1,850 research outputs found
A new species of Stenorrhachus McLachlan from Chile (Neuroptera: Nemopteridae) with biological notes
A new species of Stenorrhachus (McLachlan), S. chilensis (Neuroptera: Nemopteridae), is described from Chile with biological observations of Stenorrhachus walkeri (McLachlan). A key to the two species is provided as well as diagnoses of the adults and of the larva of Stenorrhachus walkeri.Se describe una especie nueva de Stenorrhachus (McLachlan), S. chilensis (Neuroptera: Nemopteridae), de Chile con notas biológicas sobre Stenorrhachus walkeri (McLachlan). Se da una clave para las dos especies además descripciones de los adultos y de la larva de S. walkeri
Antlions of Hispaniola (Neuroptera: Myrmeleontidae)
Twelve extant species of antlions are known from Hispaniola including four new species (Eremoleon petrophila, Eremoleon phasma, Purenleon nunezi, Purenleon woodruffi) and one new genus (Peruveleon). Five New World species are transferred into Peruveleon resulting in new combinations: Peruveleon bruneri (Alayo), Peruveleon camposi (Banks), Peruveleon dolichogaster (Navás), Peruveleon dorsalis (Banks), Peruveleon indiges (Walker). Vella fallax haitiensis Smith is considered a new synonym of Vella eggerti Esben-Petersen. Descriptions and records for the species are provided as well as keys to the adults and larvae. The larvae of eleven species were found and reared.Se documentan doce especies de Myrmeleontidae de Hispaniola incluyendo cuatro especies nuevas (Eremoleon petrophila, Eremoleon phasma, Purenleon nunezi, Purenleon woodruffi) y un género nuevo (Peruveleon). Cinco especies son transferidos al género Peruveleon resultando nuevas combinaciones: Peruveleon bruneri (Alayo), Peruveleon camposi (Banks), Peruveleon dolichogaster (Navás), Peruveleon dorsalis (Banks), Peruveleon indiges (Walker). Vella fallax haitiensis Smith es considerado como un sinonimo nuevo de Vella eggerti Esben-Petersen. Se proporcionan descripciones y registros para las especies y claves para los adultos y larvas. Las larvas de once especies fueron descubiertas y asociadas con adultos
Description of a new species of Paranthaclisis Banks from Florida (Neuroptera: Myrmeleontidae)
A new species of Paranthaclisis Banks, P. floridensis (Neuroptera: Myrmeleontidae), is described from Florida and compared to the other described species in the genus. Keys to the adults and larvae are provided.Se describe una nueva especie de Paranthaclisis Banks, P. floridensis (Neuroptera: Myrmeleontidae), de Florida y se la incluye en una clave para las otras especies descriptas del género. Se da una descripción del adulto y de la larva
A revision of the genus Maracandula Currie (Neuroptera: Myrmeleontidae)
Three new species of Maracandula are described from Mexico and included in a key to the five species in Mexico. Diagnoses of the species are given as well as distributional data.Se describen tres especies nuevas de Maracandula de Mexico y se incluye una clave de las cinco especies conocidas de Mexico
The cave mouth antlions of Australia (Neuroptera: Myrmeleontidae)
Larvae of thirty one species of antlions (Neuroptera: Myrmeleontidae) belonging to eleven genera live in the protection of cave mouths or large rock overhangs in Australia. New taxa proposed here include the following three new genera: Australeon, Newleon, Speleon. The following twelve new species are described: Froggattisca kakadu; Froggattisca rennerensis; Newleon fragilis; Speleon cavernicolus; Speleon pilliga; Speleon yallingup; Stenoleon xanthopsis; Xantholeon cavernicolus; Xantholeon kakadu; Xantholeon newi; Xantholeon pallens; Xantholeon pentlandensis. Two cave species are transferred into a new genus becoming new combinations: Australeon illustris (Gerstaecker), Australeon manselli (New and Matsura). The small non-cave species previously placed in Stenoleon Tillyard are transferred to Bandidus Navás, becoming B. gradostriatus (New), B. copleyensis (New), B. grandithecus (New), and B. navasi (New), new combinations. All known species of six genera (Stenoleon Tillyard, Xantholeon Tillyard, Eophanes Banks and three new genera) are known only in cave mouths. Also, species of Heoclisis Navás, Froggattisca Esben Petersen, Glenoleon Banks, Heoclisis Navás and Myrmeleon Linnaeus contain species living in cave mouths. Two main types of caves are found in Australia; those with loose organic material and those with loose inorganic material. The cave habitat is divided into four zones and several subzones. Many species are restricted to one zone or another but species of Stenoleon may overlap zones. Discussions of the species and some of their biological requirements are provided. One new parasite record is given, an undetermined species of Echthrobacella Girault (Hymenoptera: Encyrtidae) reared from the larvae of Speleon yallingup Miller and Stange. Diagnoses or descriptions are given for all of these cave species including distributional data. Keys to the cave mouth inhabiting antlions of Australia (adults and larvae) are provided including a revised key to the Xantholeon Tillyard.Se documentan treinta uno especies en once géneros de Myrmeleontidae que viven en las entradas de cuevas en Australia y representan mas especies que en cualquier otra parte del mundo. Se describen tres genéros nuevos, Australeon, Newleon, y Speleon y doce especies nuevas: Froggattisca kakadu; Froggattisca rennerensis; Newleon fragilis; Speleon cavernicolus; Speleon pilliga; Speleon yallingup; Stenoleon xanthopsis; Xantholeon cavernicolus; Xantholeon kakadu; Xantholeon newi; Xantholeon pallens y Xantholeon pentlandensis. Dos especies son transferidas en un nueva género resultando en dos combinaciones nuevas: Australeon illustris (Gerstaecker) y Australeon manselli (New and Matsura). Tambien, cuatro especies en el género Stenoleon Tillyard son transferidas al género Bandidus Navas, resultando en cuatro combinaciones nuevas: B. gradostriatus (New), B. copleyensis (New), B. grandithecus (New) y B. navasi (New). Hay dos tipos de cuevas en Australia, unas con detritus orgánicos y otras con detritus principalmente inorgánicas. En algunas cuevas existen cuatro principales zonas de habitación. Todas las especies de cinco géneros (Eophanes Banks, Stenoleon Tillyard, Xantholeon Banks y tres nuevos géneros) están restringidas a las cuevas. Se da un registro nuevo para un parásito, Echthrobacella Girault (Hymenoptera: Encyrtidae) criada de Speleon yallingup Miller and Stange. Se presentan diagnoses o descripciones para todas las especies incluyendo datos sobre distribucion. Se presentan claves para los adultos y larvas de las especies que viven dentro de las cuevas en Australia, incyudendo una clave revisada del genero Xantholeon
Trust and Control in Virtual Teams: Unraveling the impact of Team Awareness Systems in Virtual Teams
The inability to convey contextual knowledge has proven to be harmful to the development of trust in virtual teams. Awareness systems have been offered as a way to provide contextual information and promote trust. However, awareness systems allow both team members and supervisors the ability to monitor virtual team members. Monitoring is a form of control and the relationship between trust and control is not well understood. Prior literature indicates that control can both impact the development of trust and alter the effects of trust. In some cases, control helps, hurts, or has no effect on the development and influence of trust. This position paper argues that a clear understanding of control and trust is needed to fully comprehend the implications of awareness systems.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/135720/1/CSCW-2013-Robert-Position-Paper-Final-Submission-01-02-13-08-50-15.pd
Human-Robot Interaction in Groups: Theory, Method, and Design for Robots in Groups
For the last decade, robots have been adopted into group work
ranging from corporate offices to military operations. While
robotic technology has matured enough to allow robots to act as
team members, our understanding of how this alters group work is
limited. In particular, little work has examined how the adoption
of robots might alter group processes and outcomes. The purpose
of this workshop is to bring together researchers investigating
issues related to the theoretical frameworks and methodological
approaches to studying human robot interactions within groups.
We expect the workshop will contribute to our understanding of
how to better design robots for group interactions.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/116271/1/p310.pd
Monitoring and Trust in Virtual Teams
This study was conducted to determine whether monitoring moderated the impact of trust on the project performance of 57 virtual teams. Two sources of monitoring were examined: internal monitoring done by team members and external monitoring done by someone outside of the team. Two types of trust were also examined: affective-based trust, or trust based on emotion; and cognitive trust, or trust based on competency. Results indicate that when internal monitoring was high, affective trust was associated with increases in performance. However, affective trust was associated with decreases in performance when external monitoring was high. Both types of monitoring reduced the strong positive relationship between cognitive trust and the performance of virtual teams. Results of this study provide new insights about monitoring and trust in virtual teams and inform both theory and design.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/116032/1/Robert CSCW 2016.pd
A Multi-level Analysis of the Impact of Shared Leadership in Diverse Virtual Teams
Although, organizations are using more virtual teams to
accomplish work, they are finding it difficult to use
traditional forms of leadership to manage these teams.
Many organizations are encouraging a shared leadership
approach over the traditional individual leader. Yet, there
have been only a few empirical studies directly examining
the effectiveness of such an approach and none have taken
into account the team diversity. To address this gap, this
paper reports the results of an empirical examination of the
impacts of shared leadership in virtual teams. Results
confirm the proposed research model. The impacts of
shared leadership are multilevel and vary by race and
gender. In addition, while shared leadership promotes team
satisfaction despite prior assumptions, it actually reduces
rather than increases team performance.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/116270/1/Robert 2013.pd
Healthy Divide or Detrimental Division? Subgroups in Virtual Teams
Subgroup formation, the emergence of smaller groups within teams, has been found to be detrimental to teamwork in virtual teams. Recently, however, an alternative view of the effects of subgroup formation proposes that the formation of subgroups is not always bad. When subgroups are based on identity characteristics like race and gender they are likely to have negative effects, but when they are not, subgroups can have positive effects on teamwork. This paper empirically examines this proposition. Results of our study generally support the proposed assertion. When subgroups are not based on race or gender they are positively associated with perceptions of social integration and open communication. However, when they are based on race and gender they are negatively associated with perceptions of social integration and open communication. The implications of this study demonstrate that subgroups may in many cases be beneficial rather than detrimental to virtual teams.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/111876/1/A Healthy Divide or Detrimental Division JCIS Forthcoming (Posted to Deep Blue and Research Gate).pdfDescription of A Healthy Divide or Detrimental Division JCIS Forthcoming (Posted to Deep Blue and Research Gate).pdf : Main Articl
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