Species: Rana cascadae

Cascades Frog
Species
Amphibians
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Terrestrial vertebrates: amphibians

or rapid series of clucking calls (several notes per second) during the breeding season; they may call at the water surface or while submerged. Larvae are brown to blackish, with a silvery to brassy underside; they grow to around 5 cm long. Egg massesare rounded clumps of around 300-500 eggs,.deposited singly or often in groups. Primary source: Stebbins (2003).

Kingdom
Animalia
Phylum
Craniata
Class

Amphibia

Order

Anura

Family

Ranidae

Genus

Rana

Natureserve Explorer
Source:
ELEMENT_GLOBAL.2.103017
Classification
Informal Taxonomy
Animals, Vertebrates - Amphibians - Frogs and Toads
Formal Taxonomy
Animalia - Craniata - Amphibia - Anura - Ranidae - Rana - species group (Macey et al. 2001).

or rapid series of clucking calls (several notes per second) during the breeding season; they may call at the water surface or while submerged. Larvae are brown to blackish, with a silvery to brassy underside; they grow to around 5 cm long. Egg massesare rounded clumps of around 300-500 eggs,.deposited singly or often in groups. Primary source: Stebbins (2003).

Short General Description
A medium-sized frog.
Migration
false - false - false - This species is not known to exhibit well-defined migrations, but it may shift seasonally among different habitats.
Non-migrant
false
Locally Migrant
false
Food Comments
Adults are mainly invertivorous. Larvae eat algae, detritus, plant tissue, and minute organisms in water.
Reproduction Comments
Breeds in spring-summer, March to mid-August, soon after ice and snow melt (Stebbins 1985). In a particular pond, most eggs are laid over a period of just a few days. Each female lays a mass of 300-500 eggs, often in aggregations. Larvae metamorphose into small frogs usually about 2-3 months after the eggs were laid. Individuals first breed probably after their third hibernation (Nussbaum et al. 1983). Typical life span is not more than 5 years.
Length
8
NatureServe Global Status Rank
G3G4
Global Status Last Reviewed
2010-12-22
Global Status Last Changed
2001-11-15
Other Status

NT - Near threatened

Conservation Status Map
<img src="http://www.natureserve.org/explorer/servlet/GetMapGif?US.CA=S3&US.OR=S3&US.WA=S3" alt="Conservation Status Map" style="width: 475px; height: auto;" />
Global Range
F - 20,000-200,000 square km (about 8000-80,000 square miles) - F - Range extends from the Cascade and Olympic mountains of northern Washington south to northern California. Populations in the Olympic Mountains of Washington and the Trinity Alps, Mt. Shasta, and Mt. Lassen areas of California are notably disjunct from the primary distribution along the main Cascade axis (Pearl and Adams 2005). Historical locations at low elevations in Washington suggest that the species formerly may have been more broadly distributed (Leonard et al. 1993). Historical elevational range extended from around 400 to 2,500 meters.
Global Range Code
F
Global Range Description
20,000-200,000 square km (about 8000-80,000 square miles)
ELEMENT_GLOBAL.2.103017