Head to head
Relict Leopard Frog vs Chiricahua Leopard Frog
A relict leopard frog and a Chiricahua leopard frog are both rare southwestern leopard frog species surviving in small, isolated populations, each shaped by a genuinely different kind of vulnerability tied to their specific habitat.
| Relict Leopard Frog | Chiricahua Leopard Frog | |
|---|---|---|
| Scientific name | Lithobates onca | Lithobates chiricahuensis |
| Historical status | Believed extinct, then rediscovered | Never presumed extinct, but declining |
| Habitat type | Isolated desert springs | Isolated sky-island mountain pools |
| Key threat | Extremely limited habitat | Chytrid fungus and habitat fragmentation |
| Native range | Nevada-Arizona-Utah tri-state area | Arizona, New Mexico, northern Mexico |
| Conservation action | Active reintroduction programme | Habitat restoration and captive breeding |
| Population trend | Increasing | Decreasing |
| Conservation status | Vulnerable | Vulnerable |
Relict Leopard Frog vs Chiricahua Leopard Frog: common questions
Was either of these leopard frogs thought to be extinct?
Yes, the relict leopard frog was widely believed to be extinct for several decades until a small surviving population was rediscovered near Lake Mead, while the Chiricahua leopard frog has never been presumed extinct but has instead experienced widespread population decline across a substantial portion of its historical range.
Why is the Chiricahua leopard frog especially vulnerable to disease?
The Chiricahua leopard frog survives across a series of scattered sky-island mountain range populations with limited natural connectivity between them, meaning a chytrid fungus outbreak in one isolated population has little chance of being naturally replenished by frogs from a neighbouring, unconnected mountain range.
Are both frogs currently recovering?
Only the relict leopard frog shows a clearly increasing population trend, supported by an active reintroduction programme following its rediscovery, while the Chiricahua leopard frog's population trend remains decreasing despite habitat restoration and captive breeding efforts across its fragmented mountain range distribution.