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Full-Text Articles in Life Sciences
Phylogeny And Population Genetic Analyses Reveals Cryptic Speciation In The Bombus Fervidus Species Complex (Hymenoptera: Apidae), Jonathan B. Koch, Juanita Rodriguez, James P. Pitts, James P. Strange
Phylogeny And Population Genetic Analyses Reveals Cryptic Speciation In The Bombus Fervidus Species Complex (Hymenoptera: Apidae), Jonathan B. Koch, Juanita Rodriguez, James P. Pitts, James P. Strange
Ecology Center Publications
Bumble bees (Bombus Latrielle) are significant pollinators of flowering plants due to their large body size, abundant setae, and generalist foraging strategies. However, shared setal coloration patterns among closely and distantly related bumble bee species makes identification notoriously difficult. The advent of molecular genetic techniques has increased our understanding of bumble bee evolution and taxonomy, and enables effective conservation policy and management. Individuals belonging to the North American Bombus fervidus species-complex (SC) are homogenous in body structure but exhibit significant body color phenotype variation across their geographic distribution. Given the uncertainty of the genealogical boundaries within the SC, some …
South American Leaf-Cutter Bees (Genus Megachile) Of The Subgenera Rhyssomegachile And Zonomegachile, With Two New Subgenera (Hymenoptera: Megachilidae), Víctor H. González, Terry Griswold, Michael S. Engel
South American Leaf-Cutter Bees (Genus Megachile) Of The Subgenera Rhyssomegachile And Zonomegachile, With Two New Subgenera (Hymenoptera: Megachilidae), Víctor H. González, Terry Griswold, Michael S. Engel
All PIRU Publications
Leaf-cutter bees (genus Megachile Latreille) are among the most common and diverse group of bees. However, the identity and taxonomic placement of many species are problematic and species identification is often difficult. Some species are known only from a single specimen or from one of the sexes, and identification keys are not available for many groups. We address these taxonomic issues for the subgenera Rhyssomegachile Mitchell and Zonomegachile Mitchell, two poorly known South American lineages of leaf-cutter bees. We provide comparative diagnoses, redescriptions, illustrated identification keys, new geographical records, and designate needed neotypes for Megachile cara Mitchell, M. gigas Schrottky, …
Deciphering The Biology Of Cryptophyllachora Eurasiatica Gen. Et Sp. Nov., An Often Cryptic Pathogen Of An Allergenic Weed, Ambrosia Artemisiifolia, Levente Kiss, Gábor M. Kovács, Károly Bóka, Gyula Bohár, Krisztina Varga Bohárné, Márk Z. Németh, Susumu Takamatsu, Hyeon-Dong Shin, Vera Hayova, Claudia Nischwitz, Marion K. Seier, Harry C. Evans, Paul F. Cannon, Gavin James Ash, Roger G. Shivas, Heinz Müller-Schärer
Deciphering The Biology Of Cryptophyllachora Eurasiatica Gen. Et Sp. Nov., An Often Cryptic Pathogen Of An Allergenic Weed, Ambrosia Artemisiifolia, Levente Kiss, Gábor M. Kovács, Károly Bóka, Gyula Bohár, Krisztina Varga Bohárné, Márk Z. Németh, Susumu Takamatsu, Hyeon-Dong Shin, Vera Hayova, Claudia Nischwitz, Marion K. Seier, Harry C. Evans, Paul F. Cannon, Gavin James Ash, Roger G. Shivas, Heinz Müller-Schärer
Biology Faculty Publications
A little known, unculturable ascomycete, referred to as Phyllachora ambrosiae, can destroy the inflorescences of Ambrosia artemisiifolia, an invasive agricultural weed and producer of highly allergenic pollen. The fungus often remains undetectable in ragweed populations. This work was conducted to understand its origin and pathogenesis, a prerequisite to consider its potential as a biocontrol agent. The methods used included light and transmission electron microscopy, nrDNA sequencing, phylogenetic analyses, artificial inoculations, and the examination of old herbarium and recent field specimens from Hungary, Korea, Ukraine and USA. The Eurasian and the North American specimens of this fungus were to …