Author: Gibbs Jason Publisher: ISBN: 9781775571995 Category : Halictidae Languages : en Pages : 116
Book Description
The black species of weak-veined Lasioglossum (or Hemihalictus series) in eastern North America are revised to clarify their taxonomy and nomenclature and to facilitate identification. A subgeneric classification based upon available phylogenetic data is applied. Lasioglossum (Sphecodogastra) is applied more broadly than any previous usage to include many species typically classified as L. (Evylaeus). The subgenus L. (Evylaeus) is retained but applied narrowly in agreement with phylogenetic results. Lasioglossum (Hemihalictus) has historically been considered monotypic but is here applied to many species of L. (Dialictus) sensu lato (equivalent to the carinaless L. (Evylaeus) of some authors). Usage of L. (Dialictus) is restricted primarily to species with metallic integument. Additional subgeneric synonymies for extralimital taxa are formalized and discussed. Descriptions are provided for each species with a synonymic list, diagnosis, and notes on taxonomy and biology. The recently revised Onagraceae-specialist species of L. (Sphecodogastra) are given abbreviated treatments. Notes on available DNA barcode data are given, with diagnostic characters supplied for closely related species. One new species is described: L. (Sphecodogastra) seillean Gibbs and Packer and the males of L. fedorense (Crawford) and L. pectinatum (Robertson) are described for the first time. The following three new synonymies are proposed: Lasioglossum (Hemihalictus) sopinci (Crawford), senior subjective synonym of Evylaeus bradleyi Mitchell; Lasioglossum (Hemihalictus) macoupinense (Robertson), senior subjective synonym of Halictus divergens Lovell; and Lasioglossum (Hemihalictus) inconditum (Cockerell), senior subjective synonym of Halictus tracyi Cockerell. Lasioglossum inconditum is here considered to be distinct from the Palaearctic species L. rufitarse (Zetterstedt). A lectotype is designated for Halictus quebecensis Crawford. We present the first record of L. lustrans (Cockerell) and L. swenki (Crawford) in Canada and the first record of L. lusorium (Cresson) east of the Mississippi River. Updated keys to species are provided for the fauna of eastern North America.
Author: Olivia Messinger Carril Publisher: Princeton University Press ISBN: 0691175497 Category : Nature Languages : en Pages : 288
Book Description
"Bees play an essential role in the pollination of native plants and agricultural crops across the globe. In North America alone there are more than 4,000 bee species. In spite of their abundance and diversity, there is no accessible field guide for the non-expert. This book will remedy that situation by providing a carefully crafted introduction to bee identification for eastern North America. No portable field guide could include coverage of the myriad species in the region, so the book concentrates on identifying bees at the genus level. It includes information on the 72 different genera that are found east of the Rockies"--
Author: Bryan N. Danforth Publisher: Princeton University Press ISBN: 0691189323 Category : Science Languages : en Pages : 488
Book Description
The most up-to-date and authoritative resource on the biology and evolution of solitary bees While social bees such as honey bees and bumble bees are familiar to most people, they comprise less than 10 percent of all bee species in the world. The vast majority of bees lead solitary lives, surviving without the help of a hive and using their own resources to fend off danger and protect their offspring. This book draws on new research to provide a comprehensive and authoritative overview of solitary bee biology, offering an unparalleled look at these remarkable insects. The Solitary Bees uses a modern phylogenetic framework to shed new light on the life histories and evolution of solitary bees. It explains the foraging behavior of solitary bees, their development, and competitive mating tactics. The book describes how they construct complex nests using an amazing variety of substrates and materials, and how solitary bees have co-opted beneficial mites, nematodes, and fungi to provide safe environments for their brood. It looks at how they have evolved intimate partnerships with flowering plants and examines their associations with predators, parasites, microbes, and other bees. This up-to-date synthesis of solitary bee biology is an essential resource for students and researchers, one that paves the way for future scholarship on the subject. Beautifully illustrated throughout, The Solitary Bees also documents the critical role solitary bees play as crop pollinators, and raises awareness of the dire threats they face, from habitat loss and climate change to pesticides, pathogens, parasites, and invasive species.
Author: Guaraci Duran Cordeiro Publisher: Frontiers Media SA ISBN: 2832543537 Category : Science Languages : en Pages : 118
Book Description
World Bee Day takes place on the 20th of May, commemorating the date on which we acknowledge the influence of the most popular pollinator species, bees, in plant diversity and our society. The aim of this Research Topic is to raise awareness of the importance of pollinators in urban areas, the threats they face and their contribution to sustainable development. It is in this spirit that Frontiers is launching a new article collection to coincide with this UN day. This occasion not only offers an opportunity to acknowledge the sustainable approach that is protecting wildlife in any form in urban areas, but also to consider the importance of bees in our ecosystem and their positive impact on human society. This Frontiers in Sustainable Cities Research Topic aims to address Urban Greening and Resource Management-specific dimensions of this UN day, highlighting the importance of having healthy green areas and all-level decision-making and considering how pollinators interact with many levels of our society. Topics may include, but are by no means limited to: - Technology and practices for urban greening and pollinator populations - Urban solutions for declining bee populations - Influence of community gardens on pollinator populations - Increases of the awareness of the importance of pollinators in local community gardens and urban greening - Policy making to protect pollinators in urban areas - Facilitating urban management of natural resources for the benefit of pollinator populations - Harnessing SDGs for urban pollinators population - Citizen science to monitor pollinators - Pollination service in urban areas - Effects of environmental contaminants, climate warning and light on pollinators - Plant pollinator networks in cities and urban areas
Author: Paul Schmid-Hempel Publisher: Princeton University Press ISBN: 9780691059242 Category : Science Languages : en Pages : 436
Book Description
In addition, the author develops new insights, especially in his examination of the intricate relationships between parasites and their social hosts through the rigorous use of evolutionary and ecological concepts.".
Author: Barbara Gemmill-Herren Publisher: Routledge ISBN: 1317445686 Category : Technology & Engineering Languages : en Pages : 310
Book Description
It is only recently that the immense economic value of pollination to agriculture has been appreciated. At the same time, the alarming collapse in populations of bees and other pollinators has highlighted the urgency of addressing this issue. This book focuses on the specific measures and practices that the emerging science of pollination ecology is identifying to conserve and promote animal pollinators in agroecosystems. It reviews the expanding knowledge base on pollination services, providing evidence to document the status, trends and importance of pollinators to sustainable agricultural production. It provides practical and specific measures that land managers can undertake to ensure that agroecosystems are supportive and friendly to pollinators. It draws on the Global Pollination Project, supported by UNEP/GEF and implemented by FAO and seven partner countries (Brazil, Ghana, India, Kenya, Nepal, Pakistan and South Africa), which serve to provide "lessons from the field".
Author: Gibbs Jason
Author: Olivia Messinger Carril
Author: Gibbs Jason
Author: Bryan N. Danforth
Author: Guaraci Duran Cordeiro
Author: Paul David Hurd
Author: Paul Schmid-Hempel
Author: Jason Gibbs
Author: Barbara Gemmill-Herren
Author: I︠U︡. A. Pesenko