scholarly journals Detection of earthworm prey by Ruff Philomachus pugnax

Ibis ◽  
2017 ◽  
Vol 159 (3) ◽  
pp. 647-656 ◽  
Author(s):  
Jeroen Onrust ◽  
A. H. Jelle Loonstra ◽  
Lucie E. Schmaltz ◽  
Yvonne I. Verkuil ◽  
Jos C. E. W. Hooijmeijer ◽  
...  
Keyword(s):  
Philomachus Pugnax

Immunocompetence and testosterone-induced condition traits in male ruffs (Philomachus pugnax)

2004 ◽  
Vol 54 (4) ◽  
pp. 315-329 ◽  
Author(s):  
◽  
Keyword(s):  
Body Size ◽  
Immune Function ◽  
Humoral Immunity ◽  
Mating Behaviour ◽  
Life History Strategy ◽  
Cell Mediated Immunity ◽  
Philomachus Pugnax ◽  
Mass Size ◽  
Phenotypic Condition ◽  
Two Measures

AbstractThe immune system is costly to operate, so we expect allocation to this function to relate to other indices of overall phenotypic condition. In captive male ruffs (Philomachus pugnax), we examine covariation between three seasonal male characteristics induced by testosterone (neck 'ruff', facial wattles, and increases in mass/size) and cell-mediated and humoral immunity. The ruff has two genetically distinct morphs of males, 'independents' and 'satellites', which differ in mating behaviour, somewhat in body size, and possibly life history strategy. Ruff length and wattle number were significantly correlated with each other and with body size, but unrelated to mass/size. Humoral immunity was weakly correlated with size, but not with secondary male traits, or with cell-mediated immunity. We did not detect differences in humoral immunity between morphs. Cell-mediated immunity was weakly correlated with ruff length, but not with wattle number, size, or mass/size. Cell-mediated immunity decreased significantly with age. Controlling for age, independents had higher cell-mediated immunity responses than satellites. The expected relationships between two measures of immune function and other measures of condition were not always present, which suggests we need more data and/or more specific predictions about how the different aspects of immune function relate to each other and to ecological variables.

scholarly journals Avian botulism at a sugar beet processing plant inSouth Moravia (CzechRepublic)

2012 ◽  
Vol 50 (No. 10) ◽  
pp. 443-445 ◽  
Author(s):  
Z. Hubalek ◽  
V. Skorpikova ◽  
D. Horal
Keyword(s):  
Sugar Beet ◽  
Bird Species ◽  
Processing Plant ◽  
Critically Endangered Species ◽  
Botulinum Type ◽  
Philomachus Pugnax ◽  
Vanellus Vanellus ◽  
Type C ◽  
South Moravia ◽  
Avian Botulism

An episode of mortality in waterbirds occurred on a sedimentation reservoir with effluents from the sugar beet processing plant at Hrusovany n.J. (South Moravia, Czech Republic) in summer 2003: tens of black-headed gulls (Larus ridibundus), several lapwings (Vanellus vanellus), one little ringed plover (Charadrius dubius), one ruff (Philomachus pugnax), one wood sandpiper (Tringa glareola), and two avocets (Recurvirostra avosetta) died. One of the two avocets and the plover, local breeders, were examined and found positive for Clostridium botulinum type C toxin by use of the toxin-neutralization test. Avocet is classified as a rare bird species according to Red Book data and is listed as critically endangered species in theCzechRepublic, and is therefore protected. Avian botulism can occasionally cause deleterious effects to waterbird fauna and its protection.

Isolation, characterization and predicted genome locations of ruff (Philomachus pugnax, AVES) microsatellite loci

2012 ◽  
Vol 4 (3) ◽  
pp. 763-771 ◽  
Author(s):  
Lindsay L. Farrell ◽  
Deborah A. Dawson ◽  
Gavin J. Horsburgh ◽  
Terry Burke ◽  
David B. Lank
Keyword(s):  
Microsatellite Loci ◽  
Predicted Genome Locations ◽  
Philomachus Pugnax

Ruffs, Philomachus pugnax, and Distribution Models: Can Leks Be Regarded as Patches?

Oikos ◽  
1998 ◽  
Vol 82 (2) ◽  
pp. 370 ◽  
Author(s):  
Jacob Höglund ◽  
Fredrik Widemo ◽  
William J. Sutherland ◽  
Helena Nordenfors ◽  
Jacob Hoglund
Keyword(s):  
Distribution Models ◽  
Philomachus Pugnax
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