Results 81 to 90 of about 38,928 (270)
Integrative Zoology, EarlyView.Apicoplast genomic content and mitochondrial genomic content were found to be strongly correlated (rho = 0.93) for infections going from low to high. Apicoplast and mitochondrial genomic content were deemed as more predictive factors of parasitemia for different infection intensities.
Gaia Porporato +4 more
wiley +1 more source
Between-Year Survival and Rank Transitions in Male Black-Capped Chickadees (\u3cem\u3ePoecile Atricapillus\u3c/em\u3e): A Multistate Modeling Approach [PDF]
, 2008 In dominance-structured animal societies, variation in individual fitness is often related to social status. Like many passerine birds, Black-capped Chickadees (Poecile atricapillus) have a short average adult life-expectancy (Ø2 years); however, the ...
Kraus, Cornelia +5 more
core +1 more source
A critique of avian CHD-based molecular sexing protocols illustrated by a Z-chromosome polymorphism detected in auklets [PDF]
, 2001 The sexes of non-ratite birds can be determined routinely by PCR amplification of the CHD-Z and CHD-W genes. CHD -based molecular sexing of four species of auklets revealed the presence of a polymorphism in the Z chromosome.
Burke, T. +5 more
core +1 more source
Integrative Zoology, EarlyView.Avian haemosporidian blood parasites are typically identified through Sanger sequencing of a partial cytochrome b fragment, the MalAvi barcoding region. Next‐generation sequencing is seldom used for avian blood parasite identification; this study demonstrates a higher detection rate of co‐infections via metabarcoding and its possible implications ...
Peter Pibaque +9 more
wiley +1 more source
Ecology and Evolution, 2019 Many bird species are sexually monomorphic and cannot be sexed based on phenotypic traits. Rapid sex determination is often a necessary component of avian studies focusing on behavior, ecology, evolution, and conservation. While PCR‐based methods are the
Hanna R. Koch +2 more
doaj +1 more source
Sexually size dimorphic brains and song complexity in passerine birds [PDF]
, 2004 Neural correlates of bird song involve the volume of particular song nuclei in the brain that govern song development, production, and perception. Intra- and interspecific variation in the volume of these song nuclei are associated with overall brain ...
Eens, Marcel +3 more
core +2 more sources
Passerine and Softbill Therapeutics
Veterinary Clinics of North America: Exotic Animal Practice, 2000 Passerines (songbirds) and softbills (toucans and mynahs) are increasingly presented for veterinary care as pet owners and aviculturists recognize that successful medical and surgical treatment can be performed in these often tiny patients. Even with an increasing amount of pharmacokinetic data in birds, the use of extrapolated drug regimens continues ...
openaire +2 more sources
Methods in Ecology and Evolution, EarlyView.Abstract Collection of large behavioural data‐sets on wild animals in natural habitats is vital in ecology and evolution studies. Recent progress in machine learning and computer vision, combined with inexpensive microcomputers, has unlocked a new frontier of fine‐scale markerless measurements.
Michael Chimento +3 more
wiley +1 more source
Pesquisa Veterinária Brasileira, 2013 The yellow cardinal (Gubernatrix cristata) is a passerine found in southern Brazil, especially along the border with Uruguay and Argentina. It is an endangered species and its population is decreasing.
Larissa Quinto Pereira +5 more
doaj
The impact of a vertically transmitted microsporidian, Nosema granulosis on the fitness of its Gammarus duebeni host under stressful environmental conditions [PDF]
, 2003 Although purely vertically transmitted parasites are predicted to cause low pathogenicity in their hosts, the effects of such parasites on host fitness under stressful environmental conditions have not previously been assessed.
Dunn, A.M., Hatcher, M.J., Kelly, A.
core +1 more source