Change of Iris Color with Age in Great Spotted Woodpeckers Dendrocopos major
نویسندگان
چکیده
منابع مشابه
Great spotted woodpeckers Dendrocopos major exert multiple forms of phenotypic selection on Scots pine Pinus sylvestris
Relatively few animal species extract seeds from closed conifer cones because of the forces required to spread apart or penetrate the woody scales. Those species that forage on seeds in closed cones tend to forage selectively, and therefore act as selective agents on cone structure. However, little is known about the foraging preferences and thus phenotypic selection that is exerted on conifers...
متن کاملDifference on cone size preferences between two coniferous species by Great Spotted Woodpecker (Dendrocopos major)
The number of species that specialize in pre-dispersal seed predation is relatively small. Examples of specialized pre-dispersal seed predators adapted to feeding on closed cones include vertebrate species like Crossbills, Squirrels, Nutcrackers and Woodpeckers. Seed predation selects against certain phenotypic features of cones and favors another phenotypic features. In this study, we document...
متن کاملEvidence of early change in iris color with latanoprost use.
Latanoprost, a 17-phenyl–substi-tuted analog of PGF 2 ␣, has been shown to effectively lower intraocu-lar pressure in clinical trials and darken the irides in both subhuman primates and humans. 1 The reported time of onset of the change in iris color has been noted to be as early as 3 months. To our knowledge , this case represents the earliest reported change in iris color following the initia...
متن کاملfaculty of psychology and social sciences group of anthropology master thesis in major of anthropology
چکیده پایان نامه (شامل خلاصه، اهداف، روش های اجرا و نتایج به دست آمده): کار جمع آوری گو یش های محلی در سال های اخیر شتاب امیدوار کننده ای به خود گرفته است. شاید از بارزترین اهداف جمع آوری گویش های مختلف، ثبت و ضبط آن، جلوگیری از نابودی و مهمتر از همه حل مشکلات دستوری زبان رسمی باشد. دقت در فرآیند های زبانی گویش های محلی نوع ارتباط مردم نواحی مختلف با پیرامون نشان را به ما نشان خواهد داد. از س...
Landscape Ecology of Eastern Spotted Skunks in Habitats Restored for RedCockaded Woodpeckers
Although examples are rare, conflicts between species of conservation concern can result from habitat restoration that modifies habitat to benefit a single taxon. A forest restoration program designed to enhance habitat for endangered red-cockaded woodpeckers (Picoides borealis) may be reducing available habitat for the eastern spotted skunk (Spilogale putorius), a forest-adapted sympatric spec...
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ژورنال
عنوان ژورنال: Japanese Journal of Ornithology
سال: 1983
ISSN: 0040-9480,1881-9702
DOI: 10.3838/jjo1915.32.139