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	Provedor de dados Ecology and Society (2) Autor Cane, James H; USDA-ARS; jcane@biology.usu.edu (1) Kearns, Carol Ann; University of Colorado at Boulder; kearnsca@rtt.colorado.edu (1) Tepedino, Vincent J; USDA-ARS; andrena@biology.usu.edu (1) Palavra-chave Conservation (2) North America (2) Pollination (2) Pollinator declines (2) Anthophilous flies (1) Anthropogenic disturbance (1) Apiformes (1) Apoidea (1) Diptera (1) Dipteran conservation (1) Diversity (1) Generalist pollinators (1) Insecta (1) Land-use change (1) Native invertebrate pollinators (1) Population fluctuation (1) Redundant pollination systems (1) Mais... Tipo do documento Peer-Reviewed Reports (2) Ano 2001 (2) País Canada (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Causes and Extent of Declines among Native North American Invertebrate Pollinators: Detection, Evidence, and Consequences Ecology and Society Cane, James H; USDA-ARS; jcane@biology.usu.edu; Tepedino, Vincent J; USDA-ARS; andrena@biology.usu.edu. Ecosystem health and agricultural wealth in North America depend on a particular invertebrate fauna to deliver pollination services. Extensive losses in pollinator guilds and communities can disrupt ecosystem integrity, a circumstance that today forces most farmers to rely on honey bees for much fruit and seed production. Are North America's invertebrate pollinator faunas already widely diminished or currently threatened by human activities? How would we know, what are the spatiotemporal scales for detection, and which anthropogenic factors are responsible? Answers to these questions were considered by participants in a workshop sponsored by the National Center for Ecological Analysis and Synthesis in October of 1999, and these questions form the nucleus... Tipo: Peer-Reviewed Reports Palavras-chave: Apiformes; Apoidea; Insecta; Conservation; Diversity; Land-use change; Native invertebrate pollinators; North America; Pollination; Pollinator declines. Ano: 2001 North American Dipteran Pollinators: Assessing Their Value and Conservation Status Ecology and Society Kearns, Carol Ann; University of Colorado at Boulder; kearnsca@rtt.colorado.edu. Recent attention to pollinator declines has focused largely on bees and vertebrates. However, few pollination systems are obligate, and pollinators that complement the role of bees may respond differently to environmental disturbance. The conservation status of North American fly pollinators remains undocumented. In this paper, methods for monitoring shifts in dipteran pollinator abundance are discussed. The need for further basic research into pollination by flies is addressed, and the significance of dipteran conservation is considered. Tipo: Peer-Reviewed Reports Palavras-chave: Anthophilous flies; Anthropogenic disturbance; Conservation; Diptera; Dipteran conservation; Generalist pollinators; North America; Pollination; Pollinator declines; Population fluctuation; Redundant pollination systems. Ano: 2001 Registros recuperados: 2 Primeira ... 1 ... Última

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