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

\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

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

Analysis of Uncharacterized mKiaa1211 Expression during Mouse Development and Cardiovascular Morphogenesis

Mammalian Kiaa1211 and Kiaa1211-like are a homologous pair of uncharacterized, highly conserved genes cloned from fetal and adult brain cDNA libraries. Herein we map the in utero spatiotemporal expression of mKiaa1211 and mKiaa1211L mRNA and their expression patterns in postnatal testis, skin, gastrointestinal, and adipose progenitor tissues. Significantly, mKiaa1211 is present throughout the early stages of mouse heart development, particularly in the second heart field (SHF) lineage as it differentiates from mesenchymal cells into cardiomyocytes. We also show that mKiaa1211 is expressed within several early neuronal tissues destined to give rise to central, peripheral, and sympathetic nervous system structures. Expression profiling revealed that the paralog mKiaa1211L is not expressed during the normal developmental process and that mKiaa1211 expression was noticeably absent from most adult terminally differentiated tissues. Finally, we confirm that a previously uncharacterized CRISPR/CAS-generated mKiaa1211 mouse mutant allele is hypomorphic

NCAR telemetry and command system

The development of a pulse code modulation data encoder, a computerized ground station, and a PCM command system for obtaining and reproducing data from a balloon-borne experiment is discussed. The components of the system and the manner of operation are described. The capabilities and limitations of the system are analyzed

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.

\u3ci\u3eCryptopygus Bipunctatus\u3c/i\u3e (Collembola: Isotomidae) in North America, and \u3ci\u3eC. Posteroculatus\u3c/i\u3e N. Comb.

Specimens of Cryptopygus bipunctatus are reported and described from North America (Michigan) for the first time. The species is easily recognized by its lack of color, one pair of ocelli on black eyespots, and one flair of ventral manubrial setae. Michigan and European specimens are very· similar. A very similar Polish species, Isotomina posteroculata, is transferred to Cryptopygus

Diagnostic Alleles From Electrophoresis Distinguish Two Noctuid Pest Species, \u3ci\u3eHydraecia Immanis\u3c/i\u3e and \u3ci\u3eH. Micacea\u3c/i\u3e (Lepidoptera: Noctuidae).

Native hop vine borer (Hydraecia immanis) and introduced potato stem borer (H. micacea) populations in Midwest corn have reached noticeable levels near the Great Lakes plant community ecotone between boreal forests and temperate deciduous forests. The hop vine borer is more specialized in its diet and occurs in corn generally south of the plant community ecotone, whereas the potato stem borer is polyphagous and occurs in corn mostly north of the Great Lakes plant transition zone. We analyzed the genetic composition of each species using cellulose acetate electrophoresis and resolved 19 loci of which 6 exhibited fixed or nearly fixed allelic differences. We expect that this will be useful in determining the degree of hybridization where the two species become sympatric due to expected continued range expansions in Michigan, Wisconsin, and New York State

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