Study on the distribution and habitat requirements of three select threatened grassland birds along Brahmaputra river of Arunachal Pradesh and Assam

Abstract

The study concentrates specifically on the grassland ecosystems of Assam and Arunachal Pradesh, focusing on the Brahmaputra floodplains and adjacent foothills, where habitat transitions occur rapidly and where the target species have historically been recorded . Assam represents the core zone of extensive wet alluvial grasslands shaped by annual sedimentation and fluvial dynamics, whereas Arunachal Pradesh provides ecotonal zones where grasslands interface with semi-evergreen forests and evergreen forests in foothill valleys. These two states, therefore, offer contrasting yet complementary landscapes for understanding the habitat requirements, distribution dynamics, and conservation needs of grassland-specialist birds.