Results 101 to 110 of about 4,498 (242)

Recompte hivernal d'aus aquàtiques i limícoles a les Balears, gener 2008 [PDF]

open access: yes
Winter census of Wildfowl and Shorebirds in the Balearic Islands, January 2008. Results of the winter census of Wildfowl and Shorebirds in the Balearics in 2008 are presented.
Escandell, Raül   +3 more
core  

The Karyotypic Evolution in Two Pelecaniformes Species (Aves)

open access: yesCaryologia, 1975
SUMMARYPelecanus onocrotalus L. has the diploid number 66 and the fundamental number 82, and Phalacrocorax pygmaeus the diploid number 70 and fundamental number 72. The heterosomes Z are metacentric in both species and the W heterosomes are telocentric.The pelican display a typic avian karyotype with « shared » chromosomes, like the ancestral reptilian
openaire   +1 more source

REGISTRO INUSUAL DE LA GARZA CUCHARÓN COCHLEARIUS COCHLEARIUS (PELECANIFORMES: ARDEIDAE) EN EL OCCIDENTE DEL ECUADOR

open access: yes, 2019
La Garza Cucharón Cochlearius cochlearius es una ave rara que habita en riberas de cuerpos de agua desde México hasta Argentina. En Ecuador es un ave rara y localista que se distribuye principalmente en la región amazónica. Al occidente existen registros
L. Camacho
semanticscholar   +1 more source

Concentrations of some heavy and trace metals in serum and brain of five species of wild vertebrates from Nigeria

open access: yesFolia Veterinaria
Environmental pollution from heavy metals is a growing concern, largely driven by increased industrial activity. This study measured the concentrations of seven heavy metals—lead, cadmium, chromium, manganese, cobalt, copper, and iron—and two trace ...
Igado Olumayowa Olawumi   +7 more
doaj   +1 more source

Recompte hivernal d'aus aquàtiques i limicoles a les Balears. Gener 2012 [PDF]

open access: yes
Winter census of Wildfowl and Shorebirds in the Balearic Islands, January 2012. A total of 31,176 birds were recorded of 68 espècies, a decrease of 13 % in number of individuals and 7 % in species compared with January 2011.
Garcia, David   +4 more
core  

Osservazioni sull'Avifauna della Laguna del Calich e considerazioni sulle possibili conseguenze degli interventi di bonifica [PDF]

open access: yes, 1981
An ornithological study was carried out on the lagoon of Calich. A census was made on 100 species of birds of which 66 «Non Passeriformes» and 34 «Passeriformes». 65 species are or have been migrators.
Torre, Antonio
core  

Recompte hivernal d'aus aquàtiques i limícoles a les Balears, gener 2012. [PDF]

open access: yes
Winter census of Wildfowl and Shorebirds in the Balearic Islands, January 2012. A total of 31,176 birds were recorded of 68 espècies, a decrease of 13 % in number of individuals and 7 % in species compared with January 2011.
García, David   +4 more
core  

Fifty-first supplement to the American Ornithologists\u27 Union Check-list of North American Birds [PDF]

open access: yes, 2010
Volume ...
Banks, Richard C.   +11 more
core  

Importância do litoral entre Minho e Lima para a avifauna migratória [PDF]

open access: yes, 2008
Mestrado em Ecologia, Biodiversidade e Gestão de EcossistemasApesar de estar ladeado por ZPE/IBA e um parque natural, o litoral entre o Lima e o Minho, zona pertencente à rede Natura 2000, carece de maior informação acerca das aves migratórias que nele ...
Araújo, Hélder Eduardo Fernandes
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The structure and phylogenesis of olfactory receptor gene OR14J1 in ardeid birds [PDF]

open access: yes, 2016
动物嗅觉受体(OlfactoryReceptor,OR)分布于嗅觉上皮而直接影响着嗅觉功能。哺乳类OR基因家族中位点相连于主要组织相容性复合体(MajorHistocompatibilityComplex,MHC)的基因比例最大,且邻近MHC的最常见OR14J1基因具有与MHC相关联的作用,动物通过嗅觉选择配偶能够有利于提高其免疫力和适应性。鸟类嗅觉以往被认为较弱而没有得到重视,近年来有关鸟类嗅觉基因的研究正在开始起步。 本论文在设计鹭科鸟类OR14J1通用引物的基础上,扩增鹭科鸟类OR14J1片段 ...
刘梦绮
core  

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