Preliminary results on the wintering of the Dalmatian Pelican,<i>Pelecanus crispus</i>, in Turkey

Crivellì, Alain J.; Mitchev, Taniu; Catsadorakis, G.; Pomakov, V.

doi:10.1080/09397140.1991.10637598

Cited by 13 publications

(18 citation statements)

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“…The species is believed to have bred at approximately 20-25 wetlands in Turkey. During the 1960s, some breeding colonies started to disappear, mainly due to drainage of wetlands (KUMERLOEVE 1964), and this decline continued severely between the 1970s and the end of the 1980s (CRIVELLI et al 1991). In the 1970s and 1980s the population was estimated to be between 90 and 200 pairs (CRIVELLI & VIZI 1981).…”

Section: Conclusion and Discussionmentioning

confidence: 97%

“…Likewise, the wintering population has also increased from 352 up to 2,344 individuals. Turkey, mainly western Anatolia, has always been an important wintering area for Dalmatian Pelicans (CRIVELLI et al 1991). Ringing recoveries of Dalmatian Pelicans with plastic, coloured, engraved rings suggest that a large part of the wintering population of Dalmatian Pelicans in western Anatolia are birds from Greece, Bulgaria and Romania (CRIVELLI et al 1991).…”

Section: Conclusion and Discussionmentioning

confidence: 99%

“…Turkey, mainly western Anatolia, has always been an important wintering area for Dalmatian Pelicans (CRIVELLI et al 1991). Ringing recoveries of Dalmatian Pelicans with plastic, coloured, engraved rings suggest that a large part of the wintering population of Dalmatian Pelicans in western Anatolia are birds from Greece, Bulgaria and Romania (CRIVELLI et al 1991). Further indirect evidence for this assumption is the significant increase in the numbers of wintering Dalmatian Pelicans in Turkey which is certainly due to the strong increase in the breeding numbers of Dalmatian Pelicans nesting at Lake Mikri Prespa, north-western Greece.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

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Status and development of the population of the globally threatened Dalmatian Pelican,Pelecanus crispus, in Turkey

Onmuş

Siki

Sarigul

et al. 2011

Zoology in the Middle East

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The Dalmatian Pelican, Pelecanus crispus (Bruch, 1832), used to be a widespread breeding species in Turkey in the past. Until the 1990s, approximately 473-763 pairs were breeding at 20-25 sites. Of these, 53-59% have been lost due to drainage of wetlands, 17-19% due to direct persecution, 16-22% due to both drainage and persecution, and 6-8% due to water level increase. Currently there are only five active breeding colonies: Gediz Delta, Manyas Lake, Büyük Menderes Delta, Aktaú Lake and IúÕklÕ Lake. The colony at IúÕklÕ Lake was discovered in 2010 and comprises 6 pairs. Since 2000, the total breeding population of Dalmatian Pelicans increased moderately from 220-250 to 277-341 pairs. Likewise, the wintering population has also increased from 352 up to 2,344 individuals, which seems to be linked with the increase in the breeding population in the region. Nevertheless, the population size still renders the species susceptible to the risks affecting small populations.

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Section: Conclusion and Discussionmentioning

confidence: 97%

Section: Conclusion and Discussionmentioning

confidence: 99%

Section: Conclusion and Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Status and development of the population of the globally threatened Dalmatian Pelican,Pelecanus crispus, in Turkey

Onmuş

Siki

Sarigul

et al. 2011

Zoology in the Middle East

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“…Large parts of the wintering population in western Anatolia are comprised of birds from Greece, Bulgaria and Romania (Crivelli et al 1991a). …”

Section: Great White Pelican Breeding Datamentioning

confidence: 99%

“…During the 1960s and 1970s many colonies of both species vanished, mainly due to drainage of wetlands, disturbance, persecution, overexploitation of fish stocks, pesticides and electric power lines (Crivelli & Vizi 1981, Crivelli & Schreiber 1984, Crivelli et al 1991a, 2000, Crivelli 1996, Handrinos & Akriotis 1997, Onmuş et al 2011). …”

Section: Introductionmentioning

confidence: 99%

Current status of the Dalmatian pelican and the great white pelican populations of the Black Sea/Mediterranean flyway

Catsadorakis¹,

Onmuş²,

Bugariu³

et al. 2015

Endang. Species. Res.

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The Dalmatian pelican (DP) Pelecanus crispu s and the great white pelican (GWP) Pelecanus onocrotalus are listed as 'Vulnerable' and 'Least Concern', respectively, in the IUCN Red List. We present an updated estimation of the Black Sea / Mediterranean flyway population status of both species, based on data provided by experts working in all 7 countries of the region where pelicans breed and/or overwinter, who came together at the 1st Workshop on Pelican Research and Conservation in Prespa, Greece. The DP breeding population in the Black Sea and Mediterranean countries increased from 1730−2105 pairs in the years 2000−2010 to 2154−2437 pairs in 2011−2012. Approximately 40% of the Palaearctic breeding population of GWP occurred in Southeast Europe and Turkey. In 2011−2012 the GWP population in this region was estimated to be 4702−5175 pairs, and has remained more or less stable during the last decade. Although all the breeding sites for both species are in protected areas, disturbance at nesting places was considered to be the main threat. Direct persecution and electric power lines still cause occasional problems. In deltaic lagoons, erosion and inundation of nesting sites cause breeding failures in DPs, while in inland wetlands large water level fluctuations are a widespread problem. Decrease of fish stocks is a threat, especially in coastal areas. Many stop-over wetlands along GWP migration routes between Southeast Europe and Africa have been seriously degraded or have disappeared, resulting in serious implications for their populations. Conservation needs are listed, but further research is recommended for both species.

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Spatially correlated environmental factors drive synchronisation in populations of the Dalmatian Pelican

et al. 2012

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Spatial synchrony in population dynamics has been documented recently across a range of taxa, and a number of hypotheses about the mechanisms driving spatial synchrony and the consequences of this phenomenon for the persistence of populations have emerged. Spatial environmental covariance is one of the principal factors influencing this synchrony on a large scale. However, most studies focus on population abundances, and little evidence exists on the spatial synchrony of demographic parameters. We used a 15-year dataset from two populations of a vulnerable bird species, the Dalmatian Pelican (Pelecanus crispus), to identify local and global environmental factors that cause population synchrony. We show that survival rates were temporally synchronised between the studied populations and that a large part ([50 % for both populations) of this covariation was driven by local environmental conditions. Several components of the North Atlantic Oscillation index were correlated with local climatic conditions, but not all of these components can be used as informative proxies for future variation in survival. We also present evidence that an individual's future survival can be strongly influenced by the conditions occurring during the early period of its life. Environmental factors such as water level and food availability had similar influences on breeding success and juvenile survival. Juvenile survival was lower during dry years and years of low food availability. This finding indicated that intraspecific competition may act as a limiting factor for species demography, especially in large populations. Estimating the strength of synchrony is important and should be considered in population and metapopulation analyses and in relationship to conservation measures.

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Preliminary results on the wintering of the Dalmatian Pelican,Pelecanus crispus, in Turkey

Cited by 13 publications

References 1 publication

Status and development of the population of the globally threatened Dalmatian Pelican,Pelecanus crispus, in Turkey

Status and development of the population of the globally threatened Dalmatian Pelican,Pelecanus crispus, in Turkey

Current status of the Dalmatian pelican and the great white pelican populations of the Black Sea/Mediterranean flyway

Spatially correlated environmental factors drive synchronisation in populations of the Dalmatian Pelican

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