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Published on: November 25, 2016
Temporal development and collapse of an Arctic plant-pollinator network
Clementine Pradal1, Jens M Olesen, Carsten Wiuf
1Bioinformatics Research Centre, Aarhus University, C, F, Mollers Alle 8, Building 1110, DK-8000 Aarhus C, Denmark.
BMC Ecology
|December 8, 2009
Summary
Temporal dynamics of Arctic plant-pollinator networks were modeled, revealing consistent assembly/disassembly patterns despite community changes. The network collapses seasonally due to internal dynamics, not weather, highlighting its inherent fragility.
Area of Science:
- Ecology
- Network Science
- Mathematical Modeling
Background:
- Studying temporal dynamics of plant-pollinator networks is challenging, requiring extensive observation.
- Understanding these dynamics is crucial for network sustainability and response to environmental changes like global warming.
Purpose of the Study:
- To model and describe the temporal dynamics of an Arctic plant-pollinator network over two years.
- To investigate the mechanisms driving daily network assembly and disassembly.
Main Methods:
- Development of a simple mathematical model with parameters for link dynamics (entry, exit, connection).
- Analysis of network behavior over two consecutive years in the Arctic.
Main Results:
- Network dynamics were consistent across both years, despite pollinator turnover and varying climate.
- A seasonal network collapse occurred in both years, independent of weather, suggesting internal drivers.
- Approximately 80 pollinator species are available, with 75-80% observed annually.
- The network did not reach equilibrium before its seasonal collapse.
Conclusions:
- A simple mathematical model effectively describes Arctic plant-pollinator network dynamics.
- The model facilitates understanding network topology changes and the impact of climate on these ecological networks.
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