Data from: Species-specific responses to warming alter community composition
Data files
Nov 29, 2021 version files 19.36 KB
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DragonflyEmergence2020.csv
5.17 KB
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IGPtrials2020.csv
3.67 KB
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PlanktonCounts.csv
404 B
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survival_data2020.csv
9.31 KB
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TankTreatments.csv
807 B
Abstract
1. Species are responding to global climate change in varied and nuanced ways. However, how species-specific responses to climate change affect interactions among species remains poorly understood. It is important to understand species interactions under potential climate change scenarios because those interactions can in turn alter community dynamics.
2. In this study, we conducted two complementary experiments to examine how simulated warming might alter larval intraguild predation (IGP) rates and resulting adult assemblage composition in three species of North American dragonflies: Pachydiplax longipennis, Plathemis lydia, and Libellula luctuosa.
3. First, using both P. longipennis and L. luctuosa, we isolated inter- and intraspecific pairs of larval dragonflies of different size differentials to determine how size and species identity might influence IGP rates.
4. In tandem, we conducted a year-long mesocosm experiment with all three species to assess how simulated warming and heat waves influenced the resulting adult dragonfly assemblages.
5. IGP trials revealed that P. longipennis individuals were much more likely to engage in IGP than L. luctuosa, regardless of size differential. In the mesocosm experiment, emerging adult assemblages were dominated by P. longipennis individuals, a pattern that was most pronounced in the control treatment.
6. Our results indicate that while P. longipennis may be the competitively dominant species under current ambient conditions, warming may alter this dynamic and lessen the dominance of this species on resulting assemblage composition.
Usage notes
README file for Data from "Species-specific responses to warming alter community composition" by Julia R. Tituskin, Shane M. Waddell, and Karen E. Mabry
There are 5 data files associated with this contribution.
The file “TankTreatments.csv” includes information about the temperature treatments applied to experimental tanks.
Column headings are defined as:
Block: denotes the experimental block
TankID: an identifier for individual experimental tanks
Treatment: the temperature treatment as categorized in the paper - control, warmed, and variable
Notes: includes information about which tanks/blocks were removed from statistical analysis due to heater malfunctions. To prevent confusion, data from these tanks were removed from all other uploaded data files.
The file “PlanktonCounts.csv” includes plankton abundance data from each experimental tank.
Column headings are defined as:
TankID: an identifier for individual experimental tanks
Treatment: the temperature treatment as categorized in the paper - control, warmed, and variable
Block: denotes the experimental block
Ostracoda: abundance of ostracods
Cladocera: abundance of cladocerans
Copepoda: abundance of copepods
Rotifera: abundance of rotifers
The file “DragonflyEmergence2020.csv” contains data on adult dragonflies emerging from experimental tanks.
Column headings are defined as:
Date: date of emergence in MM/DD/YYYY format
Block: denotes the experimental block
TankID: an identifier for individual experimental tanks
Treatment: the temperature treatment as categorized in the paper - control, warmed, and variable
Spp: species: “palo” = Pachydiplax longipennis, “plly” = Plathemis lydia, “Lilu” = Libellula luctuosa
Indiv: a unique identifier for each individual
Head width (mm): individual head width in mm
Thorax (mm): individual thorax length in mm
Forewing (cm): individual forewing length in cm
Hindwing length (cm): individual hindwing length in cm
Hindwing width (mm): individual hindwing width in mm
Sex: individual sex: m = male, f = female
Notes: any notes taken about the individual at the time of data collection
The file “survival_data2020.csv” contains data on the survival outcome of individuals in the mesocosm experiment.
Column headings are defined as:
Block: denotes the experimental block
TankID: an identifier for individual experimental tanks
Treatment: the temperature treatment as categorized in the paper - control, warmed, and variable
Spp: species: “palo” = Pachydiplax longipennis, “plly” = Plathemis lydia, “Lilu” = Libellula luctuosa
Surv: whether an individual survived: 1 = survived to emergence, 0 = did not survive to emergence
The file “IGPtrials2020.csv” contains data from the intraguild predation experiment.
Column headings are defined as:
PairID: unique identifier for a pair of larvae interacting within an experimental arena
Block: denotes which of two experimental blocks, A or B, during which a pairing took place
SppPair: species included in a pair-wise interaction: P = Pachydiplax longipennis, L = Libellula luctuosa
Category: experimental pairing treatment:
PaloDiff = two Pachydiplax individuals, who differ in size
PaloSame = two Pachydiplax individuals, who are the same size
LiluDiff = two Libellula individuals, who differ in size
LiluSame = two Libellula individuals, who are the same size
PaloLgr = a Pachydiplax and a Libellula, Pachydiplax is larger
LiluLgr = a Pachydiplax and a Libellula, Lilbellula is larger
PLSame = a Pachydiplax and a Libellula, they are the same size
Ind1ID: individual identifier for first member of the pair
Ind2ID: individual identified for the second member of the pair
1HeadWidth(mm): head width of individual 1 in mm
2HeadWidth(mm): head width of individual 2 in mm
Difference(mm): head width differential between individuals 1 and 2
Consumed: which individual (if any) was killed/eaten, I1 = individual 1, I2 = individual 2, none = neither were consumed (there was no IGP)
Notes: any notes about the interaction recorded at the time of the experiment