A decline in many African raptor populations may contribute to loss of ecosystem serves such as pest control. The Black-shouldered Kite (Elanus caeruleus) stands out as an exception, experiencing range expansions due to its proclivity for agricultural landscapes. I surveyed roads throughout Swaziland agroecosystems for Black-shouldered Kites and looked at habit selection in a used versus available framework. I found that kites selected for savannahs and tall herbaceous vegetation but did not show preferences for or against land use types. I also found a significant relationship with Black-shouldered Kite presence and low tree densities in the immediate vicinity of a perch site. I did observe kites in agricultural areas, as well as pairs of birds and fledglings, suggesting that although they are not selecting for agriculture in proportion to its availability, they are foraging in it. This may be a boon farmers who implement ecologically based rodent management programs.
Author: Ursula Poznanski
Publisher: Loewe Verlag
+++ Platz 7 der Spiegel-Bestseller (Paperback) nach der ersten Verkaufswoche +++ Es ist klein. Es ist leise. Es sieht alles. Jona ist siebzehn und seinen Altersgenossen ein ganzes Stück voraus, was Intelligenz und Auffassungsgabe betrifft. Allerdings ist er auch sehr talentiert darin, sich bei anderen unbeliebt zu machen und anzuecken. Auf die hervorgerufene Ablehnung reagiert Jonas auf ganz eigene Weise: Er lässt sein privates Forschungsobjekt auf seine Neider los: eine Drohne. Klein, leise, mit einer hervorragenden Kamera ausgestattet und imstande, jede Person aufzuspüren, über deren Handynummer Jona verfügt. Mit dem, was er auf diese Weise zu sehen bekommt, kann er sich zur Wehr setzen gegen Spott und Häme. Doch dann erfährt er etwas, das besser unentdeckt geblieben wäre, und plötzlich schwebt er in tödlicher Gefahr. Drohnen, Überwachung, Manipulation, dunkle Geheimnisse – gekonnt webt Ursula Poznanski hochaktuelle Themen in ihren neuen Thriller. Die Spiegel-Bestseller-Autorin legt nach den Jugendbuch-Bestsellern Erebos, Saeculum, der Eleria-Trilogie (Die Verratenen, Die Verschworenen, Die Vernichteten) und Layers ihren neuen Jugendbuch-Thriller vor.
Birds of New Guinea
Author: Bruce M. Beehler, Thane K. Pratt
Publisher: Princeton University Press
New Guinea, the largest tropical island, supports a spectacular bird fauna characterized by cassowaries, megapodes, pigeons, parrots, kingfishers, and owlet-nightjars, as well as the iconic birds of paradise and bowerbirds. Of the nearly 800 species of birds recorded from New Guinea, more than 350 are found nowhere else on Earth. This comprehensive annotated checklist of distribution, taxonomy, and systematics of the birds of New Guinea is the first formal review of this avifauna since Ernst Mayr's Checklist, published in 1941. This new book brings together all the systematic, taxonomic, and distributional research conducted on the region's bird families over the last 70 years. Bruce Beehler and Thane Pratt provide the scientific foundation for the names, geographic distributions, and systematic arrangement of New Guinea's bird fauna. All technical information is annotated and a geographic gazetteer and bibliography are included. This book is an ideal complement to the Birds of New Guinea field guide also published by Princeton, and is an essential technical reference for all scientific libraries, ornithologists, and those interested in bird classification. The first complete revision of the New Guinea bird fauna since 1941 Accounts for 75 bird species new to the region Includes a geographic gazetteer, bibliography, and explanations of taxonomic and systematic classifications
This book is an illustrated field guide to diurnal raptors, a bird group that many people find among the most difficult birds to identify. Raptors are popular and iconic birds, and important ecologically as well as in legislation, with some species listed as threatened. Birds of Prey of Australia will enable people to more easily identify them. It also provides a brief overview of the biology of raptors and an indication of the current state of knowledge on them. The book has been completely revised and updated, with 15 years of new data, a section on difficult species-pairs (split-images providing direct contrast), and rearranged in modern field-guide format, making it easy to use and enabling rapid identification of ‘difficult’ raptors. Birds of Prey of Australia will appeal to a wide range of readers, including ornithologists, raptor biologists, birdwatchers, wildlife rescuers/carers, raptor rehabilitators, zookeepers, naturalists, bushwalkers, ecological consultants, fauna authorities, park rangers, state forestry personnel and students. 2013 Whitley Award Commendation for Vertebrate Guide.
Australian predators of the sky are some of the most admired and the most despised of the bird world. Raptors are admired for their strength and independence, but despised for their depredations on livestock and favourite garden birds, while the owls are at once respected for their wisdom and watchfulness and feared for their mournful cries and association with darkness and ill-omen. The book begins with fascinating descriptions by award-winning natural history author Penny Olsen on the discovery and illustration of birds of prey in Australia, and their characteristics and ecology, followed by full-colour illustrations of each species by a variety of artists, accompanied by intriguing notes about the birds. Australian Predators of the Sky comprises over 200 striking paintings, lithographs and engravings of all 34 Australian species—25 diurnal birds of prey such as eagles, hawks and falcons, and nine owls such as hawk-owls and barn-owls.
Author: Prideaux John Selby
Australian High Country Raptors covers raptor species that regularly breed in the high country above 600 metres, from Goulburn in New South Wales down to the hills outside Melbourne, Victoria. Author Jerry Olsen explores the nature of these striking animals that are classified as Accipitriformes (diurnal hawks, falcons, kites and eagles), Falconiformes and Strigiformes (nocturnal owls). Comparisons between these high country raptors and lower-elevation breeders are also provided, in addition to comparisons with raptors found overseas, especially from North America and Europe. The book begins with a description of habitats and vegetation types in the high country, and which raptors are likely to be seen in each habitat type. It continues with sections on finding and watching raptors, raptor identification, hunting styles, food, breeding and behaviour, and conservation. Appendices provide species accounts for diurnal breeding species in the high country, with basic information about their ecology, distribution and conservation, as well as detailed instructions about handling an injured or orphaned raptor. Illustrated throughout with photographs and drawings, Australian High Country Raptors offers readers a chance to look into the lives of Australia’s fascinating birds of prey.