Opposing community assembly patterns for dominant and jonnondominant plant species in herbaceous ecosystems globally
| Autor: | Anke Jentsch, Anu Eskelinen, Rebecca L. McCulley, Ramesh Laungani, Joslin L. Moore, Yann Hautier, Johannes M. H. Knops, Aveliina Helm, Risto Virtanen, Eric W. Seabloom, Elizabeth H. Boughton, Jodi N. Price, Yvonne M. Buckley, Miguel N. Bugalho, Juan Alberti, Karina L. Speziale, Elizabeth T. Borer, Selene Báez, Jennifer Firn, Lauri Laanisto, John M. Dwyer, Sally A. Power, Carlos Alberto Arnillas, Marc W. Cadotte, Kimberly J. Komatsu, Mahesh Sankaran, Nicole Hagenah, John W. Morgan, Pablo Luis Peri, Riley Gridzak, Brandon S. Schamp, Jonathan D. Bakker, Ian Donohue, Rachel J. Standish |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Evolution Niche Biodiversity Biology 010603 evolutionary biology 01 natural sciences phylogenetic relatedness Patrones de Ensable de Comunidades Behavior and Systematics Phylogenetics evolutionary strategies species dominance Ecosystem Dominant Species QH540-549.5 Research Articles Phylogeny Ecology Evolution Behavior and Systematics Nutrientes biodiversity Nature and Landscape Conservation Abiotic component 2. Zero hunger Phylogenetic tree Ecology Pastures grasslands Plant community Nutrients 15. Life on land Factores Bióticos Pastizales species nondominance Abiotic Factors Nutrient Network Filogenia Community Assembly Patterns Biotic Factors Trait community assembly Especies Dominantes Factores Abióticos 010606 plant biology & botany Research Article |
| Zdroj: | Ecology and Evolution, 11(24), 17744. Wiley Ecology and Evolution 11 (24) : 17744-17761 (December 2021) INTA Digital (INTA) Instituto Nacional de Tecnología Agropecuaria instacron:INTA Ecology and Evolution Ecology and Evolution, Vol 11, Iss 24, Pp 17744-17761 (2021) |
| ISSN: | 2045-7758 |
| Popis: | Biotic and abiotic factors interact with dominant plants—the locally most frequent or with the largest coverage—and nondominant plants differently, partially because dominant plants modify the environment where nondominant plants grow. For instance, if dominant plants compete strongly, they will deplete most resources, forcing nondominant plants into a narrower niche space. Conversely, if dominant plants are constrained by the environment, they might not exhaust available resources but instead may ameliorate environmental stressors that usually limit nondominants. Hence, the nature of interactions among nondominant species could be modified by dominant species. Furthermore, these differences could translate into a disparity in the phylogenetic relatedness among dominants compared to the relatedness among nondominants. By estimating phylogenetic dispersion in 78 grasslands across five continents, we found that dominant species were clustered (e.g., co‐dominant grasses), suggesting dominant species are likely organized by environmental filtering, and that nondominant species were either randomly assembled or overdispersed. Traits showed similar trends for those sites ( We found a prevalent disparity between the dominant and nondominant species (measured as the standardized effect size of the mean nearest taxonomic distance), with the former more clustered than the latter, suggesting a disparity in the mechanisms organizing both groups. We also found several clades more likely to have nondominant species than dominant species, measured as the probability of finding a species of a given clade among the third less abundant species in the sites where that clade occurred. Unexpectedly, many nondominant clades have a large number of species, mainly were comprised of nonwoody species, and often appeared in the phylogeny. Together, these findings suggest dominance and nondominance are conserved and that their differences have ecological consequences. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text