Influence of the nycthemeral cycle on the roosting behaviour of the Orange-winged Amazon

Moura, Leiliany Negrão de; Silva, Maria Luisa da; Vielliard, Jacques

doi:10.1590/s0001-37652012005000029

Cited by 3 publications

(2 citation statements)

References 11 publications

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“…Birds exhibit adaptive physiological responses when faced with climate change (Noakes et al, 2016). Environmental temperature and humidity were correlated with duration of daily activity in Amazona amazonica and herons (Hirundo fluvicola and Ardea insignis), where the duration of daily activity was positively correlated with morning and evening temperatures and negatively correlated with sunrise time and morning and evening humidity (Khandu et al, 2022;Moura et al, 2012;Singh et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

Reintroduction and monitoring of the bird Amazona aestiva (Psittaciformes: Psittacidae) in Brazil

et al. 2023

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Introduction: Reintroduction is a procedure used to reestablish wild animal populations. Objective: The present study aimed to evaluate the success of reintroducing Amazona aestiva and investigate whether abiotic factors (temperature, humidily, and luminosity) interfere with the search for food supplementation in feeders installed in the release area. Methods: Pre-release evaluations were initiated with 59 Amazonas spp. Tests were run to stool parasitological tests, leukocytes, flight capacity, and level of animal-human interaction. In all, 33 animals were selected and sent to the release area, which is an ecotone between the Atlantic Forest and the Caatinga biomes. After release, visits to the feeders and survival in the area were monitored for a year. Abiotic factors were also recorded in these periods. Results: The stool parasitological tests revealed the presence of Heterakis spp. and Eimeira spp. The leukocyte parameters were within the reference values for the species. At least 50% of the released animals survived after one year, with recordings of reproductive events. Abiotic factors did not interfere with the animal visits to the feeder. However, the variable humidity best explained visits in the morning, while the variables temperature and luminosity most influenced visits in the afternoon. Conclusion: The reintroduction observed and presented here is on the threshold of the classification as successful. The installed feeders and artificial nests caused the animals to stay in the area for monitoring. Abiotic factors may influence daily behavioral decision-making related to the use of supplementary feeding in reintroduced parrots.

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Section: Discussionmentioning

confidence: 99%

Reintroduction and monitoring of the bird Amazona aestiva (Psittaciformes: Psittacidae) in Brazil

et al. 2023

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“…La ecología urbana de las aves se ha vuelto un punto de interés a nivel regional, ya que se propicia una oportunidad para estudiar la conducta de las aves, incluyendo la adaptación, resiliencia, abundancia y sobrevivencia. Uno de los aspectos clave en el estudio de los loros, es conocer el comportamiento diario de percha, incluyendo los factores que influyen en la hora de llegada a los dormideros que son poco conocidos (De Moura et al, 2012).…”

Section: Introductionunclassified

Movimientos vespertinos de la lora nuca amarilla (Amazona auropalliata) en la ciudad de San Salvador, El Salvador

Herrera

2023

revminerva

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La lora nuca amarilla, Amazona auropalliata ha logrado establecer poblaciones silvestres adaptándose a entornos urbanos. En esta nota se presentan los resultados del registro de individuos en sus rutas a los dormitorios comunales. Se hicieron observaciones entre abril 2020 a marzo 2021, desde cuatro puntos de avistamiento en el noreste de la ciudad de San Salvador, con un promedio de 35.76 min, para un total de 170 conteos y 100.06 horas de observación. Los resultados arrojaron un promedio de 2.42 individuos en 125 observaciones exitosas, con una ocurrencia entre las 17:26 a las 18:29 horas, existiendo más registros en el periodo de abril a julio, cuando la especie no se está reproduciendo, hay más juveniles volando y las condiciones climáticas son favorables para la observación. El análisis de correlación de Spearman entre la puesta del sol y la hora de paso de los loros (R2 = 0.26) evidencia que los movimientos vespertinos no están influenciados por el fenómeno.

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Conservation status of the recently described Ecuadorian Amazon parrot Amazona lilacina

Biddle

Ponce

Cun³

et al. 2020

Bird Conservation International

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Summary Amazona lilacina is a threatened species endemic to Ecuador, existing across a patchwork of mangroves, lowland coastal forests, agricultural and community owned land. The species was described in 2014 and listed as ‘Endangered’ on the IUCN Red List, however, full assessment of the population was lacking. Using a combination of field observations, roost surveys and community questionnaires, conducted over the last 20 years, we provide up-to-date information on the species’ Extent of Occurrence, estimate its global population size, and evaluate its level of threat. Our results suggest the species occurs across an area of 19,890 km2 in three distinct geographically isolated subpopulations. Roost surveys across the range estimate the minimum remaining population at 741–1,090 individuals and we present evidence to suggest a 60% decline over the past 19 years in one part of the species’ range. We conducted community questionnaires with 427 people from 52 communities. The presence of pet parrots was reported in 37 communities, including 17 communities which reported pet A. lilacina. From this we predict that over half of all communities within our study area keep parrots as pets and at least 96 communities keep A. lilacina. Our findings justify an IUCN Red Listing of at least ‘Endangered’ for this species and highlight the need for conservation support. In order to assess population health in more detail, further research is required to assess genetic diversity and roost dynamics, and to identify areas that may be important for feeding and nesting throughout the range. As many of these areas are likely to overlap with community owned land, we suggest that future conservation actions should revolve around, and be led by, these communities.

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Influence of the nycthemeral cycle on the roosting behaviour of the Orange-winged Amazon

Cited by 3 publications

References 11 publications

Reintroduction and monitoring of the bird Amazona aestiva (Psittaciformes: Psittacidae) in Brazil

Reintroduction and monitoring of the bird Amazona aestiva (Psittaciformes: Psittacidae) in Brazil

Movimientos vespertinos de la lora nuca amarilla (Amazona auropalliata) en la ciudad de San Salvador, El Salvador

Conservation status of the recently described Ecuadorian Amazon parrot Amazona lilacina

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