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Testing macroecological theory using simplified systems

Project description

Understanding assembly rules and community change

Community assembly patterns reveal the processes that form the identity and population of species within ecological communities. To fully understand assembly rules and community changes, we need to take into consideration a wide range of interrelated factors. However, communities are extremely complex, enclosing thousands of species and millions of interspecific interactions, and future scenarios do not address the chaotic systems where even small changes can generate unpredictable consequences. The EU-funded CAWEB project will use cave communities to investigate the eco-evolutionary processes that form functional and taxonomic diversity in subterranean spider communities on a continental scale. By combining pioneering algorithms and computer simulations, the project will model assembly rules and future change in space and time and investigate climate change impact predictions.

Objective

Community assembly, how they change in space and time, and how they will be affected by global threats, is one of the most pressing issues in ecology and conservation biology. To fully understand assembly rules and community change, one has to delve into multiple interrelated factors, such as the history of environmental and habitat changes in the past, current biotic and abiotic factors, spatial constraints and future scenarios for all these. Yet, two factors have prevented us from obtaining a complete picture for any organism. First, communities are extremely complex, typically encompassing thousands of species and millions of interspecific interactions. Second, future scenarios are overwhelming to model without the challenge of dealing with chaotic systems, where even small changes can lead to large, unpredictable, consequences. Here, I propose to use cave communities as the simplest and easiest setting to model assembly rules and future change across space and time. Caves offer unique opportunities for eco-evolutionary studies because they are characterized by a low abundance and diversity of organisms and interactions, they receive limited external inputs and are easily modelled. By combining a range of state-of-art algorithms and computer simulations, I will investigate the eco-evolutionary processes that shape functional and taxonomic diversity in subterranean spider communities at a continental scale, as well as the sensitivity of specialised species to climate alterations. I will rely on extensive datasets already collected and try to answer the question: what drives community assembly across space and time, and how can we predict the consequences of climate change on current biomes?. The project will be implemented at the Finnish Natural History Museum, and will be supervised by Dr Pedro Cardoso. An intersectoral secondment in mechanistic modelling at Helmholtz Centre for Environmental Research, supervised by Prof Volker Grimm, is also anticipated.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)

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Call for proposal

(opens in new window) H2020-MSCA-IF-2019

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Coordinator

HELSINGIN YLIOPISTO
Net EU contribution
€ 190 680,96
Address
FABIANINKATU 33
00014 Helsinki
Finland
Region
Manner-Suomi Helsinki-Uusimaa Helsinki-Uusimaa
Activity type
Higher or Secondary Education Establishments
Links
Total cost
€ 190 680,96