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This is a paleolimnological analysis using tidypaleo in R. View the Github page to walk through each step of the analysis.

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johannabosch/Paleolimnological_Analysis_in_R

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Paleoecological Analysis in R

Study overview

This is a public repo that can be used to learn how to conduct a paleoecological analysis in R. The project methods described here are formally reviewed and cited in the following paper. Please use this citation to cite this repository:

Bosch J, Álvarez-Manzaneda I, Smol J, Michelutti N, Robertson GJ, Wilhelm SI, Montevecchi WA. 2024 Blending census and paleolimnological data allows for tracking the establishment and growth of a major gannet colony over several centuries. Proceedings of the Royal Society B [in review].

Accessing the data

A list of each of the data files from the /data folder and their contents:

File name Descriptions
FileS1_ColonialSeabirdDatabase_WilhelmSI.csv Historical population reports collected for seabird species nesting in Cape St. Mary’s Ecological Reserve from 1883-2018. A blank cell indicates that population counts were not collected for that year.
FileS2_MonitoringData.csv Raw monitoring data from File S1 used to align population data to the proxies.
FileS3_Dating_CSM-IMP.csv and File S4_Dating_CSM-REF.csv Table containing 210Pb dating profiles over the depth of the impact core (CSM-IMP) and reference core (CSM-REF).
FileS5_ProxyData_CSM-IMP.csv and FileS6_ProxyData_CSM-REF.csv Table containing the isotope, metal(loid), chlorophyll a, and diatom count data for the depths of the sediment core collected from the reference pond.
File S7_Metalloids_CSM-IMP.csv and File S8_Metalloids_CSM-REF.csv Table of all metal(loid)s analyzed for the impact core and reference core.
FileS9_ZScores_CSM-IMP.csv Z-score data for the isotope, metal(loid)s, chlorophyll a, and diatom count for the depths of the sediment core collected from the impact pond.

Scripts and Figures

Here is a list of all the scripts used in this analysis (see /scripts) and the final figures produced by each script.

Proxy Alignment with Population Data

Proxy Alignment with Population Data

Generated using: scripts/Z_score_analysis.R

Broken Stick Analysis for Metals

Broken Stick Analysis for Metals

Generated using: scripts/breakpoint_analysis_metals.R

Core Activity

Core Activity

Generated using: scripts/dating_profiles.R

Core Age Model

Core Age Model

Generated using: scripts/dating_profiles.R

GAM Depth Plot

GAM Depth Plot

Generated using: scripts/GAM_depth.R

Nested Metals Plot

Nested Metals Plot

Generated using: scripts/breakpoint_analysis_metals.R

Paleostratigraphies

Paleostratigraphies

Generated using: scripts/paleostratigraphies.R

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