47 Works

Data from: Linking isotopes and panmixia: high within-colony variation in feather δ2H, δ13C, and δ15N across the range of the American white pelican

Matthew W. Reudink, Christopher J. Kyle, Ann E. McKellar, Christopher M. Somers, Robyn L.F. Reudink, T. Kurt Kyser, Samantha E. Franks & Joseph J. Nocera
Complete panmixia across the entire range of a species is a relatively rare phenomenon; however, this pattern may be found in species that have limited philopatry and frequent dispersal. American white pelicans (Pelecanus erythrorhyncos) provide a unique opportunity to examine the role of long-distance dispersal in facilitating gene flow in a species recently reported as panmictic across its broad breeding range. This species is also undergoing a range expansion, with new colonies arising hundreds of...

Data from: Effects of winter food provisioning on the phenotypes of breeding blue tits

Kate E. Plummer, Stuart Bearhop, David I. Leech, Dan E. Chamberlain & Jonathan D. Blount
Throughout the Western World huge numbers of people regularly supply food for wild birds. However, evidence of negative impacts of winter feeding on future reproduction has highlighted a need to improve understanding of the underlying mechanisms shaping avian responses to supplementary food. Here, we test the possibility that carry-over effects are mediated via their impact on the phenotypes of breeding birds, either by influencing the phenotypic structure of populations through changes in winter survival and/or...

Evolution of chain migration in an aerial insectivorous bird, the common swift Apus apus

Susanne Akesson, Phil Atkinson, Ana Bermejo, Javier De La Puente, Mauro Ferri, Chris Hewson, Jan Holmgren, Erich Kaiser, Lyndon Kearsley, Raymond Klaassen, Heikki Kolunen, Gittan Matsson, Fausto Minelli, Gabriel Norevik, Hannu Pietiäinen, Navinder J Singh, Fernando Spina, Lukas Viktora & Anders Hedenstrom
Spectacular long-distance migration has evolved repeatedly in animals enabling exploration of resources separated in time and space. In birds, these patterns are largely driven by seasonality, cost of migration, and asymmetries in competition leading most often to leap-frog migration, where northern breeding populations winter furthest to the south. Here we show that the highly aerial common swift Apus apus, spending the non-breeding period on the wing, instead exhibits a rarely-found chain migration pattern, where the...

Data from: Wind-associated detours promote seasonal migratory connectivity in a flapping flying long-distance avian migrant

Gabriel Norevik, Susanne Akesson, Tom Artois, Natalie Beenaerts, Greg Conway, Brian Cresswell, Ruben Evens, Ian Henderson, Frederic Jiguet & Anders Hedenström
1. It is essential to gain knowledge about the causes and extent of migratory connectivity between stationary periods of migrants to further the understanding of processes affecting populations, and to allow efficient implementation of conservation efforts throughout the annual cycle. Avian migrants likely use optimal routes with respect to mode of locomotion, orientation and migration strategy, influenced by external factors such as wind and topography. In self-powered flapping flying birds any increases in fuel loads...

Data from: Bird and bat species' global vulnerability to collision mortality at wind farms revealed through a trait-based assessment

Chris B. Thaxter, Graeme M. Buchanan, Carr Jamie, Stuart H.M. Butchart, Tim Newbold, Rhys E. Green, Joseph A. Tobias, Wendy B. Foden, Sue O'Brien & James W. Pearce-Higgins
Mitigation of anthropogenic climate change involves deployments of renewable energy worldwide, including wind farms, which can pose a significant collision risk to volant animals. Most studies into the collision risk between species and wind turbines, however, have taken place in industrialized countries. Potential effects for many locations and species therefore remain unclear. To redress this gap, we conducted a systematic literature review of recorded collisions between birds and bats and wind turbines within developed countries....

United Kingdom Butterfly Monitoring Scheme: site indices data 2017

M.S. Botham, T. Brereton, S. Harris, C. Harrower, I. Middlebrook, Z. Randle & D.B. Roy
Site indices, as a relative measure of the actual population size, for UK butterfly species calculated from data from the UK Butterfly Monitoring Scheme (UKBMS). Site indices are a relative rather than an absolute measure of the size of a population, and have been shown to relate closely to other, more intensive, measures of population size such as mark, release, recapture (MRR) methods. The site index can be thought of as a relative measure of...

United Kingdom Butterfly Monitoring Scheme: species trends 2017

M.S. Botham, T. Brereton, S. Harris, C. Harrower, I. Middlebrook, Z. Randle & D.B. Roy
This dataset provides linear trends, over varying time periods, for the UK Butterfly Monitoring Scheme (UKBMS) collated Indices of individual butterfly species across the UK. The main statistical values derived from a linear regression (slope, standard error, P-value) are presented for the entire time series for each species (1976 to 2017), for the last 20 years, and for the last decade. In addition a trend class, based on slope direction and its significance, and a...

Data from: Characteristics determining host suitability for a generalist parasite

Bård G. Stokke, Irja I. Ratikainen, Arne Moksnes, Eivin Røskaft, Karl Schulze-Hagen, David I. Leech, Anders P. Møller & Frode Fossøy
Host quality is critical for parasites. The common cuckoo Cuculus canorus is a generalist avian brood parasite, but individual females show strong preference for a specific host species. Here, we use three extensive datasets to investigate different host characteristics determining cuckoo host selection at the species level: (i) 1871 population-specific parasitism rates collected across Europe; (ii) 14 K cases of parasitism in the United Kingdom; and (iii) 16 K cases of parasitism in Germany, with...

Data from: Long-term declines in winter body mass of tits throughout Britain and Ireland correlate with climate change

Euan N. Furness & Robert A. Robinson
1. The optimum body mass of passerine birds typically represents a trade-off between starvation risk, which promotes fat gain, and predation pressure, which promotes fat loss to maintain manoeuvrability. Changes in ecological factors that affect either of these variables will therefore change the optimum body masses of populations of passerine birds. 2. This study sought to identify and quantify the effects of changing temperatures and predation pressures on the body masses and wing lengths of...

Individual variability and versatility in an eco-evolutionary model of avian migration

Benjamin M. Van Doren, Kira E. Delmore, Greg J. Conway, Teja Curk, Tania Garrido-Garduño, Ryan R. Germain, Timo Hasselmann, Dieter Hiemer, Henk Van Der Jeugd, Hannah Justen, Juan Sebastian Lugo Ramos, Ivan Maggini, Britta S. Meyer, Robbie J. Phillips, Magdalena Remisiewicz, Graham C. M. Roberts, Ben C. Sheldon, Wolfgang Vogl & Miriam Liedvogel
Seasonal migration is a complex and variable behavior with the potential to promote reproductive isolation. In Eurasian blackcaps (Sylvia atricapilla), a migratory divide in central Europe separating populations with southwest and southeast autumn routes may facilitate isolation, and individuals using new wintering areas in Britain show divergence from Mediterranean winterers. We tracked 100 blackcaps in the wild to characterize these strategies. Blackcaps to the west and east of the divide used predominantly SW and SE...

Configurational crop heterogeneity increases within-field plant diversity

Audrey Alignier, Xavier Solé-Senan, Irene Robleño, Barbara Baraibar, Fahrig Lenore, David Giralt, Nicolas Gross, Jean-Louis Martin, Jordi Recasens, Clelia Sirami, Gavin Siriwardena, Aliette Bosem Baillod, Colette Bertrand, Romain Carrie, Annika Hass, Laura Henckel, Paul Miguet, Isabelle Badenhausser, Jacques Baudry, Gerard Bota, Vincent Bretagnolle, Lluis Brotons, Francoise Burel, François Calatayud, Yann Clough … & Péter Batáry
1. Increasing landscape heterogeneity by restoring semi-natural elements to reverse farmland biodiversity declines is not always economically feasible or acceptable to farmers due to competition for land. We hypothesized that increasing the heterogeneity of the crop mosaic itself, hereafter referred to as crop heterogeneity, can have beneficial effects on within-field plant diversity. 2. Using a unique multi-country dataset from a cross-continent collaborative project covering 1451 agricultural fields within 432 landscapes in Europe and Canada, we...

Data from: Attributing changes in the distribution of species abundance to weather variables using the example of British breeding birds

Cornelia S. Oedekoven, David A. Elston, Philip J. Harrison, Mark J. Brewer, Steve T. Buckland, Alison Johnston, Simon Foster, James W. Pearce-Higgins & Stephen T. Buckland
1. Modelling spatio-temporal changes in species abundance and attributing those changes to potential drivers such as climate, is an important but difficult problem. The standard approach for incorporating climatic variables into such models is to include each weather variable as a single covariate whose effect is expressed through a low-order polynomial or smoother in an additive model. This, however, confounds the spatial and temporal effects of the covariates. 2. We developed a novel approach to...

Data from: Effects of deer on woodland structure revealed through terrestrial laser scanning

Markus P. Eichhorn, Joseph Ryding, Martin J. Smith, Robin M. A. Gill, Gavin M. Siriwardena & Robert J. Fuller
Terrestrial laser scanning (TLS) captures the three-dimensional structure of habitats. Compared to traditional methods of forest mensuration, it allows quantification of structure at increased resolution, and the derivation of novel metrics with which to inform ecological studies and habitat management. Lowland woodlands in the UK have altered in structure over the last century due to increased abundance of deer and a decline in management. We compared whole-canopy profiles between woodlands with high (>10 deer km−2)...

Evaluating spatially explicit sharing-sparing scenarios for multiple environmental outcomes

Tom Finch, Brett Day, Dario Massimino, John Redhead, Rob Field, Andrew Balmford, Rhys Green & Will Peach
1. Understanding how to allocate land for the sustainable delivery of multiple, competing objectives is a major societal challenge. The land sharing-sparing framework presents a heuristic for understanding the trade-off between food production and biodiversity conservation by comparing region-wide land use scenarios which are equivalent in terms of overall food production. 2. Here, for two contrasting regions of lowland England (The Fens and Salisbury Plain), we use empirical data and predictive models to compare a...

Data from: Latitudinal variation of arrival and breeding phenology of the pied flycatcher Ficedula hypoleuca using large-scale citizen science data.

Pedro G Nicolau, Malcolm D Burgess, Tiago A Marques, Stephen R Baillie, Dave I Leech, Nick J Moran & Alison Johnston
Many species have advanced the timing of annual reproductive cycles in response to climatic warming, sometimes leading to asynchrony between trophic levels, with negative population consequences. Long-distance migratory birds, reliant on short seasonal food pulses for breeding, are considered particularly susceptible to such disjunction because late arrival may preclude optimal timing of egg-laying. It is unknown whether the relative timing of arrival and egg-laying is sufficiently plastic, in time and space, to enable an adaptive...

Data from: Can observation skills of citizen scientists be estimated using species accumulation curves?

Steve Kelling, Alison Johnston, Wesley M. Hochachka, Marshall Iliff, Daniel Fink, Jeff Gerbracht, Carl Lagoze, Frank A. La Sorte, Travis Moore, Andrea Wiggins, Weng-Keen Wong, Chris Wood & Jun Yu
Volunteers are increasingly being recruited into citizen science projects to collect observations for scientific studies. An additional goal of these projects is to engage and educate these volunteers. Thus, there are few barriers to participation resulting in volunteer observers with varying ability to complete the project’s tasks. To improve the quality of a citizen science project’s outcomes it would be useful to account for inter-observer variation, and to assess the rarely tested presumption that participating...

Data from: An experimental evaluation of the effects of geolocator design and attachment method on between-year survival on whinchats Saxicola rubetra

Emma Blackburn, Malcolm Burgess, Benedictus Freeman, Alice Riseley, Arin Izang, Sam Ivande, Chris Hewson, Will Cresswell & Alice Risely
Data from location logging tags have revolutionised our understanding of migration ecology, but methods of tagging that do not compromise survival need to be identified. We compared resighting rates for 156 geolocator-tagged and 316 colour ringed-only whinchats on their African wintering grounds after migration to and from eastern Europe in two separate years. We experimentally varied both light stalk length (0, 5 and 10 mm) and harness material (elastic or non-elastic nylon braid tied on,...

Data from: Drivers of climate change impacts on bird communities

James W. Pearce-Higgins, Sarah M. Eglington, Blaise Martay & Dan E. Chamberlain
1. Climate change is reported to have caused widespread changes to species’ populations and ecological communities. Warming has been associated with population declines in long-distance migrants and habitat specialists, and increases in southerly distributed species. However, the specific climatic drivers behind these changes remain undescribed. 2. We analysed annual fluctuations in the abundance of 59 breeding bird species in England over 45 years to test the effect of monthly temperature and precipitation means upon population...

Data from: Estimates of observer expertise improve species distributions from citizen science data

Alison Johnston, Daniel Fink, Wesley M Hochachka & Steve Kelling
1. Citizen science data are increasingly making valuable contributions to ecological studies. However, many citizen science surveys are also designed to encourage wide participation and therefore the participants have a range of natural history expertise, leading to variation and potentially bias in the data. 2. We assessed a recently proposed measure of observer expertise, calculated based on the average numbers of species recorded by observers. We investigated if this observer expertise score is associated with...

Data from: Potential for coupling the monitoring of bush-crickets with established large-scale acoustic monitoring of bats

Stuart E. Newson, Yves Bas, Ashley Murray & Simon Gillings
1. Monitoring biodiversity over large spatial and temporal scales is crucial for assessing the impact of global changes and environmental mitigation measures. However, large-scale monitoring of invertebrates remains poorly developed despite the importance of these organisms in ecosystem functioning. Exciting possibilities applicable to professional and citizen science are offered by new recording techniques and methods of semi-automated species recognition based on sound detection. 2. Static broad-spectrum detectors deployed to record throughout whole nights have been...

Data from: Survival varies seasonally in a migratory bird: linkages between breeding and non-breeding periods

Robert Robinson, Christoph Meier, Willem Witvliet, Marc Kery & Michael Schaub
1. Migratory species form an important component of biodiversity; they link ecosystems across the globe, but are increasingly threatened by global environmental change. Understanding and mitigating threats requires knowledge of how demographic processes operate throughout the annual cycle, but this can be difficult to achieve when breeding and non-breeding grounds are widely separated. 2. Our goal is to quantify the importance of variability in survival during the breeding and non-breeding seasons in determining variation in...

Livestock grazing impacts upon components of the breeding productivity of a common upland insectivorous passerine: results from a long-term experiment

Lisa E. Malm, James W. Pearce-Higgins, Nick A. Littlewood, Alison J. Karley, Ewa Karaszewska, Robert Jaques, Robin J. Pakeman, Steve M. Redpath & Darren M. Evans
The intensity of pastoral management in areas of High Nature Value farming is declining in some regions of Europe but increasing in others. This affects open habitats of conservation concern, such as the British uplands, where bird species that benefit from low-intensity grazing may be most sensitive to such polarisation. While experimental manipulations of livestock grazing intensities have improved our understanding of upland breeding bird responses in the short-term, none have examined the longer-term impacts...

United Kingdom Butterfly Monitoring Scheme: site location data 2017

M.S. Botham, T. Brereton, S. Harris, C. Harrower, I. Middlebrook, Z. Randle & D.B. Roy
This dataset provides the details of all sites which have been monitored as part of the UK Butterfly Monitoring Scheme (UKBMS). Data includes the location within the UK, the length and width of the line transect on each site, and how long the transect has been monitored. The UKBMS started in 1976 with fewer than 50 sites (a small number of pilot sites started from 1973). The number of sites monitored each year has increased...

United Kingdom Butterfly Monitoring Scheme: species trends 2018

M.S. Botham, T. Brereton, S. Harris, C. Harrower, I. Middlebrook, Z. Randle & D.B. Roy
This dataset provides linear trends, over varying time periods, for the UK Butterfly Monitoring Scheme (UKBMS) collated Indices of individual butterfly species across the UK. The main statistical values derived from a linear regression (slope, standard error, P-value) are presented for the entire time series for each species (1976 to 2018), for the last 20 years, and for the last decade. In addition a trend class, based on slope direction and its significance, and a...

Point count survey data for birds in the east of England, UK, in 2013

K.E. Plummer & G.M. Siriwardena
This dataset comprises bird abundance data collected using point count methods in Bedford, Luton and Milton Keynes in the summer of 2013. The purpose of the study was to characterise the variation in breeding bird fauna across a range of urban forms. As well as measuring the birds that were 'really' present, the survey aimed to investigate the birds detectable at times of day when people were more active and more likely to have casual...

Registration Year

  • 2021
  • 2020
  • 2019
  • 2018
  • 2017
  • 2016
  • 2015

Resource Types

  • Dataset


  • British Trust for Ornithology
  • Centre for Ecology & Hydrology
  • UK Centre for Ecology & Hydrology
  • University of Cambridge
  • Butterfly Conservation
  • Royal Society for the Protection of Birds
  • Centre for Ecology and Hydrology
  • Lund University
  • University of Exeter
  • Imperial College London