The Owls of Brazil

Motta-Junior, José Carlos; Braga, Ana Claudia Rocha; Granzinolli, Marco Antonio Monteiro

doi:10.1007/978-3-319-57108-9_6

Cited by 12 publications

(11 citation statements)

References 98 publications

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“…, Bodrati and Trejo , Motta‐Junior et al. ). They are found in montane and tropical lowland evergreen forests with dense understory as well as in temperate forests (Marks et al.…”

Section: Methodsmentioning

confidence: 99%

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Predictive modeling for allopatricStrix(Strigiformes: Strigidae) owls in South America: determinants of their distributions and ecological niche-based processes

2017

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Strix (Strigidae) is a worldwide genus of 17 owl species typical of forested habitats, including Rusty‐barred Owls (S. hylophila), Chaco Owls (S. chacoensis), and Rufous‐legged Owls (S. rufipes) in South America. These species are distributed allopatrically, but the ecological traits that determine their distributions remain largely unknown and their phylogenetic relationships are unclear. We used species distribution models (SDMs) to identify variables explaining their distribution patterns and test hypotheses about ecological divergence and conservatism based on niche overlap analysis. For Rusty‐barred Owls and Chaco Owls, climatic factors related to temperature played a major role, whereas a rainfall variable was more important for Rufous‐legged Owls. When niche overlaps were compared, accounting for regional similarities in the habitat available to each species, an ecological niche divergence process was supported for Chaco Owl‐Rusty‐barred Owl and Chaco Owl‐Rufous‐legged Owl, whereas a niche conservatism process was supported for Rusty‐barred Owl‐Rufous‐legged Owl. Different ecological requirements support current species delimitation, but they are in disagreement with the two main hypotheses currently envisaged about their phylogenetic relationships (Chaco Owls as the sister taxa of either Rufous‐legged Owls or Rusty‐barred Owls) and support a new phylogenetic hypothesis (Rufous‐legged Owls as sister taxa of Rusty‐barred Owls). Our findings suggest that speciation of Rusty‐barred Owls and Rufous‐legged Owls was a vicariant event resulting from Atlantic marine transgressions in southern South America in the Miocene, but their niche was conserved because habitat changed little in their respective ranges. In contrast, Chaco Owls diverged ecologically from the other two species as a result of their adaptations to the habitat they currently occupy. Ecological and historical approaches in biogeography can be embedded to explain distribution patterns, and results provided by SDMs can be used to infer historical and ecological processes in an integrative way.

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“…, Bodrati and Trejo , Motta‐Junior et al. ). They are found in montane and tropical lowland evergreen forests with dense understory as well as in temperate forests (Marks et al.…”

Section: Methodsmentioning

confidence: 99%

“…As with other owls in the Neotropics, this group remains understudied (Bodrati and Trejo , Motta‐Junior et al. ) due to their nocturnal and elusive habits, cryptic nature, and low densities (Marks et al. , Enríquez ).…”

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confidence: 99%

Predictive modeling for allopatricStrix(Strigiformes: Strigidae) owls in South America: determinants of their distributions and ecological niche-based processes

2017

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“…Representatives Strigiformes, Nyctibiiformes and Caprimulgiformes are nocturnal and crepuscular birds, found in higher frequency mainly in forest environments (Belton, 1994;Sick, 1997).  ese species naturally present low population density in nature, due to the need for specialized environments to attend to all their territorial and trophic requirements (Sick, 1997;Motta-Junior et al, 2017). Due to their great ecological importance, they are considered apex species in the food chain and bioindicators (Fontana et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Diversity of Nocturnal Birds in Forest Fragments in the Pampa Biome, Southern Brazil

et al. 2021

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choliba). Summer was the most representative season in abundance and species richness. In terms of composition, fragment (A) presented a distinction, with an exclusive species, the bacurau-chintã (Hydropsalis parvula).  e feeding guilds are composed of carnivorous and insectivorous individuals, most of which are annual residents of the state.  e assemblage of nocturnal birds recorded in the fragments of deciduous seasonal forest in the central region reports information about this group, which seems to be locally adapted to live in these altered forest environments, which in a way, still provide resources to meet their trophic needs.

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“…Despite the great variety in the Burrowing owls' diet (Motta-Junior 2006, Andrade et al 2010, Cadena-Ortíz et al 2016, Holt et al 2018, few studies have been able to assign preyed items to species level. The lack of fine-scale taxonomic resolution for some prey species is because most studies are based on pellets analysis (Motta-Junior et al 2015), and some prey types, such as soft-bodied or small animals, are quickly digested and are rarely identified in these pellets. This matter limits further conclusions on foraging strategies and prey selection, especially of potentially dangerous or concealed prey, such as some reptiles.…”

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confidence: 99%

Reptiles preyed by the Burrowing owl (Athene cunicularia): new records and current knowledge in South America

et al. 2021

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Reptiles are largely preyed by other reptiles, mammals, and birds, including birds of prey (Alencar et al. 2012, Spencer et al. 2014, Cortes-Gomez et al. 2015. Consequently, reptiles developed a set of defense mechanisms to avoid predation, such as cryptic or aposematic coloration (Caro 2014).However, these strategies may not always be efficient, especially against specialized birds of prey.There are records on birds of prey finding, capturing, and ingesting different cryptic or aposematic reptiles

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The Owls of Brazil

Cited by 12 publications

References 98 publications

Predictive modeling for allopatricStrix(Strigiformes: Strigidae) owls in South America: determinants of their distributions and ecological niche-based processes

Predictive modeling for allopatricStrix(Strigiformes: Strigidae) owls in South America: determinants of their distributions and ecological niche-based processes

Diversity of Nocturnal Birds in Forest Fragments in the Pampa Biome, Southern Brazil

Reptiles preyed by the Burrowing owl (Athene cunicularia): new records and current knowledge in South America

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