Eggshell Thinning in the Peregrine, Falco Peregrinus (Aves: Falconidae), in Australia.

1979 ◽  
Vol 6 (2) ◽  
pp. 217 ◽  
Author(s):  
P Olsen ◽  
J Olsen
Keyword(s):  
Peregrine Falcon ◽  
Falco Peregrinus ◽  
Eggshell Thinning

From measurement of 472 eggs of the peregrine falcon (Falco peregrinus) collected in Australia between 1885 and 1977 inclusive, shells were thinner by 10.4 to 38% after 1947-49 and corresponded with the introduction of DDT into Australia. Victoria seemed to have the greatest mean thinning.

ORGANOCHLORINE RESIDUES AND EGGSHELL THINNING IN THE PEREGRINE FALCON FALCO PEREGRINUS MINOR IN ZIMBABWE

Ostrich ◽  
1995 ◽  
Vol 66 (2-3) ◽  
pp. 69-73 ◽  
Author(s):  
R. R. Hartley ◽  
I. Newton ◽  
M. Robertson
Keyword(s):  
Peregrine Falcon ◽  
Falco Peregrinus ◽  
Eggshell Thinning

scholarly journals The Danish Peregrine Falcon population: Reestablishment and eggshell thinning

2018 ◽  
Vol 26 (2) ◽  
pp. 159-163 ◽  
Author(s):  
Niels Peter Andreasen ◽  
Knud Falk ◽  
Søren Møller
Keyword(s):  
Power Plants ◽  
Small Population ◽  
Peregrine Falcon ◽  
Falco Peregrinus ◽  
Nest Boxes ◽  
Historic Time ◽  
Peregrine Falcons ◽  
Eggshell Thinning ◽  
Breeding Attempt

Abstract Denmark being a country with only a few suitable steep nesting cliffs has only harboured a small population of Peregrine Falcons (Falco peregrinus) in historic time. In the previous century, the population gradually declined due to persecution, egg and young collection, and pollution. The last breeding attempt in the 20th century occurred in 1972 in southeastern Denmark. No new breeding attempts were recorded in Denmark until 2001 but since then the population has gradually increased – most rapidly since 2012 – to a peak of 24 territorial pairs in 2018; some of them breeding on man-made structures (nest boxes at bridges and power plants). Here we update the information on the reestablishment of the Peregrine Falcon in Den-mark, including origin and dispersal, reproduction, and eggshell thinning.

DDE-induced eggshell thinning: an environmental detective story

1993 ◽  
Vol 1 (1) ◽  
pp. 13-20 ◽  
Author(s):  
David B. Peakall
Keyword(s):  
Peregrine Falcon ◽  
Personal Account ◽  
Falco Peregrinus ◽  
Detective Story ◽  
Toxicological Effects ◽  
Eggshell Thinning ◽  
Holarctic Region ◽  
The 1950S ◽  
The Relationship ◽  
Legal Battle

This is a personal account of the investigation of DDE-induced eggshell thinning and the subsequent use of this information in the legal battle over the banning of DDT. The article focuses on the toxicological effects of DDT on the peregrine falcon, Falco peregrinus, although the effects on other species are briefly considered. The peregrine falcon population crashed throughout the Holarctic region in the 1950s and 1960s. Eggshell thinning was discovered in British peregrines in 1967 and was soon found to be a global phenomenon. The relationship between dichlorodiphenyldichloroethylene (DDE) residues and eggshell thinning was established by the beginning of the 1970s. Information on the effect of DDE on the peregrine falcon formed an important part of the evidence that led to the banning of DDT, and since a ban has been implemented in many countries the peregrine populations have improved in most areas.Key words: peregrine falcon, DDE, eggshell thinning.

Retrobulbar rhabdomyosarcoma in a neotropical peregrine falcon (Falco peregrinus cassini)

2013 ◽  
Vol 17 (1) ◽  
pp. 73-75 ◽  
Author(s):  
Michelle J. Freundt Coello ◽  
Lee S. Schaeffer
Keyword(s):  
Peregrine Falcon ◽  
Falco Peregrinus

scholarly journals Population trends and diversification of breeding habitats of Peregrine Falcon (Falco peregrinus) in the Czech Republic since 1990

2018 ◽  
Vol 26 (2) ◽  
pp. 121-129
Author(s):  
Václav Beran ◽  
Josef Vrána ◽  
David Horal
Keyword(s):  
Czech Republic ◽  
Breeding Habitat ◽  
Peregrine Falcon ◽  
German Population ◽  
Falco Peregrinus ◽  
The Czech Republic ◽  
Nest Boxes ◽  
Industrial Buildings ◽  
The 1960S ◽  
Population Restoration

Abstract The population of the Peregrine Falcon (Falco peregrinus) in the Czech Republic recovered from a nearly total extinction during the 1960s and 1980s (0­3 breeding pairs) and the first successful breeding after this interval was confirmed in 1995. The increase of the population size accelerated after 2000 and it is still growing despite the limited amount of suitable natural breeding opportunities. There were 89 known pairs in 2016, 70 of them were proven to breed with altogether at least 121 reared young. Several breeding attempts on historical buildings in city­centres were recorded up to 2002 (in Prague and Pilsen), but this breeding habitat was abandoned later. More and more pairs are nowadays breeding on industrial buildings. The first breeding on a power plant chimney, 300m above the ground was discovered in 2010. Moreover, 16 breeding pairs were found on industrial buildings in 2016 (mainly tall chimneys or cooling towers and power­plant buildings), all of them breeding in nest boxes. The colonization of industrial buildings started in western part of the Czech Republic and continues eastwards every year. Currently, the easternmost colonized building is in Mladá Boleslav. We have no recent tree­breeding pairs and all eight published historical cases are at least doubtful. Most of the observed Peregrines ringed abroad came from Germany, indicating a strong influence of German population on restoration of the population in the Czech Republic. Within these recoveries, some of Peregrines were released in the tree­breeding population restoration project in Germany and Poland, but all these birds bred on rocks.

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