Rediscovery of a Cryptic Species and Description of a New Subspecies in the Myrmeciza Hemimelaena Complex (Thamnophilidae) of the Neotropics

Isler, Morton L.; Alonso, José Álvarez; Isler, Phyllis R.; Valqui, Thomas; Begazo, Alfredo J.; Whitney, Bret M.

doi:10.1642/0004-8038(2002)119[0362:roacsa]2.0.co;2

Cited by 20 publications

(19 citation statements)

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“…The sympatric occurrence of morphologically cryptic species with divergent songs not only in the M. hemimelaena complex (Isler et al ., 2002), but also in a number of other antbird species (Isler et al , 1998; Seddon, 2005), as well as in other avian families (Remsen, 2005), supports the idea that premating isolation may develop more rapidly between allopatric populations than postmating isolation (Tregenza, 2002). It also implicates a role for song divergence at an early stage of the speciation process.…”

Section: Discussionmentioning

confidence: 99%

“…M. hemimelaena ). Recently thought to comprise a single species with two races, the M. hemimelaena complex is now known to contain at least two cryptic species that occur sympatrically in north Peru , and four subspecies, all virtually identical in morphology and plumage but with divergent songs (Isler et al ., 2002). The focus of the present study is Myrmeciza hemimelaena pallens , a subspecies found from central Brazil to eastern Bolivia.…”

Section: Methodsmentioning

confidence: 99%

“…We studied this species in a natural forest island at the southern fringe of Amazonia, and at two sites in adjacent continuous forest (from which the island is thought to have been isolated for 1000–3000 years). All three populations belong to the same subspecies (Isler et al ., 2002). However, previous work using mtDNA showed the isolated population to be weakly differentiated from the ancestral population (Bates, 2000, 2002).…”

Section: Introductionmentioning

confidence: 99%

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Song divergence at the edge of Amazonia: an empirical test of the peripatric speciation model

Seddon

Tobias

2007

Biological Journal of the Linnean Society

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The evolutionary divergence of mating signals provides a powerful basis for animal speciation. Divergence in sympatry strengthens reproductive isolation, and divergence in allopatry can reduce or eliminate gene flow between populations on secondary contact. In birds, the first of these processes has empirical support, but the second remains largely hypothetical. This is perhaps because most studies have focused on oscine passerines, whose song learning ability may reduce the influence of vocalizations in reproductive isolation. In suboscine passerines, the role of learning in song development is thought to be minimal, and the resultant signals are relatively fixed. To investigate the role of song in the early stages of peripatric speciation, we therefore studied a suboscine, the chestnut-tailed antbird Myrmeciza hemimelaena . We recorded male songs in a natural forest island (isolated for < 3000 years) at the southern fringe of Amazonia, and at two nearby sites in continuous forest. A previous study found the isolated population to be weakly differentiated genetically from the ancestral population suggesting that peripatric speciation was underway. In support of this, although we detected minor but significant differences in song structure between each site, the most divergent songs were those of island birds. On simulating secondary contact using playback, we found that pairs from the forest island responded more strongly to island (i.e. local) songs than to those from both nonisland sites, and vice versa. This pattern was not observed in pairs from one non-island site, which responded with equal strength to local songs and songs from the other non-island site. Island females were more likely to approach and sing after hearing local male songs, rather than songs from the non-island populations, and vice versa; nonisland females did not appear to discriminate between local songs and those from the other non-island site. These findings are consistent with the idea that vocal divergence arising in small populations at the edge of Amazonia may result in partial reproductive isolation when contact is resumed. They also suggest the possibility that song divergence in peripatry may, after much longer time-frames, act as a barrier to gene flow in suboscines, perhaps because of an inability to learn or recognize divergent songs on secondary contact.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Song divergence at the edge of Amazonia: an empirical test of the peripatric speciation model

Seddon

Tobias

2007

Biological Journal of the Linnean Society

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“…Sin embargo, para los bosques sobre arena blanca, la evidencia disponible favorece la hipótesis de que Myrmeciza castanea, Percnostola arenarum, Polioptila sp. y Cnemotriccus sp., especies recientemente descubiertas, y que debido a su distribución restringida y alta especialización, podrían ser indicadoras de este tipo de bosque Isler et al, 2001;Isler et al, 2002).…”

Section: Discussionunclassified

COMPOSICIÓN DE ESPECIES DE AVES EN HÁBITATS DE LA ZONA RESERVADA Allpahuayo - Mishana Y COLINAS DE LA FORMACIÓN NAUTA, LORETO, PERÚ

Salazar-Zapata¹,

Mattos

Ferreyra

et al. 2006

Folia Amaz

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RESUMENEntre el 19 y 23 de noviembre del 2000, y en el marco del curso "Uso de inventarios biológicos para revelar patrones de distribución geográfica de especies en la selva baja amazónica", organizado por el proyecto Diversidad Biológica de la Amazonía Peruana, Perú -Finlandia (BIODAMAZ), con el apoyo del Instituto de Investigaciones de la Amazonía Peruana (IIAP) y la Universidad Nacional de la Amazonía Peruana (UNAP), fueron realizadas evaluaciones de la diversidad de especies de aves en la Zona Reservada Allpahuayo -Mishana (ZRAM), y en las colinas de la Formación Nauta, Loreto. Se evaluó la presencia de especies de aves en diferentes formaciones vegetales (varillal, colinas de la Formación Pebas en la ZRAM, incluyendo unas colinas de arena blanca, y un bosque de colina en la Formación Nauta), utilizando los métodos de transecto lineal y puntos de conteo. En los tres tipos de hábitats evaluados se registró 26 familias y 152 especies de aves, siendo el bosque de colinas de Formación Pebas el que presentó mayor número de especies, seguido del varillal y las colinas de la Formación Nauta. En la ZRAM se registró cuatro especies que han sido recientemente descubiertas y que podrían ser consideradas como especies indicadoras de bosques sobre arena blanca.Palabras clave: Amazonía peruana, aves, especies indicadoras, hábitats, puntos de conteo, transectos lineales, Zona Reservada Allpahuayo -Mishana. ABSTRACTBetween 19-23 November 2000, as part of the "Use of biological inventories to reveal geographic distribution patterns of lowland Amazonian species" course, organized by the Peru-Finland Biological Diversity of the Peruvian Amazon project (BIODAMAZ), with the support of the Peruvian Amazonian Research Institute (IIAP) and the Peruvian Amazonian National University (UNAP), surveys were conducted on bird species diversity in the Allpahuayo-Mishana Reserved Zone (ZRAM) and in the hilly areas of the Nauta geological formation, Loreto. The presence of birds was studied in different forest types (white-sand forest, hilly forest areas on the Pebas geological formation in the ZRAM, including some white sand hills, and one hilly forest area on the Nauta geological formation). The surveys were made using line transects and point counts. In the three types of habitats surveyed 26 families and 152 species of birds were registered. The highest number of species was found in the hilly forest area on the Pebas geological formation, followed by the white-sand forest and the hilly forest area on the Nauta geological formation. In the ZRAM four recently-discovered species were registered; these can be considered indicator species for white-sand forests.

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“…Using coloration measurements and song, Johnson and Jones [64] identified a new species of tody-tyrant in Peru, largely based on 100% discrimination of the new species from its sister species using differences in plumage coloration. Similarly, Isler et al [65] utilized information from a colorimeter, vocalizations, and morphometrics to identify a new cryptic species and an additional subspecies within the widespread Amazonian antbird, the Chestnut-tailed Antbird (Myrmeciza hemimelaena). Another example is in the long-running debate on whether McKay's Buntings (Plectrophenax hyperboreus) is a distinct species, or a subspecies, of the Snow Bunting (Plectrophenax nivalis).…”

Section: Avian Plumage Coloration For Taxo-nomic and Ecological Studiesmentioning

confidence: 99%

The Utility of Plumage Coloration for Taxonomic and Ecological Studies

Paxton

2009

TOOENIJ

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Plumage coloration in birds serve multiple purposes, including species recognition, sexual selection cues, and camouflage. Differences in plumage coloration can be used to infer evolutionary relationships, identify distinct taxonomic units, and characterize geographic variation. With the advent of electronic devices to quantify plumage coloration quickly and reliably, taxonomic or geographic differences can be exploited for ecological studies. To evaluate the utility of plumage coloration for taxonomic and ecological studies, I review the basis of plumage coloration and sources of variation. I then review how different studies have used plumage coloration to better understand taxonomic relationships and provide insights into ecological problems.

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Rediscovery of a Cryptic Species and Description of a New Subspecies in the Myrmeciza Hemimelaena Complex (Thamnophilidae) of the Neotropics

Cited by 20 publications

References 16 publications

Song divergence at the edge of Amazonia: an empirical test of the peripatric speciation model

Song divergence at the edge of Amazonia: an empirical test of the peripatric speciation model

COMPOSICIÓN DE ESPECIES DE AVES EN HÁBITATS DE LA ZONA RESERVADA Allpahuayo - Mishana Y COLINAS DE LA FORMACIÓN NAUTA, LORETO, PERÚ

The Utility of Plumage Coloration for Taxonomic and Ecological Studies

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