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mesocosm levels are required to tease out specific fungal functions and directly test the causality of |
important management decisions and environmental variables not manipulated here (e.g., understory |
composition). Second, field studies characterizing fungal communities on natural healthy tree islands |
and ghost islands would determine if fungal diversity on constructed islands closely reflects natural |
communities and help identify pathogens or other taxa involved in reduced ecosystem function. |
Collectively, the results of the work presented here and those of the suggested studies will help inform |
management that increases the benefit of fungal communities for the restoration and conservation of |
fungal diversity in this threatened ecosystem. |
Supplementary Materials: The following are available online at http://www.mdpi.com/1424-2818/12/9/0324/s1: |
Figure S1: The layout of LILA includes eight tree islands, half of which were constructed with peat cores and half of |
which were constructed with limestone cores. Limestone core islands are indicated with hashed lines. Each island |
was divided into four quadrants in 2006 and randomly assigned to one of four tree planting density treatments. |
Initial tree planting density is indicated by the color of quadrants on each island; red: 1 m, green:1.67 m, blue:2.33 m, |
purple: 3 m spacing (i.e., distance between trees), Figure S2: An example map of one tree island within LILA. |
Each colored point represents one of 8 different tree species, initially planted in four density treatments. Each white |
plus indicates locations where soil samples were collected. The following tree species were planted in 2006 and |
are included in the tree species legend above: AG = Annona glabra; AR = Acer rubrum; BS = Bursera simaruba; |
CI = Chrysobolanus icaco; FA = Ficus aurea; IC = Ilex cassine; MC = Morella cerifera; PP = Persea palustris. In 2007, |
Eugenia axillaris and Myrsine floridana were added to replace trees that did not survive initial plantings, Figure S3: |
Distribution of fungal functional guilds (A) and trophic modes (B) across the eight experimental tree islands. |
(A) Each color represents the relative abundance of one of the 15 guilds to which FUNGuild assigned fungal taxa. |
(B) Each color represents the relative abundance of one of the four trophic modes that fungal taxa were assigned |
by FUNGuild. In both graphs, each vertical bar represents an individual site, and sites are grouped based on tree |
island (represented by numbers 1–8, island numbers 1, 4, 6, and 7 were limestone core islands and 2, 3, 5 and 8 |
were peat core islands), Table S1: Indicator taxa for limestone (L) and peat (P) core island communities identified |
by the indicator taxa analysis. A is the probability that a site belongs to a core type, given the taxa has been found |
at that site. B is the probability of finding that taxa in sites with that core type. The indicator values are between 0 |
and 1 with greater indicator values demonstrating greater specificity of a taxa to that core type. |
Author Contributions: Conceptualization, B.K.A. and M.E.A. with advice from E.C., F.S., M.S.R., and S.L.S.; |
methodology, all authors; experimental facility management, E.C. and F.S. formal analysis, B.K.A.; investigation, |
Diversity 2020, 12, 0324 13 of 17 |
B.K.A. and M.E.A.; data curation, B.K.A., M.S.R., J.P.S., and S.L.S.; writing—original draft preparation, |
B.K.A. and M.E.A.; writing—review and editing, all authors; visualization, B.K.A.; supervision, M.E.A.; |
funding acquisition, M.E.A. All authors have read and agreed to the published version of the manuscript. |
Funding: This study has been supported primarily by funding from the South Florida Water Management District |
to M.E.A. with additional support from NSF DEB-1922521 to M.E.A. and the NSF Graduate Research Fellowship |
Program to B.K.A. |
Acknowledgments: We thank D. Hernandez, K. Kiesewetter, D. Revillini, C. Searcy, C. Mothes, H. Howell, |
and S. Clements for feedback on this manuscript and J. Richards, J. Orias, K. Maravillas and K. Nguyen for |
assistance with field sample and data collections. We also acknowledge the South Florida Water Management |
District for access to DBHydro. |
Conflicts of Interest: The authors declare no conflict of interest. |
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