Figure 4 - uploaded by Bryan D. Watts
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Whimbrel with field readable alpha-numeric flag and colored wrap-around darvic band on left leg, and USFWS Incoloy® band on right leg.
Context in source publication
Context 1
... field readable lime green alpha-numeric band was attached above the left metatarsal joint. A yellow wrap-around darvic band was placed above the alpha-numeric band to identify the bird to banding location ( Figure 4). Standard morphometric measurements, including wing, tail and culmen were recorded. ...
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This paper is an attempt to exhibit the commonalities as well as variations present in the numeral systems of four Austro-Asiatic (AA) languages of India, namely Khasi, Pnar, Santali and Mundari. Khasi and Pnar are classified under the ‘Mon- Khmer Branch’ of AA family, while languages Mundari and Santali fall under the ‘Munda Branch’ of the same. T...
Haftungsausschluss: Dieses Dokument wurde sorgfältig von den Experten der vfdb erarbeitet und vom Präsidium der vfdb verabschiedet. Der Verwender muss die Anwend-barkeit auf seinen Fall und die Aktualität der ihm vorliegenden Fassung in eigener Ver-antwortung prüfen. Eine Haftung der vfdb und derjenigen, die an der Ausarbeitung betei-ligt waren, is...
Citations
Reliable estimates of adult survival for many shorebird species are lacking. We used Cormack–Jolly–Seber (CJS) methods to provide an estimate of apparent, or local, survival (φ) of a population of whimbrels, Numenius phaeopus, breeding in the subarctic Churchill, Manitoba region. We used data collected in two time‐periods: 1973–1976 and 2010–2014. We also quantified nest‐site fidelity in 2010–2014 to provide context to our apparent survival estimates because mark‐recapture analyses cannot distinguish between mortality and permanent emigration. The most parsimonious CJS model did not include effects of sex or time on apparent adult survival in either period (φ = 0.76 ± 0.13 SE; φ = 0.75 ± 0.04 SE, 1973–1976 and 2010–2014, respectively). Additionally, observations of marked whimbrels between 2010 and 2019 (n = 124) showed that 61 of the 105 marked individuals (58.1%) were resighted. These estimates of return rates are, as expected, much lower than estimates of apparent survival. The median year‐to‐year distance between nests (n = 139) in 2010 to 2014 was 198 m ± 88 SE and did not differ significantly (p = 0.84) between females (x̄ = 721.9 m ± 119.8 SE) and males (x̄ = 720.3 m ± 83.1 SE). If our apparent survival estimate is indicative of true survivorship, then adult mortality during the non‐breeding season has remained constant over the last five decades, implying that the recent decline in whimbrel populations may stem largely from reduced fecundity, including egg or juvenile survival, rather than primarily from reduced adult survival.
