Changes in the earthworm community of an acidophilous lowland beech forest during a stand rotation

Deleporte, S.

doi:10.1016/s1164-5563(01)01065-2

Cited by 18 publications

(7 citation statements)

References 21 publications

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“…Litter depth probably also play a key role in the species response to stand age. On acid soil, beech litter accumulates as the stand ages in such a way that, at the end of the rotation, seedling survival may be poor (Deleporte 2001). Furthermore, high temperature and moisture, which could occur at a particular stage of stand development, together with active microbes and invertebrates, can lead to a faster litter decomposition and thus facilitate establishment of vegetation (Facelli and Pickett 1991).…”

Section: Discussionmentioning

confidence: 99%

Variation in the herb species response and the humus quality across a 200‐year chronosequence of beech and oak plantations in Belgium

2005

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Godefroid, S., Massant, W. and Koedam, N. 2005. Variation in the herb species response and the humus quality across a 200-year chronosequence of beech and oak plantations in Belgium. Á/ Ecography 28: 223 Á/235.The present study aimed at exploring the long-term impact of pure and mixed beech Fagus sylvatica and oak Quercus robur stands on the forest floor by documenting changes in the herb species' behaviour and in humus index across a 200-yr chronosequence of forest stands. The research was conducted in central Belgium, in a 4383 ha beech-dominated forest. Analyses were carried out in stands which are replicated, of the same age, managed in the same way, and growing on the same soil type with the same land-use history. The results of this study indicate that stand aging is an important determinant of herb species occurrence in the studied area. Most of the species studied show a different response to stand age in pure compared to mixed stands. Our results clearly show a decrease of the humus quality with age in pure stands (beech as well as oak). On the other hand, we found that mixing beech and oak maintained or improved the humus status along the chronosequence according to the proportion of each tree. So the addition of some oak to the beech made it possible to keep a constant quality of the humus. We found that, even if the understory tree species is very scarce, it may be sufficient to maintain the humus status on the long term. In the present study, a cover of 1% oak in a beech stand was sufficient to show an effect of the minor species on these soils. This pattern contrasts with the widespread idea that substantial effects of the minor tree species on soils might not develop if the ratio of major/minor species is low.

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Section: Discussionmentioning

confidence: 99%

Variation in the herb species response and the humus quality across a 200‐year chronosequence of beech and oak plantations in Belgium

2005

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“…In such systems, much attention has been paid to plant community diversity [5,12] and most works on soil detritivore invertebrates in forest ecosystems were description of species composition [20,26,27] or comparative studies of communities across humus types [3,47,48]. To date, only few authors addressed successional pathways during forest rotation [22,30,52].…”

Section: Introductionmentioning

confidence: 99%

Les assemblages de macro-invertébrés détritivores du sol d’une rotation de futaie de hêtre

et al. 2007

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-This work addresses the driving factors responsible for patterns in the detritivore macrofaunal communities of a managed beechwood chronosequence (28 to 197 years old, Normandy, France). We investigated the variation patterns of density, biomass and diversities of detritivore macrofauna throughout this rotation. Multivariate analyses were carried out to identify the main covariation patterns between species and some properties of their physical environment, and to describe the main ecological gradients constraining the macro-invertebrate community assembly. A total of 6 earthworm, 6 woodlouse and 7 millipede species were found in the whole data set. Density, biomass and diversity were profoundly influenced by forest ageing, mainly because of variation in humic epipedon spatial variability. Three groups of species were identified according to their environmental requirements. Some hypotheses regarding the external (related to management practices) or internal (related to inter-specific interactions) assembly rules behind species assemblages are proposed, an approach which has rarely been used in soil ecology. Finally, the impact of forestry practices on soil functioning through their impact on detritivore macro-invertebrate communities is discussed.soil detritivore macrofauna / community ecology / assembly rules / humic epipedon / forest management Résumé -Les assemblages de macro-invertébrés détritivores du sol d'une rotation de futaie de hêtre. Ce travail a pour but d'identifier les facteurs responsables des schémas de variation des communautés de la macrofaune detritivore d'une chronoséquence (28 à 197 ans) de futaie régulière de hêtre (Normandie, France). Les modèles de variation de la densité, la biomasse et la diversité ont été recherchés. Les modèles de covariation entre les espèces et certaines propriétés physiques du milieu ainsi que les gradients écologiques qui contraignent les assemblages de macro-détritivores ont été décrits à l'aide d'analyses multivariées. En tout, 6 espèces de vers de terre, 6 espèces d'isopodes et 7 espèces de diplopodes ont été identifiées. La maturation du peuplement de hêtre, principalement par les modifications de l'épisolum humifère, influence fortement les densité, biomasse et diversité. Trois groupes d'espèces sont identifiés sur la base de leurs exigences environnementales. Quelques hypothèses sont proposées quant aux règles externes (liées aux pratiques sylvicoles) et internes (liées aux relations interspéciques) qui contraignent la composition des assemblages d'espèces, cette approche ayant jusqu'à présent été peu utilisée en écologie du sol. Enfin, l'impact des pratiques sylvicoles sur le fonctionnement du sol, au travers de leur impact sur les communautés de macro-détritivores, est discuté. macrofaune detritivore du sol / écologie des communautés / règles d'assemblages / épisolum humifère / gestion forestière

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“…Earthworms are among the most important soil-dwelling invertebrates that their activity affects both biotic and abiotic soil properties (Van Groenigen et al,2014 andBashandy, 2019). More than 3500 species are recognized worldwide and further surveys expected this number to be much greater (Deleporte, 2001 andHendrix &Bohlen, 2002). Their casts, burrows and related intermediates are a very favorable micro-environment for microbial activity Hale &Host, 2005).…”

Section: Introductionmentioning

confidence: 99%

Towards Study of UV-C Radiation Effect on Earthworms and Isopods Via Electron Microscopy

El-Aziz

Ali

2021

Egyptian Academic Journal of Biological Sciences, B. Zoology

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Background and Objective: Ultraviolet (UV)radiation is the most significant modifiable risk factor for eye and skin disorders especially skin cancer, atrophy, pigment shifts, and wrinkling in many living organisms. So, this study is based on the detection of the cumulative effects of UV-C radiation on the earthworms (as an alternative model for human skin) and isopods (as an alternative model for the eye) coupled with scanning electron microscopic analysis (SEM). This study was designed for the assessment of human health implications and for the planning of safety measures for human beings. Materials and Methods: Random samples of earthworms and isopods were collected from different areas. Ten earthworms (Lumbricus castaneus) and fifteen isopods (Porcellio laevis) per set were put in a plastic container and were placed in four groups: control and three UV-C treated groups. The groups were exposed to UV-C for (15 min/day, 30 min/day and 60 min/day) for three consecutive days using a Laminar Flow UV (254 nm). However, the control group was kept under laboratory conditions and without exposure to UV-C. Morphological changes of earthworms and isopods were examined using SEM. Results: Mild changes appeared after exposure of earthworms and isopods to UV-C for 15 min/day. These changes are maximized after 30 min/day. Complete disappearance of the cell junctions in earthworms with sloughed tissue as well accumulation of crusts between junctions of the compound eye in isopods were observed after exposure for 60 min/day. Conclusion: For the first time, SEM analysis was established to detect the influence of UV-C radiation on earthworms and isopods. It was found that prolonged exposure to UV-C radiation induced severe damage and an increase in the mortality rate for both earthworms and isopods.

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Changes in the earthworm community of an acidophilous lowland beech forest during a stand rotation

Cited by 18 publications

References 21 publications

Variation in the herb species response and the humus quality across a 200‐year chronosequence of beech and oak plantations in Belgium

Variation in the herb species response and the humus quality across a 200‐year chronosequence of beech and oak plantations in Belgium

Les assemblages de macro-invertébrés détritivores du sol d’une rotation de futaie de hêtre

Towards Study of UV-C Radiation Effect on Earthworms and Isopods Via Electron Microscopy

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