Acorns#

Acorn size, tree height and geographic range for 39 species of oak (Quercus L.) native to North America.

From the authors: “Seed size can be an important factor influencing the extent of the range of a plant species that has recently expanded or shifted the area it occupies as a consequence of climatic changes. A positive correlation exists between acorn size and geographical range of the North American oaks (Quercus L.) of eastern North America. An independent analysis of oaks native to the California region suggests that this is a continental pattern.” Oak 39, Quercus tomentella Engelm , is only found on islands off the western coast.

Initialization#

library(fosdata)
data <- fosdata::acorns

Accessing fields#

data <- fosdata::acorns
Acorn_size <- data$Acorn_size # Just a random field in the dataset

Interactive R Sample#

You can use the R editor below to interactively explore the dataset and generate plots. This contains a fully self-contained R environment with fosdata, ggplot2, and dplyr loaded.

No plot generated yet.

LLM instructions#

If using an LLM, you can copy-paste the following instructions to accompany your prompt to inform the model of the fields and their types in the dataset.

The fosdata::acorns dataset containing the following fields:

fields[5]{name,type,values}:
  Species,character,n/a
  Region,factor,[Atlantic,California]
  Range,integer,n/a
  Acorn_size,numeric,n/a
  Tree_height,numeric,n/a

Fields#

Source#

Aizen, Marcelo & Patterson III, William. (1990). Acorn Size and Geographical Range in the North American Oaks (Quercus L.). Journal of Biogeography. 17. 327. 10.2307/2845128. https://www.jstor.org/stable/2845128