Results 31 to 40 of about 9,864 (233)

Breeding status of invasive Rose-ringed Parakeets Psittacula krameri in Durban, South Africa

open access: yesOstrich, 2022
The Rose-ringed Parakeet Psittacula krameri has established feral populations in South African suburban areas. However, the information on the breeding biology of parakeets remains poorly documented in the country.
T. C. Shivambu   +2 more
semanticscholar   +1 more source

Nest-building behavior of Monk Parakeets and insights into potential mechanisms for reducing damage to utility poles [PDF]

open access: yesPeerJ, 2014
The Monk Parakeet (Myiopsitta monachus) commonly uses utility poles as a substrate for building large, bulky nests. These nests often cause fires and electric power outages, creating public safety risks and increasing liability and maintenance costs for ...
Kevin R. Burgio   +2 more
doaj   +2 more sources

Cytometric blood phenotyping in free-living white-eyed parakeet (Psittacara leucophthalmus)

open access: yesPesquisa Veterinária Brasileira, 2021
: This study aimed at performing cytometric phenotyping of the blood samples from free-living, young white-eyed parakeets (Psittacara leucophthalmus), stained with 3,3-dihexyloxacarbocyanine [DiOC6(3)].
Nathan R.N. Cruz   +4 more
doaj   +1 more source

Invasion success of a global avian invader is explained by within-taxon niche structure and association with humans in the native range [PDF]

open access: yes, 2015
Aim To mitigate the threat invasive species pose to ecosystem functioning, reli- able risk assessment is paramount. Spatially explicit predictions of invasion risk obtained through bioclimatic envelope models calibrated with native species distribution ...
Araújo   +59 more
core   +1 more source

Sex Determination in Male and Female Melopsittacus undulates using a Morphometric Method

open access: yesBiosaintifika: Journal of Biology & Biology Education, 2018
Parakeets (Melopsittacus undulates) are classified parrot order Psittaciformes. Parakeets are monomorphic birds whose sex is difficult to be distinguished.
Ibnu Baehaqi   +2 more
doaj   +1 more source

Effects of cold winters and roost site stability on population development of non-native Asian ring-necked parakeets (Alexandrinus manillensis) in temperate Central Europe – Results of a 16-year census [PDF]

open access: yes, 2018
Asian ring-necked parakeets (Alexandrinus manillensis, formerly Psittacula krameri, hereafter RNP) first bred in Germany in 1969. Since then, RNP numbers increased in all three major German subpopulations (Rhineland, Rhine-Main, Rhine-Neckar ...
Bauer, Andreas   +24 more
core   +2 more sources

Postfledging dispersal of red‐fronted parakeets (Cyanoramphus novaezelandiae) from a fenced mainland sanctuary

open access: yesConservation Science and Practice, 2021
Translocations are an important tool for conserving species at risk of extinction from a range of threats. However, an understanding of the life history of many threatened species prior to translocation is often lacking despite being critical for ...
E. Irwin   +4 more
semanticscholar   +1 more source

Population counts and potential impact of two successful invaders in a town of Northern Italy: the case of ring-necked parakeet and Alexandrine parakeet in Reggio Emilia

open access: yesNatural History Sciences, 2021
In our paper, we reported the presence of two alien species in the city of Reggio Emilia, the ring-necked parakeet Psittacula krameri and the Alexandrine parakeet Psittacula eupatria.
Andrea Viviano, Emiliano Mori
doaj   +1 more source

Nest niche overlap among the endangered Vinaceous-breasted Parrot (Amazona vinacea) and sympatric cavity-using birds, mammals, and social insects in the subtropical Atlantic Forest, Argentina [PDF]

open access: yes, 2017
Many forest bird species require tree cavities for nesting, and share this resource with a diverse community of animals. When cavities are limited, niche overlap can result in interspecific competition, with negative consequences for threatened ...
Bonaparte, Eugenia Bianca   +1 more
core   +1 more source

Population Viability Analysis of Monk Parakeets in the United States and Examination of Alternative Management Strategies

open access: yesHuman-Wildlife Interactions, 2017
In the United States, monk parakeets (Myiopsitta monachus) are expanding their geographical distribution, and their overall population size is growing exponentially. Monk parakeets are causing widespread economic damage in the United States by nesting on
Stephen Pruett-Jones   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy