Inconsistent Variations in Components of Functional Stability Under Heterogeneous Conditions: A Case Study from the Maolan Karst Forest Ecosystems in Guizhou Province, Southwest of China

Forests, Journal Year: 2025, Volume and Issue: 16(2), P. 304 - 304

Published: Feb. 9, 2025

Human-induced environmental changes threaten the functional stability of natural forest ecosystems. Understanding dominant factors influencing both space and in extremely heterogeneous environments is crucial for elucidating Here, 30 dynamic plots were established along successional pathway Maolan National Nature Reserve Southwest China. By measuring 15,725 stems across 286 distinct species’ six key plant traits, we constructed traits quantified redundancy (FR) vulnerability (FV) to represent stability, further utilized line model multiple linear regression explore biotic/abiotic indicators degraded karst forests. Additionally, as unfolded, contribution overall increased, from 59.85% 66.64%. These included specific leaf area (SLA), dry matter content (LDMC), thickness (LT) nitrogen (LNC), which played a role driving space. With increasing species richness (FR), entities (p < 0.001) FR while FV 0.01) decreased. The results also demonstrated higher forests (FR > 2). However, over 51% FEs consisted single species, with majority clustered into few (FEs), indicating an elevated level Soil nutrient availability significantly influences ecosystem’s explaining 87% variability 100% variability. Finally, rich SR could provide sufficient insurance effects; soil pH available potassium (AK) enhance resilience, exchangeable calcium (Eca), total phosphorus (TP) (TK) indicate resistance This study highlights complex mechanisms extreme habitat conditions, thereby deepening our understanding ecosystem function maintenance.

Language: Английский

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Diversity responses to precipitation gradients differ between older and younger islands of Hawai‘i

Frontiers of Biogeography, Journal Year: 2025, Volume and Issue: 18

Published: Feb. 28, 2025

Studying the interaction between macroevolutionary and ecological factors is critical for understanding principles of diversity regulation predicting effects human activities. Here, we use geological chronology Hawaiian archipelago as a testbed to examine island age climatic (i.e., precipitation) on contemporary patterns tree taxonomic diversity. To this end, estimated species from 375 forest plots spread across steep precipitation gradients different substrate ages younger (Hawai‘i; ~ 0.5 million years old), an intermediate-aged (Maui Nui complex; 2 older (O‘ahu; 3 old). We found clear positive relationship oldest (O‘ahu), but no such two islands (islands in Maui complex Hawai‘i). also high turnover drier wetter environments island, which suggests specialization these habitat types, not islands. However, when included that were highly invaded by alien species, effect varied had larger This could be because may more vulnerable invasions. Our results suggest response climate variation differs substantially Islands, possibly differences islands; however, biological invasions are degrading signature. Local responses gradient stronger likely due longer timescales processes. Species distinct conditions varies archipelago, with exhibiting greater precipitation-driven specialization. Alien alter local precipitation, particularly youngest archipelago. The presence modifying pattern conditions, dry mesic habitats intermediate-age showing higher turnover. Biological currently reshaping plant

Language: Английский

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Soil functional microbes can modify the plant functional diversity mainly through changing the plant functional traits of evergreen species in karst forests

Plant and Soil, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Language: Английский

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Drivers and benefits of natural regeneration in tropical forests

Published: April 21, 2025

Language: Английский

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