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Jeff Ollerton
University of Northampton
107Publications
34H-index
5,709Citations
Publications 107
Newest
Published on 2019in Scientific Reports4.01
Paolo Biella5
Estimated H-index: 5
(University of Milano-Bicocca),
Asma Akter1
Estimated H-index: 1
(Sewanee: The University of the South)
+ 4 AuthorsJan Klecka9
Estimated H-index: 9
Species extinctions undermine ecosystem functioning, with the loss of a small subset of functionally important species having a disproportionate impact. However, little is known about the effects of species loss on plant-pollinator interactions. We addressed this issue in a field experiment by removing the plant species with the highest visitation frequency, then measuring the impact of plant removal on flower visitation, pollinator effectiveness and insect foraging in several sites. Our results...
Published on Jan 23, 2019in Annals of Botany3.45
Jeff Ollerton34
Estimated H-index: 34
(University of Northampton),
Sigrid Liede-Schumann21
Estimated H-index: 21
(University of Bayreuth)
+ 72 AuthorsLeonardo O. Alvarado-Cárdenas4
Estimated H-index: 4
(UNAM: National Autonomous University of Mexico)
We offer grateful thanks to all of the authors of studies that we have included in our database, which reflects a research effort that goes back over 100 years. Funding for fieldwork to JO and his group was obtained from The British Ecological Society, the Percy Sladen Memorial Fund, the Royal Society and the University of Northampton. JO would like to thank the many field assistants and in-country contacts who helped with data collection, species identification, accommodation and field sites in...
Published on Oct 20, 2018in Journal of Apicultural Research1.75
Martine J. Barons3
Estimated H-index: 3
(Warw.: University of Warwick),
Anca M. Hanea10
Estimated H-index: 10
(University of Melbourne)
+ 10 AuthorsAndrew Lucas3
Estimated H-index: 3
(Swansea University)
Policy-makers often need to rely on experts with disparate fields of expertise when making policy choices in complex, multi-faceted, dynamic environments such as those dealing with ecosystem services. For policy-makers wishing to make evidence-based decisions which will best support pollinator abundance and pollination services, one of the problems faced is how to access the information and evidence they need, and how to combine it to formulate and evaluate candidate policies. This is even more ...
Published on Sep 1, 2018in Acta Botanica Brasilica1.11
André Rodrigo Rech7
Estimated H-index: 7
(State University of Campinas),
Leonardo R. Jorge6
Estimated H-index: 6
(State University of Campinas)
+ 1 AuthorsMarlies Sazima32
Estimated H-index: 32
(State University of Campinas)
Published on Jun 1, 2018in Biological Conservation4.45
Nicholas J. Balfour6
Estimated H-index: 6
(University of Sussex),
Jeff Ollerton34
Estimated H-index: 34
(University of Northampton)
+ 1 AuthorsFrancis L. W. Ratnieks60
Estimated H-index: 60
(University of Sussex)
The long-term decline of wild and managed insect pollinators is a threat to both agricultural output and biodiversity, and has been linked to decreasing floral resources. Further insight into the temporal relationships of pollinators and their flowering partners is required to inform conservation efforts. Here we examined the phenology of British: (i) pollinator activity; (ii) insect-pollinated plant flowering; and (iii) extinct and endangered pollinator and plant species. Over 1 million records...
Published on Apr 1, 2018in Oikos3.47
Daniel W. Carstensen11
Estimated H-index: 11
(UCPH: University of Copenhagen),
Kristian Trøjelsgaard17
Estimated H-index: 17
(AAU: Aalborg University)
+ 1 AuthorsLeonor Patricia C. Morellato15
Estimated H-index: 15
(UNESP: Sao Paulo State University)
Specialization of species is often studied in ecology but its quantification and meaning is disputed. More recently, ecological network analysis has been widely used as a tool to quantify specialization, but here its true meaning is also debated. However, irrespective of the tool used, the geographic scale at which specialization is measured remains central. Consequently, we use data sets of plant-pollinator networks from Brazil and the Canary Islands to explore specialization at local and regio...
Published on Mar 28, 2018
Bo Dalsgaard20
Estimated H-index: 20
(Wild Center),
Jonathan D. Kennedy9
Estimated H-index: 9
(Wild Center)
+ 8 AuthorsJimmy A. McGuire32
Estimated H-index: 32
(Museum of Vertebrate Zoology)
Species traits are thought to predict feeding specialization and the vulnerability of a species to extinctions of interaction partners, but the context in which a species evolved and currently inhabits may also matter. Notably, the predictive power of traits may require that traits evolved to fit interaction partners. Furthermore, local abiotic and biotic conditions may be important. On islands, for instance, specialized and vulnerable species are predicted to be found mainly in mountains, where...
Published on Jan 1, 2018
Jeferson Vizentin-Bugoni9
Estimated H-index: 9
(State University of Campinas),
Pietro K. Maruyama12
Estimated H-index: 12
(State University of Campinas)
+ 3 AuthorsMarlies Sazima32
Estimated H-index: 32
(State University of Campinas)
Most tropical plants rely on animals for pollination, thus engaging in complex interaction networks. Here, we present a global overview of pollination networks and point out research gaps and emerging differences between tropical and non-tropical areas. Our review highlights an uneven global distribution of studies biased towards non-tropical areas. Moreover, within the tropics, there is a bias towards the Neotropical region where partial networks represent 70.1% of the published studies. Additi...
Published on Nov 2, 2017in Annual Review of Ecology, Evolution, and Systematics10.88
Jeff Ollerton34
Estimated H-index: 34
By facilitating plant reproduction, pollinators perform a crucial ecological function that supports the majority of the world's plant diversity, and associated organisms, and a significant fraction of global agriculture. Thus, pollinators are simultaneously vital to supporting both natural ecosystems and human food security, which is a unique position for such a diverse group of organisms. The past two decades have seen unprecedented interest in pollinators and pollination ecology, stimulated in...
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