Ecology of the Opossum on a Natural Area in Northeastern KansasFitch, Henry S. (Henry Sheldon)
Science
Ecology of the Opossum on a Natural Area in Northeastern Kansas
Fitch, Henry S. (Henry Sheldon)
Opossums
The crayfish is evidently the most important animal food, at least
during the cooler half of the year when scats are seen in greatest
numbers. Remains of crayfish were far more conspicuous than those of
other invertebrates, and often made up the greater part of the scat.
The sample of scats examined in the field, as noted below, are thought
to be representative of the much larger number noticed but not
examined in detail.
August 19, 1951, 16 scats. Food items in their approximate
order of importance were: blackberry in six (100% in 5, 95%
in 1); grape in five (100% in 2, 97% in 1, 95% in 1, 50% in 1);
crayfish in three (100% in 1, 60% in 1, 40% in 1); wild plum
in two (85% in 1, 5% in 1); wild crabapple in two (100% in
both); insects in three (scarabaeid beetle 10% in 1, cicada 2%
in 1, unidentified insect fragments in 5); fox squirrel in one
(15%); unidentified plant fibers in one (40%).
September, 1951, 16 scats. Grape in seven (all or most of 5
scats and small percentages of 2 others); cherry in seven
(all or most of 5 scats and small percentages of 2 others);
crayfish in seven (all or most of 5 and small percentages of
2 others); rabbit in two, making up most of both; insects
(grasshopper, and large black beetle) in two making up small
percentages.
October, 1951, 8 scats. Hackberry in three, making up nearly
all of them; grape in two (all of 1 and most of the other);
wild plum in one (100%); mast (acorn?) in one, making up 100%;
crayfish in one making up about half; fox squirrel in one
making up the remainder of the scat containing crayfish;
rabbit in one making up a small percentage.
November, 1951, 12 scats. Hackberry in five, making up all or
most of four and a small part of the fifth; grape in five,
making up all or most of four and a small part of the fifth;
wild crabapple in three, making up all of two and most of the
third; and cottontail in one, making up all of it.
January, 1952, 3 scats. Hackberry in all, making up all of two
and most of the third; copperhead (scales of medium-sized
adult) making up a fraction of the third scat. Pile of more
than a dozen scats not individually separable, nearly all
consisted mainly or entirely of hackberry fruits estimated at
2000; other contents chiefly crabapple and corn.
September, 1952, 8 scats. Grape in all, making up all of six
and 90% of the seventh, and about 20% of the eighth; wild plum
seeds in one making up 40%; blue feathers, evidently of a jay,
in one, making up a trace; carabid beetles in one making up a
trace.
Public-domain text, read in full here on John Shaqi.
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