Boerenlandvogels - WP

Auteur: Henk Tennekes

Recent Declines of Sacramento’s Purple Martins Worries Biologists

Henk Tennekes 25-11-2009 Geen reacties

Sacramento’s remnant population of the Purple Martin Progne subis, a swallow recognized as a state Species of Special Concern, declined

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Sag mir, wo die Vögel sind

Henk Tennekes 25-11-2009 Geen reacties

Naturschützer schlagen Alarm: Haussperling Passer domesticus, Pirol Oriolus oriolus und Uferschnepfe Limosa limosa werden immer seltener in unserem Land. Nach

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1693_Mosquito-Insect-Stamp-S-Sheet-Rwanda-MNH[1]

The explanation for farmland bird declines – Loss of insect food could be a major factor

Henk Tennekes 25-11-2009 Geen reacties

Research into the declines of some species of farmland birds have shown that there is no single reason, but that

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Comparative Losses of British Butterflies, Birds, and Plants and the Global Extinction Crisis

Henk Tennekes 25-11-2009 Geen reacties

There is growing concern about increased population, regional, and global extinctions of species. A key question is whether extinction rates

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Increased pesticide use has been a key cause of Grey Partridge decline

Henk Tennekes 25-11-2009 Geen reacties

Population declines in many farmland bird species have been documented during the last quarter of the 20th century in parts

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Linking agricultural practice to insect and bird populations: a historical study over three decades

Henk Tennekes 25-11-2009 Geen reacties

There is continuing debate about the impact of agricultural practices on farmland wildlife. In particular, it has been postulated that

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