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Öğe Birds of Hasankeyf (South-eastern Anatolia, Turkey) Under the Threat of a Big Dam Project(Natural Areas Assoc, 2012) Biricik, Murat; Karakas, RecepThe birds at the vicinity of the ancient town Hasankeyf (South-eastern Turkey) have been documented by a systematic survey spanning nearly one and a half years and also by casual observations afterward. A total of 133 bird species have been detected in the study area, about 60% of which were observed in spring. Nearly two-thirds of the bird species are native or summer migrants and 72 are at least potential breeders in the area. Twenty-one species of diurnal raptors were detected. Five globally and 25 regionally threatened species have been recorded. Main habitats used are the river and riparian zone, shrub, steppe, and steep rocky mountain; and around 33% of the breeding species use rocky slopes and cliffs while 11% use riverine formations for their nesting. The area still has special natural habitats for birds, whose breeding are largely dependent on rocks which form steep walls on the river. In spite of all this richness, the wildlife in the area is strongly threatened by a highly debated big dam project, which is part of the most comprehensive regional development project of Turkey.Öğe Birds of Mount Nemrut National Park Area, Turkey(Verlag der Oesterreichischen Akademie der, 2018) Karakaş, Recep; Biricik, MuratBird species diversity at Mount Nemrut (Adıyaman province, south-eastern Turkey) and in the surrounding areas was studied during the period 2009–2010. Data was collected using the point-count method at predefined observation sites. Birds of 107 different species were recorded, of which 20 were certainly breeding, 17 were probably breeding, and 29 were possibly breeding in the study area. Including species reported by other sources, a total of 160 bird species has so far been detected in the Mount Nemrut area, while the white-throated dipper was recorded for the first time. Diversity was calculated by using the Shannon-Wiener diversity index. Highest diversities were detected in woodland habitats (including oak groves), rocky areas and woodland habitats. Bird diversity showed peaks corresponding to spring and autumn passage migrations, and bird numbers were highest in mid-winter. Although part of Mount Nemrut has been declared one of Turkey’s key biodiversity areas and has already been given the status of a National Park, threats occur, notably the harmful effects of mass tourism and illegal hunting, because of ineffective protection measures. Better knowledge of local avifauna and its habitat requirements may help to ensure better protection of this unique area.Öğe BLACK KITES (MILVUS MIGRANS) WINTER IN SOUTHEASTERN ANATOLIA, TURKEY(Raptor Research Foundation Inc, 2011) Biricik, Murat; Karakas, Recep[Abstract Not Available]Öğe Changes in eggshell thickness, shell conductance and pore density during incubation in the Peking Duck (Anas platyrhynchos f. dom.)(Birdlife Finland, 2006) Balkan, Mahmut; Karakas, Recep; Biricik, MuratShell thickness, shell conductance (water-vapour conductance), and pore density are important properties of eggs that influence the success of embryonic development. We determined these properties in the blunt end, the equator and the sharp end of both unincubated and hatched eggs of Peking ducks. In unincubated eggs, we found that shell thickness increased from the blunt end to the sharp end, water-vapour conductance was the highest in the blunt region and lowest in the equatorial region. Analysis of hatched eggs showed that during incubation the equatorial and sharp end regions became thinner (due to calcium uptake by the embryo), resulting in nearly similar eggshell thickness in all regions after hatching. Pore density and shell conductance, however, increased during incubation both in the equator and blunt end. Our results suggest that the increase in shell conductance during incubation is in this species due to an increase in pore density and not due to thinning of the eggshell.Öğe Description of an Euphrates Softshell Turtle (Rafetus euphraticus) nest from the Tigris River (SE Turkey)(Deutsche Gesellschaft Herpetologie Terrarienkunde E V, 2011) Biricik, Murat; Turga, SemsettinWe present a first description of a single nest of the endangered Euphrates softshell turtle Rafetus euphraticus from the Tigris River in south-eastern Anatolia on 13(th) June 2009. The nest was excavated 4.12 m from the shoreline on a uniformly rising sand slope, reaching 1 m above the water table. The distance from the surface to the nest chamber was about 13 cm. Eggs were spherical, 29.47 mm +/- 0.29 in diameter, and weighed 13.6 g +/- 0.34 (n = 32). Sand grain size was predominantly (96.25%) 0.149 to 0.42 mm. The species is seriously threatened in this region by dam projects and routine sand mining.Öğe First record of Junonia orithya (Linnaeus, 1758) (Lepidoptera: Nymphalidae) in Turkey(Max Kasparek Verlag, 2011) Biricik, Murat[Abstract Not Available]Öğe Main egg characteristics in the peking duck (Anas platyrhynchos f. dom.)(Dicle Üniversitesi Ziya Gökalp Eğitim Fakültesi, 2008) Balkan, Mahmut; Biricik, MuratMain egg characteristics of the unincubated Peking duck eggs (Anas platyrhynchos f. dom.) such as egg mass, egg elongation, eggshell thickness, eggshell mass, eggshell proportion in egg content, egg density, egg volume, total pore number, content mass, water proportion in egg content, albumin mass, albumin proportion in egg mass, water proportion in albumin content, yolk mass, yolk proportion in egg mass, yolk proportion in egg content, water proportion in yolk were investigated. The findings were compared with those of reported in literature concerning the eggs of domestic duck and other forms of domestic duck and mallard, and with values estimated from equations given for the precocial bird species. We observed that, while some of our obtained values for main egg characteristics of the Peking duck eggs were similar to both values of Domestic duck / Mallard and the predicted values from equations for precocial species, the other values different considerably. The reason of these differentiations may be genetically or environmental conditions.Öğe The Namaqua Dove Oena capensis (L., 1766) (Columbidae) Spreads Further North: A New Record from Turkey(Inst Zoology, Bas, 2018) Biricik, Murat; Karakas, Recep; Turga, SemsettinAn observation of a single female Namaqua dove Oena capensis (L.) in the late spring of 2015 from South-eastern Turkey is reported. This constitutes one of the most northern locations of the species currently known, where apparently free ranging birds have been spotted. No sign of breeding could be identified. The landscape properties of the detection site are consistent with those described for former findings in the Middle East. The records in several countries in the region suggest a northern expansion of the species' geographical range of about 28.8 km/year across the Arabian Peninsula.Öğe New breeding sites of the Black-winged Kite (Elanus caeruleus) in Turkey (Aves: Falconiformes)(Taylor & Francis Ltd, 2017) Karakas, Recep; Biricik, Murat[Abstract Not Available]Öğe Observations on a breeding population of Neurergus strauchii barani Oz, 1994 (Caudata: Salamandridae) on Kubbe Mountain, Turkey(Deutsche Gesellschaft Herpetologie Terrarienkunde E V, 2010) Bogaerts, Serge; Pasmans, Frank; Sparreboom, Max; Biricik, Murat[Abstract Not Available]Öğe Observations on a newly detected breeding site of bonelli’s eagle, hieraaetus fasciatus, in south-eastern anatolia(2003) Kılıç, Ahmet; Karakaş, Recep; Biricik, MuratIn spring 2003, a pair of Bonelli’s Eagle (Hieraaetus fasciatus) reared a young near Hasankeyf, Batman province, Turkey. The site shows very similar habitat properities to the only known breeding site in the region. Observations on the nest structure, feeding, courtship dancing flight, and on interspecific conflicts are described.Öğe On the Occurrence of White-headed Duck Oxyura leucocephala (SCOPOLI, 1769) in South-eastern Anatolia, Turkey(Inst Zoology, Bas, 2011) Biricik, Murat; Karakas, RecepDuring their occasional observations at wetlands in the region spanning last two decades, the authors detected for first time small groups of White-headed Duck Oxyura leucocephala in a single day at two distinct dam reservoirs. As there was another single record previously, the scarcity of reports indicates that the species could be considered as a relatively rare migrant for SE Turkey, probably on their route between the breeding areas in northern parts of the country or other northern countries, and Middle East as wintering area. The appearance of birds and general properties of the habitat have been discussed.Öğe On the status and distribution of the Ferruginous Duck Aythya nyroca in Southeast Anatolia, Turkey(Univ Oradea Publ House, 2018) Karakas, Recep; Biricik, MuratThe Ferruginous Duck (Aythya nyroca) is globally threatened duck species, and in Turkey the population is in decline. Records of the species were obtained during field excursions carried out in different localities of Southeast Anatolia between 1998 and 2015. These data were evaluated to gain a clearer understanding about the local status of the species. Five areas arose as possible breeding sites, while Karkamis Dam is the most significant wetland both for breeding and the wintering of the species. The main threats are the alteration of wetlands, reed destruction, illegal hunting, and aquatic pollution.Öğe PEKİN ÖRDEĞİNİN (Anas platyrhynchos f. dom.) DÖLLENMİŞ VE DÖLLENMEMİŞ YUMURTALARINDA KULUÇKA SÜRESİNCE GÖRÜLEN KÜTLE KAYBI(Dicle Üniversitesi, 2008) Balkan, Mahmut; Biricik, MuratPekin ördeğinin (Anas platyrhynchos f. dom.) döllenmiş ve döllenmemiş yumurtalarında, laboratuvar koşullarındaki kuluçka sırasında su kaybıyla meydana gelen kütle azalması tespit edilerek, daha önce yapılan çalışmalardan ve bağıntılardan elde edilen sonuçlarla karşılaştırılmıştır. 58 döllenmiş ve 18 döllenmemiş olmak üzere toplam 76 adet yumurtanın kuluçka boyunca gösterdikleri toplam göreceli kütle kaybı, döllenmiş yumurtalarda taze kütlenin %11,48’i ve döllenmemişlerde %8,87’i olarak farklılık göstermiştir. Elde edilen değerlerin genel olarak kuş yumurtalarından beklenen değerlerle uyumlu olduğu görülmüştür. Bir önceki güne göre kaybedilen kütlenin, döllenmiş yumurtalarda —özellikle kuluçkanın ikinci yarısında— günden güne arttığı, döllenmemiş yumurtalarda ise yaklaşık olarak aynı kaldığı belirlenmiştir. Bu artışın, yumurta kabuğundaki incelmeden çok, artan metabolik faaliyet ile birlikte kabuktaki gözenek sayısı artışından kaynaklandığı ileri sürülmektedir. Bu çalışmada elde edilen değerlerin literatürdeki denklemlerden elde edilen değerler ile farklılık gösterdiği tespit edilmiştir. Bu farklılığa tür içi/türler arası farklı yumurta içeriği oranlarının ve/veya kabuk iletimindeki farklılıkların ve/veya farklı ısı, nem, atmosfer basıncı gibi kuluçka ortam koşullarının neden olmuş olabileceği ileri sürüldü.Öğe Pekin ördeğininin (Anas platyrhynchos f. dom.) döllenmiş ve döllenmemiş yumurtalarında kuluçka süresince görülen kütle kaybı(Dicle Üniversitesi Ziya Gökalp Eğitim Fakültesi, 2008) Balkan, Mahmut; Biricik, MuratPekin ördeğinin (Anas platyrhynchos f. dom.) döllenmiş ve döllenmemiş yumurtalarında, laboratuvar koşullarındaki kuluçka sırasında su kaybıyla meydana gelen kütle azalması tespit edilerek, daha önce yapılan çalışmalardan ve bağıntılardan elde edilen sonuçlarla karşılaştırılmıştır. 58 döllenmiş ve 18 döllenmemiş olmak üzere toplam 76 adet yumurtanın kuluçka boyunca gösterdikleri toplam göreceli kütle kaybı, döllenmiş yumurtalarda taze kütlenin %11,48’i ve döllenmemişlerde %8,87’i olarak farklılık göstermiştir. Elde edilen değerlerin genel olarak kuş yumurtalarından beklenen değerlerle uyumlu olduğu görülmüştür. Bir önceki güne göre kaybedilen kütlenin, döllenmiş yumurtalarda —özellikle kuluçkanın ikinci yarısında— günden güne arttığı, döllenmemiş yumurtalarda ise yaklaşık olarak aynı kaldığı belirlenmiştir. Bu artışın, yumurta kabuğundaki incelmeden çok, artan metabolik faaliyet ile birlikte kabuktaki gözenek sayısı artışından kaynaklandığı ileri sürülmektedir. Bu çalışmada elde edilen değerlerin literatürdeki denklemlerden elde edilen değerler ile farklılık gösterdiği tespit edilmiştir. Bu farklılığa tür içi/türler arası farklı yumurta içeriği oranlarının ve/veya kabuk iletimindeki farklılıkların ve/veya farklı ısı, nem, atmosfer basıncı gibi kuluçka ortam koşullarının neden olmuş olabileceği ileri sürüldü.
