Dutch Birding

Rüppells Gier

Gyps rueppelli  ·  Rüppell's Vulture

Datum 2 september 2021
Locatie Tarifa, Spanje
Fotograaf Arthur Geilvoet Arthur Geilvoet
Bekeken 5940 ×

Discussie

Max Berlijn

Max Berlijn
 ·  4 september 2021  17:27, gewijzigd 5 september 2021  22:49

Heel gaaf Arthur, in Senegal in Januari 2006 vonden we, behoudens een grote groep (100 samen met Vale Gieren) bij drie doodgereden Ezels, de soort nauwelijks. 

Eduard Sangster

Eduard Sangster
 ·  4 september 2021  21:24

Goed gedaan, mooie soort, zeker in de WP. 

Ed van Boheemen

Ed van Boheemen
 ·  5 september 2021  22:05

Netjes!!

Max Berlijn

Max Berlijn
 ·  15 oktober 2021  15:16

Toch ook steeds vaker in het WP theater..

Diedert Koppenol

Diedert Koppenol
 ·  15 oktober 2021  16:17, gewijzigd 15 oktober 2021  16:20

Toch blijft Witruggier, in tegenstelling tot Rüppels die zo langzamerhand jaarlijks wordt, wel echt een flinke knaller in Europa, zou voor zover ik weet het 11de geval zijn indien aanvaard.

Max Berlijn

Max Berlijn
 ·  14 november 2021  08:49

En weer een (of dezelfde?).

Edwin Russer

Edwin Russer
 ·  26 november 2023  10:59

Afgelopen donderdag een vogel in ItaIië. 

George Sangster

George Sangster
 ·  27 juni 2024  12:41

Onrubia, A, Torralvo, C, Morandini, V & Ferrer, M 2024. Rüppell’s Vulture (Gyps rueppelli): a new vulture species for Europe? Journal of Ornithology  165: 747–757.

The Rüppell's Vulture, formerly restricted to a strictly African distribution, has recently been classified as a Critically Endangered species worldwide. However, in recent decades, observations of the species in Europe, particularly in the south of Spain, have been on the rise. In this study, we conduct a diagnosis of the situation of this species in southern Europe through the analysis of the Sahel Precipitation Index (SPI) and Griffon Vulture autumn migration counts as quantitative measures, with the aim of identifying possible drivers of these changes and population trends. The analyses demonstrated that a number of Griffon Vultures during autumn passage through the Strait of Gibraltar, together with Sahel precipitation anomalies from the previous year, are the best predictors of the number of Rüppell's Vultures during autumn passage through the same strait in the following year, explaining 68.7% of the variance. The proportion of Griffon Vultures in the Sahel has markedly increased as populations of other vultures have declined. Under these circumstances, it seems more than likely that Rüppell's Vultures would be prone to moving to Europe, following Griffon Vultures. This effect has also been favored by increases in number of raining days and floods in the Sahel due to climate change, which can lead to escapes of Rüppell's Vultures outside their usual ranges. Under these circumstances, it appears likely that the Rüppell's Vulture will soon become a new species among European vultures.

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