Análisis de la diversidad genética en poblaciones fragmentadas y continuas de <i>Aspidosperma quebracho-blanco</i> (Apocynaceae) del Chaco Semiárido DOI Creative Commons
Noelia E. A. Almirón, Viviana G. Solís Neffa

Boletín de la Sociedad Argentina de Botánica, Journal Year: 2024, Volume and Issue: 59(4)

Published: Dec. 27, 2024

Background and aims: The loss fragmentation of the Chaco Forest due to deforestation could affect genetic diversity species. Previous analyses Aspidosperma quebracho-blanco, an emblematic forest species region, suggested that populations in northern Semi-arid Argentina are interest for situ conservation restoration. Thus, we analyzed structure fragmented continuous quebracho-blanco from this region assess risk erosion role habitats M&M: Using 4 AFLP marker combinations, variability 49 individuals 2 3 A. were analyzed. This analysis was conducted context territorial planning, considering distribution protected areas, ecological corridors, land use, area fragments. Results: differences estimated indices between studied not significant (pHe=0.62, pSh=0.53, p%P=0.68). is moderate correlates with distance populations. most vulnerable located areas where use allowed. Conclusions: fragments important quebracho-blanco. However, short term, ecological, demographic factors may have a greater impact on viability its than caused by fragmentation.

Language: Английский

Plant trait approach to assess the vulnerability of Rhododendron arboreum in western Himalayas DOI Creative Commons
Rajiv Pandey, Monika Rawat, Rajat Singh

et al.

Environmental and Sustainability Indicators, Journal Year: 2024, Volume and Issue: 23, P. 100415 - 100415

Published: May 27, 2024

Climate change is profoundly impacting Himalayan ecosystems, with substantial challenges to keystone species like Rhododendron arboreum. Present study attempted investigate R. arboreum response varying environmental conditions at altitudes between 1500 3000 m in three western temperate forests, through evaluating plant functional traits. IPCC's internal vulnerability framework, characterised by two dimensions: sensitivity and adaptive capacity was applied. Structural Equation Modelling (SEM) applied elucidate the relationship traits dimensions. Sensitivity analysed using sub components Light Harvesting, Nutrient Gas Fluxes, while Resource Efficiency, Architecture Defence, Limitation Facilitation. The results revealed high (0.64) moru oak moist deciduous forests (0.59), ban (0.54). SEM Models for were significant. exhibited positively significant influence of Fluxes path coefficient 1.07 0.80, respectively. Adaptive showed a positive negative Facilitation, 0.94, 0.42 -0.11, Overall, changes shaped complex interplay physical characteristics (morphological), biological functions (physiological), interactions surroundings (ecological). These insights underscore importance understanding trait dynamics effective forest management strategies amidst changing conditions.

Language: Английский

Citations

2

Assessment of habitat features modulated carbon sequestration strategies for drought management in tropical dry forest fragments DOI
Rupesh Chaturvedi, Anshuman Tripathi, Rajiv Pandey

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 951, P. 175703 - 175703

Published: Aug. 23, 2024

Language: Английский

Citations

1

Evidences of phenotypic plasticity, and lack of local adaptation and clinal differentiation in invasive Ageratina adenophora from Uttarakhand Himalaya DOI
Kavita Khatri, Kiran Bargali, Bhawna Negi

et al.

Environment Development and Sustainability, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 29, 2024

Language: Английский

Citations

1

Shifts in the ecological drivers influence the response of tree and soil carbon dynamics in central Himalayan forests DOI
Anand Shankar, Satish Chandra Garkoti

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 373, P. 123755 - 123755

Published: Dec. 18, 2024

Language: Английский

Citations

1

Assessing population diversity and compositional structure in forests in Pachmarhi Biosphere Reserve, Central India DOI
Gajendra Kumar, Amit Kumar, Purabi Saikia

et al.

Deleted Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 1, 2024

Language: Английский

Citations

0

Assessment of Habitat Features Modulated Carbon Sequestration Strategies for Drought Management in Tropical Dry Forest Fragments DOI
Rupesh Chaturvedi, Anshuman Tripathi, Rajiv Pandey

et al.

Published: Jan. 1, 2024

Habitat features, such as species diversity, functional tree size and disturbances have variable impacts on carbon (C) storage sequestration in forest ecosystems, however, uncertainty still prevails about the understanding of strategies modulating C-sequestration capacity, particularly fragmented forests. We classified trees across tropical dry fragments into drought avoiding tolerant attempted to answer questions: (1) What are differences between for variations stem density, relative growth rate (RGR), C-storage C-sequestration, disturbance indicators along fragmentation gradient? (2) responses indicators? On decreasing edge distance fragments, showed a significant decline RGR, C-stock, diversity indicators, while considerable increase indicators. Between strategies, we found high degree slope associations above variables with fragments. For predicting sequestration, were strongly strategy, strategy. Since forests largely ignored ecological evaluations dynamics, our findings novel suggest managers investigate vegetation interactions stability larger planning restoration smaller

Language: Английский

Citations

0

Análisis de la diversidad genética en poblaciones fragmentadas y continuas de <i>Aspidosperma quebracho-blanco</i> (Apocynaceae) del Chaco Semiárido DOI Creative Commons
Noelia E. A. Almirón, Viviana G. Solís Neffa

Boletín de la Sociedad Argentina de Botánica, Journal Year: 2024, Volume and Issue: 59(4)

Published: Dec. 27, 2024

Background and aims: The loss fragmentation of the Chaco Forest due to deforestation could affect genetic diversity species. Previous analyses Aspidosperma quebracho-blanco, an emblematic forest species region, suggested that populations in northern Semi-arid Argentina are interest for situ conservation restoration. Thus, we analyzed structure fragmented continuous quebracho-blanco from this region assess risk erosion role habitats M&M: Using 4 AFLP marker combinations, variability 49 individuals 2 3 A. were analyzed. This analysis was conducted context territorial planning, considering distribution protected areas, ecological corridors, land use, area fragments. Results: differences estimated indices between studied not significant (pHe=0.62, pSh=0.53, p%P=0.68). is moderate correlates with distance populations. most vulnerable located areas where use allowed. Conclusions: fragments important quebracho-blanco. However, short term, ecological, demographic factors may have a greater impact on viability its than caused by fragmentation.

Language: Английский

Citations

0