Species: Diadophis punctatus

Ring-necked Snake
Species
    Kingdom
    Animalia
    Phylum
    Craniata
    Class

    Reptilia

    Order

    Squamata

    Family

    Colubridae

    Genus

    Diadophis

    Classification
    Other Global Common Names
    Ringneck Snake - couleuvre à collier
    Informal Taxonomy
    Animals, Vertebrates - Reptiles - Snakes
    Formal Taxonomy
    Animalia - Craniata - Reptilia - Squamata - Colubridae - Diadophis - >
    Migration
    true - true - false - Distance between hibernaculum and summer range estimated to average 121 m in Kansas study (Fitch 1975).
    Non-migrant
    true
    Locally Migrant
    true
    Food Comments
    Eats earthworms; slugs; small salamanders, frogs, lizards, and snakes; and various other small invertebrates.
    Reproduction Comments
    Lays clutch of 1-18 eggs, usually in June or July. Eggs hatch in up to about 8 weeks. Sexually mature in 2-3 years. May possibly lay two clutches in south. Eggs are laid from late May through August in Florida. Communal nesting common.
    Ecology Comments
    Population density was estimated to be 719-1849/ha in Kansas study. Distances between recaptures averaged 80 m (range 0-1700 m) in same study; home range had maximum dimension of about 140 m (Fitch 1975).
    Length
    76
    NatureServe Global Status Rank
    G5
    Global Status Last Reviewed
    2005-09-06
    Global Status Last Changed
    1996-10-29
    Other Status

    LC - Least concern

    Conservation Status Map
    <img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.NB=S4&CA.NS=S5&CA.ON=S4&CA.QC=S3&US.AL=S5&US.AZ=S4&US.AR=S5&US.CA=SNR&US.CO=S2&US.CT=S5&US.DE=S5&US.DC=S4&US.FL=S5&US.GA=S5&US.ID=S2&US.IL=SNR&US.IN=SNR&US.IA=S5&US.KS=S5&US.KY=S5&US.LA=S5&US.ME=S5&US.MD=S5&US.MA=S5&US.MI=S5&US.MN=SNR&US.MS=S5&US.MO=SNR&US.NE=S5&US.NV=S3&US.NH=S5&US.NJ=S5&US.NM=S4&US.NY=S5&US.NC=S5&US.OH=SNR&US.OK=S5&US.OR=S4&US.PA=S5&US.RI=SNR&US.SC=SNR&US.SD=S2&US.TN=S5&US.TX=S5&US.UT=S2&US.VT=S3&US.VA=S5&US.WA=S3&US.WV=S5&US.WI=SNR" alt="Conservation Status Map" style="width: 475px; height: auto;" />
    Global Range
    H - >2,500,000 square km (greater than 1,000,000 square miles) - H - The range extends from the Pacific coast to the Atlantic coast of North America (Conant and Collins 1991, Stebbins 2003). The northern limit of the more or less continuous portion of the range reaches Nova Scotia, southern Quebec, southern Ontario, Minnesota, southeastern South Dakota, eastern Nebraska, southeastern Colorado, and Arizona. The southern limit extends to San Luis Potosi (Mexico), the Gulf Coast of the United States, and southern Florida. The species also occurs disjunctly in western North America in eastern Washington, eastern Oregon, Idaho, Nevada, Utah, and Arizona, and it ranges from southern Washington through western Oregon and throughout much of California (except the Central Valley and deserts) into northwestern Baja California, including Islas Todos Santos and San Martin along the Pacific Coast (Grismer 2002). This species has been introduced on Grand Cayman Island (probably via ornamental plants from southern Florida), but it is unknown whether or not the species is established there (Schwartz and Henderson 1991).
    Global Range Code
    H
    Global Range Description
    >2,500,000 square km (greater than 1,000,000 square miles)
    ELEMENT_GLOBAL.2.100405