Mapped locations of all analyzed singers displayed concurrently with glacial environment.

• Main Authors: W. Ross Silcock (11372246), Shari L. Schwartz (11372249), John U. Carlini (11372252), Stephen J. Dinsmore (3843145)
• Format: Still Image
• Language: unknown
• Published: 2021
• Subjects: Evolutionary Biology; Ecology; Science Policy; Environmental Sciences not elsewhere classified; Biological Sciences not elsewhere classified; western hemisphere family; user error rates; slightly less agreement; showed strong agreement; received detailed examination; random forest methods; producer error rates; previously published studies; pleistocene glacial boundaries; note sequence duration; minimal levels achieved; linear discriminant analysis; introductory note sequence; div >< p; parkesia motacilla </; louisiana waterthrush (<; individual variation resulted; song type variations; louisiana waterthrush; individual variation; parulidae </; song type; somewhat higher; results suggested; geographic extent; geographic distributions; findings confirmed; field work; elucidate whether; auditory assessment; permafrost
• Online Access: https://doi.org/10.1371/journal.pone.0256385.g008

Song type sympatry and former glacial conditions. Pre-Illinoian glacial maximum is represented with a light gray screen, Illinoian glacial maximum and high-altitude periglacial permafrost are represented by dark gray screens, the Last Glacial Maximum boundary is indicated by a black line and accompanying permafrost boundary by a white line, and a gray outline represents the Mississippi Embayment.