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Supplemental Information

S1

List of measured specimens (used for linear measurements and/or geometric morphometric analyses). Abbreviations: MNHN, Muséum national d’Histoire naturelle in Paris (collections Zoologie et Anatomie comparée, Mammifères et Oiseaux); BMNH, Natural History Museum in London; NBC, Naturalis Biodiversity Center in Leiden; ROM, Royal Ontario Museum in Toronto; LSU, Louisiana State University in Bâton-Rouge; AMNH, American Museum of Natural History in New York; USNM, National Museum of Natural History in Washington; IEPA, Instituto de Pesquisas Científicas e Tecnológicas do Estado do Amapá in Macapá; MHNG, Muséum d’Histoire naturelle in Geneva; KWATA, KWATA association; and PCDPC, Personal collection of Pierre Charles-Dominique.

DOI: 10.7287/peerj.preprints.2924v1/supp-1

S2

Regression of the common allometric shape vector (ASVc) on the logarithm of the centroid size for mandibles of five Dasypus species (A, R2=0.50; p<0.001) and D. novemcinctus (B, R2=0.34; p<0.001). Below, associate patterns of morphological transformation for mandibles with small (left) and large (right) centroid size. Symbols: same as in Figure 3 and 5.

DOI: 10.7287/peerj.preprints.2924v1/supp-2

S3

Regression of the common allometric shape vector (ASVc) on the logarithm of the centroid size for crania of five Dasypus species (A, R2=0.72; p<0.001) and D. novemcinctus (B, R2=0.48; p<0.001). Below, associate patterns of morphological transformation for crania with small (left) and large (right) centroid size. Symbols: same as in Figure 3 and 5.

DOI: 10.7287/peerj.preprints.2924v1/supp-3

S4

Principal component analyses with shape data corrected for allometry (PCres1 vs PCres 2) and associate patterns of morphological transformation for mandible of five Dasypus species. Symbols: blue squares, D. kappleri; black crosses, D. novemcinctus; green triangles, D. hybridus; green diamonds, D. septemcinctus; red circles, D. pilosus.

DOI: 10.7287/peerj.preprints.2924v1/supp-4

S5

Principal component analyses with shape data corrected for allometry (PCres1 vs PCres 2) and associate patterns of morphological transformation for crania of five Dasypus species. Symbols: blue squares, D. kappleri; black crosses, D. novemcinctus; green triangles, D. hybridus; green diamonds, D. septemcinctus; red circles, D. pilosus.

DOI: 10.7287/peerj.preprints.2924v1/supp-5

S6

(A) Principal component analysis (PC1 vs PC2) and associate patterns of morphological transformation for crania of five Dasypus species, including juveniles (indicated with smaller symbols) and excluding D. pilosus. (B) Regression of the first principal component on the logarithm of the centroid size (R2=0,63; p<0.001). Symbols: blue squares, D. kappleri; black crosses, D. novemcinctus; green triangles, D. hybridus; green diamonds, D. septemcinctus.

DOI: 10.7287/peerj.preprints.2924v1/supp-6

S7

Principal component analyses with shape data corrected for allometry (PCres1 vs PCres 2) and associate patterns of morphological transformation for mandibles of Dasypus specimens. Symbols: green diamonds, Bolivia; green triangle, Brazil (solid green triangles are for specimens from Amapa); green circles, Paraguay; green crosses, Peru; green squares, Uruguay; green bars, Venezuela; blue diamonds, Belize; blue “plus”, Guatemala; blue bars, Honduras; Blue squares, Mexico; blue crosses, Nicaragua; blue triangles, USA; blue circles, Costa Rica; black triangles, Colombia; black crosses, Ecuador; black stars, Panama; orange squares, French Guiana; orange crosses, Guyana; orange circles, Suriname.

DOI: 10.7287/peerj.preprints.2924v1/supp-7

S8

Principal component analyses with shape data corrected for allometry (PCres1 vs PCres 2) and associate patterns of morphological transformation for crania of Dasypus specimens. Symbols: green diamonds, Bolivia; green triangle, Brazil (solid green triangles are for specimens from Amapa); green circles, Paraguay; green crosses, Peru; green squares, Uruguay; green bars, Venezuela; blue diamonds, Belize; blue “plus”, Guatemala; blue bars, Honduras; Blue squares, Mexico; blue crosses, Nicaragua; blue triangles, USA; blue circles, Costa Rica; black triangles, Colombia; black crosses, Ecuador; orange squares, French Guiana; orange crosses, Guyana; orange circles, Suriname.

DOI: 10.7287/peerj.preprints.2924v1/supp-8

S9

Results of a posteriori classifications for the discriminant analysis performed on the cranial shape coordinates of Dasypus novemcinctus using countries as factors. Specimens with a star (*) were integrated into the analyses as ungrouped cases.

DOI: 10.7287/peerj.preprints.2924v1/supp-9

S10

Results of a posteriori classifications for the discriminant analysis performed on the cranial shape coordinates of Dasypus novemcinctus using the four subgroups (i.e., Northern, Central, Southern, and Guianan morphotypes) as factors. Specimens with a star (*) were integrated into the analyses as ungrouped cases.

DOI: 10.7287/peerj.preprints.2924v1/supp-10

S11

(A) Principal component analysis and linear discriminant analysis (B) performed on linear cranial measurements traditionally used in systematic studies. Same legend as figure 6.

DOI: 10.7287/peerj.preprints.2924v1/supp-11

S12

(A) Principal component analysis (PC1 vs PC2) and associate patterns of morphological transformation for crania of Dasypus kappleri. (B) Regression of the first principal component on the logarithm of the centroid size (R2=0.40; p<0.001). Symbols: green crosses, Peru; green bars, Venezuela; black triangles, Colombia; black crosses, Ecuador; orange squares, French Guiana; orange crosses, Guyana; orange circles, Suriname.

DOI: 10.7287/peerj.preprints.2924v1/supp-12

Dataset 1

Procrustes coordinates of the crania used in interspecific comparisons.

DOI: 10.7287/peerj.preprints.2924v1/supp-13

Dataset 2

Procrustes coordinates of the crania used in intraspecific comparisons (D. novemcinctus).

DOI: 10.7287/peerj.preprints.2924v1/supp-14

Dataset 3

Procrustes coordinates of the mandibles used in interspecific comparisons.

DOI: 10.7287/peerj.preprints.2924v1/supp-15

Dataset 4

Procrustes coordinates of the mandibles used in intraspecific comparisons (D. novemcinctus).

DOI: 10.7287/peerj.preprints.2924v1/supp-16

Additional Information

Competing Interests

The authors declare that they have no competing interests.

Author Contributions

Lionel Hautier conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Guillaume Billet conceived and designed the experiments, contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Benoit De Thoisy contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Frédéric Delsuc conceived and designed the experiments, contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Data Deposition

The following information was supplied regarding data availability:

The procrustes coordinates of all specimens used in our analyses are embedded in the supplemental data under the following names: Dataset 1, Dataset 2, Dataset 3, and Dataset 4.

All the analyses discussed in the paper can be performed using these procrustes coordinates.

Funding

This work has benefited from an "Investissements d’Avenir' grant managed by Agence Nationale de la Recherche, France (CEBA, ref. ANR-10-LABX-25-01). This research received support from the Synthesys Project (http://synthesys3.myspecies.info/), which is financed by the European Community Research Infrastructure Action under the FP7. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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