Data from: Home is where the high-quality resources are: nursery characteristics and territory distribution suggest reproductive resource defense in golden rocket frogs
Data files
Oct 02, 2023 version files 19.57 KB
-
Beebei_PoolData2023.csv
-
Brom_locations_2017.csv
-
Broms_Goop_2017.csv
-
Male_recapture_locations_2017.csv
-
README.md
Abstract
For externally fertilizing animals, the early stages of development are often the most precarious. In the face of multiple abiotic and biotic stressors, parents must assess and select rearing sites that maximize the probability of offspring survival. This is particularly true for Neotropical poison frogs, many of which transport tadpoles to small pools of water called phytotelmata that serve as larval-rearing sites. In these systems, pool choice can have a large effect on offspring growth and survival. Here, we studied the golden rocket frog (Anomaloglossus beebei, Aromobatidae), a territorial phytotelm-breeding frog that lives exclusively in giant tank bromeliads (Brocchinia micrantha), to examine phytotelm selection and reproductive resource defense. We first quantified the characteristics of phytotelmata and found that tadpoles were more likely to occur in pools with low levels of mucilage and in leaves at intermediate heights on the plant. We additionally found that low mucilage pools have significantly clearer water, have higher concentrations of dissolved oxygen, and are exposed to lower levels of photosynthetically active radiation. We then mapped the spatial distribution of pools with low levels of mucilage in relation to male territories and found that these “clear” pools are (1) more likely to be within male territories than outside of them, and (2) territory centroids are closer to clear pools than are random locations. Overall, our results show that male golden rocket frogs defend territories that include preferred tadpole deposition sites, suggesting a direct relationship between high-quality reproductive resources and territory defense.
README: Data from: Home is where the high-quality resources are: nursery characteristics and territory distribution suggest reproductive resource defense in golden rocket frogs
https://doi.org/10.5061/dryad.66t1g1k74
README for data files and R code associated with the paper:
Fouilloux CA, Goyes Vallejos J, Tumulty JP. Home is where the high-quality resources are: nursery characteristics and territory distribution suggest reproductive resource defense in golden rocket frogs. Evolutionary Ecology.
These datasets contain data and code for two different sets of analyses. The first dataset contains biotic and abiotic characteristics of bromeliad pools that were surveyed for the presence or absence of golden rocket frog (Anomaloglossus beebei) tadpoles. The associated R code analyzes which characteristics predict the presence of tadpoles. The second dataset contains several data files with spatial data on the locations of male frogs, bromeliads, and associated characteristics of those bromeliads. The associated R code analyzes the spatial association between territorial males and characteristics of bromeliads.
The data for this paper was collected by Fouilloux CA, Goyes Vallejos J, and Tumulty JP.
Analyses were performed by Fouilloux CA and Tumulty JP.
Description of the data and file structure
'Beebei_PoolData2023.csv': each row corresponds to a pool in a bromeliad and the data are different characteristics measured about that pool.
Columns:
- Bromeliad: Unique identifier for each plant
- DO: Dissolved oxygen reading, in mg/L
- Temp: Temperature in degrees Celcius
- PAR: Phytosynthetically active radiation above pool
- Water: categorical variable describing pool turbidity (clear/turbid)
- Full_Sun: Measurement of PAR taken under open sky, without any canopy cover (see paper for details)
- Depth: Pool depth in cm
- Width: Pool width in cm
- Volume: Pool volume in mL
- Tad_Count: Number of tadpoles in pool
- Pool_ID: Unique identifier for each pool within a bromeliad
- PercPAR: PAR expressed as a percentage of full sun PAR (PAR/Full_Sun)*100
- logPAR: Logarithm of PercPAR
- YNTad: Binary variable expressing whether or not a tadpole was in the pool
- L_H: Categorical variable describing leaf height (Low, middle, or High)
- Goop_Cat: Categorical variable describing level of mucilage (None, Low, Medium, High
- Goop_Count: Numerical variable describing level of mucilage (0, 1, 2, 3)
'Male_recapture_locations_2017.csv': Capture locations of individual males, measured as the distance and bearing of the location from the nearest reference flag in a 25 X 25 m grid, with reference flags located every 2.5m.
Columns:
- ID: Unique identifier for each male
- Sex: Sex of the individual frog
- Dist: Distance, in meters, to the male's capture location from the nearest reference flag in the grid
- Bearing: Compass bearing, in degrees, to the male's capture location from the nearest reference flag in the grid
- Ref_flag_x: Distance, in meters, of the reference flag from the origin along the one axis ('x axis') of the grid
- Ref_flag_y: Distance, in meters, of the reference flag from the origin along the other axis ('y axis') of the grid
'Brom_locations_2017.csv': Locations of all bromeliads at the site, measured as distance and bearing to the center of the plant from the nearest reference flag in the 25 X 25m grid, with reference flags located every 2.5m.
Columns:
- Brom: Unique identifier for each bromeliad. The bromeliad IDs here also correspond to the bromeliad IDs in 'Broms&Goop_2017.csv'
- Dist: Distance, in meters, to the center of the bromeliad from the nearest reference flag in the grid
- Bearing: Compass bearing, in degrees, to the center of the bromeliad from the nearest reference flag in the grid
- Ref_flag_x: Distance, in meters, of the reference flag from the origin along the one axis ('x axis') of the grid
- Ref_flag_y: Distance, in meters, of the reference flag from the origin along the other axis ('y axis') of the grid
- Leaf_Diam: Diameter, in meters, of the bromeliad, measured from the outermost edge of one leaf to the outermost edge of a leaf on the opposite side of the plant
- Phyto_Diam: Diameter, in meters, of the water-holding center of the plant, measured from the outermost edge of the waterline in a pool on one side of the plant to the outermost edge of the waterline in a pool on the opposite side of the plant
'Broms&Goop_2017.csv': The number pools that have no mucilage, low mucilage, and high mucilage levels in each bromeliad.
Columns:
- Brom: Unique identifier for each bromeliad, the bromeliad IDs here correspond to the bromeliad IDs in 'Brom_locations_2017.csv'
- Clear_pools: The number of pools with no mucilage
- Low_Goop_pools: The number of pools with low levels of mucilage
Code/Software
'2023_EvoEco_Beebei.Rmd' is the R script used to analyze the characteristics of bromeliad pools that best the presence of golden rocket frog tadpoles. This script loads in the data file 'Beebei_PoolData2023.csv'
'Territory_goop_spatial_association.R' is the R script used to analyze the spatial associations between male territories and clear pools in bromeliads. This script loads in the data files 'Male_recapture_locations_2017.csv', 'Brom_locations_2017.csv', and 'Broms&Goop_2017.csv'
Methods
See paper for methods.