Results 171 to 180 of about 1,744 (197)
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Foot preferences in wild-living ring-necked parakeets (Psittacula krameri, Psittacidae)

Laterality: Asymmetries of Body, Brain and Cognition, 2011
Evidence for foot preferences has been reported in parrots and the majority of parrot species uses the left foot to hold and process food objects. Here we assessed the footedness of ring-necked parakeets (Psittacula krameri) in a wild-living non-native population in Heidelberg, Baden-Wurttemberg, Germany.
Christoph, Randler   +2 more
openaire   +2 more sources

Primary structure of the hemolglobin β-chain of Rose-ringed Parakeet (Psittacula krameri)

Journal of Protein Chemistry, 1989
The primary structure of Rose-ringed Parakeet hemoglobin beta-chain was established, completing the analysis of this hemoglobin. Comparison with other avian beta-chains show variations smaller than those for the corresponding alpha-chains. There are 11 amino acid exchanges in relationship to the only other characterized psittaciform beta-chain, and a ...
A, Islam   +3 more
openaire   +2 more sources

Islets of Langerhans in the parakeet, Psittacula krameri.

Anatomischer Anzeiger, 1980
The pancreatic gland of Psittacula krameri is divisible into 4 lobes i.e. dorsal, ventral, third and splenic. The endocrine part is composed of alpha 1-, alpha 2- and beta-cells. The islets are of 4 kinds viz., alpha islets (having alpha 1- and alpha 2-cells), beta islets (having beta- and alpha 1-cells), pure beta islets (consisting of beta-cells ...
Y K, Gupta, S, Kumar
openaire   +1 more source

Primary structure of the hemoglobin α-chain of rose-ringed parakeet (Psittacula krameri)

Journal of Protein Chemistry, 1988
The structure of the hemoglobin alpha-chain of Rose-ringed Parakeet was determined by sequence degradations of the intact subunit, the CNBr fragments, and peptides obtained by digestion with staphylococcal Glu-specific protease and trypsin. Using this analysis, the complete alpha-chain structure of 21 avian species is known, permitting comparisons of ...
A, Islam   +4 more
openaire   +2 more sources

Food of the Rose ringed Parakeet Psittacula Krameri: a Quantitative Study

1994
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Saini, Harjeet Kaur   +2 more
openaire   +1 more source

Escapes of Psittacula krameri and Agapornis spp. breeding in Kenya

1969
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Vertical segregation by breeding ring-necked parakeets Psittacula krameri in northern Italy

Urban Ecosystems, 2018
Cavities represent a limiting resource for breeding birds, thus triggering potential competition, mostly in urban ecosystems. The ring-necked parakeet Psittacula krameri is one of the main alien invasive bird species of the world. Introduced populations are reported for over 35 countries, Italy included.
Gioele Grandi   +2 more
openaire   +3 more sources

CHLAMYDIA AVIUM DETECTION FROM A RING-NECKED PARAKEET ( PSITTACULA KRAMERI ) IN FRANCE

Journal of Exotic Pet Medicine, 2018
Abstract The crossing of host species barriers, through the spreading populations of introduced pet animals that become established in the wild, sets the stage for zoonotic pathogen (re)emergence. A literature review on pathogens that are hosted by the ring-necked parakeet ( Psittacula krameri ), a worldwide introduced pet, highlighted local ...
Benoît Pisanu   +6 more
openaire   +1 more source

Reproductive success of rose‐ringed parakeets Psittacula krameri in a captive UK population

Pest Management Science, 2009
Abstract BACKGROUND: Rose‐ringed parakeets Psittacula krameri (Scop.) have recently become established in several European countries, with potential for significant negative economic and ecological impacts.
Mark S, Lambert   +5 more
openaire   +2 more sources

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