Data from: Genetic diversity in tempo determines foraging range in ants
Data files
Apr 29, 2024 version files 725.03 KB
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activity_data.txt
691.63 KB
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early-late_patrilines_by_colony.txt
11.27 KB
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patriline_identity_for_workers.txt
18.78 KB
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README.md
3.35 KB
Abstract
The foraging behavior of a colony arises from the activity of individual workers. In this paper we explore the phenotypic differences among the workers of the western harvester ant, Pogonomyrmex occidentalis in order to understand the temporal pattern of foraging in colonies. We know that the genetic diversity of colonies influences the temporal pattern of foraging: with greater genetic diversity colonies begin foraging earlier and forage for greater duration.
We test two mechanisms to account for this pattern. The Temperature Hypothesis predicts that early foragers will be more active at lower temperatures than late foragers and will be the first workers to initiate foraging. Late foragers will be more active at high temperatures. The Tempo Hypothesis predicts that early foragers will be the first to forage because they have the higher overall tempo of activity at all temperatures.
We measure the movement activity of samples of early and late foragers from 32 colonies over a range of temperatures from 9-37̊C. We find that early workers are more active at all temperatures than late workers, supporting the Tempo Hypothesis. Early and late foragers tend to belong to different patrilines, suggesting that there is a genetic basis for the difference in the tempo of behavior. We also find that colonies that have greater number of patrilines, due to greater mating frequency by the queen, have a greater range temporal range of foraging.
README: Data from: Genetic diversity in tempo determines foraging range in ants
https://doi.org/10.5061/dryad.d2547d88b
These three data files are for the paper: Genetic diversity in tempo determines foraging range in ants.
The first file is ‘activity data.txt’
The 7 columns are:
WorkerID This is the unique worker identifier for all data. The numbers refer to the colony that the worker belongs to, an E
or L that identifies the worker as either an early or late forager and the last pair of numbers that indicate the
worker identity within the colony
Temp The temperature at which the activity data were collected
Mean The mean activity per minute at that temperature (degrees C)
Worker The designation of the worker identity within a colony and early/late category (typically 1-12)
Colony The colony designation for each worker
Early Whether the worker is an early forager (=1) or a late forager (=0)
Ant The designation of worker identity within a colony (typically 1-24)
The second file is: ‘patriline identity for workers.txt’
The five columns are:
WorkerID This is the unique worker identifier for all data. The numbers refer to the colony that the worker belongs to, an E
or L that identifies the worker as either an early or late forager and the last pair of numbers that indicate the
worker identity within the colony. This is the same ID as in the previous file.
Patriline The patriline designation within each colony
Colony The colony designation for each worker
Early Whether the worker is an early forager (=1) or a late forager (=0)
Ant The designation of worker identity within a colony (typically 1-24)
The third file is: ‘early-late patrilines by colony.txt’
The four columns are:
Colony The colony designation for each patriline
Patriline The patriline designation within each colony
Early Whether the data are for early (=1) or late(=0) patrilines
Frequency The number of workers with this patriline that are either early or late foragers. If the entry is zero, then there are
no workers with this patriline in that activity class.
Methods
The data were collected from the movement activity of early and late foragers from naturally occurring colonies of Pogonomyrmex occidentalis. Early workers were the first workers to begin foraging in the morning while late workers were the last to forage in the morning. The movement activity was measured from video image differencing over a range of temperatures. We report the movement for ten minute periods for individual workers at each temperature from 9-37̊C. We also report the patriline identity for each worker within each colony.