File:The Canadian field-naturalist (1973) (20333629049).jpg

Title: The Canadian field-naturalist
Identifier: canadianfieldnat1973otta (find matches)
Year: 1973 (1970s)
Authors: Ottawa Field-Naturalists' Club
Subjects:
Publisher: Ottawa, Ottawa Field-Naturalists' Club
Contributing Library: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library
Digitizing Sponsor: Harvard University, Museum of Comparative Zoology, Ernst Mayr Library

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1973 Pendlebury: Dusky Salamanders in Quebec 133 Dusky Salamanders occupy two distinctly dif- ferent habitats in the St. Hilaire area. On the mountain proper, these salamanders are found in the immediate vicinity of small, fast-moving streams which drain surrounding topographic heights (I. S. Lapper, personal communica- tion). These streams freeze completely during the winter months and the salamanders that live in these environs may be forced to seek lower levels, much as D. f. fuscus do in central New York (Hamilton 1943). The other habitat is a spring-fed pond on the St. Lawrence Low- lands 1.1 km west of the mountain. The dates on which observations were made, the meas- ured air and water temperatures, and the num- ber of specimens seen at this location are sum- marized in Table 1. The pond is of irregular shape, wider at the southern end than at its effluence to the north (Figure 2). It is 0.4 to 3.1 m wide and 4.3 m long. Well developed humic soil forms the banks while the bottom consists of leaf mulch and organic muck. A profuse growth of algae is usually present at the surface. The pond is fed by a spring which enters from below through fractured shales at the southern end. Water level varies a little through the seasons and is lowest in late summer. PRECAMBRIAN SHIELD
Text Appearing After Image:
MONTEREGIAN HILL MOUNT ROYAL 2 ST BRUNO MTN. 3. ST HILAIRE MTN. 4. ROUGEMONT 5.MT JOHNSON 6.YAMASKA MTN. 7. SHEFFORD MTN 8.BR0ME MTN. Figure 1, Records of the Dusky Salamander Desmognathus f. fuscus in Quebec. The open triangle at St. Bruno Mountain represents a possible occurrence that cannot be verified.

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