@misc{Arpin_Pierre_Morphometric_2000,
 author={Arpin, Pierre},
 editor={Polska Akademia Nauk. Muzeum i Instytut Zoologii},
 copyright={Rights Reserved - Restricted Access},
 address={Warszawa},
 howpublished={online},
 year={2000},
 language={eng},
 abstract={Morphometric variability was studied in Prionchulus punctatusand Clarkus papillatus from closely related forest sites: Site 1 (eutrophic to calcic mull humus), site 2 (contiguous tosite 1, eutrophic mull humus with amore or less leached soil), site 3 (acid mull humus), site 4 (located in site 3 but just under the crown of an old oak, moder humus), site 7 (moder humus, developedin a wide area). Results from correspondence analysis for both nematode species from site 2 suggested two distinct population types (a) with small individuals (Pp: 1.85 ± 0.05 mm and 87.2±5.7 μm for body length and tail length respectively; Cp: 1.11±0.02 mm and 78.5±1.9 μm)with typical characteristics of populations collected from acalcic mull and (b) larger individuals (Pp: 2.14 ± 0.04 mm and 100.2 ± 1.8 μm for body length and tail length respectively; Cp:1.21±0.01 mm and 83.3±2.2μm) similar to populations collected from an eutrophic mull. Results from correspondence analysis from site 4 showed that the populations of the two species had intermediate characteristics between populations collected from a mull humus and from a moder humus. Moreover, a laboratory culturing experiment with adult Clarkus papillatus collected from site 3 and cultured on three humus forms (calcic mull, site 1; acid mull, site 3; moder, site 7) showed that this species reproduced successfully on mull acid only. The conjunctural or the structural influence on morphometric plasticity of these species is discussed from a functional ecology aspect.},
 title={Morphometric plasticity in Prionchulus punctatus (Cobb, 1917) Andrássy, 1958 and Clarkus papillatus (Bastian, 1865) Jairajpuri, 1970 (Nematoda: Mononchida): adaptation to different humus forms?},
 type={Text},
 volume={50},
 number={2},
 journal={Annales Zoologici},
 publisher={Muzeum i Instytut Zoologii PAN},
 keywords={Prionchulus punctatus, Clarkus papillatus, humus forms, Mononchida, morphometric plasticity, Nematoda},
}