Topic
Jack snipe
About: Jack snipe is a research topic. Over the lifetime, 10 publications have been published within this topic receiving 22 citations. The topic is also known as: Lymnocryptes minimus & Jack snipe.
Papers
TL;DR: The very high success in sex identification by a discriminant analysis of morphometric traits may promote this approach as an alternative to molecular sexing techniques in Jack Snipe, when non-invasive sampling is required.
Abstract: Jack Snipe Lymnocryptes minimus is a small wader showing sexual monomorphism in plumage and some dimorphism in size To study whether parameters of body size may be used to reliably sex individuals of this species, a discriminant function analysis was applied to a set of morphometric traits measured in birds caught during migration and the wintering period in northern Poland Birds were sexed molecularly based on size differences in CHD-linked sequences from W- and Z-chromosomes Males were significantly larger than females in wing length, head length, skull length, bill depth, bill width and the length of middle toe with claw, while females had longer bills All traits except for bill width were highly repeatable A stepwise discriminant function analysis selected wing length, skull length, bill length and bill depth as the best discriminators of sex in Jack Snipe The discriminant function based on these four traits enabled reliable sexing of 99% of individuals The alternative function, excluding wing length, which may not always be available for measurement, showed 967% classification success Such very high success in sex identification by a discriminant analysis of morphometric traits may promote this approach as an alternative to molecular sexing techniques in Jack Snipe, when non-invasive sampling is required
10 citations
5 Dec 2018
TL;DR: The regularization of the wintering status of the Jack Snipe (Lymnocryptes minimus) in NW Italy has been confirmed for the first time within the heathland of the “Baraggia di Candelo Natural Reserve” (Piedmont, Biella) as mentioned in this paper.
Abstract: The regularization of the wintering status of the Jack Snipe (Lymnocryptes minimus) in NW Italy has been confirmed for the first time within the heathland of the “Baraggia di Candelo Natural Reserve” (Piedmont, Biella). Regular monitoring from winter 2009/2010 to winter 2015/2016 allowed to describe the phenology and the abundance of the species in the area comparing it with that of an ally species, the Common Snipe (Gallinago gallinago). A maximum count of 6 birds during winter and at least 13 individuals during the spring migration were recorded. The species was more abundant during the second 10-day period of November and the first 10-day period of March. Jack Snipe outnumber the Common Snipe throughout the period they were censused.
4 citations
1 Aug 1936
3 citations
TL;DR: A trapping technique tested and improved in the Camargue during winter and migration periods appears to be appropriate for catching good numbers of Jack Snipe.
Abstract: The biology of the Jack Snipe Lymnocryptes minimus is poorly known and recent estimates of its population size are contradictory. To encourage ringing and marking studies of this cryptic species, we tested and improved a trapping technique in the Camargue during winter and migration periods. This capture method consists of walking with a horizontally-held net across sites where Jack Snipe regularly occur to catch birds that are flushed from beneath the net. We compared the catching rates of a 5 m x 10 m net and a 10 m x 10 m net. A total of 40 Jack Snipes was caught during 48 hours of trials with the two nets. Of the total number of individuals flushed, the average capture rate was 23% with the small net and 49% with the larger one, this difference being statistically significant. This method, therefore, appears to be appropriate for catching good numbers of Jack Snipe.
3 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 1 |
| 2018 | 1 |
| 2017 | 1 |
| 2011 | 1 |
| 2009 | 1 |
| 2008 | 1 |