Temporal changes in abundance–occupancy relationships within and between communities after disturbance
Pourquoi ce travail est dans la base
Une base qui oublie comment elle a trouvé un travail ne peut pas être vérifiée. Voici les voies qui ont admis celui-ci.
Notice bibliographique
Résumé
Abstract Questions A positive relationship between abundance and occupancy of species ( AOR ) is commonly observed in ecological communities, but the mechanisms driving this pattern are elusive. Succession after disturbance is an important factor structuring many plant communities, yet little is known about how and if this may shape AOR s, and if AOR s change over time within and between plant communities. Do AOR s change through time as a plant community recovers from disturbance? Do patterns in AOR differ between plant communities? Location Prince Albert National Park, Saskatchewan, Canada. Methods Changes in AOR were evaluated through time following prescribed burning of fescue grassland and adjacent forest transition plant communities invaded by Populus tremuloides Michx. using a 35‐yr data set. Species presence data were used as a frequency measure of abundance and mean species cover was used as a relative measure for abundance. Species data used for the abundance and occupancy measures were collected in permanent sampling plots prior to burning in 1975, and after burning in 1983, 1995 and 2010. Results Changes in grassland AOR s based on the frequency were shown through time since disturbance, as an increase in abundance relative to occupancy occurred in 1983 and 2010. There was no significant change in grassland AOR s when the relative abundance data were used. The forest transition AOR based on frequency showed the 1983 post‐burn AOR had lower abundance relative to occupancy, while the relative abundance measure showed the pre‐burn 1975 AOR had lower abundance relative to occupancy. The removal of litter, changes in soil resources and increase in trembling aspen suckering after fire may have caused changes to plant community structure after burning, explaining differing AOR patterns in the grassland and forest transition plant communities. Conclusions Although exact mechanisms behind the observed changes in AOR are hard to determine, the phenomenon of change within and between communities over time since disturbance has not previously been documented. The observed differences in AOR between frequency and relative abundance indicate that measures of abundance should be chosen cautiously. Post‐disturbance succession should be considered as a mechanism influencing AOR s in communities impacted by disturbance.
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.
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 | 0,002 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,001 |
| Communication savante | 0,000 | 0,001 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
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 découle