Prey depletion by the foraging of the Eurasian treecreeper, Certhia familiaris, on tree-trunk arthropods

Oecologia ◽  
2001 ◽  
Vol 128 (4) ◽  
pp. 488-491 ◽  
Author(s):  
Ari Jäntti ◽  
Teija Aho ◽  
Harri Hakkarainen ◽  
Markku Kuitunen ◽  
Jukka Suhonen
Keyword(s):  
Tree Trunk ◽  
Certhia Familiaris ◽  
Eurasian Treecreeper ◽  
Prey Depletion

scholarly journals Fluctuating feather asymmetry in relation to corticosterone levels is sex-dependent in Eurasian treecreeper ( Certhia familiaris ) nestlings

2010 ◽  
Vol 6 (4) ◽  
pp. 521-524 ◽  
Author(s):  
Samuli Helle ◽  
Petri Suorsa ◽  
Esa Huhta ◽  
Harri Hakkarainen
Keyword(s):  
Plasma Levels ◽  
Developmental Trajectory ◽  
Stress Hormone ◽  
Vertebrate Species ◽  
Free Living ◽  
Phenotypic Marker ◽  
Individual Level ◽  
Certhia Familiaris ◽  
Specific Association ◽  
Eurasian Treecreeper

Fluctuating asymmetry (FA) has been widely used as a stress-related phenotypic marker of developmental instability. However, previous studies relating FA to various stressful conditions have produced inconsistent results and we still lack quantitative individual-level evidence that high FA is related to stress in wild vertebrate species. We studied how baseline plasma levels of corticosterone predicted FA of wing and tail feathers in free-living Eurasian treecreeper ( Certhia familiaris ) nestlings. We found a sex-specific association between corticosterone levels and FA: high corticosterone levels were related to an increased FA in male but not in female nestlings. These results suggest that in treecreepers, FA may correlate with individual stress hormone levels, male developmental trajectory being potentially more sensitive to stress than that of the female.

Thresholds in selection of breeding habitat by the Eurasian treecreeper (Certhia familiaris)

2005 ◽  
Vol 121 (3) ◽  
pp. 443-452 ◽  
Author(s):  
Petri Suorsa ◽  
Esa Huhta ◽  
Ari Jäntti ◽  
Ari Nikula ◽  
Heikki Helle ◽  
...  
Keyword(s):  
Breeding Habitat ◽  
Certhia Familiaris ◽  
Eurasian Treecreeper ◽  
Selection Of
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