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In Southwest Brazilian Amazonia with Breeding Season in Brazil

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In Southwest Brazilian Amazonia with Breeding Season in Brazil Revista peruana de biología 28(3): e20475 (Agosto 2021) doi: http://dx.doi.org/10.15381/rpb.v28i3.20475 Nota científica ISSN-L 1561-0837; eISSN: 1727-9933 Universidad Nacional Mayor de San Marcos Breeding biology and biometrics of Myiozetetes c. cayanensis (Aves: Tyrannidae) in southwest Brazilian Amazonia with breeding season in Brazil Biología reproductiva y biometría delMyiozetetes c. cayanensis (Aves: Tyrannidae) en el suroeste de la Amazonia brasileña y el período reproductivo en Brasil Jônatas Lima * Resumen https://orcid.org/0000-0002-9663-5208 Nuestro estudio proporciona información sobre la reproducción y la biometría del [email protected] bienteveo alicastaño Myiozetetes cayanensis en el suroeste de la Amazonia brasi- leña. M. cayanensis se distribuye desde América Central hasta el norte de América Edson Guilherme del Sur. Realizamos observaciones sobre la reproducción y captura de esta especie https://orcid.org/0000-0001-8322-1770 [email protected] en un fragmento de bosque de tierra firme en el estado de Acre, entre 1999 y 2020 y evaluamos la época de reproducción en Brasil mediante datos de ciencia *Corresponding author ciudadana. Monitoreamos nueve nidos entre 2012 y 2020, construidos a una altura Laboratório de Ornitologia, Centro de Ciências Bio- promedio de 1.8 m sobre el suelo. El tamaño de la puesta fue de dos, tres o cuatro lógicas e da Natureza, Universidade Federal do Acre, huevos, incubados durante 15 días. Monitoreamos el desarrollo de seis polluelos: Rio Branco, AC, Brazil. el peso mínimo al nacer fue de 2 g y los polluelos con una masa media de ca. 25.5 Citación g. La tasa de crecimiento constante (K) de los polluelos fue de 0.18 con una asín- Lima J, Guilherme E. 2021. Breeding biology and bio- tota de crecimiento de 22.8 g. La tasa de supervivencia diaria fue del 90% y 100% metrics of Myiozetetes c. cayanensis (Aves: durante los períodos de incubación y cría, respectivamente. El éxito de Mayfield Tyrannidae) in southwest Brazilian Amazo- en los períodos de incubación y cría fue de 20 y 100%, respectivamente. El éxito nia with breeding season in Brazil. Revista aparente de anidación en los períodos de incubación y polluelo fue de 46 y 100%, peruana de biología 28(3): e20475 (Agosto respectivamente. Registramos una longevidad mínima de 2 años, nueve meses y 2021). doi: http://dx.doi.org/10.15381/rpb. 26 días. La subespecie M. c. cayanensis comienzan a anidar principalmente entre v28i3.20475 la estación seca y lluviosa en Brasil, superponiéndose con el período de muda en el suroeste de la Amazonia. Presentado: 14/09/2020 Aceptado: 26/04/2021 Abstract Publicado online: 30/08/2021 Our study provides information on the breeding and biometrics of Rusty-Margined Editor: Leonardo Romero Flycatcher Myiozetetes cayanensis in southwest Brazilian Amazonia. M. cayanensis is distributed from Central America until north of South America. We made observa- tions on reproduction and captures of this species in terraa firme forest fragment in the state of Acre, between 1999 and 2020 and we evaluated the breeding season in Brazil through citizen science data. We monitored nine nests between 2012 and 2020, built at a mean height of 1.8 m above ground. Clutch size was two, three or four eggs, incubated for 15 days. We monitored the development of six nestlings: minimum hatch weight was 2 g and young fledged with a mean mass of ca. 25.5 g. The constant growth rate (K) of nestlings was 0.18 with a growth asymptote of 22.8 g. Daily survival rate was 90% and 100% during the incubation and nestling periods, respectively. The Mayfield success in the incubation and nestling periods was 20 and 100%, respectively. Apparent nesting success in the incubation and nestling periods was 46 and 100%, respectively. We recorded a minimum longevity of 2 years, nine months and 26 days. The subspecies M. c. cayanensis start to nest mainly between the dry and rainy season in Brazil, overlapping with the molt period in southwest Amazonia. Palabras clave: Myiozetetes cayanensis; bienteveo alicastaño; biología reproductiva; tamaño de nidada; polluelos; morfometría de aves; datos de ciencia ciudadana. Keywords: Myiozetetes cayanensis; Rusty-margined Flycatcher; breeding biology; Clutch size; nestlings; bird morphometrics; citizen-science data. ________________________________________________________________ Journal home page: http://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/index © Los autores. Este artículo es publicado por la Revista Peruana de Biología de la Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos. Este es un artículo de acceso abierto, distribuido bajo los términos de la Licencia Creative Commons Atribución 4.0 Internacional. (https://creativecommons.org/licenses/by/4.0/deed.es) que permite Compartir (copiar y redistribuir el material en cualquier medio o formato), Adaptar (remezclar, transformar y construir a partir del material) para cualquier propósito, incluso comercialmente. 001 Lima & Guilherme Introduction callipers accurate to 0.01 mm (2015–2020). We weighed Contributions to the conservation of bird species are eggs and nestlings using a Pesola® scale with a capaci- possible with studies of the reproductive biology which ty of 100 g and accurate to the nearest 1 g (2012–2014) reveal important data that can aid understanding of eco- or a digital scale accurate to 0.05 g (2015–2020). We co- logical relationships (Martin 2004) between biotic and llected nests after they became inactive and deposited abiotic factors. In the Neotropical region ornithological them in the collection of the UFAC ornithology labora- studies have increased considerably in recent years (Xiao tory. Nests were described according to the standardized et al. 2017), but the basic aspects of the biology of many scheme proposed by Simon and Pacheco (2005). bird species remain limited. Among them are reproduc- We trapped and ringed Rusty-Margined Flycatcher in tive aspects, mainly knowledge about nests and eggs, the years 1999–2002 (1624.8 net / hours), 2004–2006 mainly Flycatchers (Heming et al. 2013). The availability (1367.3 net / hours) and 2009–2019 (57948.2 net / hours). We used 12.0 × 2.5 m mist-nets with 36 mm (Sick 1997) and combination with choice of nest site and mesh and banded individuals with numbered metal timeof food invested resources in parental influences care the are start crucial of a breeding for the survival season rings supplied by CEMAVE (Centro Nacional de Pesqui- of nestlings (Saether 1985, Mezquida & Marone 2001). sa e Conservação de Aves Silvestres), under the scope of Rusty-Margined Flycatcher ranges from Costa Rica project 1099, coordinated by EG (senior bird bander, reg. and Panama to northern South America (Mobley & no. 324654). We collected morphometric data (wing, tar- Kirwan 2020). This species is usually one of the most sus, bill, head, tail, total length and cloacal temperature) only from 2002 following the protocol outlined by Proc- occurs (Sick 1997). Four subspecies have been descri- tor and Lynch (1993). common flycatchers in the regionsMyiozetetes of Brazil incayanensis which it In general, we used a Pesola® scale with a capaci- cayanensis and Myiozetetes c. erythropterus (Piacentini ty of 100 g (1 g precision) to weigh birds and nestlings etbed, al. two 2015). of which Myiozetetes occur inc. cayanensisBrazil: is relatively widely prior to 2014, and a digital scale (0.05 g precision) du- M. c. erythropte- ring 2015–2020. We used a millimetre ruler to measure rus wing, tail and total length, and analogue callipers (0.05 Kirwandistributed 2020). in Brazil Few data in comparison are available with on the reproducti- mm precision) until 2014 and digital callipers (0.01 mm ve biology, which isof restrictedM. cayanensis to southeastern (Carvalho 1960, Brazil Oniki (Mobley & Wi &- precision) in 2015–2020 to measure bill and tarsus. For llis 1983, Dyrcz 1991, Pascoal et al. 2016), and most of each biometric, data were taken from each adult and the studies have been conducted in countries other than ringing, we distinguished adults and juveniles based on obtained detailed data on the reproductive biology and thejuvenile presence individual of juvenile only the plumage first it (seewas Sibleytrapped. 2010, During Jo- biometricsBrazil (Mobley of M. & Kirwanc. cayanensis 2020). from In the a lowlandpresent study,terra firwe- hnson et al. 2011). We examined each trapped individual me to determine molt in the remiges and rectrices (Sibley 2010) and presence or absence of a brood patch (Re- forest in southwest Brazilian Amazonia, including dfern 2010), and we included only adults in the analysis. its breeding season in Brazil, which provide important We measured cloacal temperature with a digital thermo- insightsMaterial into the and life historymethods patterns of the flycatchers. meter (32.0–42.9 °C, accurate to 0.1 °C) and calculated We conducted this study at the Zoobotanical Park of - banded to their last recapture (Scholer et al. 2018). minimum longevity from the first day an individual was We searched for records of active Myiozetetes caya- (09°57’08.9”S,the Federal University 67°52’22.5”W) of Acre (UFAC),is a forest in Riofragment Branco, with ca nensis nests, irrespective of subspecies, including those pital of the Brazilian state of Acre. The Zoobotanical Park an area of ca.100 ha surrounded by an urban matrix. It is - considered to be one of the largest urban forest fragments - - with nestlings, up to June 5th 2020, on the Brazilian Wi tation is composed of successional forests of varying ages thekiaves content site (Wikiaves of each photograph 2020). We (nests verified with the eggs date, or nestloca- of the Rio Branco (Meneses-Filho et al. 1995). The vege dominated by the cycle of mass mortality and succession lings).tion (Brazilian For the purposesstate and ofmunicipality), the study, we the considered author, and all of the bamboo Guadua weberbaueri, and dense unders- the photographs from all localities, except those of a gi- tory with many vine tangles (Meneses-Filho et al.
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