Primary Objectives:

• Document amphibian species present
• Evaluate parameters essential for amphibians use of ephemeral ponds
• Create several temporary ponds within NATL

Amphibian Use of Temporary Ponds

• Many amphibian species utilize temporary ponds for breeding
• Reduced populations of predators (unpredictable environment)
• Some species specialize in this type of environment

Documentation of Amphibian Species Present at NATL

• Verify previous species identifications
• Obtain voucher photographs and specimens
• Weekly sampling of quadrants by means of artificial refugia
• Sampling of aquatic habitat for larval amphibians
• Breeding call surveys
• Opportunistic observations

Evaluate Parameters Essential for Amphibian Use of Ephemeral Ponds

• Density of canopy cover
• Species composition of canopy cover
• Height and diameter of emergent vegetation
• Water chemistry
• Substrate type
• Physical dimensions
• Periodicity

Creation of Temporary Ponds

• Data gathered from surveys of natural ephemeral ponds
• Knowledge of the NATL site
• Utility for public use