

What percentage of the studied bird species experienced a decline in the last 30 years, and over the last seven years?

60% of bird species studied over 30 years and 40% of species studied over the last seven years showed declines.

What are the three indices used in the report to assess changes in bird populations?

The indices used are long-term trend (change over 30 years), current annual trend (change over the past seven years), and distribution range size within India.

Why do researchers stress the need for rigorous research into the decline of bird species?

Researchers lack specific reasons for each species’ decline and emphasize rigorous research to understand the underlying causes for the declines.

Which critically threatened species are highlighted in the report for urgent conservation action?

The report calls for immediate conservation efforts for species like Jerdon’s Courser, Great Indian Bustard, White-bellied Heron, Bengal Florican, and Finn’s Weaver.

What impact does habitat loss have on Indian bird populations according to the report?

Habitat loss due to urbanization, monocultures, and infrastructure development has significantly affected Indian bird populations.

How are different dietary preferences affecting the decline in bird populations?

Carnivores, insectivores, and granivores are declining faster than omnivores or fruit-and-nectar eaters, possibly due to factors like toxic chemicals and agricultural intensification.

Month: Current Affairs - August, 2023

Category: Reports & Indexes Current Affairs