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The influence of environmental and biotic filters on invertebrate community dynamics and spatial synchrony

Buchanan, Jacob
http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1704464704459844

Abstract Details

2024, Doctor of Philosophy (Ph.D.), Bowling Green State University, Biological Sciences.
Each chapter of this dissertation is intended to address a piece of the central hypothesis that complex, interacting biotic and abiotic filters drive community dynamics, including temporal synchrony between communities arising from distant propagule sources. In Chapter I, I examine the influence of three different synchrony metrics on measures of similarity between real and simulated time series, comparing methods for identifying clusters of more synchronous populations or communities, and revealing environmental drivers of those clusters. My results for this study indicate that wavelet analysis works best if the data have high frequency effects or high levels of noise. Empirical orthogonal functions work well if there are large differences in between-site magnitudes. If there are phase-lagged effects of interest, cross-correlation or empirical orthogonal function work well. For all other cases, each of these three metrics performed similarly. Therefore, these metrics may provide complimentary information if each are used to analyze the same dataset. Chapter II quantifies the filtering effects of temperature, egg bank composition, and disturbance on wetland invertebrate community dynamics and Chapter III quantifies the filtering effects of temperature, egg bank composition, and predation on wetland invertebrate community dynamics. Both chapters employ in-field mesocosm experiments in 100-gallon cattle tanks that were seeded with invertebrate propagules from either local ecosystems or from 5 different states. My results for these studies indicate that prairie pothole wetland communities are largely resistant to fluctuations in water levels though a few taxa (cladocerans, clam shrimp, fairy shrimp, damselfly larvae) saw decreased abundances in certain cases. Small changes in temperature (+1.1 °C) had little effect on the community except for intensifying the impact of the drawdown on clam shrimp and fairy shrimp. A greater change in temperature (+2.0 °C) led to more abundant clam shrimp and green algae, and larger-sized fairy shrimp, clam shrimp, and dytiscid larvae Predation by diving beetles led to decreased abundances of clam shrimp under warmer conditions or decreased abundances of copepods where alternative prey were scarce. In total, this work is a step toward improved understanding of the temporal dynamics of distant ecological communities.
Kevin McCluney (Committee Chair)
Helen Michaels (Committee Member)
Chris Patrick (Committee Member)
Abby Braden (Other)
Jeffrey Miner (Committee Member)
219 p.
Biology; Conservation; Ecology; Entomology
community dynamics; spatial synchrony; CCF; EOF; wavelet; wetlands; seasonal wetlands; egg bank; climate change; local adaptation; predation; apparent competition; macrosystems; invertebrates; crustaceans; Coleoptera; Branchiopoda; Dytiscidae; mesocosm

Recommended Citations

Citations

  • Buchanan, J. (2024). The influence of environmental and biotic filters on invertebrate community dynamics and spatial synchrony [Doctoral dissertation, Bowling Green State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1704464704459844

    APA Style (7th edition)

  • Buchanan, Jacob. The influence of environmental and biotic filters on invertebrate community dynamics and spatial synchrony. 2024. Bowling Green State University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1704464704459844.

    MLA Style (8th edition)

  • Buchanan, Jacob. "The influence of environmental and biotic filters on invertebrate community dynamics and spatial synchrony." Doctoral dissertation, Bowling Green State University, 2024. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1704464704459844

    Chicago Manual of Style (17th edition)

bgsu1704464704459844
155
© 2024, some rights reserved.Creative Commons License The influence of environmental and biotic filters on invertebrate community dynamics and spatial synchrony by Jacob Buchanan is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by Bowling Green State University and OhioLINK.