Marsh Ecology Research Program (MERP): Conditioning period litter bag study data (1980-1981)
Notice bibliographique
Résumé
The Marsh Ecology Research Program (MERP) was a long-term interdisciplinary study on the ecology of prairie wetlands. A scientific team from a variety of disciplines (hydrology, plant ecology, invertebrate ecology, vertebrate ecology, nutrient dynamics, marsh management) was assembled to design and oversee a long-term experiment on the effects of water-level manipulation on northern prairie wetlands. Ten years of fieldwork (1980 -1989), combining a routine long-term monitoring program and a series of short-term studies, generated a wealth of new and diverse information on the ecology and function of prairie wetlands (Murkin, Batt, Caldwell, Kadlec and van der Valk, 2000). This data package includes the litter bag study conducted during the conditioning period of MERP, as part of the decomposition section of the study. The high primary productivity in wetlands ensures that plant litter production and decomposition are important factors in wetland nutrient budgets. There are 3 components of the litter pool in prairie wetlands: standing litter, fallen litter, and dissolved organic compounds that leach from both standing and fallen litter (Davis and van der Valk, 1978). Material enters the standing litter compartment with the death of the leaf or shoots. In prairie marshes, litter is transferred from the standing litter compartment to fallen litter primarily through fragmentation by wind, snow, and ice action. In areas of high muskrat activity, feeding and house building can result in living plant tissues directly entering the fallen litter stage. Once within the fallen litter compartment, decomposition rates increase due to the growth of bacteria, fungi, and other consumers on the litter particles. (Murkin, van der Valk and Nelson, 1989). The MERP decomposition studies are a series of short-term studies examining the decomposition rates of both above- and belowground components of the dominant emergent species and the transfer of litter from the standing to the fallen litter compartment within the experimental cells (Murkin, van der Valk and Nelson, 1989). Three types of decomposition studies were conducted: litterbag studies, dead standing litter (clip plot) studies and matching stems (permanent clips) studies. The objective of the conditioning period litter bag study was to explore the impact of flooding on litter decomposition and the impact of age on the decomposition of litter when flooded. For further information on the Marsh Ecology Research Program (MERP), please visit: http://www.ducks.ca/conserve/research/projects/merp/index.html References: Davis, C.B. and van der Valk. 1978. The decomposition of standing and fallen litter of Typha glauca and Scirpus fluviatilis. Can. J. Bot. 56: 662-675. Murkin, H.R., B.D.J. Batt, P.J. Caldwell, J.A. Kadlec and A.G. van der Valk. 2000a. Introduction to the Marsh Ecology Research Program. In Prairie Wetland Ecology: The Contribution of the Marsh Ecology Research Program. (Eds) H.R. Murkin, A.G. van der Valk and W.R. Clark. pp. 3-15. Ames: Iowa State University Press. Resulting Publications on MERP Decomposition studies: Murkin, H.R., A.G. van der Valk and C.B. Davis. 1989. Decomposition of four dominant macrophytes in the Delta Marsh, Manitoba. Wildl. Soc. Bull. 17: 215-221. van der Valk, A.G., J.M. Rhymer, H.R. Murkin. 1991. Flooding and the decomposition of litter of four emergent plant species in a prairie wetland. Wetlands 11 (1): 1-16. Wrubleski, D.A., H.R. Murkin, A.G. van der Valk and C.B. Davis. 1997. Decomposition of litter of three mudflat annual species in a northern prairie marsh during drawdown. Plant Ecology 129: 141-148. Wrubleski, D.A., H.R. Murkin, A.G. van der Valk and J.W. Nelson. Decomposition of Plant Litter in a Newly Flooded Northern Prairie Marsh. Unpublished manuscript. Wrubleski, D.A., H.R. Murkin, A.G. van der Valk and J.W. Nelson. 1997. Decomposition of emergent macrophyte roots and rhizomes in a northern prairie marsh. Aquatic Botany 58: 121-134. Additional MERP Publications on Decomposition Studies Neckles, H.A. and C. Neill. 1994. Hydrologic control of litter decomposition in seasonally flooded prairie marshes. Hydrobiologia 286: 155-165. Nelson, J.W., J.A. Kadlec and H.R. Murkin. 1990. Seasonal comparisons of weight loss for two types of Typha glauca Godr. leaf litter. Aquatic Botany 37: 299-314. Nelson, J.W., J.A. Kadlec and H.R. Murkin. 1990. Responses by macroinvertebrates to cattail litter quality and timing of litter submergence in a northern prairie marsh. wetlands 10: 47-60.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,009 | 0,002 |
| Méta-épidémiologie (sens strict) | 0,002 | 0,002 |
| Méta-épidémiologie (sens large) | 0,002 | 0,000 |
| Bibliométrie | 0,002 | 0,002 |
| Études des sciences et des technologies | 0,001 | 0,002 |
| Communication savante | 0,001 | 0,001 |
| Science ouverte | 0,010 | 0,010 |
| Intégrité de la recherche | 0,002 | 0,006 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,019 | 0,097 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; les deux têtes enseignantes s’accordent sur ce qui est montré ici.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».