10/ 🚀 Check out our full study here: doi.org/10.1111/ecog... #ecology #biogeography #biodiversity

Thanks to @andreapaz.bsky.social and Dan for the great support!

9/ 🌍 Understanding these complexities helps refine global biodiversity research & conservation, ensuring we don’t overlook the ecological richness of tropical and Southern ecosystems.

8/ 📖 Our findings highlight a gap in research focus—tropical & Southern Hemisphere ecosystems are underrepresented in historical studies. This has major implications for biogeography & conservation strategies.

7/ 🔬 Our results suggest that single-hemisphere studies may have overemphasized or underestimated these patterns. The long-standing support for Rapoport’s rule in the Northern Hemisphere may partly reflect historical sampling biases.

6/ 🌎 In fact, we found limited evidence for a global latitudinal gradient in latitudinal ranges size or environmental breadth. The patterns we see are shaped more by geography & evolutionary history than simple niche constraints.

5/ 🔍 Even though range size and environmental breadth were strongly correlated, we did not find a consistent relationship between latitude and environmental breadth.

4/ 🌿 However, for non-tree species in the Southern Hemisphere, we found the opposite: their latitudinal ranges actually decreased towards the poles—challenging the idea of a simple global trend.

3/ 📊 We found only weak support for Rapoport’s rule in the Northern Hemisphere, and mostly for trees—their latitudinal ranges did tend to increase towards the poles.

2/ 🌍 If Rapoport’s rule holds, species in the tropics should have smaller latitudinal ranges than those in higher latitudes. But does this pattern hold globally?