FIBROSSARCOMA CRANIANO EM GANSO-COMUM (Anser anser)

2020 ◽  
Author(s):  
Gabriela da Silveira Capriolli ◽  
William Lins Batista ◽  
Carolina Silveira Braga ◽  
Marcelo Meller Alievi
Keyword(s):  
Anser Anser

Current Status of Anserinae Wintering in Azov-Black Sea Region of Ukraine

2019 ◽  
Vol 53 (4) ◽  
pp. 297-312
Author(s):  
Yu. O. Andryushchenko ◽  
V. S. Gavrilenko ◽  
V. A. Kostiushyn ◽  
V. N. Kucherenko ◽  
A. S. Mezinov ◽  
...  
Keyword(s):  
Black Sea ◽  
Current Status ◽  
Anser Anser ◽  
Scientific Publications ◽  
Climate Conditions ◽  
Black Sea Region ◽  
Chen Caerulescens ◽  
Branta Bernicla ◽  
The North ◽  
Different Seasons

Abstract In the article is analyzed own field data of the authors and scientific publications on the wintering of Anserinae in the Azov-Black Sea region of Ukraine in 1900–2017, but the main data was obtained in frame of international mid-winter counts (IWC) in 2005–2017. It was found that 9 species of Anserinae occur in this region during the different seasons of the year: Anser anser — nesting, wintering and migrating; Rufibrenta ruficollis, A. albifrons, A. erythropus, A. fabalis — migrating and wintering; Branta canadensis, Branta leucopsis, Branta bernicla, Chen caerulescens — vagrant or birds which flew away from captivity (zoo etc.). Eulabeia indica — is possible vagrant species. The most numerous wintering species is A. albifrons, common — Rufibrenta ruficollis, not numerous — Anser anser, the other species are not met annually and registered in a very small number. There was almost tenfold drop in number of wintering geese in the Azov-Black Sea region of Ukraine during the period of counts. The main reasons of such reducing of geese amount are the followwing: weather and climate conditions, changes in the forage acessibility, hunting and poaching pressure, poisoning as a result of deratization of agricultural lands, and from 2014 — the militarization of the Syvash area and stop of water supplying of Crimea through the North Crimean channell. It is likely that the factors mentioned above led to relocating of wintering areas of Anserinae, and resulted in decreasing of their amount in this region.

Видовой состав фауны эндопаразитов диких птиц отряда Пластинчатоклювые (Anseriformes) в регионе Северного Кавказа

2015 ◽  
pp. 36-38
Author(s):  
Вагид Шарапудинович Пашаев ◽  
Анатолий Мурашевич Биттиров ◽  
Црай Бесланович Кагермазов
Keyword(s):  
Anser Anser ◽  
Anas Crecca ◽  
Mergus Merganser ◽  
Anas Strepera ◽  
Anser Erythropus

В статье приведены сведения о видовом составе эндопаразитофауны у семи видов птиц отряда Пластинчатоклювые (Anseriformes) в регионе Северного Кавказа. У видов Anser anser L., Anser erythropus, Anas platyrhynehos L., Anas strepera L., Anas crecca L., Tadorna tadorna L., Mergus merganser L. определено 13 видов рода эймерия, 116 видов био- и геогельминтов, в том числе: Trematoda — 87 видов, Cestoda — 14 видов, Nematoda — 10 видов, Acantocephala — 5 видов с тенденцией формирования в организме птиц простых и сложных многокомпонентных паразитокомплексов. Исследования проводили в 2006 – 2014 гг. на базах ФГУ «Эльбрусский национальный парк», ФГУ «Кабардино-Балкарский государственный высокогорный заповедник», в 12 охотничьих хозяйствах и участках Кабардино-Балкарской Республики и Республики Дагестан на диких и синантропных птицах разного возраста. Паразитологическим исследованиям подвергнуты семь видов диких птиц отряда Пластинчатоклювые (всего 660 особей): серый гусь Anser anser L. — 110 особей, малый белолобый гусь Anser erythropus — 95 особей, обыкновенная кряква Anas platyrhynehos L. — 216 особей, серая утка Anas strepera L. — 100 особей, чирок-свистунок Anas crecca L. — 45 особей, пеганка Tadorna tadorna L. — 76 особей, большой крохаль Mergus merganser L. — 18 особей. Для изучения видовой структуры эндопаразитов применяли методы полного и неполного гельминтологического вскрытия. Использованы статистические методы дисперсионного анализа; вычисления выполнены с помощью программы Statistica 6.0.

Natural induction of spontaneous liver steatosis in Greylag Landaise geese (Anser anser)

2013 ◽  
Vol 91 (1) ◽  
pp. 455-464 ◽  
Author(s):  
G. Guy ◽  
L. Fortun-Lamothe ◽  
G. Bénard ◽  
X. Fernandez
Keyword(s):  
Liver Steatosis ◽  
Anser Anser ◽  
Natural Induction

scholarly journals From individual to population level: Temperature and snow cover modulate fledging success through breeding phenology in greylag geese (Anser anser)

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Didone Frigerio ◽  
Petra Sumasgutner ◽  
Kurt Kotrschal ◽  
Sonia Kleindorfer ◽  
Josef Hemetsberger
Keyword(s):  
Ambient Temperature ◽  
Reproductive Output ◽  
Population Level ◽  
Egg Laying ◽  
Future Research ◽  
Breeding Phenology ◽  
Anser Anser ◽  
Fledging Success ◽  
Average Annual Temperature ◽  
Greylag Geese

AbstractLocal weather conditions may be used as environmental cues by animals to optimize their breeding behaviour, and could be affected by climate change. We measured associations between climate, breeding phenology, and reproductive output in greylag geese (Anser anser) across 29 years (1990–2018). The birds are individually marked, which allows accurate long-term monitoring of life-history parameters for all pairs within the flock. We had three aims: (1) identify climate patterns at a local scale in Upper Austria, (2) measure the association between climate and greylag goose breeding phenology, and (3) measure the relationship between climate and both clutch size and fledging success. Ambient temperature increased 2 °C across the 29-years study period, and higher winter temperature was associated with earlier onset of egg-laying. Using the hatch-fledge ratio, average annual temperature was the strongest predictor for the proportion of fledged goslings per season. There is evidence for an optimum time window for egg-laying (the earliest and latest eggs laid had the lowest fledging success). These findings broaden our understanding of environmental effects and population-level shifts which could be associated with increased ambient temperature and can thus inform future research about the ecological consequences of climate changes and reproductive output in avian systems.

Hypothalamus–pituitary axis transcriptomic modification dependent on growth rate in geese ( Anser anser domesticus )

2021 ◽  
Author(s):  
Katarzyna Piórkowska ◽  
Kacper Żukowski ◽  
Katarzyna Połtowicz ◽  
Wojciech Witarski ◽  
Joanna Nowak ◽  
...  
Keyword(s):  
Growth Rate ◽  
Anser Anser
Sign in / Sign up

Export Citation Format

Share Document