Tom Brereton

ORCID: 0000-0003-2868-7951
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About
Contact & Profiles
Research Areas
  • Species Distribution and Climate Change
  • Ecology and Vegetation Dynamics Studies
  • Plant and animal studies
  • Lepidoptera: Biology and Taxonomy
  • Marine animal studies overview
  • Wildlife Ecology and Conservation
  • Botany and Plant Ecology Studies
  • Animal and Plant Science Education
  • Marine and fisheries research
  • Animal Ecology and Behavior Studies
  • Fire effects on ecosystems
  • Avian ecology and behavior
  • Forest Insect Ecology and Management
  • Entomological Studies and Ecology
  • Climate change impacts on agriculture
  • Botanical Studies and Applications
  • Climate variability and models
  • Land Use and Ecosystem Services
  • Marine and coastal plant biology
  • Insect and Pesticide Research
  • Insect and Arachnid Ecology and Behavior
  • Cephalopods and Marine Biology
  • Isotope Analysis in Ecology
  • Arctic and Antarctic ice dynamics
  • Ecology and biodiversity studies

Butterfly Conservation
2015-2025

Lucian Blaga University of Sibiu
2023

BirdLife international
2023

Bridport Community Hospital
2018

UK Centre for Ecology & Hydrology
2012

Dolphin (PG) Institute of Bio Medical and Natural Science
2002

Dolphin Interconnect Solutions (Norway)
2002

Abstract Recent changes in the seasonal timing (phenology) of familiar biological events have been one most conspicuous signs climate change. However, lack a standardized approach to analysing change has hampered assessment consistency such among different taxa and trophic levels across freshwater, terrestrial marine environments. We present 25 532 rates phenological for 726 UK terrestrial, freshwater taxa. The majority spring summer advanced, more rapidly than previously documented. Such is...

10.1111/j.1365-2486.2010.02165.x article EN Global Change Biology 2010-01-05

Advances in phenology (the annual timing of species' life-cycles) response to climate change are generally viewed as bioindicators change, but have not been considered predictors range expansions. Here, we show that advances combine with the number reproductive cycles per year (voltinism) shape abundance and distribution trends 130 species British Lepidoptera, ~0.5 °C spring-temperature warming between 1995 2014. Early adult emergence warm years resulted increased within- between-year...

10.1038/s41467-019-12479-w article EN cc-by Nature Communications 2019-10-24

Ecology Letters (2010) 13: 473–484 Abstract Habitat heterogeneity is often suggested as being important for the stability of populations, and promoted a means to aid conservation species, but evidence such an assumption poor. Here we show that heterogeneous landscapes contain variety suitable habitat types are associated with more stable population dynamics 35 British butterfly species from 166 sites. In addition, topographic may also promote stability. Our results were robust different...

10.1111/j.1461-0248.2010.01441.x article EN Ecology Letters 2010-02-08

Long‐range, seasonal migration is a widespread phenomenon among insects, allowing them to track and exploit abundant but ephemeral resources over vast geographical areas. However, the basic patterns of how species shift across multiple locations seasons are unknown in most cases, even though migrant comprise an important component temperate‐zone biota. The painted lady butterfly Vanessa cardui such example; cosmopolitan continuously‐brooded which migrates each year between Africa Europe,...

10.1111/j.1600-0587.2012.07738.x article EN Ecography 2012-10-16

Many species appear to be undergoing shifts in phenology, arising from climate change. To predict the direction and magnitude of future changes requires an understanding how phenology depends on climatic variation. Species show large-scale spatial variation (affected by differentiation among populations) as well year-to-year at same site predominantly local plasticity). Teasing apart temporal should allow improved predictions under This study is first quantify entire emergence pattern...

10.1111/j.1365-2486.2010.02308.x article EN Global Change Biology 2010-08-06

Summary Understanding the drivers of population abundance across species and sites is crucial for effective conservation management. At present, we lack a framework predicting which are likely to support abundant butterfly communities. We address this problem by exploring determinants among 1111 populations butterflies in UK , spanning 27 on 54 sites. Our general hypothesis that availability food resources strong predictor both within between species, but relationship varies systematically...

10.1111/1365-2664.12523 article EN Journal of Applied Ecology 2015-08-22

Abstract Ecological responses to climate change may depend on complex patterns of variability in weather and local microclimate that overlay global increases mean temperature. Here, we show high‐resolution temporal spatial temperature drives the dynamics range expansion for an exemplar species, butterfly Hesperia comma . Using fine‐resolution (5 m) models vegetation surface microclimate, estimate thermal suitability 906 habitat patches at species' margin 27 years. Population metapopulation...

10.1111/ele.12129 article EN Ecology Letters 2013-05-23

There has been widespread concern that neonicotinoid pesticides may be adversely impacting wild and managed bees for some years, but recently attention shifted to examining broader effects they having on biodiversity. For example in the Netherlands, declines insectivorous birds are positively associated with levels of pollution surface water. In England, total abundance butterfly species declined by 58% farmed land between 2000 2009 despite both a doubling conservation spending UK,...

10.7717/peerj.1402 article EN cc-by PeerJ 2015-11-24

Summary There is growing recognition as to the importance of extreme climatic events (ECEs) in determining changes species populations. In fact, it often extent climate variability that determines a population's ability persist at given site. This study examined impact ECEs on resident UK butterfly ( n = 41) over 37‐year period. The investigated sensitivity butterflies four extremes (drought, precipitation, heat and cold), identified site level, across each species' life stages. Variations...

10.1111/1365-2656.12594 article EN Journal of Animal Ecology 2016-10-31

Abstract Distribution maps of cetaceans and seabirds at basin monthly scales are needed for conservation marine management. These usually created from standardized systematic aerial vessel surveys, with recorded animal densities interpolated across study areas. However, distribution have previously not been possible because individual surveys restricted spatial temporal coverage. This develops an alternative approach consisting of: (a) collating diverse survey data to maximize coverage, (b)...

10.1111/1365-2664.13525 article EN Journal of Applied Ecology 2019-10-26

Extreme climatic events could be major drivers of biodiversity change, but it is unclear whether extreme biological changes are (i) individualistic (species- or group-specific), (ii) commonly associated with unusual and/or (iii) important determinants long-term population trends. Using time series for 238 widespread species (207 Lepidoptera and 31 birds) in England since 1968, we found that ‘crashes’ (outliers terms species' year-to-year changes) were 46% more frequent than ‘explosions’....

10.1098/rstb.2016.0144 article EN cc-by Philosophical Transactions of the Royal Society B Biological Sciences 2017-05-08

Abstract Resilient pollination services depend on sufficient abundance of pollinating insects over time. Currently, however, most knowledge about the status and trends pollinators is based changes in pollinator species richness distribution only. Systematic, long‐term monitoring urgently needed to provide baseline information their status, identify drivers declines inform suitable response measures. Power analysis was used determine number sites required detect a 30% change populations 10...

10.1111/1365-2664.13755 article EN cc-by Journal of Applied Ecology 2020-10-07

Significance The painted lady butterfly is an annual migrant to northern regions, but the size of immigration varies by more than 100-fold in successive years. Unlike monarch, breeds year round, and it has long been suspected that plant-growing conditions winter-breeding locations drive this high variability. However, regions where caterpillars develop over winter remained unclear. Here, we show for European summer population plant greenness savanna sub-Saharan Africa key driver spring...

10.1073/pnas.2102762118 article EN cc-by Proceedings of the National Academy of Sciences 2021-06-21

Abstract Species are thought to have more restricted niches towards their range boundaries, although this has rarely been quantified systematically. We analysed transect data for 41 butterfly species along climatic gradients within Britain and show that 71% of broader at sites with milder winters. Shifts in habitat associations considerable across most species’ ranges; averaged all species, we estimate if 26% individuals were associated the favoured on warmest transect, then 70% would be...

10.1111/j.1461-0248.2009.01367.x article EN Ecology Letters 2009-09-10

Summary 1. Abundance indices generated by the UK Butterfly Monitoring Scheme (UKBMS) have been influential in informing our understanding of environmental change and highlighting conservation priorities. Here, we critically evaluate standard ‘Pollard Walk’ methodology employed UKBMS. 2. We consider systematic sampling biases among different butterfly species biotopes using distance sampling. collected over 5000 observations on 17 at 13 study sites England Wales. fitted detection functions to...

10.1111/j.2041-210x.2011.00109.x article EN Methods in Ecology and Evolution 2011-03-28

Summary 1. Species distribution models (SDMs) are increasingly used in applied conservation biology, yet the predictive ability of these is often tested only on detection/non‐detection data. The probability long‐term population persistence, however, depends not upon patch occupancy but more fundamental parameters such as mean density and stability over time. 2. Here, we test estimated occurrence scores generated from SDMs built using species data against independent empirical for 20 bird...

10.1111/j.1365-2664.2012.02138.x article EN Journal of Applied Ecology 2012-04-30

Citizen scientists are increasingly engaged in gathering biodiversity information, but trade-offs often required between public engagement goals and reliable data collection. We compared population estimates for 18 widespread butterfly species derived from the first 4 years (2011-2014) of a short-duration citizen science project (Big Butterfly Count [BBC]) with those long-running, standardized monitoring collected by experienced observers (U.K. Monitoring Scheme [UKBMS]). BBC gathered during...

10.1111/cobi.12956 article EN cc-by Conservation Biology 2017-05-05

Most studies on the biological impact of climate change have focussed incremental warming, rather than extreme events. Yet responses species’ populations to climatic extremes may be one primary drivers ecological change. We assess resilience individual in terms their sensitivity to‐ and ability recover from‐ environmental perturbation. demonstrate method using a model species, ringlet butterfly Aphantopus hyperantus , analyse effects an drought event data from 79 British sites over 10 yr....

10.1111/j.1600-0587.2012.07665.x article EN Ecography 2012-10-30

Action to reduce anthropogenic impact on the environment and species within it will be most effective when targeted towards activities that have greatest biodiversity. To do this effectively we need better understand relative importance of different how they drive changes in species' populations. Here, present a novel, flexible framework reviews evidence for these drivers change uses explain recent alterations We review across four hundred sampled from broad range taxonomic groups UK. found...

10.1371/journal.pone.0151595 article EN cc-by PLoS ONE 2016-03-23
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