Ryan S. Terrill
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View article: Convergent niche shifts of endangered parrots (genus <i>Amazona</i> ) during successful establishment in urban southern California
Convergent niche shifts of endangered parrots (genus <i>Amazona</i> ) during successful establishment in urban southern California Open
Aim Introduced species offer insight on whether and how organisms can shift their ecological niches during translocation. The genus Amazona offers a clear test case, where sister species Red‐crowned ( A. viridigenalis ) and Lilac‐crowned P…
View article: A highly contiguous genome assembly for the Yellow Warbler ( <i>Setophaga petechia</i> )
A highly contiguous genome assembly for the Yellow Warbler ( <i>Setophaga petechia</i> ) Open
The Yellow Warbler (Setophaga petechia) is a small songbird in the wood-warbler family (Parulidae) that exhibits phenotypic and ecological differences across a widespread distribution and is important to California’s riparian habitat conse…
View article: A highly contiguous genome assembly for the Yellow Warbler (<i>Setophaga petechia</i>)
A highly contiguous genome assembly for the Yellow Warbler (<i>Setophaga petechia</i>) Open
The Yellow Warbler ( Setophaga petechia ) is a small songbird in the New World Warbler family (Parulidae) that exhibits phenotypic and ecological differences across a widespread distribution and is important to California’s riparian habita…
View article: Hybrid zone or hybrid lineage: a genomic reevaluation of Sibley’s classic species conundrum in<i>Pipilo</i>towhees
Hybrid zone or hybrid lineage: a genomic reevaluation of Sibley’s classic species conundrum in<i>Pipilo</i>towhees Open
Hybrid zones can be studied by modeling clines of trait variation (e.g., morphology, genetics) over a linear transect. Yet, hybrid zones can also be spatially complex, can shift over time, and can even lead to the formation of hybrid linea…
Feather function and the evolution of birds Open
The ability of feathers to perform many functions either simultaneously or at different times throughout the year or life of a bird is integral to the evolutionary history of birds. Many studies focus on single functions of feathers, but a…
A new genus and species of tanager (Passeriformes, Thraupidae) from the lower Yungas of western Bolivia and southern Peru Open
We describe a colorful and distinctive new species of tanager from the lower slopes of the Andes of southeastern Peru and western Bolivia. The species was first noted from southeastern Peru in 2000, but little of its natural history was un…
Threshold models improve estimates of molt parameters in datasets with small sample sizes Open
The timing of events in birds’ annual cycles is important to understanding life history evolution and response to global climate change. Molt timing is often measured as an index of the sum of grown feather proportion or mass within the pr…
View article: Niche shifts lead to hybridization between two<i>Amazona</i>parrot sister-species introduced to Southern California
Niche shifts lead to hybridization between two<i>Amazona</i>parrot sister-species introduced to Southern California Open
This paper has been withdrawn by the authors while evaluating reviewer concerns about interpretation of the genomic data and due to errors found by the authors in the scoring of photos. Therefore, the authors do not wish this work to be ci…
Ancient DNA from the extinct Haitian cave-rail (<i>Nesotrochis steganinos</i>) suggests a biogeographic connection between the Caribbean and Old World Open
Worldwide decline in biodiversity during the Holocene has impeded a comprehensive understanding of pre-human biodiversity and biogeography. This is especially true on islands, because many recently extinct island taxa were morphologically …
Evolution of breeding plumages in birds: A multiple‐step pathway to seasonal dichromatism in New World warblers (Aves: Parulidae) Open
Many species of birds show distinctive seasonal breeding and nonbreeding plumages. A number of hypotheses have been proposed for the evolution of this seasonal dichromatism, specifically related to the idea that birds may experience variab…
Title: Evolution of breeding plumages in birds: A multiple-step pathway to seasonal dichromatism in New World Warblers (Aves: Parulidae) Open
Bird feathers serve multiple functions through their physical structure and coloration, but the evolution of functional novelty in bird feathers remains poorly understood. We investigated how selective pressures gave rise to seasonal color…
Predictors of past avian translocation outcomes inform feasibility of future efforts under climate change Open
Conservation translocations – the intentional movement of individuals from one area to another for conservation purposes – provide a potential response to climate change, but can be costly and risky. To help improve translocation outcomes …
Tricolored Blackbirds Feeding in Joshua Tree Inflorescences Open
The Tricolored Blackbird (Agelaius tricolor) is endangered (Birdlife International 2018) and declining rapidly (Cook and Toft 2005, Meese 2017), designated as threatened by the state of California (Calif.Dept.Fish and Wildlife 2019), and n…
Feather growth rate increases with latitude in four species of widespread resident Neotropical birds Open
The pace of life history events varies with latitude in many taxa. In birds, especially, life history events tend to be protracted in the tropics. This pattern is likely the result of reduced seasonality in resources and changes in trade-o…
Evolutionary Interactions of Feather Molt in Birds Open
The evolution of feathers was a key innovation for birds. The many functions that feathers provide have allowed birds to diversify into myriad habitats and styles of life. However, feathers are lightweight and break down, and must be repla…