نتایج جستجو برای: insect pollinators

تعداد نتایج: 42032  

1987
Rachael Winfree Brian J. Gross Claire Kremen

a r t i c l e i n f o Keywords: Apis mellifera biodiversity-ecosystem function ecosystem services native bee pollinator valuation ecosystem service valuation wild bee Crop pollination by animal pollinators is an important ecosystem service for which there is no generally accepted valuation method. Here, we show that two existing valuation methods, previously thought to be unrelated , are each a...

2014
Abigail A R Kula Dean M Castillo Michele R Dudash Charles B Fenster

Plant-insect interactions often are important for plant reproduction, but the outcome of these interactions may vary with environmental context. Pollinating seed predators have positive and negative effects on host plant reproduction, and the interaction outcome is predicted to vary with density or abundance of the partners. We studied the interaction between Silene stellata, an herbaceous pere...

Journal: :Global change biology 2013
Romina Rader James Reilly Ignasi Bartomeus Rachael Winfree

If climate change affects pollinator-dependent crop production, this will have important implications for global food security because insect pollinators contribute to production for 75% of the leading global food crops. We investigate whether climate warming could result in indirect impacts upon crop pollination services via an overlooked mechanism, namely temperature-induced shifts in the diu...

Journal: :Journal of Hymenoptera Research 2022

Small carpenter bees of the genus Ceratina are widespread, but little-studied as pollinators despite their presence in various pollinator assemblages. This study documents importance ridleyi a small-flowered Malaysian ginger Globba leucantha var. bicolor. Species Zingiberaceae defined by peculiar floral morphologies (e.g staminodes and single functional anther) rarely studied for insect pollina...

2014
Dawid Moroń Piotr Skórka Magdalena Lenda Elżbieta Rożej-Pabijan Marta Wantuch Joanna Kajzer-Bonk Waldemar Celary Łukasz Emil Mielczarek Piotr Tryjanowski

Pollinating insect populations, essential for maintaining wild plant diversity and agricultural productivity, rely on (semi)natural habitats. An increasing human population is encroaching upon and deteriorating pollinator habitats. Thus the population persistence of pollinating insects and their associated ecosystem services may depend upon on man-made novel habitats; however, their importance ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2002
Carlos M Herrera Monica Medrano Pedro J Rey Alfonso M Sanchez-Lafuente Maria B Garcia Javier Guitian Antonio J Manzaneda

Different kinds of plant-animal interactions are ordinarily studied in isolation, yet considering the combined fitness effects of mutualistic and antagonistic interactions is essential to understanding plant character evolution. Functional, structural, or phylogenetic associations between attractive and defensive traits may be nonadaptive or result from correlational selection on sets of herbiv...

2005
MARY V. PRICE NICKOLAS M. WASER REBECCA E. IRWIN DIANE R. CAMPBELL ALISON K. BRODY

Pollination by animals is critical to sexual reproduction of most angiosperms. However, little is known about variation in pollination service to single plant species. We report results of a long-term study of Ipomopsis aggregata, a semelparous montane herb whose flowers are visited by hummingbird and insect pollinators as well as ‘‘floral larcenists.’’ We censused flower visitors over seven su...

2018
Emily J Bailes Kaitlin R Deutsch Judit Bagi Lucila Rondissone Mark J F Brown Owen T Lewis

Global declines of insect pollinators jeopardize the delivery of pollination services in both agricultural and natural ecosystems. The importance of infectious diseases has been documented in honeybees, but there is little information on the extent to which these diseases are shared with other pollinator orders. Here, we establish for the first time the presence of three important bee viruses i...

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