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From theory to expe...
From theory to experimental design : Quantifying a trait-based theory of predator-prey dynamics
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- Laubmeier, A. N. (författare)
- Center for Research in Scientific Computation, North Carolina State University, Raleigh, NC, USA
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- Wootton, Kate (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology,Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
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- Banks, John E. (författare)
- Undergraduate Research Opportunities Center, California State University, Monterey Bay, Seaside, CA, USA,California State University Monterey Bay
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- Bommarco, Riccardo (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology,Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
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- Curtsdotter, Alva (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology,Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
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- Jonsson, Tomas (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology,Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
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- Roslin, Tomas (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för ekologi,Department of Ecology,Department of Ecology, Swedish University of Agricultural Sciences, Uppsala, Sweden
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- Banks, H. T. (författare)
- Center for Research in Scientific Computation, North Carolina State University, Raleigh, NC, USA
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(creator_code:org_t)
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- 2018-04-25
- 2018
- Engelska.
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Ingår i: PLOS ONE. - : Public Library of Science. - 1932-6203. ; 13:4
- Relaterad länk:
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Successfully applying theoretical models to natural communities and predicting ecosystem behavior under changing conditions is the backbone of predictive ecology. However, the experiments required to test these models are dictated by practical constraints, and models are often opportunistically validated against data for which they were never intended. Alternatively, we can inform and improve experimental design by an in-depth pre-experimental analysis of the model, generating experiments better targeted at testing the validity of a theory. Here, we describe this process for a specific experiment. Starting from food web ecological theory, we formulate a model and design an experiment to optimally test the validity of the theory, supplementing traditional design considerations with model analysis. The experiment itself will be run and described in a separate paper. The theory we test is that trophic population dynamics are dictated by species traits, and we study this in a community of terrestrial arthropods. We depart from the Allometric Trophic Network (ATN) model and hypothesize that including habitat use, in addition to body mass, is necessary to better model trophic interactions. We therefore formulate new terms which account for micro-habitat use as well as intra-and interspecific interference in the ATN model. We design an experiment and an effective sampling regime to test this model and the underlying assumptions about the traits dominating trophic interactions. We arrive at a detailed sampling protocol to maximize information content in the empirical data obtained from the experiment and, relying on theoretical analysis of the proposed model, explore potential shortcomings of our design. Consequently, since this is a "pre-experimental" exercise aimed at improving the links between hypothesis formulation, model construction, experimental design and data collection, we hasten to publish our findings before analyzing data from the actual experiment, thus setting the stage for strong inference.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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