| OCR Text |
Show 34 Although not feasibl, waters is. of edge the of areas in this habitats can approach the accuracy (1965) into nine study is heading to these with some knowl would expect he very broad be there is and habitat a classification must realization that classified has and exceptions are to the characteristics in of the in mayfly habitats These ecological types. apply brief a later used within species have been modified postulated habitat selection of species comprising the Idaho fauna. the Idaho overlap. Leonard Michigan area, this the and with of of waters the aquatic entomologist, reasonable However, general, and astute geographic predict with to find. classification a An classification of a each Following descriptive statement concerning the various the tabular The types. summary at the headings of end are this also chapter (Table 1). Sand mud, sand and warmer, slow-flowing, vations of in large, silted clay, burrow or occur Mainly composed of large, nymphs habitat. either of rivers and canals at lowe in ele Idaho. Sand and the in which association with this rocks Firmly compacted mixtures Burrowing.- and Gravel gravel warmer, Burrowing.- in which slow- to the nymphs Pockets of burrow. moderately-flowing sand among Generally found rivers and |
