Climate change presents a dynamic challenge, often leading to shifts in vegetation patterns within regions. Despite this, national parks stand as bastions of biodiversity conservation. However, these sanctuaries face threats from extreme and unpredictable weather patterns, as well as an increase in the frequency and intensity of natural disasters. Such factors contribute significantly to biodiversity loss within these protected areas. In light of these challenges, precise assessments of future climate scenarios become imperative, necessitating robust climate models. These models rely on both modern and historical climatic data, often derived from well-dated proxy-based paleo-reconstructions.
Kaziranga National Park (KNP) in Assam, known as a corridor for the immigration of Indo-Malayan fauna into the Indian sub-region, plays a vital role in conserving tropical species. Particularly noteworthy is its function as a gene reservoir for these taxa during glacial periods.
Pioneering Study by Birbal Sahni Institute of Palaeosciences (BSIP)
Scientists from the Birbal Sahni Institute of Palaeosciences (BSIP), an autonomous institution of the Department of Science and Technology (DST), have embarked on a groundbreaking initiative. They have developed a modern analogue dataset based on pollen and non-pollen palynomorphs (NPPs) sourced from various vegetation settings across Kaziranga National Park. This dataset aims to facilitate the interpretation of past vegetation and climate in the region.
The study not only evaluates the strengths and weaknesses of the biotic proxy but also assesses the reliability of modern pollen and NPP analogues in identifying different ecological environments. Such assessments serve as a baseline for interpreting Late Quaternary paleo-environmental and ecological changes more accurately within the region.
Significance of Modern Pollen Analogue
Given the high precipitation levels characteristic of this tropical region, a modern pollen analogue is indispensable for deciphering past and future climatic scenarios. The palaeo-ecological data generated by this research promises to enhance our understanding of sustainable future projections in and around the national park.
In contrast to single-proxy interpretations, the combined analysis of pollen and NPP offers a more comprehensive understanding of past ecological dynamics. This approach strengthens subsequent paleo-environmental reconstructions, providing deeper insights into historical vegetation patterns.
Implications for Conservation and Management
The findings of this pioneering research, published in the journal Holocene, offer valuable insights into marker pollen taxa associated with different vegetation and land-use types in Kaziranga National Park. This knowledge can aid public and wildlife management agencies in understanding the intricate relationships between flora, fauna, and herbivores within national parks. By leveraging this understanding, conservation efforts can be optimized to safeguard biodiversity for current and future generations, aligning with the objectives of the National Biodiversity Mission.
This research not only enriches our understanding of ecological processes but also provides practical insights for conservation and management strategies. It stands as a testament to the importance of interdisciplinary collaboration in addressing complex environmental challenges. For further information, please contact: Dr. Sadhan Kumar Basumatary (sbasumatary2005@yahoo.co.in) and Dr. Swati Tripathi (swati.tripathi@bsip.res.in)
Publication link: DOI: 10.1177/09596836231211851
