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Articles 541 - 570 of 598

Full-Text Articles in Entomology

The Mayfly Newsletter, Peter M. Grant Jun 1999

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


The Mayfly Newsletter, Peter M. Grant Jan 1999

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


The Mayfly Newsletter, Peter M. Grant Jun 1998

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


Spatial Partitioning Of Hosts (Thomomys Bottae) By Parasitic Chewing Lice Of The Genera Geomydoecus And Thomomydoecus, Melanie Ann Babin May 1998

Spatial Partitioning Of Hosts (Thomomys Bottae) By Parasitic Chewing Lice Of The Genera Geomydoecus And Thomomydoecus, Melanie Ann Babin

Honors Capstones

No abstract provided.


The Mayfly Newsletter, Peter M. Grant Dec 1997

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


The Mayfly Newsletter, Peter M. Grant Jun 1997

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


Homology Among The Autosomal Chromosomes Of Boophilus Annulatus (Say) And B. Microplus (Canestrini), Bonnie S. Gunn May 1997

Homology Among The Autosomal Chromosomes Of Boophilus Annulatus (Say) And B. Microplus (Canestrini), Bonnie S. Gunn

Theses and Dissertations - UTB/UTPA

Autosomes of Boophilus annulatus and B. microplus were compared using C- and G-bands to establish the degree of homology. Karyotypes of both species consisted of 20 autosomes and an XX:XO sex determination system with the X being the largest chromosome. All chromosomes of B. annulatus were acrocentric with heterochromatin limited to centromeric regions. The B. microplus karyotype was acrocentric with one band of noncentromeric heterochromatin occurring in three chromosome pairs. Interspecific comparisons indicated seven pairs of G-band homologous autosomes and three G-band homologous pairs when added interstitial heterochromatin was considered. The number three chromosome of both species showed variation in …


Analysis Of Gene Expression During Embryonic Development In Mulberry Silkworm Bombyx Mori, Amit Singh, K. P. Gopinathan Feb 1997

Analysis Of Gene Expression During Embryonic Development In Mulberry Silkworm Bombyx Mori, Amit Singh, K. P. Gopinathan

Biology Faculty Publications

We have developed a method for dechorionation and devitellinization of the silkworm eggs without damage, to facilitate the analysis of gene expression during embryonic development of Bombyx mori. Making use of antibodies available from heterologous systems, the spatio-temporal expression patterns of peroxidase and proliferating cell nuclear antigen have been directly visualized in whole mount embryos at various stages of development without the need for generating transformed ·lines carrying specific reporter constructs. The B. mori system, previously unamenable for such studies, could thus serve as an attractive model for molecular analysis of insect development.

The attention lavished on Drosophila melanogaster as …


Problems With The Interpretation Of Mark-Release-Recapture Data In Subterranean Termites (Isoptera: Rhinotermitidae), Anthony D. Curtis, Deborah A. Waller Jan 1997

Problems With The Interpretation Of Mark-Release-Recapture Data In Subterranean Termites (Isoptera: Rhinotermitidae), Anthony D. Curtis, Deborah A. Waller

Biological Sciences Faculty Publications

The Lincoln index (Peterson method) is frequently used to estimate animal population size in mark-release-recapture studies. We tested the accuracy of this method to estimate termite colony size using logs infested with termites that were maintained in the laboratory. Termites were fed paper towels dyed either with 0.05% or 0.1% (w/w) of the dye marker Nile blue and released into their host logs in the laboratory. Following recapture a week later, estimates of termite population size for termites dyed with 0.05% Nile blue, and were approximately 3 times greater for termites dyed with 0.1% Nile blue. Concentrations of 0.1% Nile …


The Mayfly Newsletter, Peter M. Grant Dec 1996

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


The Mayfly Newsletter, Peter M. Grant May 1996

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


Geographic Variation Of S̲O̲R̲E̲X̲ C̲I̲N̲E̲R̲E̲U̲S̲ In West Virginia, Lisa Jane Gatens Jan 1996

Geographic Variation Of S̲O̲R̲E̲X̲ C̲I̲N̲E̲R̲E̲U̲S̲ In West Virginia, Lisa Jane Gatens

Theses, Dissertations and Capstones

The morphological and geographical diversity of Sorex cinereus is evident in West Virginia. In an attempt to identify patterns of morphological variation relative to age, sex, and geographic locality, and to clarify taxonomic status of the West Virginia soricids by defining diagnostic characters applicable to this area, a sample of 288 specimens representing three taxa were analyzed statistically. Standard external measurements were recorded, and a series of 12 cranial and dental characters were measured and recorded for each specimen. Morphological variation due to age was found in S. c. cinereus, but not in the smaller reference samples of S. …


The Mayfly Newsletter, Peter M. Grant Nov 1995

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


The Mayfly Newsletter, Peter M. Grant May 1995

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


The Mayfly Newsletter, Peter M. Grant Dec 1994

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


The Mayfly Newsletter, Peter M. Grant Jul 1994

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


Nectar-Seeking Visits By Butterflies In A Tallgrass Prairie Remnant In Eastern Nebraska, Tanya Bray Jan 1994

Nectar-Seeking Visits By Butterflies In A Tallgrass Prairie Remnant In Eastern Nebraska, Tanya Bray

Biology Faculty Publications

Stolley Prairie, a tallgrass virgin prairie remnant in eastern Nebraska, was visited 20 times between May 25 and August 14, 1988. Fifty-two species offorbs were observed in bloom during this period. Twenty-seven species of butterflies were observed and 21 species made 262 nectar-seeking visits to 21 plant species. While numbers offorbs in bloom did not strongly correlate with numbers of butterflies present, peaks of butterfly occurrence appeared to follow peaks of blossom abundance. The number of plant species utilized by a species of butterfly ranged from one to nine. Plants with an abundance of nectar such as common milkweed and …


The Mayfly Newsletter, Peter M. Grant Dec 1993

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


The Mayfly Newsletter, Peter M. Grant May 1993

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


The Mayfly Newsletter, Peter M. Grant Sep 1992

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


The Mayfly Newsletter, Peter M. Grant Mar 1992

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


The Mayfly Newsletter, Peter M. Grant Oct 1991

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


Vitellogenesis In Hyalomma Dromedarii (Acari: Ixodidae): A Model For Analysis Of Endocrine Regulation In Ixodid Ticks, Martin E. Schriefer Apr 1991

Vitellogenesis In Hyalomma Dromedarii (Acari: Ixodidae): A Model For Analysis Of Endocrine Regulation In Ixodid Ticks, Martin E. Schriefer

Theses and Dissertations in Biomedical Sciences

The egg yolk proteins, vitellins, and their hemolymph precursors, vitellogenins, were characterized in the ixodid tick Hyalomma dromedarii. Three vitellins were identified. The high molecular weight vitellins, VN A and VN B, were composed of seven homologous molecular weight subunit polypeptides, VN 1-7. VN A appears to be a dimeric form of VN B. VN C was composed of single polypeptide. Low levels of vitellogenin, were identified in western immunoblots utilizing antibody raised against purified vitellin. Adult protein and polypeptide profiles, including vitellin and vitellogenin, were characterized as a function of sex, tissue and reproductive development. Quantitative assessment of the …


The Mayfly Newsletter, Peter M. Grant Mar 1991

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


Factors Affecting Parental Investment Strategies In Male Waterbugs, Scott Kight Jan 1991

Factors Affecting Parental Investment Strategies In Male Waterbugs, Scott Kight

Department of Biology Faculty Scholarship and Creative Works

Male giant waterbugs (Belostoma flumineum Say) brood eggs oviposited on their dorsi by conspecific females. Preliminary observations indicate that viable egg pads are sometimes discarded before hatching. Theory predicts that such behavior should occur only if costs incurred by brooding exceed benefits of hatching the egg pad. The amount of paternal investment per pad should be similar for both large and small pad sizes, but as egg pads become smaller, investment per egg increases. Thus, smaller pads should be more likely to be discarded unhatched than larger ones. Similarly, egg pads containing inviable eggs should also be more frequently …


The Mayfly Newsletter, Peter M. Grant Aug 1990

The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.


An Annotated List Of The Butterflies Of Kansas, Charles A. Ely, Marvin D. Schwilling, Marvin E. Rolfs Jan 1986

An Annotated List Of The Butterflies Of Kansas, Charles A. Ely, Marvin D. Schwilling, Marvin E. Rolfs

Fort Hays Studies Series

This provisional list summarizes the information currently available on the distribution of the butterflies of Kansas. Presently, this information is widely scattered in the literature and numerous collections and is not readily available to many interested parties. The accompanying maps also demonstrate the many gaps in our present information and will hopefully stimulate further collecting and the production of a more complete list in the near future. This paper is based primarily on collections made by the authors during an intensive statewide survey begun in 1979. It is organized around the "county record," usually a voucher specimen housed at Fort …


Factors Affecting Feeding Injury To Grasses By Adult Billbugs (Coleoptera: Curculionidae), Dale C. Nielson May 1985

Factors Affecting Feeding Injury To Grasses By Adult Billbugs (Coleoptera: Curculionidae), Dale C. Nielson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Factors associated with feeding injury to grass plants by two species of adult billbugs, Sphenophorus gentilis and S. parvulus, were evaluated. Early season tests utilized adult bluegrass billbugs while later studies involved wildrye billbugs. Types of feeding injury were determined and preferred feeding locations on host plants were identified for each billbug species. Greenhouse and field studies compared different species of grasses, individual plants within a species, and plants from different locations, for billbug susceptibility. The effect of grass plant age and stem size were also tested using bluegrass billbugs.

Using analysis of variance and multiple comparison tests, significant …


Extrafloral Nectaries On Plants In Communities Without Ants: Hawaii, Kathleen H. Keeler Jan 1985

Extrafloral Nectaries On Plants In Communities Without Ants: Hawaii, Kathleen H. Keeler

School of Biological Sciences: Faculty Publications

Since the Hawaiian Islands lack native ants, it was hypothesized that extrafloral nectaries, an ant-related mutualistic trait, should be lacking on native species. Presence of extrafloral nectaries (EFNs) on plants was determined by direct observation and related to vegetation structure and floral composition. Frequency of plants with EFNs was low by all possible comparisons. However, several endemic species had functional EFNs. The hypotheses to explain these anomalies are (1) phylogenetic inertia or (2) mutualism with some other organism than ants.


Ecological And Evolutionary Considerations Of Large Scale Mosquito Control Programs, Harrison B. Tordoff Jan 1984

Ecological And Evolutionary Considerations Of Large Scale Mosquito Control Programs, Harrison B. Tordoff

Journal of the Minnesota Academy of Science

No abstract provided.