Results 21 to 30 of about 1,706 (202)

Preliminary Evaluation of a Tris-Based Extender for the Semen Examination Procedure in a Hybrid Falcon (Falco rusticolus × Falco cherrug) [PDF]

open access: yesCase Reports in Veterinary Medicine
Artificial insemination (AI) plays an important role in threatened raptor species conservation, as well as in falconry for commercial purposes. There is still a need to identify a suitable extender that maintains an adequate environment for sperm ...
Miranda Govoni   +6 more
doaj   +2 more sources

Root causes of the decreasing in numbers of the Saker Falcon and ways of its decision within the Saker Falcon Global Action Plan in Russia and Kazakhstan

open access: yesПернатые хищники и их охрана, 2015
This report summarizes information on factors impacting on the decrease in numbers of the Saker Falcon (Falco cherrug) in Russia and Kazakhstan and analyses conditions в of the Global Action Plan that are aimed at neutralization of these factors to ...
Elvira G. Nikolenko   +2 more
doaj   +3 more sources

Risk assessment in the plateau pika (Ochotona curzoniae): intensity of behavioral response differs with predator species [PDF]

open access: yesBMC Ecology, 2020
Background The ability of a prey species to assess the risk that a predator poses can have important fitness advantages for the prey species. To better understand predator–prey interactions, more species need to be observed to determine how prey ...
Wanrong Wei   +3 more
doaj   +2 more sources

Evolution and Climate Adaptation in Eurasian Gyrfalcon Populations. [PDF]

open access: yesEcol Evol
This reports the influence of past, current and future Arctic climate change to the evolution of Eurasian gyrfalcons (Falco rusticolus), and reveals that its current evolutionary potential is insufficient to cope with the ongoing Arctic warming. ABSTRACT Climate change is considered a key driver for shaping ecological and evolutionary processes of ...
Liu X   +10 more
europepmc   +2 more sources

Artificial nests for the Saker Falcon in mountainous steppes of Southern Siberia – platforms or nestboxes?

open access: yesПернатые хищники и их охрана, 2022
Installing artificial nests is a widely used method of managing wild bird populations around the world that allows to increase their numbers and/or productivity and breeding success.
Igor V. Karyakin   +3 more
doaj   +1 more source

Ontogenetic changes in the live weight of Saker falcon (Falco cherrug) chicks during the artificial feeding from hatching to transferring

open access: yesActa Biologica Sibirica, 2022
The dynamics of changes in the live weight of saker falcon (Falco cherrug) chicks in the early postnatal period and the comparison of the growth energy of chicks of different morphometric groups during artificial feeding from hatching to transferring ...
Sergey I. Snigirev, Lidiya B. Mendel
doaj   +1 more source

About the Saker Falcon Situation in the Southern Balkhash Region in the South-East of Kazakhstan

open access: yesПернатые хищники и их охрана, 2023
The Saker Falcon (Falco cherrug) has been a breeding and wintering species in the southern shore of Lake Balkhash region for the last two decades. There is a publication describing the first known case of the Saker Falcon nesting there in 2013 and the ...
Altai Zh. Zhatkanbaev   +4 more
doaj   +1 more source

An Adaptive Management Framework Concept for the Sustainable Use of the Saker Falcon

open access: yesПернатые хищники и их охрана, 2023
The Saker Falcon (Falco cherrug) is listed on the International Union for Conservation of Nature (IUCN) Red List as Globally Endangered. It breeds across continental middle latitudes, with its range spanning over 7,000 km from Central Europe to Western ...
Andras Kovacs   +4 more
doaj   +1 more source

Unusual raptor nests around the world [PDF]

open access: yes, 2009
From surveys in many countries, we report using unusual nesting materials (e.g., paper money, rags, metal, antlers, and large bones) and unusual nesting situations. For example, we documented nests of Steppe Eagles [Aquila nipalensis] and Upland Buzzards
Anderson, Daniel W.   +14 more
core   +2 more sources

Transcription-associated mutation promotes RNA complexity in highly expressed genes - a major new source of selectable variation [PDF]

open access: yes, 2018
Alternatively spliced transcript isoforms are thought to play a critical role for functional diversity. However, the mechanism generating the enormous diversity of spliced transcript isoforms remains unknown, and its biological significance remains ...
Bruford, Michael W.   +9 more
core   +2 more sources

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