Changes in Breeding Populations of Pelagic Birds in the Gulf of Georgia, B. C.

The Murrelet ◽  
1956 ◽  
Vol 37 (2) ◽  
pp. 22 ◽  
Author(s):  
Theed Pearse

2018 ◽  
Vol 51 (1) ◽  
Author(s):  
Mehdi Taghizadegan ◽  
Mahmoud Toorchi ◽  
Mohammad Moghadam Vahed ◽  
Samar Khayamim


2009 ◽  
Vol 160 (11) ◽  
pp. 334-340 ◽  
Author(s):  
Pierre Mollet ◽  
Niklaus Zbinden ◽  
Hans Schmid

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.



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


2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Christine M. Anderson ◽  
H. Grant Gilchrist ◽  
Robert A. Ronconi ◽  
Katherine R. Shlepr ◽  
Daniel E. Clark ◽  
...  


1975 ◽  
Vol 41 (1) ◽  
pp. 1-8 ◽  
Author(s):  
L. L. Darrah ◽  
L. H. Penny


Viruses ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 1130 ◽  
Author(s):  
Isabell Rall ◽  
Ralf Amann ◽  
Sara Malberg ◽  
Christiane Herden ◽  
Dennis Rubbenstroth

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.



Crop Science ◽  
1979 ◽  
Vol 19 (2) ◽  
pp. 185-188 ◽  
Author(s):  
C. S. Schoener ◽  
W. R. Fehr


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 ◽  
...  


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