12 Works

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...

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...

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...

Data from: The consequences of land sparing for birds in the United Kingdom

Anthony Lamb, Tom Finch, James W. Pearce-Higgins, Malcolm Ausden, Andrew Balmford, Claire Feniuk, Graham Hirons, Dario Massimino & Rhys E. Green
1. Land sparing has been proposed as a strategy to reconcile biodiversity conservation with agricultural production, with empirical studies on five continents indicating that most species would benefit if food demand was met through high-yield farming combined with the protection or restoration of natural habitat. 2. Most such studies come from landscapes covered by large areas of natural habitat and without a long history of intense human modification. However, much of Europe, consists of human-dominated...

Data from: Correlates of alternative migratory strategies in western bluebirds

Catherine A. Dale, Joseph J. Nocera, Samantha E. Franks, T. Kurt Kyser & Laurene M. Ratcliffe
Partial migration occurs when only some animals in a population migrate. While evidence suggests that migratory strategies are partially controlled by genes, individual and environmental conditions which alter the cost‐benefit trade‐off of migration among individuals are also likely to play a role. Three hypotheses have been advanced to explain condition‐dependent partial migration: the arrival time, dominance, and body size hypotheses. In this study, we asked whether these hypotheses explained differences in migratory strategy among individuals...

Data from: Low fitness at low latitudes: wintering in the tropics increases migratory delays and mortality rates in an Arctic breeding shorebird

Jeroen Reneerkens, Tom S.L. Versluijs, Theunis Piersma, Jose Alves, Mark Boorman, Colin Corse, Olivier Gilg, Gunnar Hallgrimsson, Johannes Lang, Bob Loos, Yaa Ntiamoa-Baidu, Alfred Nuoh, Peter Potts, Job Ten Horn & Tamar Lok
1. Evolutionary theories of seasonal migration generally assume that the costs of longer migrations are balanced by benefits at the non-breeding destinations. 2. We tested, and rejected, the null hypothesis of equal survival and timing of spring migration for High Arctic breeding sanderling Calidris alba using six and eight winter destinations between 55° N and 25° S, respectively. 3. Annual apparent survival was considerably lower for adult birds wintering in tropical West-Africa (Mauritania: 0.74 and...

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...

United Kingdom Butterfly Monitoring Scheme: site location data 2018

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: collated indices 2018

M.S. Botham, T. Brereton, S. Harris, C. Harrower, I. Middlebrook, Z. Randle & D.B. Roy
Collated indices are a relative measure of butterfly abundance across monitored sites in the UK, calculated from data collected by the UK Butterfly Monitoring Scheme (UKBMS). Collated indices are calculated annually for each individual butterfly species that has been recorded on five or more sites in that year. Based on this criterion collated indices have been calculated for the entire UKBMS time series from 1976 to the current year for the majority of species. For...

United Kingdom Butterfly Monitoring Scheme: collated indices 2017

M.S. Botham, T. Brereton, S. Harris, C. Harrower, I. Middlebrook, Z. Randle & D.B. Roy
Collated indices are a relative measure of butterfly abundance across monitored sites in the UK, calculated from data collected by the UK Butterfly Monitoring Scheme (UKBMS). Collated indices are calculated annually for each individual butterfly species that has been recorded on five or more sites in that year. Based on this criterion collated indices have been calculated for the entire UKBMS time series from 1976 to the current year for the majority of species. For...

Data from: Effects of tracking devices on individual birds – a review of the evidence

Graham R. Geen, Robert A. Robinson & Stephen R. Baillie
We review long-term patterns of tracking device use and the reporting of the effects of such devices on individual birds. We assessed >3,400 primary references including >1,500 containing information as to whether effects were looked for and reported. Numbers of papers published increased at 4.4% per year. Research on foraging and energetics focussed on seabirds while work on habitat use and dispersal was focussed mainly on landbirds. Migration was the most common study topic overall...

Registration Year

  • 2019
    12

Resource Types

  • Dataset
    12

Affiliations

  • British Trust for Ornithology
    12
  • Centre for Ecology & Hydrology
    7
  • UK Centre for Ecology & Hydrology
    7
  • Butterfly Conservation
    7
  • University of Aveiro
    1
  • Centre for Ecology and Conservation Sciences
    1
  • Lund University
    1
  • University of Groningen
    1
  • Royal Society for the Protection of Birds
    1
  • University of Cambridge
    1