Data from: Which ecological factors influence the level of intraspecific diversity within post-glacial fishes? A case study using Coregonus and Salvelinus
Data files
Apr 22, 2025 version files 279.44 KB
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lake_summary.csv
9.71 KB
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morphs.csv
232.30 KB
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paper_references.csv
31.89 KB
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README.md
5.55 KB
Abstract
While it is likely that ecological context is important, the factors that facilitate and maintain variable levels of intraspecific diversity in Salmonidae fishes across environments remain unclear. Using a meta-analysis of sympatric ecotype assemblages from two salmonid genera – Salvelinus and Coregonus – we evaluated the importance of ecological factors determining the number of sympatric ecotypes (i.e., two to seven) and the level of trait divergence between them. We found that ecotype diversity increased with lake depth and surface area in both Coregonus and Salvelinus. Further, diversity in Coregonus increased with latitude, while the number of ecotypes in Salvelinus assemblages was linked to climatic seasonality. In comparing the two genera we found elevated divergence in traits related to ontogeny (i.e., age and body shape) in Salvelinus and gill raker count in Coregonus. Trait divergence in life history traits (i.e., age and body length) in Salvelinus increased with seasonality, whereas contrasting relationships of latitude to body length and gill rakers were found in Coregonus. We also found similar levels of divergence in trait variance in the two genera, suggesting that among-ecotype differences in phenotypic variability are not more common in one genus than the other. Overall, ecosystem characteristics, including lake location, climate, and morphometry, are clearly important for where these genera have diversified, but the variables that are most closely associated with intraspecific diversity differ between the two genera studied, and depend on whether diversity is quantified using number of ecotypes or trait divergence.
lake_summary.csv
This dataset contains a summary of geographical variables recorded for the lakes included in the meta-analysis. 'NA' values indicate missing data.
- Lake = name of lake where the assemblage occurs
- Genus = Salvelinus or Coregonus - genus the ecotypes belong to
- Lacustrine_morphs = number of ecotypes that reside in the lake
- Country = political entity where the lake is located
- Lat = latitude, in decimal degrees
- Lon = longitude, in decimal degrees
- Depth_max = maximum lake depth, in metres
- Area = lake surface area, in metres squared
- Other_source = source for lake information, if not the paper data was extracted from
morphs.csv
This dataset contains the raw trait data (means, errors, and sample sizes) for ecotypes included in the meta-analysis. 'NA' values indicate missing data.
- Paper_ID = Identifer uniquely associated with the paper data were extracted from
- Lake = name of the lake were the ecotype occurs
- Species = species or species complex, if described
- Morph_ID = identifier associated with the ecotype
- Morph_zone = descriptor of the ecotype's habitat niche
- Morph_diet = descriptor of the ecotype's diet niche
- GRc_mean = mean gill raker count, in number of gill rakers
- GRc_n = sample size for gill raker count
- GRc_e = error for gill raker count
- GRc_e_type = type of error measure (SD, SE, etc) for gill raker count
- length_mean = mean body length
- length_n = sample size for body length
- length_e = error for body length
- length_e_type = type of error for body length
- length_units = units of measurement for body length (cm, mm, or log_mm if on a log scale)
- length_type = type of length measurement (fork, standard, or total)
- age = mean age, in years
- age_n = sample size for age
- age_e = error for age
- age_e_type = type of error measure for age
- lengthAsymp_mean = asymptotic length, in mm
- lengthAsymp_n = sample size for asymptotic length
- lengthAsymp_e = error for asymptotic length
- lengthAsymp_e_type = type of error measure for asymptotic length
- lengthAsymp_type = type of length measurement (fork, standard, or total)
- N15_mean = mean value for isotope Nitrogen 15
- N15_n = sample size for Nitrogen 15
- N15_e = error for Nitrogen 15
- N15_e_type = type of error measure for Nitrogen 15
- C13_mean = mean value for isotope Carbon 13
- C13_n = sample size for Carbon 13
- C13_e = error for Carbon 13
- C13_e_type = type of error measure for Carbon 13
- UpperJaw_mean = mean upper jaw length, in mm
- UpperJaw_n = sample size for upper jaw length
- UpperJaw_e = error for upper jaw length
- UpperJaw_e_type = type of error measure for upper jaw length
- LowerJaw_mean = mean lower jaw length, in mm
- LowerJaw_n = sample size for lower jaw length
- LowerJaw_e = error for lower jaw length
- LowerJaw_e_type = type of error measure for lower jaw length
- Gape_mean = mean gape width, in mm
- Gape_n = sample size for gape width
- Gape_e = error for gape width
- Gape_e_type = type of error measure for gape width
- Eye_mean = mean eye diameter, in mm
- Eye_n = sample size for eye diameter
- Eye_e = error for eye diameter
- Eye_e_type = type of error measure for eye diameter
- HeadLength_mean = mean head length, in mm
- HeadLength_n = sample size for head length
- HeadLength_e = error for head length
- HeadLength_e_type = type of error measure for head length
- Snout_mean = mean snout length, in mm
- Snout_n = sample size for snout length
- Snout_e = error for snout length
- Snout_e_type = type of error measure for snout length
- PectoralFin_mean = mean pectoral fin length, in mm
- PectoralFin_n = sample size for pectoral fin length
- PectoralFin_e = error for pectoral fin length
- PectoralFin_e_type = type of error measure for pectoral fin length
- DorsalFin_mean = mean dorsal fin length, in mm
- DorsalFin_n = sample size for dorsal fin length
- DorsalFin_e = error for dorsal fin length
- DorsalFin_e_type = type of error measure for dorsal fin length
- CaudalFin_mean = mean caudal fin length, in mm
- CaudalFin_n = sample size for caudal fin length
- CaudalFin_e = error for caudal fin length
- CaudalFin_e_type = type of error measure for caudal fin length
- AnalFin_mean = mean anal fin length, in mm
- AnalFin_n = sample size for anal fin length
- AnalFin_e = error for anal fin length
- AnalFin_e_type = type of error measure for anal fin length
- PelvicFin_mean = mean pelvic fin length, in mm
- PelvicFin_n = sample size for pelvic fin length
- PelvicFin_e = error for pelvic fin length
- PelvicFin_e_type = type of error measure for pelvic fin length
- Depth = mean depth of capture, in m
- Depth_n = sample size for depth of capture
- Depth_e = error for depth of capture
- Depth_e_type = type of error measure for depth of capture
- BodyPC1_mean = mean value on the first principal component estimated from body shape
- BodyPC1_n = sample size for body shape PC1
- BodyPC1_e = error for body shape PC1
- BodyPC1_e_type = type of error measure for body shape PC1
- HeadPC1_mean = mean value on the first principal component estimated from head shape
- HeadPC1_n = sample size for head shape PC1
- HeadPC1_e = error for head shape PC1
- HeadPC1_e_type = type of error measure for head shape PC1
Paper references
This sheet includes a full list of the papers that were used in this meta-analysis
- Paper_ID = Identifer uniquely associated with the paper data were extracted from
- Full_Paper_ID = Paper_ID with the paper's first author and year attached
- Reference = full formatted reference for the paper