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https://www.readbyqxmd.com/read/28802899/a-species-dependent-response-to-the-pro-epileptic-drug-pentylentetrazole-in-birds
#1
Faiq Amin, Asim H Dar, Khan Osama, Faezah Khan, Rida Mitha, Arsal Tharwani, Ghulam Haider, Prem Chand, Fazal M Arain
Epilepsy is common disorder that affects over 50 million people worldwide. Birds remain a promising yet largely under-explored model of epilepsy. This study reports the comparison of the response of two species of birds, Australian Parrots (APs) and Sparrows (SPs), to a pro-epileptic drug, Pentylenetetrazole (PTZ). PTZ injections caused myoclonic jerks (MCJs) and tonic clonic seizures (TCSs) in both species. The frequency of MCJs in APs was greater at the dose of 75mg/kg compared to both 50mg/kg and 25mg/kg while it was not significantly different in SPs...
August 9, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28799245/when-and-where-to-move-dynamic-occupancy-models-explain-the-range-dynamics-of-a-food-nomadic-bird-under-climate-and-land-cover-change
#2
Riddhika Kalle, Tharmalingam Ramesh, Colleen T Downs
Globally, long-term research is critical to monitor the responses of tropical species to climate and land cover change at the range scale. Citizen science surveys can reveal the long-term persistence of poorly known nomadic tropical birds occupying fragmented forest patches. We applied dynamic occupancy models to 13 years (2002-2014) of citizen science driven presence/absence data on Cape parrot (Poicephalus robustus), a food nomadic bird endemic to South Africa. We modelled its underlying range dynamics as a function of resource distribution, and change in climate and land cover through the estimation of colonization and extinction patterns...
August 11, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28770082/lazarus-ecology-recovering-the-distribution-and-migratory-patterns-of-the-extinct-carolina-parakeet
#3
Kevin R Burgio, Colin J Carlson, Morgan W Tingley
The study of the ecology and natural history of species has traditionally ceased when a species goes extinct, despite the benefit to current and future generations of potential findings. We used the extinct Carolina parakeet as a case study to develop a framework investigating the distributional limits, subspecific variation, and migratory habits of this species as a means to recover important information about recently extinct species. We united historical accounts with museum collections to develop an exhaustive, comprehensive database of every known occurrence of this once iconic species...
July 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28705202/the-influence-of-molecular-markers-and-methods-on-inferring-the-phylogenetic-relationships-between-the-representatives-of-the-arini-parrots-psittaciformes-determined-on-the-basis-of-their-complete-mitochondrial-genomes
#4
Adam Dawid Urantowka, Aleksandra Kroczak, Paweł Mackiewicz
BACKGROUND: Conures are a morphologically diverse group of Neotropical parrots classified as members of the tribe Arini, which has recently been subjected to a taxonomic revision. The previously broadly defined Aratinga genus of this tribe has been split into the 'true' Aratinga and three additional genera, Eupsittula, Psittacara and Thectocercus. Popular markers used in the reconstruction of the parrots' phylogenies derive from mitochondrial DNA. However, current phylogenetic analyses seem to indicate conflicting relationships between Aratinga and other conures, and also among other Arini members...
July 14, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28703699/a-high-prevalence-of-beak-and-feather-disease-virus-in-non-psittacine-australian-birds
#5
Jemima Amery-Gale, Marc S Marenda, Jane Owens, Paul A Eden, Glenn F Browning, Joanne M Devlin
PURPOSE: Beak and feather disease virus (BFDV) is a circovirus and the cause of psittacine beak and feather disease (PBFD). This disease is characterized by feather and beak deformities and is a recognized threat to endangered Psittaciformes (parrots and cockatoos). The role that non-psittacine birds may play as reservoirs of infection is unclear. This study aimed to begin addressing this gap in our knowledge of PBFD. METHODOLOGY: Liver samples were collected from birds presented to the Australian Wildlife Health Centre at Zoos Victoria's Healesville Sanctuary for veterinary care between December 2014 and December 2015, and tested for BFDV DNA using polymerase chain reaction coupled with sequencing and phylogenetic analyses...
July 2017: Journal of Medical Microbiology
https://www.readbyqxmd.com/read/28692816/unique-oestrogen-receptor-ligand-binding-domain-sequence-of-native-parrots-a-possible-link-between-phytoestrogens-and-breeding-success
#6
Catherine E J Davis, Adrian H Bibby, Kevin M Buckley, Kenneth P McNatty, Janet L Pitman
The New Zealand (NZ) native parrots kākāpō, kākā and kea are classified as critically endangered, endangered and vulnerable respectively. Successful reproduction of kākāpō and kākā is linked to years of high levels of fruiting in native flora (mast years). To assess a possible hormonal link between native plants and reproductive success in these parrots in mast years, we examined the ligand-binding domains (LBD) of the progesterone receptor (PR), androgen receptor (AR), estrogen receptor 1 (ESR1) and estrogen receptor 2 (ESR2) in NZ native (kākāpō, kākā, kea and kākāriki) and non-native (Australian cockatiel) parrots and compared them with those in the chicken...
July 11, 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28684773/the-temporal-dependence-of-exploration-on-neotic-style-in-birds
#7
Mark O'Hara, Berenika Mioduszewska, Auguste von Bayern, Alice Auersperg, Thomas Bugnyar, Anna Wilkinson, Ludwig Huber, Gyula Koppany Gajdon
Exploration (interacting with objects to gain information) and neophobia (avoiding novelty) are considered independent traits shaped by the socio-ecology of a given species. However, in the literature it is often assumed that neophobia inhibits exploration. Here, we investigate how different approaches to novelty (fast or slow) determine the time at which exploration is likely to occur across a number of species. We presented four corvid and five parrot species with a touchscreen discrimination task in which novel stimuli were occasionally interspersed within the familiar training stimuli...
July 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28674651/a-new-parrot-taxon-from-the-yucat%C3%A3-n-peninsula-mexico-its-position-within-genus-amazona-based-on-morphology-and-molecular-phylogeny
#8
Tony Silva, Antonio Guzmán, Adam D Urantówka, Paweł Mackiewicz
Parrots (Psittaciformes) are a diverse group of birds which need urgent protection. However, many taxa from this order have an unresolved status, which makes their conservation difficult. One species-rich parrot genus is Amazona, which is widely distributed in the New World. Here we describe a new Amazona form, which is endemic to the Yucatán Peninsula. This parrot is clearly separable from other Amazona species in eleven morphometric characters as well as call and behavior. The clear differences in these features imply that the parrot most likely represents a new species...
2017: PeerJ
https://www.readbyqxmd.com/read/28644086/single-dose-pharmacokinetics-of-piperacillin-tazobactam-in-hispaniolan-amazon-parrots-amazona-ventralis
#9
James W Carpenter, Thomas N Tully, Ronette Gehring, David Sanchez-Migallon Guzman
To determine the pharmacokinetics of piperacillin/tazobactam in Hispaniolan Amazon parrots ( Amazona ventralis ), 8 healthy adult parrots of both sexes were used in a 2-part study. In a pilot study, piperacillin (87 mg/kg) in combination with tazobactam (11 mg/kg) was administered intramuscularly (IM) to 2 birds, and blood samples were obtained at 0, 0.5, 1, 1.5, 2, 3, 4, 6, 8, and 10 hours after administration. Based on the results obtained, a main study was done in which piperacillin/tazobactam was administered at 2 different doses...
June 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28629971/survey-of-pathogens-in-threatened-wild-red-tailed-amazon-parrot-amazona-brasiliensis-nestlings-in-rasa-island-brazil
#10
Frederico Fontanelli Vaz, Patrícia Pereira Serafini, Rosangela Locatelli-Dittrich, Rafael Meurer, Edison Luiz Durigon, Jansen de Araújo, Luciano Matsumiya Thomazelli, Tatiana Ometto, Elenise Angelotti Bastos Sipinski, Rafael Meirelles Sezerban, Maria Cecília Abbud, Tânia Freitas Raso
The red-tailed Amazon parrot (Amazona brasiliensis) is a threatened species of psittacine bird that inhabit coastal regions of Brazil. In view of the threat of this species, the aim of this study was to perform a health evaluation in wild nestlings in Rasa Island, determining the prevalence of enterobacteria and infectious agents according to type of nest. Blood samples were collected from 64 birds and evaluated for antibodies of Chlamydia psittaci by commercial dot-blot ELISA. Cloacal and oropharyngeal swabs samples were collected from 23 birds from artificial wooden nests, 15 birds from PVC nests and 2 birds from natural nests for microbiological analysis...
June 3, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/28629177/exnotic-should-we-be-keeping-exotic-pets
#11
Rachel A Grant, V Tamara Montrose, Alison P Wills
There has been a recent trend towards keeping non-traditional companion animals, also known as exotic pets. These pets include parrots, reptiles, amphibians and rabbits, as well as small species of rodent such as degus and guinea pigs. Many of these exotic pet species are not domesticated, and often have special requirements in captivity, which many owners do not have the facilities or knowledge to provide. Keeping animals in settings to which they are poorly adapted is a threat to their welfare. Additionally, owner satisfaction with the animal may be poor due to a misalignment of expectations, which further impacts on welfare, as it may lead to repeated rehoming or neglect...
June 19, 2017: Animals: An Open Access Journal From MDPI
https://www.readbyqxmd.com/read/28617575/external-influences-on-invertebrate-brain-histamine-and-related-compounds-via-an-automated-derivatization-method-for-capillary-electrophoresis
#12
Sandrine Parrot, Mónica Pavón Vergés, Marie-Jeanne Perrot-Minnot, Luc Denoroy
Histamine has been shown to modulate visual system and photic behavior in arthropods. However, few methods are available for the direct quantification of histamine and its precursor and metabolites in arthropod brain. In this work, a method for the separation of histamine, its precursor histidine and its metabolite N-methyl-histamine from brain extracts of a freshwater crustacean has been developed using capillary electrophoresis with laser-induced fluorescence detection. Molecules were tagged on their primary amine function with naphthalene-2,3-dicarboxaldehyde, but derivatized histamine and N-methyl-histamine exhibited poor stability in contrast to derivatized histidine...
June 15, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28617501/generation-and-characterisation-of-a-stable-nickel-ii-aminoxyl-radical-complex
#13
Arnaud Parrot, Yuma Morimoto, Sayantan Paria, Hideki Sugimoto, Nobutaka Fujieda, Shinobu Itoh
A stable nickel(ii)-aminoxyl radical complex was generated by the reaction of a nickel(ii) complex supported by a tren ligand (tris(2-aminoethyl)amine) having bulky m-terphenyl substituents (TIPT: 3,5-bis(2,6-diisopropylphenyl)phenyl) and m-CPBA (m-chloroperoxybenzoic acid). The formation mechanism of the nickel(ii)-aminoxyl radical complex was examined.
June 27, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28610269/feather-mites-of-the-genera-i-dubininia-i-and-i-cacatualges-i-acari-xolalgidae-associated-with-parrots-aves-psittaciformes-of-the-old-world
#14
Sergey V Mironov, Rainer Ehrnsberger, Jacek Dabert
This paper gives a systematic revision of feather mites of the genera Dubininia Vassilev, 1958 and Cacatualges Dabert, Badek and Skoracki, 2007 (Xolalgidae: Ingrassiinae) associated with parrots (Aves: Psittaciformes) of the Old World. Five new species are described: Cacatualges probosciger sp. n. from Probosciger aterrimus (Gmelin) (Cacatuidae) from New Guinea, Dubininia charmosynae sp. n. from Charmosyna pulchella Gray GR (Psittaculidae) from New Guinea, D. micropsittae sp. n. from Micropsitta pusio pusio (Scaltter) (Psittaculidae) from New Guinea, D...
May 31, 2017: Zootaxa
https://www.readbyqxmd.com/read/28541145/pharmacokinetics-of-butorphanol-tartrate-in-a-long-acting-poloxamer-407-gel-formulation-administered-to-hispaniolan-amazon-parrots-amazona-ventralis
#15
Delphine Laniesse, David Sanchez-Migallon Guzman, Heather K Knych, Dale A Smith, Cornelia Mosley, Joanne R Paul-Murphy, Hugues Beaufrère
OBJECTIVE To determine pharmacokinetics of butorphanol tartrate incorporated into poloxamer 407 (P407) after SC administration to Hispaniolan Amazon parrots (Amazona ventralis). ANIMALS 11 adult Hispaniolan Amazon parrots (6 males and 5 females; 11 to 27 years old). PROCEDURES A sterile formulation of butorphanol in P407 (But-P407) 25% (percentage determined as [weight of P407/weight of diluent] × 100]) was created (8.3 mg/mL). Five preliminary experiments (2 birds/experiment) were performed to determine the ideal dose for this species...
June 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28533452/fluorescence-as-a-means-of-colour-signal-enhancement
#16
REVIEW
Justin Marshall, Sonke Johnsen
Fluorescence is a physico-chemical energy exchange where shorter-wavelength photons are absorbed by a molecule and are re-emitted as longer-wavelength photons. It has been suggested a means of communication in several taxa including flowers, pitcher plants, corals, algae, worms, squid, spiders, stomatopods, fish, reptiles, parrots and humans. The surface or object that the pigment molecule is part of appears to glow due to its setting rather than an actual production of light, and this may enhance both signals and, in some cases, camouflage...
July 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28523489/occurrence-of-ornithonyssus-sylviarum-in-pet-birds-from-the-district-of-set%C3%A3%C2%BAbal-portugal
#17
Helga Waap, Diana Paulino, Rita Cardoso
Ornithonyssus sylviarum is a blood-feeding ectoparasite of birds and the most serious pest in poultry farms in North America. Although the mites are typically adapted to temperate climates, information on this mite in Europe is sparse, and Dermanyssus gallinae is considered to be the only mite impacting the poultry industry. The present study reports the occurrence of O. sylviarum in pet birds in Portugal. Mites were collected directly from birds and with traps placed in cages and nests at 20 different sampling places belonging to 6 municipalities in the district of Setúbal...
July 2017: Parasitology Research
https://www.readbyqxmd.com/read/28523329/respiratory-bronchiolitis-associated-interstitial-lung-disease-an-unexpected-form-of-idiopathic-interstitial-pneumonia-in-a-young-male
#18
Claudia Lucia Toma, Elena Danteş, Diana Gabriela Leonte, Ariadna Petronela Fildan
Cigarette smoking is the most frequently encountered risk factor for chronic obstructive pulmonary disease and lung cancer. The latest American Thoracic Society÷European Respiratory Society classification of idiopathic interstitial pneumonia includes two entities related to smoking habits: respiratory bronchiolitis-associated interstitial lung disease and desquamative interstitial pneumonia. The new approach to diagnosis is to combine pathological pattern with clinical and radiological data. Lung biopsy is no longer considered the "gold standard" for diagnosis, but as a part of the diagnosis, which shall be set only after the pulmonologist, radiologist and pathologist reviewed all clinical, imaging and pathological aspects...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28488446/plasma-protein-haematologic-and-blood-chemistry-changes-in-african-grey-parrots-psittacus-erithacus-experimentally-infected-with-bornavirus
#19
Charlotte Högemann, Rüdiger Richter, Rüdiger Korbel, Monika Rinder
Bornaviruses are considered to be the causative agent of proventricular dilatation disease (PDD) in psittacine birds. In order to detect haematological and blood chemistry changes during the development of PDD and a possible correlation with clinical signs and the virological status, six African grey parrots (Psittacus erithacus) were experimentally infected with parrot bornavirus 4 (PaBV-4) by subcutaneous route. All six parrots developed clinical signs of varying extent and successful infection was confirmed in all the birds by seroconversion or detection of RNA of the PaBV-4 infection strain...
July 13, 2017: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/28482709/isotope-%C3%AE-13-c-%C3%AE-15-n-%C3%AE-2-h-diet-tissue-discrimination-in-african-grey-parrot-psittacus-erithacus-implications-for-forensic-studies
#20
Craig Symes, Felix Skhosana, Mike Butler, Brett Gardner, Stephan Woodborne
Diet-tissue isotopic relationships established under controlled conditions are informative for determining the dietary sources and geographic provenance of organisms. We analysed δ(13)C, δ(15)N, and non-exchangeable δ(2)H values of captive African grey parrot Psittacus erithacus feathers grown on a fixed mixed-diet and borehole water. Diet-feather Δ(13)C and Δ(15)N discrimination values were +3.8 ± 0.3 ‰ and +6.3 ± 0.7 ‰ respectively; significantly greater than expected. Non-exchangeable δ(2)H feather values (-62...
May 8, 2017: Isotopes in Environmental and Health Studies
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