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9 results for “Hyla andersonii”
Data from: Geographic variation in the Pine Barrens Treefrog (Hyla andersonii): concordance of genetic, morphometric, and acoustic signal data
Delimiting species is important to every subfield in biology. Templeton's cohesion species concept uses genetic and ecological exchangeability to identify sets of populations that ought to be considered as the same species, and the lack of exchangeability helps determine which populations can be grouped as evolutionarily significant units (ESU) in conservation science. However, previous work assessing genetic and ecological interchangeability among populations has been limited in scope. Here, we provide a method for assessing exchangeability that incorporates multiple, independent lines of multivariate evidence in genetic, behavioural and morphological data. We use this approach to assess exchangeability across three disjunct groups of populations of the Pine Barrens Treefrog (Hyla andersonii) from the eastern United States. This species is considered threatened by each state in which it occurs and conservation management of this taxon requires a clearer understanding of how populations in these three regions may differ from one another. We find a strikingly concordant pattern in which the first axis of variation for each of the three types of data distinguishes populations along a latitudinal gradient and the second axis distinguishes the set of populations occurring in the Carolinas from those occurring in the New Jersey and Florida/Alabama regions. We know of no comparable data set that displays such concordance among different types of data across so large a geographic range. The overlap in trait values (i.e. exchangeability) between neighbouring regions, however, is substantial in all three types of data, which supports continued consideration of this taxon as a single species.
FIG. 2 in Predators Induce Morphological Changes in Tadpoles of Hyla andersonii
FIG. 2. Representative photos of tadpoles of H. andersonii reared without predators (top) and with predators (bottom) and their corresponding ImageJ pixel color histograms. Lower values indicate darker pixels, and higher values indicate lighter pixels in the image. The y-axis of the histograms indicates the frequency of pixels for each darkness score.
FIG. 6 in Predators Induce Morphological Changes in Tadpoles of Hyla andersonii
FIG. 6. Principal component analysis of the tail morphological traits total tadpole length (TTL), tail color (col1), and standardized body length (sBL), standardized tail muscle depth (sTMD), standardized tail length (sTL), and standardized tail fin depth (sTFD) sampled on Day 32.
FIG. 1 in Predators Induce Morphological Changes in Tadpoles of Hyla andersonii
FIG. 1. Photograph of H. andersonii depicting the locations of tail measurements. BL ¼ Body length, TL ¼ tail length, TMD ¼ tail muscle depth, TFD ¼ tail fin depth. Body length was measured from tadpole snout to start of tail muscle. Tail length was measured along the tail muscle from start of tail muscle to tail tip. Tail muscle depth was measured at the base of the tail, and tail fin depth was measured from fin top to bottom at the deepest location along tail length. Total tadpole length (TTL) was determined by adding TL to BL.
FIG. 3 in Predators Induce Morphological Changes in Tadpoles of Hyla andersonii
FIG. 3. Tadpole tail color (mean gray value) was significantly lower (¼darker tails) in predator treatments compared to non-predator controls (LMM: v2 ¼ 16.2, df ¼ 1, P 0.001). Sampling date had no, effect on tail color (v2 ¼ 2.34, df ¼ 2, P ¼ 0.31).
Data from: Signatures of north-eastern expansion and multiple refugia: Genomic phylogeography of the Pine Barrens Treefrog, Hyla andersonii (Anura: Hylidae)
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Data from: Geographic variation in the Pine Barrens Treefrog (Hyla andersonii): concordance of genetic, morphometric, and acoustic signal data
Open the record for dataset details and reuse information.
FIG. 4 in Predators Induce Morphological Changes in Tadpoles of Hyla andersonii
FIG. 4. Box and whisker plots showing range of tadpole tail mean gray values (a measure of tail darkness). Lower mean gray values indicate darker tail coloration. (A) Day 32 (þpredator treatment mean gray value6SD ¼ 92612.82; –predator control ¼ 103.8868.54), (B) Day 39 (þpredator ¼ 93.11615.22; –predator ¼ 106.54612.95), and (C) Day 46 (þpredator ¼ 88.97614.46; –predator ¼ 100.68612.63). Individuals were pooled across ponds within treatments on each sampling date. Variance was significantly greater in predator treatments compared to non-predator controls (LMM: v2 ¼ 5.7, df ¼ 1, P ¼ 0.017).
FIG. 5 in Predators Induce Morphological Changes in Tadpoles of Hyla andersonii
FIG. 5. Comparison of relative tadpole size across sampling dates and predator treatments. All measurements were standardized against total tadpole length to account for size differences among individual tadpoles. *P, 0.05 between treatments.
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