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| NAS - Nonindigenous Aquatic Species |
Common Name: Greenhouse Frog
Identification:
Eleutherodactylus planirostris is a tiny striped or variably mottled frog, with an adult SVL (snout-vent length) of 16-32 mm (5/8-1.25 in) (Conant and Collins, 1998). Generally their dorsal color is brown, but often has distinct reddish or orange tones (Schwartz and Henderson, 1991; Conant and Collins, 1998). Unlike Eleutherodactylus coqui, the coqui, and some of our indigenous hylids (treefrogs), greenhouse frogs have indistinct toe pads (disks) and reddish eyes (Conant and Collins, 1998; Powell et al., 1998). The mostly developed young have a tiny tail at hatching (Behler and King, 1979; Conant and Collins, 1998). The call of this diminutive frog is a soft, melodious, series of irregular chirps, usually 4-5 in a series (Deckert, 1921; Goin, 1955; Conant and Collins, 1998). After rain or during balmy summer nights in
Greenhouse frogs have been illustrated by several authors (Wright and Wright, 1949; Smith, 1978; Behler and King, 1979; Ashton and Ashton, 1988; Dundee and Rossman, 1989; Carmichael and Williams, 1991; Conant and Collins, 1998; Bartlett and Bartlett, 1999; Thomas and Speith, 2004).
Size: adult snout-vent length of 16-32 mm
Native Range:
Eleutherodactylus planirostris is indigenous to
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Interactive maps: Continental US, Alaska, Hawaii, Caribbean
In
In July 1998, greenhouse frogs (adults, juveniles, and eggs) were found in flowerpots kept outdoors at a residence in
In
Schwartz and Henderson (1991) claim that E. planirostris has been introduced to
In Jefferson City, Cole County, Missouri, A. Hutton (personal communication 2001) discovered at least 40 juvenile Eleutherodactylus (apparently E. planirostris) living on the dirt floor beneath planting tables in a greenhouse of a commercial florist shop in 2001.
A large, dense population of E. planirostris has been unintentionally introduced to the Tropical Rainforest Building of Tulsa Zoo,
In
Populations of nonindigenous E. planirostris are found in Veracruz, Mexico (Schwartz, 1974; Schwartz and Henderson, 1991; Flores-Villela, 1993; Smith and Smith, 1993), Jamaica (Schwartz and Henderson, 1991; Crombie, 1999; Hedges, 1999), Grenada (Hedges, 1999), the Cayman Islands, Caicos Islands, and possibly the southern Bahamas (Great Inagua Island) (Schwartz and Henderson, 1991). Some authors list E. planirostris as indigenous to
Recently a E. planirostris population was discovered in Tumon,
Means of Introduction:
The greenhouse frog is aptly named since it is usually introduced as a stowaway on imported tropical plants and landscaping materials (Neill, 1951; Bartlett and Bartlett, 1999; Kraus and Campbell, 2002; Kraus in Hurley, 2003), including plants shipped from
Status:
In Florida, E. planirostris is well established wherever it has been collected (Duellman and Schwartz, 1958; King and Krakauer, 1966; Stevenson, 1976; Smith and Kohler, 1978; Ashton and Ashton, 1988; Moler, 1988; Bartlett, 1994; Dalrymple, 1994; McCoid and Kleberg, 1995; McCann et al., 1996; Butterfield et al., 1997; Bartlett and Bartlett, 1999; Duellman and Sweet, 1999; King, 2000; Meshaka et al., 2004). Undoubtedly greenhouse frogs eventually will be discovered in the rest of the counties in
The E. planirostris in
In
There is no information on the status of E. planirostris in
The populations of greenhouse frogs found in Cole County, Missouri, and Tulsa County, Oklahoma, are confined to indoors environments and do not represent true introductions to the ecosystem (A. Hutton, personal communication 2001; B. Olsen, personal communication 2002). The
Eleutherodactylus planirostris is a well-established, invasive species on the
Nonindigenous greenhouse frogs are established in
Impact of Introduction:
The impact of greenhouse frogs on indigenous ecosystems in
The impact of E. planirostris in
The nonindigenous greenhouse frogs found in
Hawaiian populations of these insectivores are invasive and spreading rapidly in a state that has no native frogs (Kraus et al., 1999; Kraus and Campbell, 2002). Greenhouse frogs could potentially eat indigenous, endemic arthropods, including species of insects and spiders close to extinction (Kraus et al., 1999). This also could have a negative impact on indigenous insectivorous birds that may be forced to compete with E. planirostris for food (Kraus et al., 1999; Thomas and Speith, 2004). Nutrient flow through the native food web may be disrupted, and E. planirostris may serve as a source of food for nonindigenous, invasive predators (Kraus, 1999).
Similar problems may be caused by established greenhouse frogs in
The impact of E. planirostris in
Remarks:
The taxonomy and nomenclature of E. planirostris has been reviewed or summarized by Wright and Wright (1949), Schwartz (1974), Frost (1985, 2000), and Collins and Taggart (2002). Of the four weakly described subspecies only one, E. p. planirostris, has nonindigenous populations (Schwartz and Henderson, 1991); Frost (2000) does not recognize any subspecies. The natural history of E. planirostris has been studied or summarized by Deckert (1921), Goin (1947), Wright and Wright (1949),
Greenhouse frogs are entirely terrestrial, secretive frogs that prefer habitats with plenty of shelter such as moist leaf-litter, fallen logs, bark, rocks, chunks of coral, grass clumps, Gopherus polyphemus (gopher tortoise) burrows, flowerpots and potted plants, well-planted gardens, and anthropogenic debris (C. Goin, 1947; O. Goin, 1955; Dundee and Rossman, 1989; Witz and Wilson, 1991; Schwartz and Henderson, 1991). In urban environments they may shelter in cracks and deep seems of cement sidewalks and porches (Somma, personal observation). They feed on insects, other arthropods, and earthworms (Goin, 1947; Schwartz and Henderson, 1991). While they are very adept at utilizing anthropogenic habitat around human dwellings, especially woodpiles, gardens and greenhouses, they easily invade indigenous ecosystems (Goin, 1947; Dundee and Rossman, 1989; Schwartz and Henderson, 1991: Bartlett and Bartlett, 1999). The terrestrial eggs are deposited in moist sheltered sites, including planted flowerpots and bromeliad plants, and undergo direct development, skipping an aquatic tadpole stage (C. Goin, 1947; O. Goin, 1955; Dundee and Rossman, 1989; Schwartz and Henderson, 1991). Unlike many species of Eleutherodactylus, E. planirostris exhibits no parental care of its eggs (Townsend, 1996). Increased reproduction and dispersal may be facilitated by large storms such as hurricanes (Meshaka, 1993, 2001). The terrestrial eggs of greenhouse frogs provide an additional means of allowing them to disperse as stowaways.
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Other Resources:
Eradicators Concede Big Island To Frogs
Nonindigenous Species Website Links
Author: Louis A. Somma
Revision Date: 7/20/2004 Citation for this information:
Louis A. Somma. 2009. Eleutherodactylus planirostris planirostris. USGS Nonindigenous Aquatic Species Database, Gainesville, FL.
<http://nas.er.usgs.gov/queries/FactSheet.asp?speciesID=62> Revision Date: 7/20/2004
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