Tamil Nadu Butterfly Migration Patterns — TNPSC Mains Current Affairs May 2024

தமிழ்நாடு உறுப்பு தான பதிவுகள்

Syllabus: Prelims Unit VI - History, Culture, Heritage and Socio-Political Movements in Tamil Nadu

Current Migration Status (2024)

Time Period: April-May
Migration Route:
From: Western Ghats hill ranges
To: Plains and Eastern Ghats
Quality: Reasonably good
Contributing Factor: Good pre-monsoon rainfall

Historical Pattern (TNBS Data)

Observation Period: Since 2013
Notable Years:
2016: No migration (drought year)
2017-18: Improved migration
2019: Decline in migration
2024: Healthier migration

Migration Analysis

Monitoring Agency: Tamil Nadu Butterfly Society (TNBS)
Current Assessment: Healthier than past years
Timing: Pre-Southwest Monsoon
Environmental Correlation: Rainfall dependency

Environmental Indicators

Weather Impact: Strong correlation with rainfall
Climate Sensitivity: Migration patterns reflect weather conditions
Ecological Health: Butterfly presence indicates environmental well-being

பாடத்திட்டம்: முதல்நிலைத் தேர்வு அலகு VI - தமிழ்நாட்டின் வரலாறு, பண்பாடு, பாரம்பரியம் மற்றும் சமூக-அரசியல் இயக்கங்கள்

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