. Animal communities in temperate America : as illustrated in the Chicago region; a study in animal ecology. Animal ecology; Zoology -- Illinois Chicago. WATER MARGIN COMMUNITIES 181 close to the water. The tiger-beetle of the Lake Michigan shore is dis- placed by that of another (Cicindela repanda) which is less active. With these is the hooded grouse locust (Paratettix cucullatus) (Fig. 137) (40, p. 419). The small semiaquatic snail (Lymnaea modicella) is frequently present in numbers. The nests of the spotted sandpiper (108, 141) and the yellowlegs are found here, and the birds no doubt fee
. Animal communities in temperate America : as illustrated in the Chicago region; a study in animal ecology. Animal ecology; Zoology -- Illinois Chicago. WATER MARGIN COMMUNITIES 181 close to the water. The tiger-beetle of the Lake Michigan shore is dis- placed by that of another (Cicindela repanda) which is less active. With these is the hooded grouse locust (Paratettix cucullatus) (Fig. 137) (40, p. 419). The small semiaquatic snail (Lymnaea modicella) is frequently present in numbers. The nests of the spotted sandpiper (108, 141) and the yellowlegs are found here, and the birds no doubt feed upon the invertebrates present on the margins of the ponds and of the shallow water. c) Association of sedge margins of ponds and small lakes (Stations 32-34; Tables XL, XLI).—As time goes on, the sandy margin is captured by sedges which are scattered at first, so that the animals just discussed continue for a time among them (Figs. 138, 139). Finally, however, the ground becomes sodded over with sedges and a low prairie animal commu- nity comes in, and the bare ground animals disappear. In the case of ponds which are to develop into forest this stage is found only along the young ones. The sedges are soon displaced by shrubs and the sedge communities give way to shrub. d) Associations of shrub margins of ponds and small lakes (Fig. 140) (Stations 34, 37, 44; Tables XLI, XLII).—Mr. Allee has verified my observations to the effect that . Fl^ ^--Hooded grouse . locust {Paratettix cucullatus) the aquatic part of this formation is almost (after Lugger). entirely barren; however, in summer we get the short-winged and armed grouse locust (Tettigidea armata Morse, and parvipennis Harr.) (40) and the slimy salamander (Plethodon glutinosus) (152) (Fig. 141). Of the birds associated with the water we have here the wood-duck and the green heron. 4. MARGINS OF RIVERS (Station 29) Here the sandy margin is similar to that of the ponds and lake. Along the Fox River we find the mole cric
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Keywords: ., bookcentury1900, bookcollectionbiodive, booksubjectanimalecology
