endemic to a single nation
Regularity: Regularly occurring
Type of Residency: Year-round
Global Range: Range recently was extended to the Withlacoochee and Alapaha rivers, Suwannee River drainage, in Georgia (Jensen 1998).
Distribution: USA (Florida)
Non-Migrant: No. All populations of this species make significant seasonal migrations.
Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).
Locally Migrant: No. No populations of this species make annual migrations of over 200 km.
Jackson and Walker (1997) estimated that a population in northern Florida included about 305 adult females in about 5 km (41 ha) of river.
Egg losses to predators (raccoons, fish crows) can approach 100 percent (Jackson and Walker 1997).
Life History and Behavior
In northern Florida, nesting begins in late March or early April and extends into early August; individual lay as many as five clutches per season; most if not all females nest annually; typical clutches contain 8-27 eggs (mean 17.5); hatchlings may emerge from nests in fall or not until the following spring; females were sexually mature at a minimum age of 10 years (Jackson and Walker 1997).
National NatureServe Conservation Status
Rounded National Status Rank: N3 - Vulnerable
NatureServe Conservation Status
Rounded Global Status Rank: G3 - Vulnerable
Management Requirements: See Jackson and Walker (1997) for management recommendations for a population in northern Florida (e.g., prevent excessive adult mortality, control predators whose populations are unnaturally large due to association with humans, maintain suitable nesting habitat).
Names and Taxonomy
Comments: See taxonomic comments for P. concinna.