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Description of burrow structure for four crayfish species (Decapoda: Astacoidea: Cambaridae)

Florey, Cassidy L
http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1555413606702675

Abstract Details

2019, Master of Science (MS), Bowling Green State University, Biological Sciences.
Crayfish use burrows for predator avoidance, desiccation prevention, foraging, and brood care. Based on their burrow ecology, species of crayfish can be categorized as tertiary, secondary, or primary burrowers. Primary burrowers are semi-terrestrial and highly dependent on burrows for survival. Secondary and tertiary burrowers have decreased burrow dependence and complexity. While most literature provides information about the function of burrows, there has been limited investigation into specifics of burrow structure. The purpose of this study is to describe burrow structure of four crayfish species: the primary burrowing species Lacunicambarus diogenes Girard, 1852 and Creaserinus fodiens Cottle, 1863, and the tertiary burrowing species Faxonius rusticus Girard, 1852 and Faxonius propinquus Girard, 1852. In the field, 17 crayfish burrows were filled with polyester resin. Cured burrow casts were excavated, and photogrammetry was used to recreate casts as 3-D models. Burrow depth, number and widths of openings, number and widths of chambers, and number of branches were recorded. Multiple factor analysis (MFA) was performed on burrow casts, with response variables separated into two groups: soil particle classification and burrow characteristics. In regard to variance in data, 33.1% was explained by dimension one (burrow size), and 20.9% was explained by dimension two (fine-grained sediment). On the MFA plot, 95% confidence interval ellipses for F. rusticus and F. propinquus overlapped, with both ellipses to the left of the vertical axis and below the horizontal axis. The C. fodiens ellipse was to the left of the vertical axis and above the horizontal axis. The L. diogenes ellipse was to the right of the vertical axis, and the mean was above the horizontal axis. Each species was also found to create a stereotyped burrow shape. This study contributes to the growing body of work on crayfish burrow structure, which has implications for future work on crayfish biology.
Paul Moore, PhD (Advisor)
Moira van Staaden, PhD (Committee Member)
Daniel Wiegmann, PhD (Committee Member)
35 p.
Biology; Ecology
3-D modeling; Astacidea; burrow; crayfish; Creaserinus; Faxonius; Lacunicambarus; photogrammetry

Recommended Citations

Citations

  • Florey, C. L. (2019). Description of burrow structure for four crayfish species (Decapoda: Astacoidea: Cambaridae) [Master's thesis, Bowling Green State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1555413606702675

    APA Style (7th edition)

  • Florey, Cassidy. Description of burrow structure for four crayfish species (Decapoda: Astacoidea: Cambaridae). 2019. Bowling Green State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1555413606702675.

    MLA Style (8th edition)

  • Florey, Cassidy. "Description of burrow structure for four crayfish species (Decapoda: Astacoidea: Cambaridae)." Master's thesis, Bowling Green State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1555413606702675

    Chicago Manual of Style (17th edition)

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This open access ETD is published by Bowling Green State University and OhioLINK.