Academic Journal
Testing the hierarchy of predictability in grassland restoration across a gradient of environmental severity
| العنوان: | Testing the hierarchy of predictability in grassland restoration across a gradient of environmental severity |
|---|---|
| المؤلفون: | Bertuol-Garcia, D., Ladouceur, Emma, Brudvig, L.A., Laughlin, D.C., Munson, S.M., Curran, M.F., Davies, K.W., Svejcar, L.N., Shackelford, N. |
| المصدر: | ISSN: 1051-0761. |
| بيانات النشر: | Ecological Society of America (ESA), Washington, DC Ecological Applications 33 (8);; e2922 |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Aridity, community composition, ecological restoration, functional composition, grasslands, physical structure, restoration outcomes, restoration success, richness |
| الوصف: | Ecological restoration is critical for recovering degraded ecosystems but is challenged by variable success and low predictability. Understanding which outcomes are more predictable and less variable following restoration can improve restoration effectiveness. Recent theory asserts that the predictability of outcomes would follow an order from most to least predictable from coarse to fine community properties (physical structure > taxonomic diversity > functional composition > taxonomic composition), and that predictability would increase with more severe environmental conditions constraining species establishment. We tested this “hierarchy of predictability” hypothesis by synthesizing outcomes along an aridity gradient with 11 grassland restoration projects across the United States. We used 1829 vegetation monitoring plots from 227 restoration treatments, spread across 52 sites. We fit generalized linear mixed-effects models to predict six indicators of restoration outcomes as a function of restoration characteristics (i.e., seed mixes, disturbance, management actions, time since restoration) and used variance explained by models and model residuals as proxies for restoration predictability. We did not find consistent support for our hypotheses. Physical structure was among the most predictable outcomes when the response variable was relative abundance of grasses, but unpredictable for total canopy cover. Similarly, one dimension of taxonomic composition related to species identities was unpredictable, but another dimension of taxonomic composition indicating whether exotic or native species dominated the community was highly predictable. Taxonomic diversity (i.e., species richness) and functional composition (i.e., mean trait values) were intermittently predictable. Predictability also did not increase consistently with aridity. The dimension of taxonomic composition related to the identity of species in restored communities was more predictable (i.e., smaller residuals) in more arid sites, but ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | https://doi.org/10.5683/SP3/ZMUWWC; https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=28062; https://dx.doi.org/10.1002/eap.2922 |
| DOI: | 10.1002/eap.2922 |
| الاتاحة: | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=28062 https://doi.org/10.1002/eap.2922 |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.3F158527 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/eap.2922 |
|---|