. Animal life in the Yosemite; an account of the mammals, birds, reptiles, and amphibians in a cross-section of the Sierra Nevada. Zoology. 128 AMMJL IJI'K IS THE TOSEMITE Meadow mice, particularly those species whicli inhabit runways, are given to extensive travel during the daytime. The runways are, in many instances, nearly or completely covered by the adjacent grass, and would seem to afford a more complete protection than is available to many of the other small rodents. Nevertheless, meadow mice, more often than other small rodents, fall victims to hawks; and their activity at dusk likewi
. Animal life in the Yosemite; an account of the mammals, birds, reptiles, and amphibians in a cross-section of the Sierra Nevada. Zoology. 128 AMMJL IJI'K IS THE TOSEMITE Meadow mice, particularly those species whicli inhabit runways, are given to extensive travel during the daytime. The runways are, in many instances, nearly or completely covered by the adjacent grass, and would seem to afford a more complete protection than is available to many of the other small rodents. Nevertheless, meadow mice, more often than other small rodents, fall victims to hawks; and their activity at dusk likewise results in manv of them being caught bv owls. ^fev:. Fig. 17. Plan of the underground burrow system of a Mariposa Meadow Mouse. Excavated on meadows 3V^ miles east of Coulterville, June 8, ;). Surface scale about 1:25. On a meadow at the head of Bean Creek east of Coulterville a series of runways and burrows of the Mariposa Meadow Mouse was opened up, studied, and mapped by two of our party on June 8, 1915. (See figs. 17, 18.) The meadow was covered with a dense growth of rush, foxtail grass, blue-eyed grass, soaproot, buttercup, wild celery, and other plants. The fine black humus through which the tunnels were dug was damp and the .soil a few inches below the surface of the ground was saturated with water. Some slight depressions in adjacent parts of the meadow still held standing water. The part of the meadow where the tunnels were located was very green; while on nearby higher and rockier parts the grass was already dry and no evidences of meadow mice were to be found. liOth surface runways and iiiKlcrgrouiid liinnels witc t'ouiid in this colony, but only the tunnel system is shown on the accompanying dijigram. Some of the runways led into holes which looked like abandoned goj^her holes, a fact which suggested that the meadow mice had i)ossibly made use of tunnels dug earlier by Please note that these images are extracted from scanned page images that m
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Keywords: ., bookauthorgr, bookcentury1900, bookdecade1920, booksubjectzoology
