Papyrus Yellow-Warbler (Calamonastides gracilirostris)

Passive acoustic recorders have been used successfully as automated survey tools to detect terrestrial wildlife. However, few studies have monitored Neotropical migratory bird use of riparian forest habitat using this technology. Within dryland ecosystems, the forests along rivers support high bird diversity. Many bird species of conservation concern require these floodplain forest habitats for foraging, migration stop-overs, and breeding. Few studies have explored the use of acoustic records in riverine systems designated for conservation for their natural resource value via the Wild and Scenic Rivers Act in the USA. Using acoustic recorders, we document vocal activity of four riparian-obligate species (Bell’s Vireo, Vireo bellii; Summer Tanager, Piranga rubra; Yellow Warbler, Setophaga petechial; and Yellow-billed Cuckoo, Coccyzus americanus) to determine species occurrence along a Wild and Scenic River. We established three study reaches along the perennial Lower Verde River, in the Sonoran Desert of central Arizona, USA. Nine acoustic recorders were used over the period of 80–120 days during the summer of 2018. We measured vegetation composition and structure in 100 m2 plots paired with acoustic recorders. Visualizing vocal activity showed that three species were calling and singing at each reach; whereas, one species, the cuckoo, had fewer recordings and occurred later in the summer. We demonstrate the utility of acoustic monitoring even when applied to rare birds in complex riparian habitats. This information is important for land management and conservation efforts concerning these species of interest and identifying important habitat features in Southwestern US riparian woodlands.

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Yellow Warbler (Dendroica petechia)

10.2173/tbna.454.p ◽

1999 ◽

Author(s):

Peter E. Lowther ◽

C. Celada ◽

N. K. Klein ◽

Christopher C. Rimmer ◽

D. A. Spector

Keyword(s):

Dendroica Petechia ◽

Yellow Warbler

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Riparian habitat disturbed by reservoir management does not function as an ecological trap for the Yellow Warbler (Setophaga petechia)

Canadian Journal of Zoology ◽

10.1139/z11-138 ◽

2012 ◽

Vol 90 (3) ◽

pp. 320-328 ◽

Cited By ~ 6

Author(s):

S.P. Quinlan ◽

D.J. Green

Keyword(s):

Habitat Selection ◽

Habitat Preferences ◽

Canopy Cover ◽

Ecological Trap ◽

Riparian Habitat ◽

Yellow Warbler ◽

Nest Sites ◽

Selection Decisions ◽

Yellow Warblers ◽

Setophaga Petechia

Ecological traps arise when anthropogenic change creates habitat that appears suitable but when selected reduces the fitness of an individual. We evaluated whether riparian habitat within the drawdown zone of the Arrow Lakes Reservoir, British Columbia, creates an ecological trap for Yellow Warblers ( Setophaga petechia (L., 1766)) by investigating habitat preferences and the fitness consequences of habitat selection decisions. Preferences were inferred by examining how habitat variables influenced settlement order, and comparing habitat at nest sites and random locations. Males preferred to settle in territories with more riparian shrub and tree cover, higher shrub diversity, and less high canopy cover. Females built nests in taller shrubs surrounded by a greater density of shrub stems. Habitat preferences were positively associated with fitness: nest sites in taller shrubs surrounded by higher shrub-stem densities were more likely to avoid predation and fledge young, whereas territories with more riparian cover, higher shrub diversity, and less high canopy cover had higher annual productivity. We therefore found no evidence that riparian habitat affected by reservoir operations functions as an ecological trap. Current habitat selection decisions may be associated with fitness because Yellow Warblers are adapted to breeding in a heterogeneous environment subject to periodic flooding.

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Chloropeta similis Richmond. Mountain Yellow Warbler. Chloropetè de montagne.

The Birds of Africa ◽

10.5040/9781472927026.0067 ◽

2016 ◽

Keyword(s):

Yellow Warbler

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Diets of Insectivorous Birds Along the Colorado River in Grand Canyon, Arizona

The Condor ◽

10.1093/condor/106.1.106 ◽

2004 ◽

Vol 106 (1) ◽

pp. 106-115 ◽

Cited By ~ 5

Author(s):

Helen K. Yard ◽

Charles Van Riper ◽

Bryan T. Brown ◽

Michael J. Kearsley

Keyword(s):

Colorado River ◽

Bird Species ◽

Grand Canyon ◽

Dendroica Petechia ◽

Tamarix Chinensis ◽

Vegetation Zone ◽

Yellow Warbler ◽

Icteria Virens ◽

Del Rio ◽

Prey Items

Abstract We examined diets of six insectivorous bird species (n = 202 individuals) from two vegetation zones along the Colorado River in Grand Canyon National Park, Arizona, 1994. All bird species consumed similar quantities of caterpillars and beetles, but use of other prey taxa varied. Non-native leafhoppers (Opsius stactagolus) specific to non-native tamarisk (Tamarix chinensis) substantially augmented Lucy's Warbler (Vermivora luciae) diets (49%), while ants comprised 82% of Yellow-breasted Chat (Icteria virens) diets. Yellow Warbler (Dendroica petechia) diets were composed of 45% aquatic midges. All bird species consumed the non-native leafhopper specific to tamarisk. Comparison of bird diets with availability of arthropod prey from aquatic and terrestrial origins showed terrestrial insects comprised 91% of all avian diets compared to 9% of prey from aquatic origin. Seasonal shifts in arthropod prey occurred in diets of three bird species, although no seasonal shifts were detected in arthropods sampled in vegetation indicating that at least three bird species were not selecting prey in proportion to its abundance. All bird species had higher prey overlap with arthropods collected in the native, mesquite-acacia vegetation zone which contained higher arthropod diversity and better prey items (i.e., Lepidoptera). Lucy's Warbler and Yellow Warbler consumed high proportions of prey items found in greatest abundance in the tamarisk-dominated vegetation zone that has been established since the construction of Glen Canyon Dam. These species appeared to exhibit ecological plasticity in response to an anthropogenic increase in prey resources. Dieta de Aves Insectívoras a lo largo del Río Colorado en el Gran Cañon, Arizona Resumen. Examinamos la dieta de seis especies de aves insectívoras (n = 202 individuos) de dos zonas de vegetación a lo largo del Río Colorado en el Parque Nacional del Gran Cañon, Arizona, en 1994. Todas las especies de aves consumieron cantidades similares de orugas y escarabajos, pero el uso de otras presas fue variable. Los Cicadellidae (Homóptera) exóticos (Opsius stactagolus) específicos del tamarisco exótico (Tamarix chinensis) comprendieron una parte sustancial de la dieta de Vermivora luciae (49%), mientras que las hormigas representaron el 82% de la dieta de Icteria virens. La dieta de Dendroica petechia incluyó un 45% de dípteros acuáticos de la familia Cecidomyiidae. Todas las especies de aves consumieron el cicadellide exótico específico del tamarisco. La comparación de las dietas de aves con la disponibilidad de presas de artrópodos de origen acuático y terrestre mostró que los insectos terrestres comprendieron el 91% de todas las dietas de aves, comparado con un 9% de presas de origen acuático. Se registraron cambios estacionales en los artrópodos de la dieta de tres especies de aves, aunque no se detectaron cambios estacionales en los artrópodos muestreados en la vegetación, indicando que al menos tres especies de aves no estuvieron seleccionando las presas en proporción a su abundancia. Todas las especies de aves presentaron mayor superposición de presas con los artrópodos colectados en la zona de vegetación nativa de mesquite (Prosopis) y Acacia, la cual contuvo mayor diversidad de artrópodos y presas de mejor calidad (i.e., Lepidoptera). V. luciae y D. petechia consumieron altas proporciones de presas encontradas en mayor abundancia en la zona de vegetación dominada por el tamarisco, que ha sido establecida desde la construcción de la Presa Glen Canyon. Estas especies parecieron exhibir plasticidad ecológica en respuesta a un incremento antropogénico en las presas como recuso alimenticio.

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