Julio Amaro Betto Monsalvo

Julio Amaro Betto Monsalvo
University of Brasília | UnB · Department of Zoology

Master of Science

About

16
Publications
3,433
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29
Citations

Publications

Publications (16)
Article
Full-text available
Organismal distributions in human-modified landscapes largely depend on the capacity of any given species to adapt to changes in habitat structure and quality. The golden-headed lion tamarin (GHLT; Leontopithecus chrysomelas) is an Endangered primate from the Brazilian Atlantic Forest whose remaining populations occupy heterogeneous landscapes cons...
Article
New World vultures (Cathartidae) have essential roles in ecosystem functioning, but are susceptible to increasing anthropogenic impacts. Knowledge of several breeding, behavioral, and distributional parameters of Neotropical vultures is poorly organized and have not been properly reviewed. Here, we made a comprehensive review of original breeding r...
Article
Full-text available
Habitat loss and fragmentation, especially due to agriculture expansion, pose the main threats to biodiversity conservation. While some species are able to survive and proliferate in human-modified habitats (winner species), others are highly dependent on well-preserved habitats, being more vulnerable to extinction (losers). Many raptors can be con...
Article
Full-text available
Despite the key role that knowledge on breeding biology of Accipitriformes plays in their management and conservation, survey of the state-of-the-art and of information gaps spanning the entire Neotropics has not been done since 1995. We provide an updated classi cation of current knowledge about breeding biology of Neotropical Accipitridae and de...
Article
Full-text available
Breeding biology of the Short-tailed Hawk (Buteo brachyurus) was studied in the Ibirapuera Park, located in the urban area of the city of São Paulo. The 2010-2011 breeding season was monitored from incubation until the birds left the area (August-February). Observations made in the two previous breeding seasons are also presented. The nest, placed...
Data
Literature references with original breeding data of Neotropical Cathartidae published until 2016. Photographic breeding records of Cathartidae taxa on the WikiAves database by October 2018. Proposed corrections and comments on eleven museum egg sets originally assigned to Neotropical Cathartidae, but with identification issues.
Conference Paper
Full-text available
O conhecimento sobre a biologia reprodutiva dos Accipitriformes desempenha um papel fundamental em seu manejo e conservação, também permitindo maior eficiência de estudos sobre sua biologia. Em 1995, R. O. Bierregaard revisou a literatura sobre a biologia de raptores diurnos das Américas Central e do Sul, para evidenciar lacunas no conhecimento. Tr...
Poster
Full-text available
O uso de ferramentas por animais pode ser definido como a manipulação e transporte de qualquer objeto para utilizá-lo em um propósito específico. Objetos não manipulados, como uma superfície dura em que se quebra o envoltório do alimento, ou um ninho, devem ser referidos como ‘proto-ferramentas’. O uso de materiais de origem humana em ninhos de ave...
Conference Paper
Full-text available
In 1995, R. O. Bierregaard reviewed the literature on the biology of diurnal raptors from Central and South America, to highlight information gaps. Even though similar works has been done in some Latin American countries recently, there is still a lack of a comprehensive survey of the state-of-the-art of knowledge spanning the entire Neotropical re...
Research
Full-text available
Color polymorphism is particularly frequent in raptors, especially in the genus Buteo (Accipitridae). Studies point that these variations result from selective pressure, and several hypotheses were proposed to explain its maintenance. Predator-prey interactions may play an important role, and in some instances, cases of mimicry are also involved in...
Article
Full-text available
This note first describes two instances of Peregrine falcons (Falco peregrinus tundrius) capturing fish in different places in Brazil. The first record was in the Ibirapuera Park, municipality of São Paulo, where an adult male swept and captured a fish on the lake's surface, as a typical fishing raptor's strategy. The second one was an adult female...

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Projects

Projects (2)
Project
There are ~ 2 million egg sets (~ 5 million eggs) of birds collected since early 1800’s and deposited in more than 300 museums worldwide, among which there are ~ 100.000 egg sets of Neotropical birds (review in Marini et al. 2020). However, this huge number of specimens and its associated data (date, locality, clutch size, collector, etc.), has been poorly used both in the Neotropical region as well as in the rest of the world, despite the fact that several aspects of the breeding biology of birds remain unknown. This long-term project, started in 2014, has the broad objective to recover and then analyze a large amount of data about the breeding biology of Neotropical birds. To achieve this, we have been visiting museums and scientific collections from Brazil, Latin America, Europe and the USA. Specific objectives include: 1) visit the museums and institutions to take digital photos of the egg sets; 2) resolve and update the taxonomy of all egg sets photographed; 3) measure the eggs to obtain length, width, volume, and format; 4) validate species identification using the morphometry of the eggs; and 5) validate the records of each egg set by checking the geographical location. After these initial steps, we are using the filtered and validated egg sets to test several hypotheses, including those related to geographical patterns (ex. latitudinal, altitudinal, climatic, productivity, island effects) and to temporal patterns (ex. effects of climate change and evolution of traits). Some specific projects are analyzing brood parasite-host interactions, analyzing allometric relationships, reviewing the breeding information of certain taxa, and describing the breeding biology of species. Also, biological features of the species are being analyzed, such as nest type, migratory behavior, diet, and body mass. Lastly, we are also recovering information about the history of egg collections and egg collectors. Since 2014 several lab members assembled a data basis of more than 50.000 egg sets and photographed more than 18.000 egg sets (~ 60.000 eggs) in 34 museums and institutions. This dataset will grow in the next years by new visits to more museums. Several of our studies have already been published and dozens more are planned.
Project
I'm investigating the occurrence of geographical variation in breeding traits - such as clutch size, breeding season, etc. - for the 15 species of Buteo hawks present across the entire New World. My aims are to test hypotheses put forward to explain observed life-history patterns in birds, such as Lack’s and Ashmole’s. Hopefully, I’ll be able to identify which variables (such as environmental seasonality, temperature during breeding season, and migratory behavior) could better explain the breeding patterns I'm expecting to find. Data are being obtained from a comprehensive review of the literature and also from museums around the world.