Uses of GBIF in scientific research

Peer-reviewed research citing GBIF as a data source, with at least one author from Turkey.
For all researches, please visit our "Peer-reviewed publications" page.

List of publications

  • Perktaş U, Peterson A, Dyer D (2016)

    Integrating morphology, phylogeography, and ecological niche modeling to explore population differentiation in North African Common Chaffinches

    Journal of Ornithology 1-13.

    Diagnosing distinct evolutionary taxa requires careful assessment of genetic, morphological, ecological, and behavioral variation within and among populations. In this study, data on phenotype (mensural and plumage coloration), genotype (mitochondrial DNA control-region sequences), and distributional projections derived from ecological niche models, were used to investigate population differentiation of North African Common Chaffinches. Results showed substantial genetic variation among populations, mostly (~56 %) distributed between Libyan populations and other North African populations, rather than within populations. Isolation-by-distance analysis indicated severely restricted gene flow between populations. Historical demographic analyses indicate that population expansion began before the Last Glacial Maximum, which is consistent with ecological niche model paleoprojections; interestingly, differentiation of the Libyan population (Fringilla coelebs harterti) apparently did not take place under the last glacial conditions. Hence, although its taxonomic status must await robust testing using multilocus DNA data, this population is an important element in the conservation of bird diversity in North Africa.

    Keywords: Fringilla coelebs, Fringilla coelebs harterti, Isolation by distance, Maghreb, Mitochondrial DNA, Population genetics

  • Pârâu L, Strubbe D, Mori E, Menchetti M, Ancillotto L, Kleunen A et al. (2016)

    Rose-ringed Parakeet Populations and Numbers in Europe: A Complete Overview

    The Open Ornithology Journal 9(1) 1-13.

    Purpose: Alien species are considered one of the major causes contributing to the current loss of biodiversity. Over the past few decades, a large and increasing number of alien species have become invasive in many parts of the world. Their impacts range from competition for resources with native species to damage of urban infrastructure. In Europe, over a thousand alien species are now established, of which 74 are birds. Among 12 established alien parrot species in Europe, Introduction: The Rose-ringed Parakeet (RRP) Psittacula krameri (Scopoli, 1769) is the most abundant and widespread. Since the 1960's, RRPs have established more than 100 wild populations in several European countries. For Western Europe, long-term demographic data indicate the species has grown considerably in number, although some populations have failed to persist. Data: Is scarce and dispersed for countries in Central, Eastern and Northern Europe. Therefore, here we present detailed demographic data of RRP for 90 populations in 10 European countries. Furthermore, we present information on the status of the species in another 27 European countries, for which previously no data were published. Conclusion: Our synthesis reveals a positive demographic trend across the continent, although locally, some populations appear to have reached carrying capacity.

    Keywords: Demography, Europe, Invasive alien species, Parrots, Population, Psittaciformes

  • Borges L, Sivrikaya H, Cragg S (2014)

    First records of the warm water shipworm Teredo bartschi Clapp, 1923 (Bivalvia, Teredinidae) in Mersin, southern Turkey and in Olhão, Portugal

    Bioinvasion Records 3(1) 25-28.

    Bivalves of the family Teredinidae are among the most destructive wood-boring species in the sea. We report the first occurrences of the warm-water shipworm Teredo bartschi in Mersin, Turkey, and Olhão, Portugal. The colonisation of the site in Mersin is likely to have occurred by rafting adults originating from the Red Sea, which passed through the Suez Canal (lessepsian migrants). T. bartschi might have been introduced in Olhão Harbour, Portugal, either by rafting adults with larvae transported by currents or by larvae transported by ships in ballast water. These seem to be the first published records of established T. bartschi populations in the Mediterranean and in northeast Atlantic.

    Keywords: mediterranean sea, northeast atlantic ocean, shipworms, teredinids, teredo bartschi

  • Ihlow F, Ahmadzadeh F, Ghaffari H, Taşkavak E, Hartmann T, Etzbauer C et al. (2014)

    Assessment of genetic structure, habitat suitability and effectiveness of reserves for future conservation planning of the Euphrates soft-shelled turtle Rafetus euphraticus (Daudin, 1802)

    Aquatic Conservation: Marine and Freshwater Ecosystems Forthcoming.

    1. The endangered Euphrates soft-shelled turtle, Rafetus euphraticus, is endemic to the Mesopotamian River Basin in the Middle East. Within recent decades, populations of this aquatic species have been heavily depleted and severely fragmented owing to habitat alteration and destruction by drainage and hydroelectricity dam constructions. Continuing habitat loss and fragmentation are considered the main drivers for the population decline of R. euphraticus. 2. Intraspecific genetic variability was investigated using two mitochondrial gene fragments for 31 specimens covering most of the distributional range of the species. Habitat suitability models were computed using a combination of bioclimatic and remote sensing variables as environmental predictors to assess habitat suitability, habitat fragmentation and coverage by designated protected areas across the range of R. euphraticus. 3. Beyond single substitutions in two sequences, no significant genetic variation could be detected in R. euphraticus. Models show habitat suitability to be high throughout the range of the species, although only a fraction is currently covered by reserves. Habitat suitability and coverage of reserves is highly variable among countries. South-western Iran appears to be ofmajor importance for future conservation strategies. Suitabilitymodels are in concordance with the habitat selection patterns of R. euphraticus. 4. The existing reserve system is considered insufficient and has to be significantly improved in order to sustain viable populations of R. euphraticus. To counter continuing fragmentation and alteration by dam construction, future conservation measures should focus on highlighted priority areas.

    Keywords: conservation planning, genetic variation, habitat fragmentation, habitat suitability modelling, protected areas

  • Perktaş U, Gür H, Sağlam , Quintero E (2014)

    Climate-driven range shifts and demographic events over the history of Kruper's Nuthatch Sitta krueperi

    Bird Study 1-15.

    Capsule This study is the first ever documented evidence of an interglacial refugium during the Last Interglacial for birds in Anatolia and suggests the need of a re-examination of the effects of the Last Interglacial on the geographic distribution and genetic structure of species.Aims We tested whether, in accordance with the ‘refugia within refugia’ model, multiple refugia existed for Kruper's Nuthatch Sitta krueperi during the Last Glacial Maximum or the species survived along the coastal belt of Anatolia through the Late Quaternary glacial–interglacial cycles.Methods An ecological niche model was developed to predict the geographic distribution of Kruper's Nuthatch under reconstructed past (the Last Interglacial and the Last Glacial Maximum), present, and projected future bioclimatic conditions. Also, robust coalescent-based analyses were used to assess demographic events over the history of Kruper's Nuthatch.Results Kruper's Nuthatch survived the Last Glacial Maximum almost along the coastal belt of ...

    Keywords: conservation planning, genetic variation, habitat fragmentation, habitat suitability modelling, protected areas

  • Ahmadzadeh F, Flecks M, Carretero M, Böhme W, Ilgaz C, Engler J et al. (2013)

    Rapid lizard radiation lacking niche conservatism: ecological diversification within a complex landscape

    Journal of Biogeography 40(9) 1807-1818.

    Keywords: anatolia, ancestral niche reconstruction, eastern mediterranean, lacerta, lacerta pamphylica, lacerta trilineata, lacertid lizards, media, niche divergence, niche overlap, species distribution model

  • Gür H (2013)

    The effects of the Late Quaternary glacial-interglacial cycles on Anatolian ground squirrels: range expansion during the glacial periods?

    Biological Journal of the Linnean Society 109(1) 19-32.

    The present study aimed to understand how Anatolian ground squirrels, Spermophilus xanthoprymnus (Bennett, 1835), have responded to global climate changes through the Late Quaternary glacial–interglacial cycles. Accord- ingly, ecological niche modelling was used, together with molecular phylogeography. Using species occurrence data compiled from field observations and relevant sources and the maximum entropy machine learning algorithm in MAXENT, an ecological niche model was developed to predict the potential geographical distribution of S. xanthoprymnus under reconstructed past (the Last Interglacial, approximately 130 000–116 000 years ago and the Last Glacial Maximum, 21 000 years ago) and present (1950–2000) bioclimatic conditions. In addition, using cytochrome b mitochondrial DNA sequences deposited in GenBank and the Bayesian skyline plot in BEAST, demographic events (population fluctuations) were further assessed over the history of Anatolian ground squirrels. Combined ecological niche modelling and molecular phylogeography revealed that S. xanthoprymnus, itself also a temperate (mid-latitude) species, has responded to global climate changes through the Late Quaternary glacial– interglacial cycles in a fashion converse to that of most temperate (mid-latitude) species: its range expanded rather than contracted during the glacial periods and contracted rather than expanded during the interglacial periods. In other words, Anatolian ground squirrels have been in refugia during the interglacial periods, suggesting that the classical paradigm of glacial range contraction and interglacial range expansion for temperate species may not be as general as previously assumed.

    Keywords: anatolia, ancestral niche reconstruction, eastern mediterranean, lacerta, lacerta pamphylica, lacerta trilineata, lacertid lizards, media, niche divergence, niche overlap, species distribution model

  • Mestre A, Aguilar-Alberola J, Baldry D, Balkis H, Ellis A, Gil-Delgado J et al. (2013)

    Invasion biology in non-free-living species: interactions between abiotic (climatic) and biotic (host availability) factors in geographical space in crayfish commensals (Ostracoda, Entocytheridae)

    Ecology and Evolution 3(16) 5237-5253.

    In invasion processes, both abiotic and biotic factors are considered essential, but the latter are usually disregarded when modeling the potential spread of exo- tic species. In the framework of set theory, interactions between biotic (B), abi- otic (A), and movement-related (M) factors in the geographical space can be hypothesized with BAM diagrams and tested using ecological niche models (ENMs) to estimate A and B areas. The main aim of our survey was to evaluate the interactions between abiotic (climatic) and biotic (host availability) factors in geographical space for exotic symbionts (i.e., non-free-living species), using ENM techniques combined with a BAM framework and using exotic Entocythe- ridae (Ostracoda) found in Europe as model organisms. We carried out an extensive survey to evaluate the distribution of entocytherids hosted by crayfish in Europe by checking 94 European localities and 12 crayfish species. Both exotic entocytherid species found, Ankylocythere sinuosa and Uncinocythere occidentalis, were widely distributed in W Europe living on the exotic crayfish species Pro- cambarus clarkii and Pacifastacus leniusculus, respectively. No entocytherids were observed in the remaining crayfish species. The suitable area for A. sinuosa was mainly restricted by its own limitations to minimum temperatures in W and N Europe and precipitation seasonality in circum-Mediterranean areas. Uncinocy- there occidentalis was mostly restricted by host availability in circum-Mediterra- nean regions due to limitations of P. leniusculus to higher precipitation seasonality and maximum temperatures. The combination of ENMs with set the- ory allows studying the invasive biology of symbionts and provides clues about biogeographic barriers due to abiotic or biotic factors limiting the expansion of the symbiont in different regions of the invasive range. The relative importance of abiotic and biotic factors on geographical space can then be assessed and applied in conservation plans. This approach can also be implemented in other systems where the target species is closely interacting with other taxa.

    Keywords: bam diagrams, biological invasions, ecological niche models, host availability

  • Tufan-Çetin , Sümbül H (2011)

    Lichens of the Köprülü Canyon National Park in Turkey

    Mycotaxon(May) 1-25.

    This is the first comprehensive survey on lichens of the Köprülü Canyon National Park. Totally 1266 lichen samples were collected during the field studies between June 2006 and August 2008 in Köprülü Canyon National Park. 217 lichen taxa which belong to 8 orders, 28 families and 76 genera were determined from the research area. Of the determined lichens 203 taxa were recorded for the first time in the national park. In addition 67 taxa are new records for Antalya and 7 taxa for Turkey.

    Keywords: lichen biodiversity, lichenized fungi, new records