Missing for the last twenty years: the case of the southernmost populations of the Tropical Mockingbird Mimus gilvus (Passeriformes: Mimidae)

Zanon, Mariana Santos; Vale, Mariana M.; Alves, Maria Alice S.

doi:10.1590/s1984-46702015000100001

Cited by 4 publications

(4 citation statements)

References 12 publications

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“…The mean duration of the breeding season was 26.1 ± 2.6 weeks ( Table 1). The peaks of breeding activity (most active nests) were in December 2010, 2012and 2014/2015, and in January 2011/2012/2014.…”

Section: Breeding Season and Nest Buildingmentioning

confidence: 99%

“…However, the occurrence of the subspecies M. gilvus antelius overlaps with the most threatened Restinga area in Brazil (Rocha et al 2007). The populations of the Tropical Mockingbird have been disappearing in the southern limit of its distribution in recent decades (Teixeira and Nacinovic 1992, Araujo and Maciel 1998, Argel-de-Oliveira and Pacheco 1998, confirming its status as an Endangered species (Zanon et al 2015). If the subspecies M. gilvus antelius is validated as a distinct species, when it is described it will already be a threatened species (Zanon et al 2015).…”

Section: Introductionmentioning

confidence: 99%

“…The subspecies M. gilvus antelius occurs on the Brazilian coast from the northern portion of the state of Pará to south of Rio de Janeiro. It is considered endemic to the Atlantic Forest , and some authors have advocated that this subspecies should be considered a distinct species (Cody 2005, Zanon et al 2015. Due to its close association with coastal environments, the Tropical Mockingbird was once the most common bird in the Restinga (Sick 1997).…”

Section: Introductionmentioning

confidence: 99%

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Multiple nesting attempts and long breeding seasons of Mimus gilvus (Aves: Mimidae) in southeastern Brazil

Morais¹,

Araújo²,

Silva³

et al. 2019

Zoologia

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This study describes aspects of the life history of the Tropical Mockingbird Mimusgilvus (Vieillot, 1808), including the breeding period, clutch size, nestlings and a list of plants used for nesting. Nests were monitored in an area of Restinga (sand-coastal plain) habitat in a protected area in southeastern Brazil. The data from 181 nests during five breeding seasons (2010-2014) showed that the Tropical Mockingbird has a long breeding season (26.1 ± 2.6 weeks) with up to two peaks of active nests from August to March. The breeding pairs made up to four nesting attempts in the same breeding season. The mean (± SD) clutch size was 2.4 ± 0.6 eggs (n = 169). The mean (± SD) incubation period was 14 ± 0.6 days, and the nestling remained in the nest for 14.5 ± 2.2 days. The nests were built on thirty plant species, and Protiumicicariba (DC.) Marchand. was the plant species most commonly used for nesting. The breeding parameters of the Tropical Mockingbird are similar to those of other Mimidae species. The knowledge gained from this study makes the Tropical Mockingbird a good choice for future studies, particularly for testing ecological and evolutionary hypotheses regarding life history attributes, habitat selection and parental investment.

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Section: Breeding Season and Nest Buildingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Multiple nesting attempts and long breeding seasons of Mimus gilvus (Aves: Mimidae) in southeastern Brazil

Morais¹,

Araújo²,

Silva³

et al. 2019

Zoologia

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“…In the 1990s, the subspecies M. g. gracilis and M. g. magnirostris were first recorded in Nicaragua and El Salvador (Komar 2001, Wiedenfeld et al 2001, Cody 2005. Currently, M. gilvus is distributed in southern Mexico, most Central America, western Colombia and northern Ecuador, across northern Venezuela, the Lesser Antilles, Trinidad, Tobago, the Guianas, and northern Brazil, following the Atlantic coast south to Rio de Janeiro (Brewer & MacKay 2001, Zanon et al 2015.…”

Section: Introductionmentioning

confidence: 99%

Rapid Colonization of Ecuador by the Tropical Mockingbird (Mimus Gilvus)

2016

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Some species benefit from anthropogenic ecosystem disturbance expanding their distribution ranges rapidly into altered areas. Given the current availability of anthropogenic landscapes in the Neotropic, it is important to document cases of species’ range extensions to better understand the factors that influence their distribution. In this manuscript, we document the colonization process of the Tropical Mockingbird (Mimus gilvus) in Ecuador since its arrival from Colombia in 1996, and analyze its range expansion to predict its future distribution based on a potential distribution climate model. Data collected indicate that the species has expanded 300 km southwards since first recorded in Ecuador. Given the availability of suitable climate conditions and the availability of disturbed land, it is expected that M. gilvus will continue its current range expansion southwards, occupying most Ecuador, mainly along inter‐Andean valleys.RESUMEN ∙ La rápida colonización del Sinsonte Tropical (Mimus gilvus) en Ecuador Algunas especies se benefician del disturbio antropogénico sobre los ecosistemas, expandiendo rápidamente sus rangos de distribución hacia áreas alteradas. Dada la disponibilidad actual de paisajes antropogénicos en el Neotrópico, es importante documentar los casos de expansión de rango de las especies para comprender mejor los factores que influyen en la distribución de estas. Aquí documentamos el proceso de colonización del Sinsonte Tropical (Mimus gilvus) en Ecuador, desde su arribo de Colombia en 1996, y analizamos su expansión de rango para predecir su futura distribución en base a un modelo climático de su rango potencial. Los datos obtenidos indicaron que la especie se ha expandido 300 km hacia el sur desde su primer reporte en Ecuador. Dada la disponibilidad de condiciones climáticas favorables y de áreas disturbadas, se espera que M. gilvus continúe su actual expansión hacia el sur, ocupando la mayor parte del Ecuador, principalmente los valles interandinos.

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