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Now available on Fast Track: Cryoprotective effect of glycerol concentrations on Indian Red Jungle Fowl (Gallus gallus murghi) spermatozoa

Posted on 13. April, 2018.

Semen cryopreservation protocols for wild avian species need to be optimised in order to achieve optimum post-thaw sperm quality and fertility. The present study was designed to evaluate the cryoprotective effect of different glycerol concentrations (11%, 15% and 20%) on post-thaw quality, recovery rates, absolute livability index and fertility of Indian Red Jungle Fowl (Gallus gallus murghi) semen. 

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Development of novel microsatellite markers for the Northern Goshawk (Accipiter gentilis) and their utility in cross-species amplification

Posted on 12. September, 2016.

The Northern Goshawk (Accipiter gentilis) is a large forest raptor with a Holarctic distribution and, in some portions of its range, a species of conservation concern. 

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Plasticity in nest composition in relation to nest-site characteristics in the Red-breasted Flycatcher (Ficedula parva)

Posted on 24. June, 2016.

The nest is an important part of reproduction of many altricial bird species and nest construction is varied, for example in site selection, shape and construction material. In this paper, the authors studied nest composition in the Red-breasted Flycatcher (Ficedula parva), breeding in natural holes in primeval stands of the Białowieża Forest.

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Perspectives on “Nest Construction and Function 2015”

Posted on 18. April, 2016.

Back in September 2012 Charles Deeming organised the first conference on nest construction and function, which was held at the University of Lincoln (Deeming, 2012). Even before the meeting was over he was being asked when the next meeting would be held. 

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Food supplementation reveals constraints and adaptability of egg quality in the magpie Pica pica

Posted on 18. February, 2016.

In addition to genetic effects, parents can affect offspring fitness traits through changes in propagule size, number or quality. These parental effects, especially maternal effects, may provide a mechanism for ‘phenotypic engineering’ which allows offspring to be adapted to variable environmental conditions. 

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Chitosan supplementation may improve the digestive physiology and health of captive Leiothrix lutea

Posted on 5. January, 2016.

The Red-billed Leiothrix (Leiothrix lutea) belongs to the Timaliidae family (Passeriformes) and is widely distributed throughout southern China, northern Vietnam and western and northern Myanmar. The bird is a regionally common or dominant species and plays an important role in forest ecosystems. 

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Modelling eggshell maculation

Posted on 24. November, 2015.

The great diversity of avian eggshell pigmentation and its possible adaptive significance has fascinated biologists for over a century. Ancestrally, avian eggshells were most likely homogenously white and immaculate although not necessarily devoid of pigment. Since then, however, they have evolved remarkable variation in both the basal ground colour and in the presence and patterns of superficial pigmentation, or maculation, which can include speckles, spots, blotches and streaks.

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Long-term variation in blood glucose concentration in nestling Great Tits (Parus major)

Posted on 6. November, 2015.

In recent decades, alterations in the environment have been rapid, and the pressure exerted on many wild populations has been continuously increasing. Many changes are related to urbanisation and of suburban and near-urban areas. These habitat alterations may exert environmental stresses on birds. Therefore, the different measures of physiological stress responses of vertebrates are of special interest to researchers.

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The importance of natural habitats as Short-toed Eagle (Circaetus gallicus) breeding sites

Posted on 19. October, 2015.

The biodiversity of native species is diminishing in many regions as natural habitats are being replaced by human settlements and agriculture. 

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