Wolverine reproductive biology is directly tied to snowpack, making climate change an existential reproductive threat for this remarkable cold-adapted carnivore.
The dependence of wolverine reproduction on spring snowpack creates a direct link between climate change and reproductive welfare. Females who invest the physiological cost of gestation and lactation only to have their dens exposed prematurely suffer reproductive failure that compounds individual welfare harm with population-level decline. Kits that emerge too early face cold exposure, predation, and starvation at rates far exceeding normal years. The specificity of the snow requirement — deep, persistent late-spring snowpack — makes it impossible to mitigate through management intervention; only climate stabilization addresses the root cause. Wolverine reproductive welfare thus depends fundamentally on global emissions reduction.