Snowy Plover (Charadrius nivosus)

Page, Gary W.; Stenzel, Lynne E.; Warriner, John S.; Warriner, Jane C.; Paton, Peter W. C.

doi:10.2173/bow.snoplo5.01

Cited by 7 publications

(18 citation statements)

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“…The Pacific coastal population of snowy plovers has been similarly, but perhaps more severely affected (Page et al 1991(Page et al , 2009, resulting in their listing as threatened in accordance with the Endangered Species Act (USFWS 1993). Both western and SGP population declines are largely attributed to habitat degradation caused by vegetation encroachment (Winton et al 2000;USFWS 2007;Saalfeld et al 2012), disturbance (Wilson-Jacobs and Meslow 1984;Lafferty 2001;Page et al 2009;Hardy and Colwell 2012;Saalfeld et al 2013), increased rates of nest predation (Hardy and Colwell 2012;Saalfeld et al 2011Saalfeld et al , 2013, and loss of reliable sources of fresh surface water (Andrei et al 2009;Saalfeld et al 2012Saalfeld et al , 2013Heintzman et al 2017). Some success in slowing, or reversing, these declines has been observed among the Pacific coastal population due to predator management and efforts to mitigate disturbance (Lafferty et al 2006;Hardy and Colwell 2008;Mullin et al 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Snowy plover habitat includes sparsely-vegetated coastal beaches, riparian sandbars, saline lake shorelines, and alkaline salt flats (Page et al 2009). Salt Plains National Wildlife Refuge (NWR; also referred to here as the "Refuge") in Oklahoma is a continentally significant stopover and breeding site for numerous species of shorebirds (Morrison et al 2006;Thomas et al 2012).…”

Section: Introductionmentioning

confidence: 99%

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Detectability and Abundance of Snowy Plovers at Salt Plains National Wildlife Refuge, Oklahoma

Heath‐Acre

Conway

Boal

et al. 2020

Journal of Fish and Wildlife Management

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In the past two decades, Salt Plains National Wildlife Refuge has been increasingly recognized as important habitat for both breeding and migratory shorebirds. North American snowy plovers Charadrius nivosus in particular rely on the nearly 5,000 ha salt flat at Salt Plains National Wildlife Refuge, which thousands use as breeding and stopover habitat. Elsewhere on the Southern Great Plains, decadal declines up to 75% within snowy plover subpopulations have been documented and attributed to vegetation encroachment, increased rates of nest predation, and decreased availability of fresh surface water. Despite many attempts to estimate this species’ abundance across the continent, to date, no known attempt at distance sampling of snowy plovers has occurred. To address this paucity of data, we assessed feasibility of distance sampling methods to accurately estimate snowy plover abundance and detectability. Distance sampling surveys (2017-2018) indicated high detection probability (P = 0.80) and the population abundance estimate across the salt flat extrapolated to 3,307 individuals. The distance sampling population abundance estimate is lower than population abundance estimates determined by two previous studies within the last decade but far greater than 2,105 estimated for a study in 2006. Overall, distance sampling snowy plovers at Salt Plains National Wildlife Refuge proved to be an effective addition to pre-established survey protocols but further investigation is needed to compare accuracy and precision of methods used in this study, annual surveys conducted by Salt Plains National Wildlife Refuge, and other potential snowy plover surveys.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Detectability and Abundance of Snowy Plovers at Salt Plains National Wildlife Refuge, Oklahoma

Heath‐Acre

Conway

Boal

et al. 2020

Journal of Fish and Wildlife Management

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“…comm.). Snowy Plovers in the SGP are typically considered migratory, but few data are available concerning their migratory movements (Paton 1995, Page et al 2020. For example, wintering areas of the Snowy Plover population at Bitter Lake National Wildlife Refuge (NWR) in New Mexico are unknown.…”

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confidence: 99%

“…Throughout their range, both migratory and resident subpopulations of Snowy Plovers exist (Eberhart‐Phillips and Colwell 2014, Page et al. 2020), and some individuals switch migration strategies annually (W. C. Conway, pers. comm.).…”

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confidence: 99%

“…Snowy Plovers ( Charadrius nivosus ) in North America are distributed from the Pacific coast, inland to Kansas and the Southern Great Plains (SGP) of Oklahoma, New Mexico, and Texas and south along the Gulf coast from Mexico to Florida and the Caribbean (Sibley 2001, Page et al. 2020). Breeding and winter habitat of Snowy Plovers consists primarily of saline lake shorelines, alkaline salt flats, and sandy coastal beaches.…”

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confidence: 99%

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Using automated telemetry to identify population connectivity and migration phenology of Snowy Plovers breeding in the Southern Great Plains

Heath‐Acre

Boal

Collins

et al. 2022

J of Field Ornithology

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Within-breeding season movements have not been quantified for Snowy Plovers (Charadrius nivosus) breeding on the Southern Great Plains (SGP), where suitable breeding habitat can range from less than 10 km to more than 600 km apart. This mosaic distribution of discrete patches of breeding habitat, combined with weather stochasticity and low densities of Snowy Plovers in Texas and New Mexico, increases the risk of local and regional extirpation. Further, little is known about SGP Snowy Plover migration phenology or winter habitat. We used the Motus Wildlife Tracking System to examine population connectivity, migration phenology, and winter habitat locations of adult Snowy Plovers in the SGP. Movements of Snowy Plovers during the 2017 and 2018 breeding seasons suggest little to no connectivity between the Salt Plains National Wildlife Refuge population in Oklahoma and populations in Texas and New Mexico. However, several Snowy Plovers in Texas moved to a lake formed by freshwater springs that may have provided higher-quality breeding and foraging habitat. Migrating primarily at night, we found that Snowy Plovers from a breeding area in Oklahoma made migratory movements to Texas and the Louisiana Gulf Coast. These data may be important to long-term conservation and planning efforts relative to understanding regional persistence and connectivity among breeding populations of Snowy Plovers in the SGP. Our results also highlight the need for future studies of wintering habitats used by SGP Snowy Plovers. RESUMEN.Uso de telemetrı ´a automatizada para identificar conectividad migratoria y fenologı ´a de la migración de chorlos nevados en el sur de las Grandes Planicies Los movimientos dentro de la temporada reproductiva no han sido cuantificados en chorlos nevados (Charadrius nivosus) que anidan en el sur de las Grandes Planicies (SGP), donde los hábitats reproductivos disponibles se encuentran separados de 10 a más de 600 km uno del otro. Esta distribución de mosaicos de parches discretos de hábitat reproductivo, combinado con estocasticidad en el estado del tiempo y las bajas densidades de chorlos nevados en Texas y Nuevo México, incrementan el riesgo de ser extirpados local y regionalmente. Además, se sabe poco sobre la fenologı ´a de la migración y hábitat de invernada del chorlo nevado en las SGP. Usamos el Sistema de Seguimiento de Vida Silvestre Motus para examinar la conectividad poblacional, fenologı ´a de la migración y localización de hábitat invernal de chorlos nevados adultos en las SGP. Los movimientos de los chorlos nevados durante las temporadas reproductivas de 2017 y 2018 sugieren poca o nula conectividad entre la población del Salt Plains National Wildlife Refuge en Oklahoma, y poblaciones en Texas y Nuevo México. Sin embargo, varios chorlos nevados de Texas se movieron a un lago formado por manantiales de agua dulce que podrı ´an haberles provisto de hábitat reproductivo y de forrajeo de mayor calidad. Dado que migran principalmente de noche, encontramos que los chorlos nevados de un área reproductiva ...

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Climate change consequences for differential adult survival and the mating system of a temperate breeding shorebird

Stenzel,

Hudgens,

Page

et al. 2023

Ecosphere

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Managing for the effects of climate change on species whose populations are currently imperiled requires detailed knowledge of the relationship between their demographic rates and climate variables. We sought this information for the West Coast breeding population of snowy plover (Charadrius nivosus), which was federally listed as threatened in 1993 due to substantial declines in the numbers of plovers breeding along the coast and in the number of sites occupied for breeding. Snowy plovers employ a serially polygamous breeding system in which the male typically tends chicks to independence. This unusual breeding system is favored by male‐biased sex ratios in local populations. As part of a multispecies study of the effect of climate change on population growth, we used mark–capture models to examine climate drivers of adult survival for 1219 snowy plovers banded at Monterey Bay over 38 years and known to overwinter on the surrounding north‐central California outer coast. Nonclimate variables, including sex and unmeasured annual mortality risks (e.g., predator abundance), were the primary factors affecting adult survival. However, there is evidence that cold weather, particularly extended cold snaps with daily low temperatures below 2°C and daily high temperatures below 10°C, decreases overwinter survival. Exceptionally cold winters had a particularly strong effect on adult female plovers, contributing to the male‐biased adult sex ratios. Future winter climate on the north‐central California coast is projected to be generally warmer with fewer and shorter cold snaps. Reduced mortality from cold winter weather may mitigate other threats faced by plovers, such as anthropogenically enhanced predator populations, habitat loss, and accelerated sea level rise, while altering the adult sex ratio and potentially shifting the evolutionary landscape maintaining the plover's unusual breeding system.

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Snowy Plover (Charadrius nivosus)

Cited by 7 publications

References 0 publications

Detectability and Abundance of Snowy Plovers at Salt Plains National Wildlife Refuge, Oklahoma

Detectability and Abundance of Snowy Plovers at Salt Plains National Wildlife Refuge, Oklahoma

Using automated telemetry to identify population connectivity and migration phenology of Snowy Plovers breeding in the Southern Great Plains

Climate change consequences for differential adult survival and the mating system of a temperate breeding shorebird

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