
Wed Sep 03 00:00:00 UTC 2025: Okay, here’s a summary of the provided text and a news article based on it:
**Summary:**
A recent study published in Global Change Biology reveals a dramatic decline in grassland bird populations in the Nilgiri mountains of India over the past 170 years, primarily due to habitat loss (grassland converted to forests/plantations). Researchers compared historical data from museum specimens and digitized old maps with current field surveys and satellite imagery to reach this conclusion. While grassland bird abundance has plummeted, forest bird populations have remained relatively stable due to the expansion of wooded areas. The study highlights the importance of grasslands in the ecosystem and calls for greater recognition and conservation efforts. Furthermore, it underscores the critical role of natural history museums and historical archives in providing crucial baseline data for biodiversity research and conservation efforts, despite challenges in accessing these resources.
**News Article:**
**Nilgiri Grassland Birds Face Extinction Threat as Habitat Disappears, Study Reveals**
**Masinagudi, Tamil Nadu – September 3, 2025** – A new study paints a grim picture for grassland bird populations in the Nilgiri mountain range, a biodiversity hotspot in the Western Ghats. Published in *Global Change Biology*, the research reveals a staggering decline of nearly 90% in the relative abundance of grassland birds over the last 170 years, primarily driven by habitat loss.
Researchers from India, the UK, and the US meticulously compiled data from diverse sources, including historical bird specimens preserved in natural history museums and digitized land-use maps dating back to the mid-19th century. By comparing this historical data with modern field surveys and satellite imagery, the team was able to quantify the dramatic changes in land cover and their impact on bird populations.
“Our findings show a catastrophic loss of grassland habitat, with an 80% reduction in grassland area between 1848 and 2018,” explains Vijay Ramesh, lead author of the study. “Species like the Nilgiri pipit and the Malabar lark, which are exclusively reliant on grassland habitats, have suffered the most significant declines.”
Surprisingly, the study also found that forest bird populations have remained relatively stable. This is attributed to the conversion of grasslands into wooded areas, including exotic plantations and invasive species, which provided alternative habitats for forest-dependent birds. However, researchers emphasize that this does not negate the urgent need to protect and restore the dwindling grasslands.
“Perhaps the biggest threat is the lack of recognition of grasslands as an important part of the landscape,” said V.V. Robin, an author of the paper and associate professor at IISER Tirupati. “The wider efforts are always targeted at conserving forests and planting trees. We need to change this mindset.”
The study also highlights the crucial role of natural history museums and historical archives in conservation research. These repositories contain invaluable historical data that provides a baseline for understanding long-term environmental changes.
“Museums are vital for biodiversity research, especially in India, a global hotspot of species diversity,” said Pritha Dey, a moth biologist at the National Centre for Biological Sciences, Bengaluru. “They preserve historical records of species distributions and provide crucial data for tracking biodiversity loss.”
However, researchers also acknowledge the challenges in accessing these resources, including limited digitization, funding constraints, and bureaucratic hurdles. Sushma Reddy, a curator at the Bell Museum of Natural History at the University of Minnesota, added, “What is the responsibility of these museums to repatriate information or allow access? That’s something we are still struggling with.”
The study underscores the urgent need for increased conservation efforts focused on protecting and restoring grassland habitats in the Nilgiris to prevent the extinction of these unique bird species. It also calls for greater investment in digitizing and making accessible the vast collections of natural history museums, which are essential for understanding and addressing the ongoing biodiversity crisis.