Evaluation of Indicated Breeding Pair Criteria to Estimate Mallard Breeding Populations

2002 ◽  
Vol 66 (4) ◽  
pp. 985 ◽  
Author(s):  
Michael G. Brasher ◽  
Richard M. Kaminski ◽  
L. Wes Burger
Keyword(s):  
Breeding Pair ◽  
Breeding Populations

Evaluation of sugar beet breeding populations based morpho-physiological characters under salinity stress

2018 ◽  
Vol 51 (1) ◽  
Author(s):  
Mehdi Taghizadegan ◽  
Mahmoud Toorchi ◽  
Mohammad Moghadam Vahed ◽  
Samar Khayamim
Keyword(s):  
Sugar Beet ◽  
Salinity Stress ◽  
Breeding Populations ◽  
Physiological Characters

Steigende Bestandszahlen bei Spechten und anderen Vogelarten dank Zunahme von Totholz? | An increase in the population of woodpeckers and other bird species thanks to an increase in the quantities of deadwood?

2009 ◽  
Vol 160 (11) ◽  
pp. 334-340 ◽  
Author(s):  
Pierre Mollet ◽  
Niklaus Zbinden ◽  
Hans Schmid
Keyword(s):  
Forest Inventory ◽  
Bird Species ◽  
National Forest Inventory ◽  
Population Increase ◽  
National Forest ◽  
Forest Species ◽  
Breeding Populations ◽  
Willow Tit ◽  
Middle Spotted Woodpecker ◽  
Important Habitat

Results from the monitoring programs of the Swiss Ornithological Institute show that the breeding populations of several forest species for which deadwood is an important habitat element (black woodpecker, great spotted woodpecker, middle spotted woodpecker, lesser spotted woodpecker, green woodpecker, three-toed woodpecker as well as crested tit, willow tit and Eurasian tree creeper) have increased in the period 1990 to 2008, although not to the same extent in all species. At the same time the white-backed woodpecker extended its range in eastern Switzerland. The Swiss National Forest Inventory shows an increase in the amount of deadwood in forests for the same period. For all the mentioned species, with the exception of green and middle spotted woodpecker, the growing availability of deadwood is likely to be the most important factor explaining this population increase.

scholarly journals Widely distributed breeding populations of Canada warbler (Cardellina canadensis) converge on migration through Central America

BMC Zoology ◽  
2020 ◽  
Vol 5 (1) ◽  
Author(s):  
A. Roberto-Charron ◽  
J. Kennedy ◽  
L. Reitsma ◽  
J. A. Tremblay ◽  
R. Krikun ◽  
...  
Keyword(s):  
Central America ◽  
Breeding Populations

scholarly journals Correction to: Winter home range and habitat selection differs among breeding populations of herring gulls in eastern North America

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Christine M. Anderson ◽  
H. Grant Gilchrist ◽  
Robert A. Ronconi ◽  
Katherine R. Shlepr ◽  
Daniel E. Clark ◽  
...  
Keyword(s):  
Habitat Selection ◽  
North America ◽  
Home Range ◽  
Eastern North America ◽  
Herring Gulls ◽  
Breeding Populations

scholarly journals Recombinant Modified Vaccinia Virus Ankara (MVA) Vaccines Efficiently Protect Cockatiels Against Parrot Bornavirus Infection and Proventricular Dilatation Disease

Viruses ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 1130 ◽  
Author(s):  
Isabell Rall ◽  
Ralf Amann ◽  
Sara Malberg ◽  
Christiane Herden ◽  
Dennis Rubbenstroth
Keyword(s):  
Vaccinia Virus ◽  
Challenge Infection ◽  
Control Group ◽  
Viral Loads ◽  
Breeding Populations ◽  
Modified Vaccinia Virus Ankara ◽  
Associated Lesions ◽  
Unvaccinated Control ◽  
Causative Agents ◽  
Proventricular Dilatation Disease

Parrot bornaviruses (PaBVs) are the causative agents of proventricular dilatation disease (PDD), a chronic and often fatal neurologic disorder in Psittaciformes. The disease is widely distributed in private parrot collections and threatens breeding populations of endangered species. Thus, immunoprophylaxis strategies are urgently needed. In previous studies we demonstrated a prime-boost vaccination regime using modified vaccinia virus Ankara (MVA) and Newcastle disease virus (NDV) constructs expressing the nucleoprotein and phosphoprotein of PaBV-4 (MVA/PaBV-4 and NDV/PaBV-4, respectively) to protect cockatiels (Nymphicus hollandicus) against experimental challenge infection. Here we investigated the protective effect provided by repeated immunization with either MVA/PaBV-4, NDV/PaBV-4 or Orf virus constructs (ORFV/PaBV-4) individually. While MVA/PaBV-4-vaccinated cockatiels were completely protected against subsequent PaBV-2 challenge infection and PDD-associated lesions, the course of the challenge infection in NDV/PaBV-4- or ORFV/PaBV-4-vaccinated birds did not differ from the unvaccinated control group. We further investigated the effect of vaccination on persistently PaBV-4-infected cockatiels. Remarkably, subsequent immunization with MVA/PaBV-4 and NDV/PaBV-4 neither induced obvious immunopathogenesis exacerbating the disease nor reduced viral loads in the infected birds. In summary, we demonstrated that vaccination with MVA/PaBV-4 alone is sufficient to efficiently prevent PaBV-2 challenge infection in cockatiels, providing a suitable vaccine candidate against avian bornavirus infection and bornavirus-induced PDD.

209 Prospecting genomic regions associated with columnaris disease in two rainbow trout breeding populations

2017 ◽  
Vol 95 (suppl_4) ◽  
pp. 103-104
Author(s):  
R. M. O. Silva ◽  
R. L. Vallejo ◽  
J. P. Evenhuis ◽  
T. D. Leeds ◽  
G. Gao ◽  
...  
Keyword(s):  
Rainbow Trout ◽  
Breeding Populations ◽  
Columnaris Disease ◽  
Genomic Regions
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