magellanic_penguins {ecoteach} | R Documentation |
Magellanic Penguin Foraging and Reproductive Data
Description
Data from satellite tracking of Magellanic penguins (Spheniscus magellanicus) at Punta Tombo, Argentina, spanning 23 breeding seasons. The dataset contains information on foraging site fidelity, trip characteristics, and reproductive success for individual penguins.
Usage
magellanic_penguins
Format
A data frame with 212 rows and 21 variables:
- SeasonYear
Integer, breeding season year
- PenguinID
Integer, unique identifier for each penguin
- PenguinSeq
Integer, sequential penguin number within season
- InstrumentSeq
Integer, instrument deployment sequence
- NTripPairsLong
Integer, number of long trip pairs
- DistBetMean
Numeric, mean distance between foraging sites (km)
- DistBetSD
Numeric, standard deviation of distance between sites (km)
- DistBetMin
Numeric, minimum distance between foraging sites (km)
- DistBetMax
Numeric, maximum distance between foraging sites (km)
- InstrType
Factor, type of tracking instrument used
- InstrModel
Character, model of tracking instrument
- NFledged
Integer, number of chicks that fledged successfully
- DurDaysMean
Numeric, mean trip duration in days
- TripDistMean
Numeric, mean trip distance (km)
- BearingMean
Numeric, mean bearing of foraging trips (degrees)
- PenguinSex
Factor, sex of penguin ("Male", "Female")
- NumTrips
Integer, total number of foraging trips
- NumChicksDeploy
Integer, number of chicks at deployment
- NumChicksStarved
Integer, number of chicks that starved
- DeployDurDays
Integer, deployment duration in days
- ChlaMean
Numeric, mean chlorophyll-a concentration
Source
Rebstock, G., Abrahms, B., & Boersma, D. (2022). Data from: Site fidelity increases reproductive success by increasing foraging efficiency in a marine predator. Dryad Digital Repository. doi:10.5061/DRYAD.8931ZCRSV
References
Rebstock, G.A., Abrahms, B. & Boersma, P.D. (2022). Site fidelity increases reproductive success by increasing foraging efficiency in a marine predator. Proceedings of the Royal Society B, 289(1975), 20220175.
Examples
# Load the dataset
data(magellanic_penguins)
# Basic exploration
head(magellanic_penguins)
summary(magellanic_penguins)
# Examine foraging efficiency by sex
boxplot(TripDistMean ~ PenguinSex, data = magellanic_penguins,
main = "Mean Trip Distance by Sex",
xlab = "Sex", ylab = "Mean Trip Distance (km)")
# Relationship between site fidelity and reproductive success
plot(magellanic_penguins$DistBetMean, magellanic_penguins$NFledged,
xlab = "Mean Distance Between Sites (km)",
ylab = "Number of Chicks Fledged",
main = "Site Fidelity vs Reproductive Success")