کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9445251 | 1304282 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Charcoal consumption and casting activity by Pontoscolex corethrurus (Glossoscolecidae)
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
بوم شناسی، تکامل، رفتار و سامانه شناسی
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چکیده انگلیسی
The endogeic earthworm Pontoscolex corethrurus (Glossoscolecidae) is a peregrine species commonly found in tropical lands cleared by man for cultivation. We compared the charcoal consumption and casting activity of a population of P. corethrurus from a cultivated area under repeated slash-and-burn (fallow population) with that of a population from a field cultivated after recent burning of a mature forest (forest population). Their cast production was measured in containers in the presence of pure charcoal, soil of fallow and forest origin, or a mixture of charcoal and soil. The forest population defecated less in pure charcoal than in forest soil, whereas the reverse was observed for the fallow population. When living in fallow soil, both populations defecated more at the surface of a mixture of charcoal and soil than at the surface of pure soil (Ã2 and Ã3 with fallow and forest populations, respectively). In forest soil, both populations showed an increased charcoal consumption (Ã12). In the light of these experiments, we hypothesized that an adaptation of P. corethrurus to charcoal and fallow soil exists, supporting the observed distribution of this earthworm species in tropical open lands.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Soil Ecology - Volume 28, Issue 3, March 2005, Pages 217-224
Journal: Applied Soil Ecology - Volume 28, Issue 3, March 2005, Pages 217-224
نویسندگان
Stéphanie Topoliantz, Jean-François Ponge,