Study finds urbanization hurts tropical bird diversity more than elsewhere
McGill University researchers report that city growth reduces bird species counts significantly more in tropical regions compared to other latitudes.
Global biodiversity pattern shifts
Researchers analyzed bird populations worldwide to measure the impact of urban areas on local species. They found that urban zones near the equator hold 42 percent fewer species than nearby natural habitats. This loss is higher than the global average of 32 percent and far exceeds the 12 percent drop seen at 65 degrees latitude.
Causes of species decline
The study attributes this disproportionate loss partly to more intense urbanization in tropical cities. Many tropical bird species also struggle to cope with changing environments better than their counterparts elsewhere. These factors combine to weaken a long-standing ecological pattern where biodiversity increases toward the tropics.
Potential solutions proposed
Experts suggest preserving green space as a hopeful measure to protect these populations. Such urban planning strategies might allow birds and other species to survive in growing cities. The researchers warn that one of Earth's most prominent biological patterns is almost being erased.
Reported by one outlet
Only one outlet has published this. Nothing here has been checked against a second report, so read it as that outlet's account and follow the link below for the original.
Reported by
1 independent outlet. Headline as published. Links open the original report.