In the revised generic classification, the downy woodpecker was placed with four other species in the resurrected genus Dryobates, that had been erected in 1826 by the German naturalist Friedrich Boie with the downy woodpecker as the type species. The downy woodpecker was usually placed in either Dendrocopos or Picoides, but a molecular phylogenetic study published in 2015 found that these genera did not form monophyletic groups. Linnaeus specified the type locality as America septentrionali (North America) but the locality is now restricted to South Carolina. The specific epithet pubescens is the Latin for "pubescent" or "downy". When in 1766 the Swedish naturalist Carl Linnaeus updated his Systema Naturae for the twelfth edition, he included the downy woodpecker, coined the binomial name Picus pubescens and cited Catesby's book. The downy woodpecker was described and illustrated with a hand-coloured plate by the English naturalist Mark Catesby in his The Natural History of Carolina, Florida and the Bahama Islands, which was published between 17. They can be distinguished from hairy woodpeckers by their black-spotted white tail feathers and a shorter bill.
#Black woodpecker Patch#
The smallest of North America's woodpeckers, downy woodpeckers are mainly black and white, with adult males having a red patch on the back of the head. Seven subspecies of the downy woodpecker are recognized, inhabiting different regions across North America. The downy woodpecker is very similar in appearance to the hairy woodpecker, although they are not closely related.Their resemblance is a result of convergent evolution. Downy woodpeckers are native predators of the European corn borer, contributing to controlling this invasive species. The bird nests in tree cavities and feeds primarily on insects, although it supplements its diet with seeds and berries. Downy woodpeckers primarily live in forested areas throughout the United States and Canada, with the exception of deserts in the southwest and the northern tundra. Length ranges from 14 to 18 cm (5.5 to 7.1 in). Our online platform, Wiley Online Library () is one of the world’s most extensive multidisciplinary collections of online resources, covering life, health, social and physical sciences, and humanities.The downy woodpecker ( Dryobates pubescens) is a species of woodpecker, the smallest in North America. With a growing open access offering, Wiley is committed to the widest possible dissemination of and access to the content we publish and supports all sustainable models of access. Wiley has partnerships with many of the world’s leading societies and publishes over 1,500 peer-reviewed journals and 1,500+ new books annually in print and online, as well as databases, major reference works and laboratory protocols in STMS subjects. Wiley has published the works of more than 450 Nobel laureates in all categories: Literature, Economics, Physiology or Medicine, Physics, Chemistry, and Peace. has been a valued source of information and understanding for more than 200 years, helping people around the world meet their needs and fulfill their aspirations.
#Black woodpecker professional#
Our core businesses produce scientific, technical, medical, and scholarly journals, reference works, books, database services, and advertising professional books, subscription products, certification and training services and online applications and education content and services including integrated online teaching and learning resources for undergraduate and graduate students and lifelong learners.
Wiley is a global provider of content and content-enabled workflow solutions in areas of scientific, technical, medical, and scholarly research professional development and education. We conclude that in continental Scandinavian forests, where snow depths are moderate (<0.7 m), food resources for the black woodpecker are well secured with present-day forestry practices. Year-round home ranges decreased in size with an increasing proportion of young plantations in the landscape. The preference for young plantations as feeding habitat corresponded with habitats where the staple food source, wood-living ants (mostly carpenter ants Camponotus spp.), was most abundant. Forest >50 years old was preferred for resting and display.
For feeding substrates, woodpeckers preferred stumps in young plantations and snags in old forest. For feeding habitat, birds preferred young plantations (15-30 yr) dominated by Norway spruce (Picea abies) and with high canopy closure. In total, we located 219 radiotagged birds 5,638 times during 1990-94, of which habitat was described at 722 locations of 103 birds.
Clearcutting practices have affected 80% of the 10,000-ha study area. To investigate whether the black woodpecker (Dryocopus martius) is threatened by modern forestry practices, we studied the use of habitats and feeding substrates in a managed boreal forest landscape of southcentral Scandinavia.
0 kommentar(er)
