3 ms·
This article is full of fluff, like too many long-form articles on the Internet, but contains some interesting questions for those of us who study bats... - Ba
by driggs 3y ago
This article is full of fluff, like too many long-form articles on the Internet, but contains some interesting questions for those of us who study bats...
- Bats evolved for a night-flying niche to avoid predation by birds like hawks and owls. In such a high latitude there is little true night, so how do they adapt?
- White-Nose Syndrome is so deadly (90% to 99% mortality for Myotis species) because it thrives in the cold, humid temperatures that bats rely on for hibernating overwinter, and its high mortality rate is related to the fact that these bats cluster together shoulder-to-shoulder in great numbers (tens, hundreds, thousands, tens-of-thousands of individuals) allowing the fungus to spread rapidly when introduced by an individual. These populations of Little Brown Bat in Alaska don't roost in traditional cave/mine roosts in high numbers. How does this affect WNS spread, mortality, and these populations' ability to survive?
- Hibernating bats do so to wait out the winter, where there is unfriendly weather and no night-flying insects for food. The Alaskan "winter" is incredibly long and severe, meaning that these Little Brown populations must have an extra reliance on hibernation for survival. How does this affect their susceptibility to WNS?
Also, the photo of ~7 clustered bats roosting in an attic has an incorrect caption; these are Big Brown Bats (Eptesicus fuscus), not Little Brown Bats (Myotis lucifugus).
- gweinberg 3y agoIs being active at night really a good strategy to avoid predation by owls?
- mike-the-mikado 3y agoOwls rely on their very good low-light eyesight to find their prey. Bats use echolocation to detect and evade them. If it's dark enough, the bat has the advantage.