Spatial heterogeneity of fire and flooding patterns can support higher diversity of floral functional traits in an indigenous‐managed landscape

Plant Species Biology, Journal Year: 2024, Volume and Issue: 39(6), P. 336 - 350

Published: Aug. 11, 2024

Abstract In tropical wetlands, in addition to flooding, fire also contributes the structure of biodiversity across environmental gradients. fire‐prone ecosystems, flower‐rich refuges can be maintained by a seasonal patch‐burning mosaic. Here, we evaluate how set floral traits that influence and are related pollination systems tree non‐tree species varies response spatial patterns frequency landscape with floodable flood‐free areas. We classified sampled according flower size, color, shape, symmetry, resource, type units, flowering duration, anthesis time compared them between areas high, moderate, or low frequency. analyzed functional richness metrics The composition was stable, while differed among classes, especially Many ecological indicators, high contrast, species, only tissues as resources for pollinator were moderate/high positively linked modified Simpson diversity index, both trees non‐trees, it negatively associated homogenization (e.g., connectance based on probability two adjacent sites belong same class traits). These results demonstrate decreases richness. Patches different combinations flood regime support shared besides those specifically particular regime. heterogeneity wetlands needs preserved higher mediated complementarity flowers species.

Language: Английский

Plant-pollinator network in a vereda ecosystem: Tree and non-tree species differ in their temporal importance

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 2, 2024

Ecological interactions are fundamental to community structure and ecosystem functioning. Due temporal variation in resource availability, it is important understand how these vary different seasons. We investigated plant-pollinator a vereda formation temporally, the habit floral attributes of plants groups pollinators can contribute interaction network. The study was conducted Rio Pandeiros Environmental Protection Area (EPA Pandeiros), on species from plant Almescla, located municipality Bonito de Minas, Minas Gerais, Brazil. Collections were carried out September 2022 February 2023. Plant with flowers sampled, their analyzed. visitors had behavior observed, collected stored for identification. used mono - multilayer ecological network analyses structured between As result, dry season significantly more specialized, possibly due lower availability. Overall, tree structure. However, when evaluated seasons, non-tree rainy maintain pollinator diversity. Here, we demonstrate first time, using analysis, seasons formation. highlight importance asynchrony availability resources during periods, which contributes maintenance both

Language: Английский