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Statistical analysis of avian breeding and survivalFreeman, S. N. January 1990 (has links)
No description available.
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A statistical examination of British bird observatories dataDarby, K. V. January 1986 (has links)
No description available.
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Tvorba preparátů vybraných druhů ptáků / Bird Taxidermy in Selected Bird SpeciesHepnarová, Věra January 2015 (has links)
The thesis briefly describes some techniques of preparation which should lead to creating ornithological dermoplastic preparations and their use in education and biology. These techniques are shown on several bird species. The thesis can be also used as a instruction for creating ornithological dermoplastic bird preparations. It shows some problems of preparation technice. The main goal of the thesis is creating a real ornithological preparations which are, used for education on Pedagogical Faculty of Charles University in Prague. Key words: teaching practices, preparation, taxidermy, birds, ornithological preparation
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Birdland : Ornithological station and Visitor Centre at Lista / Birdland : Fågelstation och Naturum på ListaCronwall, Astrid January 2014 (has links)
For thousands of years the migratory birds has travelled across the earth in the same directions and returns to the same places generation through generation. They navigate by the magnetic field of the earth, star constellations, polarized light and through a visual memory of the geological landmarks like the coastlines. After they have made their journey across open sea they need place for resting. Lista is the first outpost after the long distance over the North Sea. Lista Bird Observatory has been in operation since 1989. The bird observatory's premier task is to identify the existence and development of bird populations and to collect quantitative data on bird migration over time. The observatory is strategically located at the flyways for several migration birds. Ever since its establishment all observation data has been recorded and since 1990 the observatory also make standardized bird ringing. In Norway, this material constitutes unique time series for the presence of a large number of bird species. This project answers to the need of appropriate locations for the bird observatory. It creates conditions for a national and an international research and a platform for the Norwegian Ornithological Society. It also gives spaces for environmental education and information where the architecture emphasizes the landscape as well as the bird- and wildlife. Local residents and occasional visitors are given room for recreation and meeting places and the project connects to a Norwegian culture of experience tourism. It underlines the bird observatory's significance and creates a local and regional center for bird watching. The architecture creates a focus and an awareness of the surrounding landscape and alludes to a tradition of vistas but in the same time it offers the visitors to enter and explore the nature. / I tusentals år flyttfåglarna har rest över jorden i samma riktningar och återvänder till samma platser generation efter generation. De navigerar genom jordens magnetfält, stjärnbilder, polariserat ljus och genom ett visuellt minne av geografiska landmärken såsom kuststräckor och öar. Efter att de har gjort sin resa över öppet hav behöver de plats för vila. Lista är den första utposten efter den långa resan över Nordsjön. Lista fågelstation har varit verksam sedan 1989. Fågelstationens främsta uppgift är att kartlägga förekomsten och utvecklingen av fågelpopulationer samt att samla in kvantitativ data om flyttfåglar och deras rörelser över tid. Observatoriet är strategiskt beläget vid flyttsträckor för flertalet flyttfåglar. Ända sedan starten har alla observationsdata registrerats och sedan 1990 gör fågelstationen även standardiserade ringmärkning. I Norge utgör detta material unika tidsserier för förekomsten av ett stort antal fågelarter. Detta projekt svarar för behovet av ändamålsenliga lokaler för fågelstation. Det skapar förutsättningar för en nationell och internationell forskning och en plattform för Norsk Ornitologisk Förening. Det ger också utrymmen för miljöutbildning och miljöinformation där arkitekturen betonar landskapet samt fågel-och djurlivet. Lokala invånare och tillfälliga besökare ges rum för rekreation och mötesplatser och projektet ansluter till en norsk kultur av friluftsturism. Det understryker fågelstationens betydelse och skapar ett lokalt och regionalt centrum för fågelskådning. Arkitekturen skapar ett fokus och en medvetenhet om det omgivande landskapet och anspelar på en norsk tradition av vyer men erbjuder på samma gång besökarna att stiga ut i och uppleva naturen.
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Étude de la biologie et de la vulnérabilité au développement anthropique des oiseaux marins nocturnes à La Réunion / Fondamental and applied researches about the interactions between human infrastructures and nocturnal seabirds in Réunion IslandGineste, Benoit 13 September 2016 (has links)
La biodiversité est actuellement fortement menacée par les activités humaines. Dépendant des milieux marins et terrestres, les oiseaux marins sont particulièrement exposés aux pressions anthropiques. À La Réunion, les conséquences des impacts des aménagements sur les populations restent méconnues. Dans une optique de conservation et de réalisation d'études environnementales pertinentes, des informations fiables sur la répartition des espèces, sur leur comportement de vol et une évaluation de leur vulnérabilité vis-à-vis des aménagements sont nécessaires. Les objectifs de cette thèse sont de préciser des données biologiques et d'évaluer la vulnérabilité des oiseaux marins nocturnes de La Réunion face aux aménagements. Nous avons étudié l'évolution de la taille et de la répartition des colonies de puffin tropical Puffinus bailloni à l'échelle de l'île sur une période de 19 ans. Les patterns de vol du puffin tropical et du pétrel de Barau Pterodroma baraui ont été caractérisés par imagerie radar à différentes échelles temporelles et spatiales. Nos résultats montrent une stabilité apparente de la population de puffin tropical malgré la forte pollution lumineuse. Le puffin tropical et le pétrel de Barau présentent des patterns de vol spécifiques. Les effectifs estimés de pétrel de Barau suggèrent une population plus importante que celle connue actuellement. Les effectifs estimés de puffin tropical sont cohérents avec les estimations actuelles. Les jeunes pétrels de Barau s'envolent principalement durant les premières heures de la nuit. Des outils d'aide à la décision ont été produits. Nos travaux soulèvent la nécessité de poursuivre des recherches fondamentales et appliquées. / The biodiversity is currently threatened by human activities. As they depend both of marine and terrestrial habitats, seabirds are particularly exposed to human pressures. In Reunion Island, the consequences of the urbanization on populations are unknown. For conservation and environmental assessment purposes, accurate information on the species repartition, flight patterns and vulnerability to infrastructure is required. The goals of this thesis are to update biological information on species and to assess the vulnerability of nocturnal seabirds of Reunion Island exposed to infrastructure. We studied the evolution of the size and the repartition of the colonies of tropical shearwater Puffinus bailloni at the scale of the entire island over a 19-years period. The flight patterns of tropical shearwater and Barau's petrel Pterodroma baraui were described with radar technology at different spatial and temporal scales. Our results show an apparent stability of the tropical shearwater population despite an important light pollution. Tropical shearwater and Barau’s petrel present specific flight patterns. The estimated census of Barau's petrel suggests a population size higher than current estimation whereas the estimated census of tropical shearwater is reliable to current estimations. Barau's petrels' juveniles mostly take off during the first hours of the night. Decision making tools have been produced. Our study also highlights the need to conduct further fundamental and applied researches.
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