449 research outputs found
\u3ci\u3eSminthurus Mencenbergae,\u3c/i\u3e New Species from Canada and Michigan (Collembola: Sminthuridae)
A new species, Sminthurus (Sminthurus) mencenbergar Snider, is described from Canada and Michigan
Evaluation of Pit-trap Transects With Varied Trap Spacing in a Northern Michigan Forest
The study compared effects of four distances between traps (range 0.5-4.0 m) on arthropod captures. Twelve traps were aligned in each of four transects, and 20 samples. trap were obtained during summer and fall in a northern Michigan deciduous forest. Catches proved to be unaffected by trap spacing. Rather, they reflected local within-site differences in abundance of dominant species
An Annotated List of the Collembola (Springtails) of Michigan
Excerpt: When work began on the Michigan Collembolain 1959, the Entomology Museum at Michigan State University included only one specimen of the order in its catalog of insects. The University of Michigan had a few vials of specimens determined by Harlow B. Mills, and a modest number was in the Robert R. Dreisbach collection at Midland, Michigan.
At the beginning of my investigation very little was known about the order in Michigan, although monographs had been written on the collembolan faunae of the nearby s t a t e s of Minnesota (Guthrie, 1903), Iowa (Mills, 1934) and New York (Maynard, 1951). I expected to find species that had been recorded from surrounding areas, and hoped to find a few new to science. Both aims have been fulfilled. In addition, some European species are recorded from North America for the first time. These include Orchesella irregularilineata Stach, Tetracanthella montana Stach, Odontella lamellifera (Axelson), Sminthurinus bimaculatus Axelson, and Sminthrinus igniceps (Reuter). A new subspecific name i s proposed for Sminthurinus quadrimaculatus Maynard. The present paper lists 132 species and subspecies of 46 genera that occur in Michigan. New species will be described in the future.
The present work follows a style s i m i l a r to that of Sherman Moore\u27s A Revised Annotated List of the Butterflies of Michigan (1960), except that keys to the genera and species have been included. The taxonomy follows that of Salmon (1964); thus instead of the usual two suborders, four a r e recognized
New Species of Sminthuridae from North America (Collembola: Symphypleona)
(excerpt)
This account is the result of efforts by Drs. Kenneth Christiansen and Peter Bellinger to amass and examine the major collections of North American Collembola. Their work will culminate in a descriptive monograph on the Collembola-fauna of North America. The author agreed to describe part of the new species of Sminthuridae extracted from those collections. The analysis of specimens justifies erection of 17 species new to science
An Annotated List and New Species Descriptions of Collembola Found in the Project Elf Study Area of Michigan
An annotated list of 80 collembolan species taken from the ELF Project area in Dickinson County. Michigan, is presented. Two new species are described, a new record for the United States is established, and new records for Michigan\u27s Upper Peninsula are reported. Specimens were obtained using pitfall traps and extraction of liner and soil cores taken from deciduous forest.
Polykatianna Batchi: A New Species for North America (Collembola: Sminthuridae)
While examining a collection of Collembola from Illinois, I came across a small specimen which looked like an immature Katiannina (Maynard and Downs, 1951). Using Salmon\u27s key (1964), I traced the species to the tribe Katiannini, of which Katiannina is not a member. The species dealt with in this paper belongs to the genus Polykatianna Salmon (1946)
Culture Techniques for Rearing Soil Anthropods
Excerpt: Interest in soil biology has been prompted by recent investigations into the action of insecticides on plants and animals. Observations in the field must be supplemented by laboratory investigations conducted under controlled conditions. Consequently, it becomes necessary to rear and handle soil animals under artificial situations for bio-assay and life cycle studies. When large numbers of individuals are required, special problems in maintenance and manipulation arise. Relatively inexpensive and simple methods for such projects are essential and this paper describes some of those techniques which we have found expedient
Understanding Community Engagement Motives: A Functional Approach
Current theoretical lenses do not fully explain the motives of those involved in community engagement activities. This article introduces a needed additional lens, functionalism, that emphasizes how underlying personal goals explain involvement in community engagement activities. To illustrate this perspective, an administrator’s and a faculty member’s motives for becoming involved in community engagement activities are presented and analyzed. We conclude by suggesting the functional approach to motivation may be integrated within an organizational behavior framework to better illuminate the interaction between individual goals and organizational practices, policies, and norms
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