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WELCOME TO THE

EEC GROUP

NEWS

The latest news on papers, grants, and members joining the group!

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OVERVIEW

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WHAT WE DO

The experimental ecology & conservation group focusses on synthesising information from mathematical models, small-scale experimental systems, and long-term wild population data to learn more about the world around us, and in particular help make decisions about how to best preserve biodiversity into the future.

NOVEL TECHNIQUES

A specific focus is on developing new, exciting, and useful techniques to make the experimental systems we work with more realistic reflections of the world around us.

ITS ALL ABOUT THE BIG PICTURE

But our focus is always on how we can learn more about the natural world without having to carry out invasive or damaging experiments in the field.

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CURRENT PROJECTS

EARLY WARNING SIGNALS

Predicting the fate of biological systems is critical in the light of continued global change, especially in the field of conservation biology where at risk populations must be prioritised to make the most of limited resources. A long running interest of this group is developing warning signals of approach population, community, and ecosystem collapse based on temporal patterns in abundance, trait, and spatial data.

EXPERIMENTALLY TESTING CONSERVATION THEORY

Designing optimal conservation strategies is key in the face of limited funding and ever increasing anthropogenic stresses. A central theme to the group is using experimental systems to test and develop conservation theory.

TRACKING BIODIVERSITY CHANGE

Understanding whether biodiversity is changing is critical if we are to understand the impacts humanity is having on ecosystems, and whether management interventions are having the desired effects. Our group is working with Bristol City Council to produce a wildlife index to track biodiversity change in Bristol.

THE EFFECTS OF MULTIPLE STRESSORS

The effects of multiple stressors (e.g. including habitat loss, pollution, over harvesting, climatic change, and the introduction of invasive species) on global biodiversity is a continued concern. We are interested in the possible interactive effects of these stressors, and how this may affect populations and communities.

RESILIENCE AND RECOVERY IN FISHERIES

Fisheries are one of the most economic and ecologically important ecosystems on earth. However the vast majority are in a state of significant degradation. We are interested in how such systems might recovery, and the pathways they might take doing so, and how these pathways affect community structure and function.

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PEOPLE

Meet the Team

Alumni

Publications

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DATA

In line with the principals of open science and data sharing we are striving to make all the data that our lab group generates available via a github repository. This will take some time, but all data going forward will be uploaded to that site, and data from previous experiments (be that laboratory generated or simulation generated) will be made available as soon as possible.

CURRENT GRANTS

EFFECTS OF MULTIPLE STRESSORS ON THE GLOBAL DECLINE OF VERTEBRATE POPULATIONS

2020 - 2022

Leverhulme Trust

RPG-2019-368

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TIMELINE TO COLLAPSE

2020 - 2023

THE COHERENCE OF ECOLOGICAL STABILITY AMONG ECOSYSTEMS AND ACROSS ECOLOGICAL SCALES

2020 - 2024

JOIN THE GROUP

We are always looking for enthusiastic members to join the group, from masters students to post docs. Funding for these are available through a number of channels, depending on the career stage.

Please feel free to contact me any time to discuss the possibility of apply for one of these schemes and joining our team.

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Available positions

When positions are available links to the adverts will be placed here

CONTACT US

School of Biological Sciences
University of Bristol
Bristol Life Sciences Building
24 Tyndall Avenue
Bristol

England
BS8 1TQ

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Publications

In press
  • Stewart, K, Venditti, C., Carmona, C.,  Baker, J., Clements, C., Tobias, J., González-Suárez, M. Threat reduction must be coupled with targeted recovery programmes to conserve global bird diversity, Nature Ecology and Evolution, in press

  • Vives-Ingla, M., Capdevila, P., Clements, C., Stefanescu, C., Carnicer, J. Novel Regimes of Extreme Climatic Events Trigger Negative Population Rates in a Common Insect. Global Change Biology, in press

  • Pringle, S., ... Clements, C., ... et al. Opportunities and challenges for monitoring terrestrial biodiversity in the robotics age. Nature Ecology and Evolution, in press

2024
  • Linke, L., Clements, C. A Sixth Mass Extinction? How linguistic uncertainty shapes our understanding of the biodiversity crisis. Ecology and Evolution 14 (12), e70653

  • Li, D., Clements, C., Memmott. J. Isolation limits spring pollination in a UK fragmented landscape. PLos one, 19 (9), e0310679

  • Cerini, F., Jackson, J., Childs, D., Clements, C. Multivariate signals of population collapse in a high-throughput ecological experiment. Ecology, 105 (4), e4257

  • Johnson, T., Beckerman, A., Childs, D., Griffiths, C., Capdevila, P., Clements, C., Besson, M., Gregory, R., Evans, R., Thomas, G., Delmas, E., Webb, T., Freckleton, R. Overconfidence undermines global wildlife abundance trends. Nature,  628 (8009), 788-794

2023
  • O'Brien, D., Deb, S., Gal, G., Thackary, S., Dutta, P., Shin-Ichiro, May, L., Clements, C. Early warning signals require critical transitions in empirical lake data. Nature Communications, 7942.

  • Cerini, F., Wolfe, E., Besson, M., Clements, C. Phenotypic response to different predator strategies can be mediated by temperature. Ecology and Evolution, ece3.10474.

  • O'Brien, D., Deb, S., Sahil, S.,  Krishnan, N., Dutta, P., Clements, C. EWSmethods: an R package to forecast tipping points at the community level using early warning signals and machine learning models. Ecography, ecog.06674.

  • Stewart, K., Carmona, C., Clements, C., Venditti, C., Tobias, J., González-Suárez, M. Trait diversity metrics can perform well with highly incomplete datasets. Methods in Ecology and Evolution, 14, 2856-2872

  • Ledger, S., McRae, L., Loh, J., Almond, R., Boh, M., Clements, C. et al. Past, present, and future of the Living Planet Index. npj Biodiversity, 2, 12.

  • Li, D., Memmott, J., Clements, C. Corridor quality buffers extinction under extreme droughts in experimental metapopulations. Ecology & Evolution, in press. 

  • Cerini, F., Childs, D., Clements, C. Timeline to collapse. Nature Ecology and Evolution, early online. 

  • O'Brien, D., Gal, G., Thackary, S., Shin-Ichiro, S., Blanchard, J., Clements, C. Planktonic functional diversity changes in synchrony with lake ecosystem state. Global Change Biology, 29, 686-701.

  • Wolfe, E., Cerini, F., Besson, M., O'Brien, D., Clements, C. Spatiotemporal thermal variation drives diversity trends in experimental landscapes. Journal of Animal Ecology, 92, 430-441. 

2022
  • Besson, M., Alison, J., Bjerge, J., Gorochowski, T., Høye, T., Jucker, T.,  Mann, H., Clements, C. Towards the fully automated monitoring of ecological communities. Ecology Letters, 25, 2753-2775.

  • Baruah, G., Ozgul, A., Clements, C. Community structure determines the predictability of population collapse. Journal of Animal Ecology, 91, 1880-1891.

  • Capdevila, P., Noviello, N., McRae, L., Freeman, R., Clements, C. Global patterns of resilience decline in vertebrate populations. Ecology Letters, 25 (1), 240-251.

  • Capdevila, P., Noviello, N., McRae, L., Freeman, R., Clements, C. Body mass and latitude as global predictors of vertebrate populations exposure to multiple threats. Ecography, 12, e06309. 

  • Deb, S., Sidheekh, S., Clements, C., Krishnan, N., and Dutta, P. Machine learning methods trained on simple models can predict critical transitions in complex natural systems. Royal Society Open Science, 9: 211475.

  • Wolfe, E., Hammill, E., Memmott, J., Clements, C. Landscape configuration affects probability of apex predator presence and community structure in experimental metacommunities. Oecologia, 199, 193–204.

2021
  • O'brien, D., Clements, C. Early warning signal reliability varies with COVID-19 waves. Biology Letters, 17: 20210487.

  • Williams, N., McRae, L., Freeman, R., Capdevila, P., Clements, C. Scaling the extinction vortex: Body size as a predictor of population dynamics close to extinction events. Ecology and Evolution, 11, 7069-7079.

  • Baruah, G., Clements, C., Ozgul, A. Effect of habitat quality and phenotypic variation on abundance- and trait-based early warning signals of population collapses. Oikos, 130, 850-862.

  • Li, D., Clements, C., Shan, I., Memmott, J. Corridor quality affects net movement, size of dispersers, and population growth in experimental microcosms. Oecologia 195, 547-556.

2020
  • Arkilanian, A., Clements, C., Ozgul, A., Baruah, G. Effect of time-series length and resolution on abundance- and trait-based early warning signals of population declines. Ecology, in press.

  • Hammill, E., Clements, C. Imperfect detection alters the outcome of landscape scale management strategies for protected areas. Ecology Letters, 23: 682–691.

  • Baruah, G., Clements, C., Ozgul, A. Eco-evolutionary processes underlying early warning signals of population decline. Journal of Animal Ecology, 89:436–448.

2019
  • Clements, C.,  McCarthy, M., Blanchard, J. Early warning signals of recovery in complex systems. Nature Communications, 10:1681.

    • Recommended by F1000​

  • Baruah, G., Clements, C., Guillaume, F., Ozgul, A. When do shifts in trait dynamics precede population declines? The American Naturalist, 193, pp. 633–644.

2018
2017
2016
2015
2014
2013
Theses

Clements, C. "Extinction and environmental change: testing the predictability of species loss". http://dx.doi.org/10.6084/m9.figshare.1158947

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