1,455 research outputs found
Challenging Colorblind Education: A Descriptive Analysis of Teacher Racial Attitudes
Research suggests that many public school teachers are not prepared to deal with the growing number of diverse students in the schools. Questions are raised by researchers about the ability of the current teaching force to adequately meet the needs of the growing number of students of Color in the schools. Small-scale qualitative studies find that many White teachers feel unsure of their ability to teach students of Color, tend to hold stereotypical beliefs about urban students and/ or students of Color, and tend to use cultural deficiency models for explaining their academic performance. To date, no quantitative studies have attempted to systematically measure the racial attitudes of teachers as a group in the United States. This paper provides a descriptive analysis of White teachers’ racial attitudes with an attempt to understand how these attitudes differ from the attitudes of the general public. Results indicate that generally teachers have racial attitudes that are similar to the general public, however teachers hold less tolerant attitudes when it comes to measures of equal treatment and social distance compared to nonteachers
Two new orchid bees of the subgenus Euglossella from Peru
This is the publisher's version, copyright by Akademie Verlag.Two new orchid bees of Euglossa subgenus Euglossella (A pinae: Euglossini) are described and figured from Peru. Both Euglossa (Euglos sella) cosmodora sp. n. and E. (E.) urarina sp. n. belong to the decorata species group (i.e., the clade superficially resembling stingless bees of the genus Melipona) of Euglossella and are distinguished from their congeners as well as each other
Revision of the orchid bee subgenus Euglossella (Hymenoptera, Apidae), Part I, The decorata species group
This is the publisher's version, also available electronically from http://www.pensoft.net.Euglossella, one of the most distinctive subgenera of orchid bees of the genus Euglossa, is composed of two characteristic assemblages of species, one of them comprising bees bearing the strongly metallic integument trademark of the genus (viridis species group), and the other consisting of bees with a brown integument shaded with metallic iridescence (decorata species group). Here we provide the first of two parts of a revision of Euglossella, providing diagnostic definitions for the subgenus, the decorata species group, and all the species included therein. Six species are included in the decorata group, one new: Euglossa (Euglossella) aurantia, sp. n.; E. (E.) apiformis Schrottky, resurrected status; E. (E.) decorata Smith, revised status; E. (E.) singularis Mocsáry, revised status; E. (E.) cosmodora Hinojosa-DĂaz and Engel; and E. (E.) perpulchra Moure and Schlindwein. Euglossa meliponoides Ducke and E. urarina Hinojosa-DĂaz and Engel are newly synonymized under E. decorata, E. decorata ruficauda Cockerell is synonymized under E. singularis, and a neotype is designated for E. apiformis
Revision of the orchid bee subgenus Euglossella (Hymenoptera: Apidae), part II: The viridis and mandibularis species groups
This is the publisher's version, also available electronically from https://journals.ku.edu/index.php/melittology/article/view/4777.The second and final part of a revision of the subgenus Euglossella Moure in the orchid bee genus Euglossa Latreille (Apinae: Euglossini) is presented here, redefining the species groups within it to comply with current morphological and molecular phylogenetic hypotheses. We present a fully illustrated account of the species comprising the newly defined viridis and mandibularis species groups, with comparable diagnoses for all species, keys to the new scheme of species groups within the subgenus, and keys for males and females to the species of the two groups here treated. The viridis group as presented here is composed of 12 species, five of them newly described — Euglossa (Euglossella) celiae Hinojosa-DĂaz & Engel, new species, E. (E.) subandina Hinojosa-DĂaz & Engel, new species, E. (E.) cetera Hinojosa-DĂaz & Engel, new species, E. (E.) cupella Hinojosa-DĂaz & Engel, new species, and E. (E.) ashei Hinojosa-DĂaz & Engel, new species — and one resurrected from synonymy as E. (E.) azurea Ducke. Euglossa (Euglossella) viridis (Perty), E. (E.) cyanea Friese, E. (E.) polita Ducke, E. (E.) perviridis Dressler, E. (E.) cyanura Cockerell, and E. (E.) granti Cheesman comprise the remaining species within the group. Females of E. perviridis are described for the first time. The mandibularis group includes three species — E. (E.) mandibularis Friese, E. (E.) bigibba Dressler, and E. (E.) perfulgens Moure. In total, considering the six species previously included in the decorata group, the subgenus now includes a total of 21 species. New country records are presented for E. viridis, E. perviridis, and E. mandibularis. Notes on morphological variation and distribution are included as is a summary of known chemical attractants and floral substrates
Juxtocellar Structures in Euglossine Bees: A New Character for Corbiculate Studies (Hymenoptera: Apidae).
Es wird eine neuartige morphologische Struktur bei Prachtbienen (Apinae: Euglossini) dargestellt. Diese findet sich posterolateral der Ocelli und wird als “Juxtocellarstruktur” bezeichnet. Sie wird in ihrer Ausprägung bei den Euglossinen beschrieben. Homologe Strukturen wurden bei verschiedenen verwandten Gruppen von Apidae gefunden, z. B. bei Anthophorini, Centridini und Eucerini, während sie bei anderen fehlen, z. B. bei Xylocopinae und Nomadinae. Bemerkenswerterweise sind Juxtocellarstrukturen verlorengegangen als Apomorphie bei allen anderen korbikulaten Triben der Apidae (darunter die Bombini, Meliponini, Apini, Electrobombini, Electrapini und Melikertini), ein Merkmalsmuster, das mit den aktuellen phylogenetischen Hypothesen dieser Gruppe ĂĽbereinstimmt.ResumenSe describe e ilustra una estructura morfolĂłgica nueva para abejas de las orquĂdeas (Apidae: Euglossini). Estas diminutas estructuras, aquĂ nombradas “estructuras yuxtaocelares”, se ubican posterolateralmente a los ocelos. Se describe la diversidad de su forma dentro de Euglossini. Estructuras homĂłlogas fueron encontradas en algunos linajes relacionados de abejas de la familia Apidae (Anthophorini, Centridini, Eucerini), mientras que en otros las estructuras estuvieron ausentes (Xylocopinae, Nomadinae). De manera relevante las estucturas yuxtaocelares se hallan apomĂłrficamente ausentes en todas las otras tribus de abejas con corbĂcula (Bombini, Meliponini, Apini, Electrobombini, Electrapini y Melikertini), lo cual concuerda con hipĂłtesis filogenĂ©ticas actuales para este grupo.StichwörterApoidea, Anthophila, comparative morphology, Euceriti, Apiti, phylogeny.A new morphological structure is described and figured for orchid bees (Apinae: Euglossini). These minute features are located posterolateral to the ocelli and are termed “juxtocellar structures”. The diversity of their form across Euglossini is described. Homologous structures were found in some related lineages of apid bees (e.g., Anthophorini, Centridini, Eucerini) while in others the structures were absent (e.g., Xylocopinae, Nomadinae). Most notably juxtocellar structures are apomorphically lost in all other corbiculate apine tribes (i.e., Bombini, Meliponini, Apini, Electrobombini, Electrapini, and Melikertini), a pattern which is in accordance with current phylogenetic hypotheses for the clade.ResumenSe describe e ilustra una estructura morfolĂłgica nueva para abejas de las orquĂdeas (Apidae: Euglossini). Estas diminutas estructuras, aquĂ nombradas “estructuras yuxtaocelares”, se ubican posterolateralmente a los ocelos. Se describe la diversidad de su forma dentro de Euglossini. Estructuras homĂłlogas fueron encontradas en algunos linajes relacionados de abejas de la familia Apidae (Anthophorini, Centridini, Eucerini), mientras que en otros las estructuras estuvieron ausentes (Xylocopinae, Nomadinae). De manera relevante las estucturas yuxtaocelares se hallan apomĂłrficamente ausentes en todas las otras tribus de abejas con corbĂcula (Bombini, Meliponini, Apini, Electrobombini, Electrapini y Melikertini), lo cual concuerda con hipĂłtesis filogenĂ©ticas actuales para este grupo.KeywordsApoidea, Anthophila, comparative morphology, Euceriti, Apiti, phylogeny
Two new orchid bees of the subgenus Euglossella from Peru (Hymenoptera: Apidae).
Aus Peru werden zwei neue Prachtbienen-Arten der Gattung Euglossa, Subgenus Euglossella, (Apinae: Euglossini) beschrieben und dargestellt. Beide Arten, Euglossa (Euglossella) cosmodora sp. n. wie E. (E.) urarina sp. n., gehören der Euglossella-decorata-Gruppe an (ein Taxon, das oberflächlich an Stachellose Bienen der Gattung Melipona erinnert) und werden sowohl in der Gattung wie gegeneinander charakterisiert.StichwörterApoidea, Anthophila, Apinae, Euglossini, Peru, taxonomy.Nomenklatorische Handlungencosmodora Hinojosa-DĂaz & Engel, 2007 (Euglossa (Euglossella)), spec. n.urarina Hinojosa-DĂaz & Engel, 2007 (Euglossa (Euglossella)), spec. n.Two new orchid bees of Euglossa subgenus Euglossella (Apinae: Euglossini) are described and figured from Peru. Both Euglossa (Euglossella) cosmodora sp. n. and E. (E.) urarina sp. n. belong to the decorata species group (i.e., the clade superficially resembling stingless bees of the genus Melipona) of Euglossella and are distinguished from their congeners as well as each other.KeywordsApoidea, Anthophila, Apinae, Euglossini, Peru, taxonomy.Nomenclatural Actscosmodora Hinojosa-DĂaz & Engel, 2007 (Euglossa (Euglossella)), spec. n.urarina Hinojosa-DĂaz & Engel, 2007 (Euglossa (Euglossella)), spec. n
Juxtocellar Structures in Euglossine Bees: A New Character for Corbiculate Studies
This is the publisher's version, copyright by Akademie Verlag.A new morphological structure is described and figured for orchid bees (Apinae: Euglossini). These minute features are located posterolateral to the ocelli and are termed "juxtocellar structures". The diversity of their form across Euglossini is described. Homologous structures were found in some related lineages of apid bees {e.g., Anthophorini, Centridini, Eucerini) while in others the structures were absent {e.g., Xylocopinae, Nomadinae). Most notably juxtocellar structures are apomorphically lost in all other corbiculate apine tribes {i.e., Bombini, Meliponini, Apini, Electrobombini, Electrapini, and Melikertini), a pattern which is in accordance with current phylogenetic hypotheses for the clade
Euglossa williamsi, a new species of orchid bee from the Amazon Basin of Ecuador and Peru, with notes on its taxonomic association and biogeography (Hymenoptera, Apidae)
This is the publisher's version, also available electronically from http://www.pensoft.net.Euglossa williamsi sp. n. is here described from the lowland Amazonian region in Ecuador and Peru, and as part of a small species assemblage within Euglossa consisting of E. dodsoni Moure and E. obtusa Dressler. An identification key to the males of the group is provided plus detailed figures of the new species and representative illustrations for the others. A brief discussion of the taxonomic and biogeographical implications of the new species is provided. New records in Honduras and Nicaragua are provided for the related E. dodsoni
Revision of the orchid bee subgenus Euglossella (Hymenoptera: Apidae), part II: The viridis and mandibularis species groups
This is the published version.The second and final part of a revision of the subgenus Euglossella Moure in the orchid bee genus Euglossa Latreille (Apinae: Euglossini) is presented here, redefining the species groups within it to comply with current morphological and molecular phylogenetic hypotheses. We present a fully illustrated account of the species comprising the newly defined viridis and mandibularis species groups, with comparable diagnoses for all species, keys to the new scheme of species groups within the subgenus, and keys for males and females to the species of the two groups here treated. The viridis group as presented here is composed of 12 species, five of them newly described — Euglossa (Euglossella) celiae Hinojosa-DĂaz & Engel, new species, E. (E.) subandina Hinojosa-DĂaz & Engel, new species, E. (E.) cetera Hinojosa-DĂaz & Engel, new species, E. (E.) cupella Hinojosa-DĂaz & Engel, new species, and E. (E.) ashei Hinojosa-DĂaz & Engel, new species — and one resurrected from synonymy as E. (E.) azurea Ducke. Euglossa (Euglossella) viridis (Perty), E. (E.) cyanea Friese, E. (E.) polita Ducke, E. (E.) perviridis Dressler, E. (E.) cyanura Cockerell, and E. (E.) granti Cheesman comprise the remaining species within the group. Females of E. perviridis are described for the first time. The mandibularis group includes three species — E. (E.) mandibularis Friese, E. (E.) bigibba Dressler, and E. (E.) perfulgens Moure. In total, considering the six species previously included in the decorata group, the subgenus now includes a total of 21 species. New country records are presented for E. viridis, E. perviridis, and E. mandibularis. Notes on morphological variation and distribution are included as is a summary of known chemical attractants and floral substrates
Alloglossura, a new subgenus of the orchid bee genus Euglossa (Hymenoptera: Apidae), with a review of the included species
With the availability of phylogenetic hypotheses for the orchid bee genus Euglossa Latreille (Apinae: Euglossini), the infrageneric classification for the genus is reconsidered. One of the major findings from phylogenetic studies for the group is the paraphyly of the subgenus Glossurella Dressler, although an assemblage largely congruent with the “gorgonensis” group within Glossurella is consistently recovered as monophyletic with minor differences depending on morphological versus molecular inferences. Here we present a revision of this clade under the new subgeneric name Alloglossura. The group as here proposed consists of seven species: Euglossa (Alloglossura) samperi RamĂrez, E. (A.) trinotata Dressler, E. (A.) gorgonensis Cheesman, E. (A.) oleolucens Dressler, E. (A.) fuscifrons Dressler, E. (A.) nigrosignata Moure, and E. (A.) paisa RamĂrez. Diagnoses are provided for all of the included species, and detailed descriptions and figures are given for all except E. (A.) paisa. A key is provided for the identification of males. The previously unknown females for E. samperi and E. fuscifrons are described for the first time, and E. gorgonensis erythrophana Dressler is newly synonymized with E. gorgonensis s. str. A phylogenetic hypothesis for relationships within the subgenus is also presented
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