Search Results - "Isler, Morton L."

An Integrative Approach to Species-Level Systematics Reveals the Depth of Diversification in an Andean Thamnophilid, the Long-tailed Antbird by Morton L. Isler, Andrés M. Cuervo, Gustavo A. Bravo, Robb T. Brumfield

“…The geographic range of the Long-tailed Antbird (Drymophila caudata) extends from the Paria Mountains of Venezuela south through the Andes to northern Bolivia,…”
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Evolutionary and Ecological Processes Underlying Geographic Variation in Innate Bird Songs by Maldonado-Coelho, Marcos, Dos Santos, Sidnei S, Isler, Morton L, Svensson-Coelho, Maria, Sotelo-Muñoz, Manuelita, Miyaki, Cristina Y, Ricklefs, Robert E, Blake, John G

“…AbstractEcological and evolutionary processes underlying spatial variation in signals involved in mate recognition and reproductive isolation are crucial to…”
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Reevaluation of the taxonomic positions of members of the Epinecrophylla fjeldsaai (Aves: Passeriformes: Thamnophilidae) antwren complex including E. fjeldsaai based on vocalizations by Isler, Morton L., Whitney, Bret M.

“…The northwestern populations in the dead-leaf-foraging Epinecrophylla haematonota complex of thamnophilid antwrens includes E. pyrrhonota, E. fjeldsaai, and E…”
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Conservative plumage masks extraordinary phylogenetic diversity in the Grallaria rufula (Rufous Antpitta) complex of the humid Andes by Chesser, R. Terry, Isler, Morton L, Cuervo, Andrés M, Cadena, C. Daniel, Galen, Spencer C, Bergner, Laura M, Fleischer, Robert C, Bravo, Gustavo A, Lane, Daniel F, Hosner, Peter A

“…The Grallaria rufula complex is currently considered to consist of 2 species, G. rufula (Rufous Antpitta) and G. blakei (Chestnut Antpitta). However, it has…”
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Taxonomic revision of Myrmeciza (Aves: Passeriformes: Thamnophilidae) into 12 genera based on phylogenetic, morphological, behavioral, and ecological data by Isler, Morton L, Bravo, Gustavo A, Brumfield, Robb T

“…A comprehensive molecular phylogeny of the family Thamnophilidae indicated that the genus Myrmeciza (Gray) is not monophyletic. Species currently assigned to…”
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SPECIES LIMITS IN ANTBIRDS (THAMNOPHILIDAE): THE WARBLING ANTBIRD (HYPOCNEMIS CANTATOR) COMPLEX by Isler, Morton L, Isler, Phyllis R, Whitney, Bret M

“…Six populations of Warbling Antbird (Hypocnemis cantator) currently considered subspecies are more appropriately recognized as species, given the multiplicity…”
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Systematics of the obligate ant-following clade of antbirds (Aves: Passeriformes: Thamnophilidae) by Isler, Morton L., Bravo, Gustavo A., Brumfield, Robb T.

“…Results of a comprehensive molecular phylogeny of the family Thamnophilidae were consistent with earlier findings that almost all obligate army-ant-followers…”
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Inundicola Bravo, Isler, and Brumfield 2013 is a junior synonym of Akletos Dunajewski 1948 (Aves: Passeriformes: Thamnophilidae) by Isler, Morton L, Bravo, Gustavo A, Brumfield, Robb T

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Species Limits in Antbirds (Thamnophilidae): The Scale-Backed Antbird (Willisornis poecilinotus) Complex by Isler, Morton L., Whitney, Bret M.

“…The geographic range of the Scale-backed Antbird (Willisornis poecilinotus) encompasses Amazonia. Seven currently defined subspecies are distinguished from one…”
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CLINAL VARIATION IN VOCALIZATIONS OF AN ANTBIRD (THAMNOPHILIDAE) AND IMPLICATIONS FOR DEFINING SPECIES LIMITS by Isler, Morton L, Isler, Phyllis R, Brumfield, Robb T

“…In avian taxa in which vocalizations are considered innate, such as suboscine passerines, vocal characters are increasingly being used to help determine…”
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Use of Vocalizations to Establish Species Limits in Antbirds (Passeriformes: Thamnophilidae) by Isler, Morton L., Isler, Phyllis R., Whitney, Bret M.

“…We introduce an empirically derived methodology for the definition, measurement, and application of vocal characters in assessing species limits in the…”
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SPECIES LIMITS IN THE “SCHISTOCICHLA”COMPLEX OF PERCNOSTOLA ANTBIRDS (PASSERIFORMES: THAMNOPHILIDAE) by ISLER, MORTON L., ISLER, PHYLLIS R., WHITNEY, BRET M., ZIMMER, KEVIN J.

“…The species-group in the genus Percnostola that is sometimes placed in the genus “Schistocichla” is shown to consist of seven, mostly allopatric, species. All…”
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AVIAN SPECIATION IN THE PANTEPUI: THE CASE OF THE RORAIMAN ANTBIRD (PERCNOSTOLA [SCHISTOCICHLA] “LEUCOSTIGMA” SATURATA) by Braun, Michael J, Isler, Morton L, Isler, Phyllis R, Bates, John M, Robbins, Mark B

“…We document the first records for Guyana of Roraiman Antbird (Percnostola [Schistocichla] “leucostigma” saturata), an endemic of the tepui highlands of…”
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Species Limits in Antbirds (Passeriformes: Thamnophilidae): The Myrmotherula surinamensis Complex by Isler, Morton L., Isler, Phyllis R., Whitney, Bret M.

“…Current species-level taxonomy of Neotropical birds is in need of reassessment but lacks objective methodology and criteria for the ranking of allopatric…”
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Reevaluation of the taxonomic positions of members of the Epinecrophylla fieldsaai antwren complex including E. fieldsaai based on vocalizations/Re-evaluacion de las posiciones taxonomicas de Epinecrophylla fjeldsaai (Aves: Passeriformes: Thamnophilidae) y sus vecinos geograficos, baseada en vocalizaciones by Isler, Morton L, Whitney, Bret M

“…The northwestern populations in the dead-leaf-foraging Epinecrophylla haematonota complex of thamnophilid antwrens includes E. pyrrhonola, E. fjeldsaai, and E…”
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Reevaluation of the taxonomic positions of members of the Epinecrophylla fieldsaai y sus vecinos geograficos, baseada en vocalizaciones by Isler, Morton L, Whitney, Bret M

“…The northwestern populations in the dead-leaf-foraging Epinecrophylla haematonota complex of thamnophilid antwrens includes E. pyrrhonola, E. fjeldsaai, and E…”
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REDISCOVERY OF A CRYPTIC SPECIES AND DESCRIPTION OF A NEW SUBSPECIES IN THE MYRMECIZA HEMIMELAENA COMPLEX (THAMNOPHILIDAE) OF THE NEOTROPICS by Isler, Morton L, Alonso, José Alvarez, Isler, Phyllis R, Valqui, Thomas, Begazo, Alfredo, Whitney, Bret M

“…The recording in 1992 of an unknown antbird loudsong initiated a journey of discovery that led to the resolution of the conflict between John Zimmer (1932) and…”
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SPECIES LIMITS IN ANTBIRDS: THE THAMNOPHILUS PUNCTATUS COMPLEX CONTINUED by Isler, Morton L, Isler, Phyllis R, Whitney, Bret M, Walker, Barry

“…In a previous study (Isler et al. 1997) we examined species limits in the Thamnophilus punctatus complex of the Neotropics. We recommended that six taxa be…”
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In Memoriam: Betsy Trent Thomas, 1923-1998 by Isler, Morton L., Clemencia Rodner

“…Isler and Rodner reflect on the life and work of Betsy Trent Thomas in the field of ornithology. Thomas died on Jan 2, 1998…”
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SYSTEMATICS OF THE OBLIGATE ANT-FOLLOWING CLADE OF ANTBIRDS (AVES: PASSERIFORMES: THAMNOPHILIDAE by ISLER, MORTON L., BRAVO, GUSTAVO A., BRUMFIELD, ROBB T.

“…Results of a comprehensive molecular phylogeny of the family Thamnophilidae were consistent with earlier findings that almost all obligate army-ant-followers…”
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