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
A similar encounter between a larger juvenile and a cricket
(_Ceuthophilus_) was observed on May 9, 1953. After I had stood for
several minutes beside a rock ledge in woods, my attention was attracted
by a rustling sound in dry leaves. The skink, emerging onto the ledge
from a cavity beneath exposed hackberry roots had its head raised high
and was darting about, peering into crevices and examining its
surroundings with unusual animation. After several seconds the cricket
hopped into view. Possibly it had been injured already, as it moved
deliberately, with short hops. Instantly the skink darted in pursuit,
following its erratic course persistently, as it made several hops. In a
few seconds the skink caught the cricket, bit it vigorously, and
battered it against the rock ledge with violent lateral shaking. Several
times the cricket was knocked from the skink's jaws, but each time it
was quickly retrieved. In a few seconds its struggles were subdued, but
the skink continued to worry it, dropping it and retrieving it dozens of
times. The skink seized the cricket by one of the large rear legs, which
was snapped off with a sudden vigorous shake. The skink then dropped and
lost the detached leg, and ran back to seize the cricket again. The
performance was repeated with several other legs and the antennae, until
most of the appendages were eliminated and the body was softened by
continued biting and chewing. Then although the cricket was of body
diameter almost as great as the skink itself, the lizard swallowed it
head first, engulfing it with violent gulping movements. After the
front end of the prey had entered the gullet, muscles of the throat and
neck were brought into play in forcing it farther down. Swallowing
movements were snake-like, the lizard turning its head at right angles
to the body to squeeze the morsel down.
At the pond rock pile on May 7, 1952, a small adult male was watched as
it moved about over the rocks. A lycosid spider (_Pardosa lapidicina_)
carrying an egg sac was basking on an inclined rock surface. When the
skink had come within a few inches, it made a sudden rush at the spider
which escaped easily. As this common rock-living spider can move with
almost incredible speed, skinks probably do not often catch them in the
open.
Public-domain text, read in full here on John Shaqi.
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