An associational study of Illinois sand prairie . unit, and that the animal association cannot usually be treat-ed apart from the plant association. Gleason (1910) has discussedthe inland sand plants quite thoroughly, and it is not necessary toconsider the plant associations in this account except as a settingfor the activities of the animal, and in the more direct relationsbetween anim_al and plant. The study of a single association could be made the work of alife-time, and still be far from complete. In such short as wasavailable for this work, little more than an idea of the compositi
An associational study of Illinois sand prairie . unit, and that the animal association cannot usually be treat-ed apart from the plant association. Gleason (1910) has discussedthe inland sand plants quite thoroughly, and it is not necessary toconsider the plant associations in this account except as a settingfor the activities of the animal, and in the more direct relationsbetween anim_al and plant. The study of a single association could be made the work of alife-time, and still be far from complete. In such short as wasavailable for this work, little more than an idea of the compositionof the associations, certain of the more obvious interrelations ofthe various species, and a few notes on the historic and geographicfeatures of the sand-prairie, can be given. The study is thereforepresented as an introductory account of the plant and animal associ-ations of Illinois sand-prairie. Field Studies. The field studies for the present work were made during the session of the University of Illinois at Havana, Mason County,. 5 Illinois,on the Illinois River, from June 20 to July 29, 1910, aspart of coursee in faunistic zoology, under the direction of C. Adams and Professor Frank Smith, and in plant ecology, underDr. H. A. Gleason. Nearly all the field v;ork was done at the Devils;Hole, an area of almost pure sand east of Havana. One excursion tothe Devils Neck, a much larger sand area north of Topeka was made,and also a few reconnaissance trips to other points in the sand re-gion. A second visit to Havana was made in the fall (October 3-9),several days being devoted to the sand-prairie at that , and athird trip in the spring (March 31- April 10, 1911). Emphasis waslaid on collection and preservation of specimens, and observation,from the ecological standpoint, of food habits, local distribution,status within the association, and other features, for each attention v/as given to the insects than to all the other groupsof ; th
Size: 1332px × 1875px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidassocia, booksubjecttheses
