Spring Bird Migration Phenology in Eilat, Israel

Yosef, Reuven; Markovets, Mikhail

doi:10.3897/zookeys.31.107

Cited by 10 publications

(7 citation statements)

References 16 publications

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“…In agreement with previous studies in Poland 85 and in Eilat, Israel 95 , we did not detect any change in the arrival timing of the barred warbler at the stopover site during spring migration. The arrival day of barred warbler was also independent of spatial and temporal availability of resources during the pre-migratory period (measured as EVI).…”

Section: Discussionsupporting

confidence: 93%

Limited flexibility in departure timing of migratory passerines at the East-Mediterranean flyway

Aharon‐Rotman

Perlman²,

Kiat

et al. 2021

Sci Rep

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The rapid pace of current global warming lead to the advancement of spring migration in the majority of long-distance migratory bird species. While data on arrival timing to breeding grounds in Europe is plentiful, information from the African departure sites are scarce. Here we analysed changes in arrival timing at a stopover site in Israel and any links to Enhanced Vegetation Index (EVI) on the species-specific African non-breeding range in three migratory passerines between 2000–2017. Differences in wing length between early and late arriving individuals were also examined as a proxy for migration distance. We found that male redstart, but not females, advanced arrival to stopover site, but interestingly, not as a response to EVI phenology. Blackcap and barred warbler did not shift arrival timing significantly, although the arrival of blackcap was dependent on EVI. Barred warbler from the early arrival phase had longer wings, suggesting different populations. Our study further supports the existence species-specific migration decisions and inter-sexual differences, which may be triggered by both exogenous (local vegetation condition) and endogenous cues. Given rapid rate of changes in environmental conditions at higher latitudes, some migrants may experience difficulty in the race to match global changes to ensure their survival.

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Section: Discussionsupporting

confidence: 93%

Limited flexibility in departure timing of migratory passerines at the East-Mediterranean flyway

Aharon‐Rotman

Perlman²,

Kiat

et al. 2021

Sci Rep

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“…The changes in phenology we observed in the steppe eagle follow changes in very early passerines (Yosef & Markovets 2009), which may be an important part of the diet of migrating eagles (Yosef 1996). However, we do not believe that lack of food during migration could be so strong a driver to advance the date of migration so much (44 d over 15 yr for the first passage bird).…”

Section: Discussionmentioning

confidence: 59%

Rapid advances in the timing of the spring passage migration through Israel of the steppe eagle Aquila nipalensis

Zduniak¹,

Yosef²,

Sparks³

et al. 2010

Clim. Res.

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We examined phenological change in the spring migratory passage of the predatory steppe eagle Aquila nipalensis from 1977 to 2008. Data were collected at Eilat, Israel, a globally important site for migrating raptors. Changes in the observation dates of spring passage migration were examined using correlation and regression analyses to assess changes over time as well as potential relationships with temperature and with the Indian Ocean Dipole, an index of climate in the wintering area. Over the study period, the number of recorded steppe eagles decreased significantly, as did the proportion of juveniles. Despite the population decrease there was a rapid advance in first spring passage date. Although changes in passage dates were related to environmental conditions in wintering and en-route areas, we suggest that one possible additional reason for such a rapid advance is due to increasing competition between individuals for breeding territories due to dwindling habitats. In addition, changes to some aspects of the passage distribution may be a consequence of a changing age structure.

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“…Another asset of the 'Arava is its hosting much research and education. In situ institutes include the 'Arava Institute (Shanas et al 2006;Kalman 2013), bird study centres (Leshem et al 2009) at Hazeva (Zahavi 1990;Katsir 1995), Lotan and Elat (Yosef and Tryjanowski 2009;Yosef and Markovets 2009) and the Israel Nature and Parks Authority's Hai-Bar acclimation station. Many student theses investigate the 'Arava (e.g.…”

Section: Implications For Conservationmentioning

confidence: 99%

Reptile distribution may identify terrestrial islands for conservation: the Levant’s ‘Arava Valley as a model

Seifan

Zohar

Werner

2016

Journal of Natural History

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Widely accepted major criteria for biodiversity hotspots that deserve conservation include species richness, endemism and threat. Proving that a taxon is endemic to a given area is more difficult, and therefore expensive, with animals than with plants because of the difficulty to prove absence outside the known distribution. Seeking a cost-efficient practical method to show animal endemism while funds necessary for conventional demonstration of endemism are lacking, we argued that when the known distribution of a suspected endemic taxon coincides with an ecogeographically isolated area, e.g. island, its exclusivity to that area is more credible. We selected a model site containing suspected endemics, the 'Arava depression (altitude -400-0 m) between arid southern Israel and southern Jordan. A search of the literature and collections found at least 23 animal taxa endemic to the 'Arava, to the adjacent Dead Sea basin sharing the depression, or to both. We assessed the level of isolation of the 'Arava depression by statistically analysing the geographical distribution of taxa (species or subspecies) of one selected well researched model group, Squamata (lizards and snakes). In northern Israel and Jordan the squamate faunas of the two countries are very similar. In contrast in the south where the 'Arava intervenes, the two faunas greatly differ. The 'Arava both constitutes a partial barrier and is partly isolated. Hence its apparent endemics are likely real endemics, inviting conservation of the area. The more so since the 'Arava is also an arena of much research and education. Our methodology may serve worldwide to identify semi-isolated terrestrial areas for conservation.

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Spring Bird Migration Phenology in Eilat, Israel

Cited by 10 publications

References 16 publications

Limited flexibility in departure timing of migratory passerines at the East-Mediterranean flyway

Limited flexibility in departure timing of migratory passerines at the East-Mediterranean flyway

Rapid advances in the timing of the spring passage migration through Israel of the steppe eagle Aquila nipalensis

Reptile distribution may identify terrestrial islands for conservation: the Levant’s ‘Arava Valley as a model

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