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Data and code associated with: Gora, EM, DeFilippis, DA., Schnitzer, SA. 2024. Inferring drivers of liana mortality from associated patterns of tree death. Proceedings of the Royal Society B.

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posted on 2024-05-07, 20:24 authored by Evan Gora, David DeFilippis, Stefan Schnitzer

Lianas are major contributors to tropical forest dynamics, yet we know little about their mortality. Using overlapping censuses of the lianas and trees across a 50-ha stand of moist tropical forest, we contrasted community-wide patterns of liana mortality with relatively well-studied patterns of tree mortality to quantify patterns of liana death and identify contributing factors. Liana mortality rates were 172% higher than tree mortality rates, but species-level mortality rates of lianas were similar to trees with “fast” life history strategies and both growth forms exhibited similar spatial and size-dependent patterns. The mortality rates of liana saplings (<2.1 cm in diameter), which represent about 50% of liana individuals, decreased with increasing disturbance severity and remained consistently low during post-disturbance stand thinning. By contrast, larger liana individuals and trees of all sizes had elevated mortality rates in response to disturbance and their mortality rates decreased over time since disturbance. Within undisturbed forest patches, liana mortality rates increased with increasing soil fertility in a manner similar to trees. The distinct responses of liana saplings to disturbance appeared to distinguish liana mortality from that of trees, whereas similarities in their patterns of death suggest that there are common drivers of woody plant mortality.

File list, includes 14 files (3 .xlsx, 8 .R files, and 3 .RData files):

ReadMe.xlsx. - this contains definitions for all variables in the .xlsx data files.

habitat_chemistry_covariates.xlsx

individs_undisturbed.xlsx

disturbance_individuals_21mm_split_2021-4-28.R

mature_individuals_DBHbins_ov21mm.R

mature_individuals_DBHbins_un21mm.R

mortality_total_sizedependence_2022-3-21.R

mortality_total_sizedependence_2024-3-28.R

recovery_density_21mm_split.R

recovery_individuals_21mm_split.R

spatial_analyses_individuals.R

all.tree.data.RData

lianas_trim_updated.RData

quadrat_metrics.RData



Funding

Graduate Research Fellowship Program (GRFP)

Directorate for Education & Human Resources

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Determining the Functional Basis for Increasing Liana Abundance in Neotropical Forests

Directorate for Biological Sciences

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Do Lianas Cause Chronic Disturbance and Alter Successional Trajectories in Tropical Forests?

Directorate for Biological Sciences

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Smithsonian Institution, Earl S. Tupper Fellowship

History

Geographic description

Barro Colorado Island (BCI) in central Panama

Geographic coordinates

(9.15°N, 79.85°W)

Time period

1980 -2017 For this paper, data collection is complete.

Methodology

See methods published in: Gora, EM, DeFilippis, DA, and SA Schnitzer. 2024. Inferring drivers of liana mortality from associated patterns of tree death. Proceedings of the Royal Society B. DOI: 10.1098/rspb.2024-0808.

Taxonomic species or groups

Trees and lianas (angiosperms)

Secondary Data Contact

datamanagement@caryinstitute.org

Data Sharing Statement

The Cary Institute of Ecosystem Studies furnishes code and data under the following conditions: The code or data have received quality assurance scrutiny, and, although we are confident of their accuracy, Cary Institute will not be held liable for errors in the code or data. Code and data are subject to change resulting from updates in data screening or models used. To cite code or data, click on the Cite button on this page.

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