نتایج جستجو برای: cormorant

تعداد نتایج: 329  

Journal: :Journal of the American Oriental Society 1932

2015
Christopher M. Somers Leanne M. Heisler Jennifer L. Doucette Victoria A. Kjoss Mark Brigham

Humans and colonial piscivorous birds are often perceived to be in conflict over shared aquatic habitats and fisheries resources in inland lakes. We examined angler perception of birds and the relative abundance of American white pelicans (Pelecanus erythrorhynchos), double-crested cormorants (Phalacrocorax auritus), western grebes (Aechmophorus occidentalis), and boats on two lakes in Saskatch...

Journal: :international journal of environmental research 2012
r. rahimi s.m. monavari m. karami m. shariat p. farshchi

breeding biology of the great cormorants phalacrocorax carbo sinensis is assessed in thesouthern coasts of the caspian sea, iran during the years 2008-2010. about 84 nests located on 63 trees wereexamined. nests were built on large trees located in abbas abad marsh, gilan province. initially, eggs werefound on first week of april and egg laying continued until the last week of may. clutch size ...

Journal: :Archives of Environmental Contamination and Toxicology 2018

Journal: :Ornis Hungarica 2023

Abstract The authors describe a fossil avian distal tibiotarsal epiphysis, remains of cormorant (Phalacrociracinae), differing in age and morphological characters from other cormorants. material comes sandy marine deposits the village Máriahalom north-western Hungary, together with 26 vertebrate species, mostly marine. fossiliferous deposit is established Late Oligocene, at beginning Chattian s...

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