Life History and Ecology of the Five-Lined Skink, Eumeces fasciatusFitch, Henry S. (Henry Sheldon)
Science
Life History and Ecology of the Five-Lined Skink, Eumeces fasciatus
Fitch, Henry S. (Henry Sheldon)
Eumeces fasciatus
Burt (1928:56) without citing specific records, stated that "The food of
_E. fasciatus_ consists largely of insects and spiders," but in another
paper (1928:62) he listed contents of two stomachs, including a wood
roach (_Parcoblatta_), a cricket (_Gryllus pennsylvanicus_), a
grasshopper, and 2 spiders (attid and lycosid). Smith, summarizing the
findings of other authors (1946:350), stated that "The food consists of
various small insects, insect larvae, earthworms, spiders, etc. Small
vertebrates such as young lizards and mice are sometimes eaten." In a
later work Smith (1950:188) altered this statement slightly: "The food
consists of almost any small moving animal, including many kinds of
arthropods and even small vertebrates."
Many authors have mentioned predation on mammals by these skinks, but
without citing specific instances, which must be rare indeed, for the
smallest newborn mice seem to be near the maximum size of objects that
could possibly be swallowed by the largest adults of the common
five-lined skink. Various early records and statements pertaining to
predation on small vertebrates by five-lined skinks probably pertain in
most cases to _E. laticeps_, which is much larger than _E. fasciatus_,
and more powerful.
Barbour (1950:102) recorded stomach contents of an _E. fasciatus_
collected in Harlan County, Kentucky, as consisting of 60 per cent
Arachnida, 30 per cent adult Lepidoptera, and 10 per cent ants, by
volume. Werler and McCallion (1951:250) mentioned that on two occasions
these skinks in Virginia were seen to eat tenebrionid beetles and
larvae.
Webb (1949:294) fed captive skinks with field crickets (_Gryllus_) and
noted that the lizards tended to seize them by the pronotum, and then
worked forward to the head, chewing vigorously to disable them. The
seized crickets attempted to defend themselves by striking the lizards'
faces and eyes with the cerci and tibial spines. Webb also offered his
skinks newly hatched snails, _Helix aspersa_, which were noticed and fed
upon when they moved. In one instance, he noted that a skink found a
quiescent snail, and swallowed it after testing it with the tongue a few
times.
Public-domain text, read in full here on John Shaqi.
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