Estructura y composición de la vegetación en cuatro sitios de la Sierra Madre Occidental

Gómez, Tilo Gustavo Domínguez; González, Blanca Nallely Hernández; Rodríguez, Humberto González; Silva, Israel Cantú; Alanís-Rodríguez, Eduardo; Alvarado, María del Socorro

doi:10.29298/rmcf.v9i50.227

Cited by 9 publications

(5 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Regarding species diversity, it was found that the S values estimated for the study area were similar to the values reported for this region by Domínguez-Gómez et al [37]. Additionally, the H index for each severity level is within the highest ranges reported for this region [37,38].…”

Section: Changes In Species Diversitysupporting

confidence: 86%

Effect of Fire Severity on the Species Diversity and Structure of a Temperate Forest in Northern Mexico

Zúñiga-Vásquez

Villanueva‐Díaz

Cerano‐Paredes

et al. 2022

Forests

View full text Add to dashboard Cite

Forests experience disturbances, such as fire, that affect their functioning, structure, and species composition. The objective of this work was to compare the species diversity and forest structure at sites affected by different degrees of fire severity, 9 years after a forest fire event. We used the differenced Normalized Burn Ratio (dNBR) index. Vegetation was sampled in three severity levels: high (HS), moderate (MS), and low (LS) and included the unburned (U) level as control. In addition, we calculated the species richness (S), the Shannon index (H), and the Evenness Index (E). The structural diversity of tree diameters and heights was measured applying the indices H, E, and the coefficient of variation (CV). The differences in the indices calculated across the fire severity levels were determined through analyses of variance (ANOVA) and Tukey’s multiple comparison tests. The results showed no significant differences (p ≤ 0.05) in the species diversity indices between fire severity levels. The structural diversity of tree diameters and heights was lower at the HS level. dNBR was negatively related to structural diversity; thus, it is concluded that HS tends to reduce structural variability in terms of diameter, height, and age. These results provide a baseline to understand how fire can modify forest structure and species diversity.

show abstract

Section: Changes In Species Diversitysupporting

confidence: 86%

Effect of Fire Severity on the Species Diversity and Structure of a Temperate Forest in Northern Mexico

Zúñiga-Vásquez

Villanueva‐Díaz

Cerano‐Paredes

et al. 2022

Forests

View full text Add to dashboard Cite

show abstract

“…The Bray-Curtis index of dissimilarity [51] was used for the analysis of beta diversity to compare and determine the compositional dissimilarities of each tree community with their corresponding seedling community, sampled at the beginning and end of the flooding and rains. This was done with the vegdist function of the Vegan R package [52] using species richness and abundance.…”

Section: Discussionmentioning

confidence: 99%

Effect of Seasonal Rains and Floods on Seedling Recruitment and Compositional Similarity in Two Lowland Tropical Forests

Polanía

Aldana

Bottin

et al. 2020

Forests

View full text Add to dashboard Cite

Research Highlights: Seasonally flooded and terra firme forests are characteristic ecosystems of the Colombian Orinoco Basin and of great importance in the maintenance of regional biodiversity and ecosystem function. These forests have a unimodal precipitation regime that can cause a temporal effect on the seedling regeneration niche. This could partly explain the high diversity and coexistence of plant species in these forests, as well as the similarity in composition of seedlings and trees. Background and Objectives: Seedlings are a key factor in the assembly of plant communities. We evaluated the effect of flooding and rains on the dissimilarity and compositional affinity between trees and seedlings of seasonally flooded and terra firme forests. Materials and Methods: the tree community of these forests in San Martín (Meta, Colombia) was characterized and compared with their respective seedling communities before (June) and after (December) rain and flooding (during the rainy season). We evaluated plant species diversity and abundance (Shannon diversity and Pielou eveness index), as well as the compositional dissimilarities of each tree community with their corresponding seedling community sampled at the beginning and end of rains and flooding (Bray–Curtis dissimilarity). We also compared sampling site composition using a NMDS analysis. Results: We found that the terra firme forest had higher diversity compared to the flooded forest. Seedling density in the seasonally flooded forest decreased significantly after the flood but not in the terra firme forest at the end of the rainy season. The compositional dissimilarity between trees and seedlings in the seasonally inundated forest also decreased after the flood. However, this pattern was not evident in the terra firme forest. Conclusions: These results indicate that seasonal flooding generates a strong ecological filter that affects the realized niche of plants in these forests. Our results can contribute valuable information for the effective development of assisted restoration and conservation programs.

show abstract

“…López-Hernández (2017) registraron valores menores (H´=1.37) a lo registrado en este estudio. Por otro lado, se han reportado valores de H´=1.51 y H´=1.87 en Áreas Naturales Protegidas del estado de Durango (Vargas Larreta, 2013;Domínguez et al, 2018). En bosques con poca perturbación y mayor edad, generalmente se presenta alta diversidad de árboles y especies arbustivas (Onaindia et al, 2004).…”

Section: Discussionunclassified

Cambios en la composición y estructura de especies arbóreas en un bosque templado de Durango, México

et al. 2020

Self Cite

View full text Add to dashboard Cite

Antecedentes y Objetivos: El manejo forestal ocasiona cambios en la composición, estructura y funcionamiento del bosque. El objetivo de este estudio fue comparar la estructura de especies arbóreas en un periodo de 10 años en un bosque de Durango, México.Métodos: Los datos provienen de árboles con DAP mayor o igual a 7.5 cm (a una altura >1.3 m), ubicados en sitios permanentes que fueron evaluados en intervalos de cinco años (2007, 2012 y 2017). Se definieron tres estratos de altura para cada año de medición, bajo la metodología del índice de perfil vertical (A) de Pretzsch tomando en cuenta la altura mayor de cada medición. En cada estrato se evaluó la estructura a través del índice de valor de importancia (IVI), la diversidad alfa (α) con la riqueza de especies (S) y el índice de Shannon-Wiener (H’). Todas las variables dasométricas por estrato de cada medición se compararon con un ANOVA de un factor para determinar la existencia de diferencias estadísticamente significativas entre evaluaciones.Resultados clave: Aunque hubo un aumento en el área basal, el volumen y la cobertura de 2007 a 2017, este no fue estadísticamente significativo. Los estratos II y III presentaron el mayor aumento en el área basal y el volumen. La cobertura fue superior a 100%, presentando mejor contribución el estrato III. La composición de especies fue similar en las tres mediciones, siendo el estrato III el más diverso. Pinus durangensis fue la especie de mayor importancia ecológica en los estratos I y II, mientras que Quercus sideroxyla presentó relevancia alta en el III.Conclusiones: La comparación realizada en un periodo de 10 años (2007-2017) permitió determinar que la vegetación arbórea de la comunidad evaluada se mantiene sin cambios respecto a la diversidad de especies, mientras que el área basal y el volumen tienden a aumentar.Palabras clave: área basal, cobertura, diversidad, estratos, estructura vertical, volumen.

show abstract

Estructura y composición de la vegetación en cuatro sitios de la Sierra Madre Occidental

Cited by 9 publications

References 5 publications

Effect of Fire Severity on the Species Diversity and Structure of a Temperate Forest in Northern Mexico

Effect of Fire Severity on the Species Diversity and Structure of a Temperate Forest in Northern Mexico

Effect of Seasonal Rains and Floods on Seedling Recruitment and Compositional Similarity in Two Lowland Tropical Forests

Cambios en la composición y estructura de especies arbóreas en un bosque templado de Durango, México

Contact Info

Product

Resources

About