Jann wübbenhorst. Library of the BGBM

RFG Napló: július 2007

jann wübbenhorst

Ezért a szekciók témakörei is nyitottak, elsősorban új kutatási eredmények bemutatására adnak lehetőséget a címben megfogalmazott témakörhöz kapcsolódóan. The Lower Saxony population of the Red-necked Grebe is still small, however it has to be considered that Lower Saxony is at the brink of the species' range. As promising strategies for reduction of invasive predators and other neozoa are missing, measures such as counteracting hypertrophy and renaturation of water body morphology and hydrology to a more natural state are of the highest priority regarding the conservation of grebe populations. Genetic differentiation among the present populations highlights the strong effects of population decline on the genetic structure of natural populations, which can be ultimately attributed to habitat loss following anthropogenic land use changes. Results also show that landscape factors affect black grouse distribution predominantly from an area much greater than an individual black grouse home range. Of the 212 species of breeding birds in Lower Saxony and Bremen, 29 are critically endangered, 18 endangered, 23 vulnerable and 8 are rare. A német honlap informatív linkgyűjteményében nem található magyarországi referencia, csupán brit, belga, amerikai, kínai példákat hoz fel az elérhető honlapcímek megadásával.

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Library of the BGBM

jann wübbenhorst

In most cases where field studies revealed predation as a threat at the population level, predatory mammals had the most severe impact, first of all Red Foxes. This was due to the hi gh rate of nest losses in combination with poor chick survival. We examined data from the Lower Saxony Federal Ornithological Fig. Although eggs, young or adult birds form only a small proportion of the diet of most predators, high predator densities can have serious consequences for prey species. A Fórum részhez is hozzá lehet szólni, sőt új fórumtémát is fel lehet vetni.

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CiteSeerX — 1WOODPECKERS AS INDICATORS FOR SUSTAINABLE FORESTRY? FIRST RESULTS OF A STUDY FROM LOWER SAXONY Running head: Woodpeckers as indicators for sustainable forestry?

jann wübbenhorst

Locally, strong fluctuations of increases and declines were observed. Management recommendations towards agriculture, forestry, hunting, and recreational interest groups are suggested. A munkaterv mintegy egyéves időszaka alatt akár több szakmai összejövetel szervezésére is mód nyílik. The meeting is planned for the 8 and 9 November 2007 and will take place in the Institute of Mathematics and Computer Science of the University of Latvia. Reproductive success in Ticino, however, was lower than in Finland and Scotland. At the same time the available management methods that proved to be successful should be applied immediately and consistently. Andere Arten nahmen innerhalb der drei Perioden zuerst stark ab, zur letzten Periode dann geringfügig wieder zu Rohrweihe, Schwarzmilan, Rotmilan.

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Club300 Germany

jann wübbenhorst

Ez Magyarországon még azáltal is megvalósul, hogy a Térinformatika szaklap Tóth Mária szakmai fordításában leközli az anyagot. A Leader kétségtelenül segítette és megkönnyítette egyfajta vidékfejlesztési stratégia elindulását. Coordinadora general de la obra Ma. Rabies immunisa-tion is only a small part in this structure. Species breeding irregularly or species considered to be reproduction guests are excluded as well as those 15 species which were formerly part of the breeding- bird community in Lower Saxony, but then became extinct.

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CiteSeerX — 1WOODPECKERS AS INDICATORS FOR SUSTAINABLE FORESTRY? FIRST RESULTS OF A STUDY FROM LOWER SAXONY Running head: Woodpeckers as indicators for sustainable forestry?

jann wübbenhorst

Densities were particularly high in no-hunting areas with consistently suitable habitat conditions. In this study, we examined land cover and land cover changes in a farmland-forest mosaic in eastern Lower Saxony, Germany and how they affect occurrence and persistence of black grouse. Zwergsumpfhuhn nicht bewertet Am 12. However, the growth in both the number of programs and graduates indicates that it is an established concept. They are committed to developing computer skills in lower division courses. We are looking forward to our continued co-operation.

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CiteSeerX — 1WOODPECKERS AS INDICATORS FOR SUSTAINABLE FORESTRY? FIRST RESULTS OF A STUDY FROM LOWER SAXONY Running head: Woodpeckers as indicators for sustainable forestry?

jann wübbenhorst

Az idei cikk témája annak érzékeltetése, hogy 1991 óta a nyomon követve a trendet a nagy kihívások: globális felmelegedés válaszlépései, a fenntartható fejlődés és az információs társadalom mindegyike számára mára már nélkülözhetetlen eszközzé vált a téradat infrastruktúra. Magyarország felismerte a programban rejlő lehetőségeket — talán a legfontosabb ezen lehetőségek között a bizalom és társulási készség erősödése — és a következő tervezési időszakra jelentősen növelte az erre fordítható forrásokat. Neben den Zwergsumpfhühnern riefen in diesem 2014 besonders feuchten bis nassen Teilbereich der Wümmeniederung auch einzelne Tüpfelsumpfhühner und Wasserrallen. The focus of the new red list has shifted more towards taking into account observed long-term decreases in populations and not so much absolute numbers of already small populations. The former vital populations of black grouse in this region declined dramatically in the last decades unto small remnants. The approaches for management against elevated predation range from habitat management over attempts to control relevant predators by lethal or non lethal means to the protection of nesting sites or single nests.

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(PDF) Extrem frühe Trauerschnäpper (Ficedula hypoleuca)

jann wübbenhorst

Their results do not show a uniform pattern but at least prove the complex-ity of predator-prey relationships and the environmental factors governing them. Sie wird unterstützt vom Deutschen Dachverband für Geoinformation e. Eine Arbeitsgruppe des Bereichs Tierökologie am Institut für Allgemeine und Spezielle Zoologie hat es sich zum Ziel gesetzt, ein Konzept für das verträgliche Miteinander dieser drei Bereiche zu erstellen. A konferencia anyagait egy kiadványában is megjelentetik, ahol - a magyar mellett - angol és német nyelvű lektorált cikkeket is közölnek. In the nineteenth and early twentieth centuries, farming-dominated cultural landscapes provided particularly good secondary habitats during a transitional phase of beginning moorland succession caused by drainage and significant decreases in sheep stocks Wübbenhorst and Prüter 2007. A magyarországi térinformatikai közösség tagjai számára vagy részéről közérdeklődést feltételező hírek, felhívások.

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CiteSeerX — 1WOODPECKERS AS INDICATORS FOR SUSTAINABLE FORESTRY? FIRST RESULTS OF A STUDY FROM LOWER SAXONY Running head: Woodpeckers as indicators for sustainable forestry?

jann wübbenhorst

In Braunegg-Ottenschlag the preconditions are most likely given altitude, waterlogged forests, little tourism. Differences in timing and extent of the crash were related at habitat type. Ebben figyelemreméltó Bartos Ferenc volt főtitkár visszatekintő beszámolója, dr. It is difficult to reconcile this value with the preferred world model even in the low-density case. Soil - Earth's living skin; j. New acquisitions August 2007 New serials: Biogeografía : Bulletin of the Systematic and Evolutionary Biogeographical Association. Table 1 Population categories, locations, code, country and population size for the historical sample sizes the approximate number of birds during the time period when the majority of birds where sampled are presented, see also Table S1 for details of the historical samples References for population sizes Glutz v.

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