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Related Experiment Video

Updated: Nov 15, 2025

An Automated Method to Determine the Performance of Drosophila in Response to Temperature Changes in Space and Time

An Automated Method to Determine the Performance of Drosophila in Response to Temperature Changes in Space and Time

Published on: October 12, 2018

Climate-driven flyway changes and memory-based long-distance migration.

Zhongru Gu^1,2,3, Shengkai Pan^1,2, Zhenzhen Lin^1,2

¹Key Laboratory of Animal Ecology and Conservation Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.

|March 4, 2021

Summary

This summary is machine-generated.

Researchers tracked 56 peregrine falcons across Eurasia, revealing five distinct migration routes. The gene ADCY8 is linked to migratory distance, with long-term memory potentially driving its evolution in these Arctic birds.

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Area of Science:

Avian ecology
Evolutionary genetics
Conservation biology

Background:

Arctic breeding grounds host millions of migratory birds annually.
Understanding avian migration routes and their genetic basis is crucial, especially for Arctic populations.
The formation, maintenance, and future of these routes under environmental change remain poorly understood.

Purpose of the Study:

To investigate the formation and maintenance of migration routes in Eurasian Arctic peregrine falcons (Falco peregrinus).
To identify genetic determinants of migratory distance in these populations.
To assess the potential impact of climate change on Arctic peregrine falcon migration.

Main Methods:

Satellite tracking of 56 peregrine falcons from 6 Eurasian Arctic populations.
Whole-genome resequencing of 35 individuals from 4 populations.
Analysis of environmental divergence and genetic associations.

Main Results:

Five distinct migration routes were identified across Eurasia, likely shaped by past climate shifts (Last Glacial Maximum to Holocene).
Contemporary environmental differences appear to maintain route distinctiveness.
The gene ADCY8 was significantly associated with population-level differences in migratory distance, with evidence suggesting long-term memory as a selective agent.

Conclusions:

Migration routes are shaped by historical climate changes and maintained by current environmental divergence.
Genetic variation in ADCY8 influences migratory distance, potentially linked to cognitive traits like long-term memory.
Climate change poses a threat to Arctic peregrine falcon breeding ranges and migration strategies, necessitating conservation efforts informed by ecological and evolutionary processes.