Masting effect on canopy greenness and climate response on seed production of Fagus grandifolia subsp. mexicana across the Sierra Madre Oriental, Mexico

Rodríguez‐Ramírez, Ernesto C.; Williams‐Linera, Guadalupe; Díaz-Ávalos, Carlos; Luna‐Vega, Isolda

doi:10.1016/j.ecochg.2021.100035

Cited by 3 publications

(9 citation statements)

References 43 publications

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“…To determine the current natural distribution of Mexican beech, we conducted field studies of TMCFs from eastern Mexico over 14 years, from 2007 to 2021. We complemented these studies with satellite imagery observations (Rodríguez‐Ramírez et al, 2021 ) and occurrence data derived from previous studies (Ehnis, 1981 ; Montiel‐Oscura, 2011 ; Rodríguez‐Ramírez et al, 2018 , 2021 ; Williams‐Linera et al, 2000 ). We selected 15 Mexican beech forests in five states (Figure 2 ) and determined forest areas and environmental conditions for each state (Table 1 ).…”

Section: Methodsmentioning

confidence: 99%

“…We used elevation data and 19 bioclimatic variables from the CHELSA database, which involved a recent time frame (1981–2010), the aridity index, and the annual evapotranspiration variables from the CGIAR‐CSI website ( www.cgiar‐csi.org ; Trabucco & Zomer, 2019 ), with a resolution layer of c. 1 km 2 . We selected bioclimatic variables for the Mexican beech based on predictive maps following two different approaches, one statistically based (Fielding & Bell, 1997 ; Peterson & Soberón, 2012 ) and the other using Mexican beech occurrence records (Ehnis, 1981 ; Pérez‐Rodríguez, 1999 ; Rodríguez‐Ramírez et al, 2013 , 2021 ; Rowden et al, 2004 ).…”

Section: Methodsmentioning

confidence: 99%

“…We followed a logistic threshold for training presence clipping which corresponds to the 10% of data with the lowest probability value which is commonly used in conservation studies (Abba et al, 2012 ; Ancillotto et al, 2019 ; Khanghah et al, 2022 ). In addition, we used the trimming threshold (~24%–26%) of the present model, which approximates the distribution of the species according to Williams‐Linera et al ( 2000 ) and Rodríguez‐Ramírez et al ( 2021 ). We then selected the models from the “best” variable set (500), scenario, and candidate model (Appendix S1 ).…”

Section: Methodsmentioning

confidence: 99%

“…Several geographically isolated forests have shared and exchanged floristic structure and composition during the early Tertiary (~66–2.6 Ma BP). This is the starting point for the current similarity of the American beech between the United States and Canada (Rodríguez‐Ramírez et al, 2021 ). Nevertheless, the earliest palynological evidence for Fagus mexicana Martínez (Mexican beech) in eastern Mexico dates to c. 25 Ma BP (Oligo‐Miocene) from the states of Veracruz and Chiapas (Biaggi, 1978 ; Graham, 1976 , 1999 ; Palacios Chavez & Rzedowski, 1993 ).…”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, there are no suitable studies to assess the potential impact of climate change on Mexican beech forests (Téllez‐Valdés et al, 2006 ) or conservation strategies considering spatial ecology, temporal patterns, and environmental requirements. Climatic scenarios predict that masting tree species such as the Mexican beech will be affected by climate change, influencing phenological processes at the population level (Rodríguez‐Ramírez et al, 2021 ). Modeling of species distribution links species presence data with ecological and climate variables, assuming that the known distribution reflects the species' survival pattern (Chardon et al, 2020 ; Di Pasquale et al, 2020 ; Hirzel et al, 2001 ).…”

Section: Introductionmentioning

confidence: 99%

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The effect of climate change on Arcto‐Tertiary Mexican beech forests: Exploring their past, present, and future distribution

Ames-Martínez

Luna‐Vega

Dieringer

et al. 2022

Ecology and Evolution

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Fagus mexicana Martínez (Mexican beech) is an endangered Arcto‐Tertiary Geoflora tree species that inhabit isolated and fragmented tropical montane cloud forests in eastern Mexico. Exploring past, present, and future climate change effects on the distribution of Mexican beech involves the study of spatial ecology and temporal patterns to develop conservation plans. These are key to understanding the niche conservatism of other forest communities with similar environmental requirements. For this study, we used species distribution models by combining occurrence records, to assess the distribution patterns and changes of the past (Last Glacial Maximum), present (1981–2010), and future (2040–2070) periods under two climate scenarios (SSP 3‐7.0 & SSP 5‐8.5). Next, we determined the habitat suitability and priority conservation areas of Mexican beech as associated with topography, land cover use, distance to the nearest town, and environmental variables. By considering the distribution of Mexican beech during different periods and under different climate scenarios, our study estimated that high‐impact areas of Mexican beech forests were restricted to specific areas of the Sierra Madre Oriental that constitute refugia from the Last Glacial Maximum. Regrettably, our results exhibited that Mexican beech distribution has decreased 71.3% since the Last Glacial Maximum and this trend will for the next 50 years, migrating to specific refugia at higher altitudes. This suggests that the states of Hidalgo, Veracruz, and Puebla will preserve the habitat suitability features as ecological refugia, related to high moisture and north‐facing slopes. For isolated and difficult‐to‐access areas, the proposed methods are powerful tools for relict‐tree species, which deserve further conservation.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The effect of climate change on Arcto‐Tertiary Mexican beech forests: Exploring their past, present, and future distribution

Ames-Martínez

Luna‐Vega

Dieringer

et al. 2022

Ecology and Evolution

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Threatened Trees Characteristic of Mexican Tropical Montane Cloud Forests

et al. 2022

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In this study, we document the distribution, current knowledge, and conservation of twenty-six tree species of gymnosperms (four species) and angiosperms (twenty-two species) characteristic of the Mexican cloud forests and most endemic to Mexico. Many species are threatened and included in international and national Red Data List, such as the IUCN, and the Mexican Official Norm (NOM-059-SEMARNAT-2010). Distribution maps of these 26 species were generated based on information from herbarium specimens, specialized literature, web databases, and our own field surveys. All records were displayed on a map of the Mexican territory divided into grid cells of 15 × 20 min of latitude/longitude (a spatial resolution of approximately 27.75 km × 36.75 km) to obtain the richness patterns. Additionally, these records were displayed on the map of the current Mexican System of Natural Protected Areas (NPAs) to evaluate their representativeness in these areas of in situ conservation. We also include information on populations and the habitat status of these tree species in some Mexican locations. Most species studied here require particular policies for their conservation due to the problems affecting their natural populations and habitat. Our results indicate that three species are not represented in the Mexican System of NPAs and that some are underrepresented.

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Small-fragment, high turnover: soil microenvironment fluctuation effect on tree diversity in a Neotropical montane oak forest

López-Calvillo,

Carbó-Ramírez,

Rodríguez-Ramírez

2023

PeerJ

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Background Soil microenvironmental variables showed an important key in α and β-tree diversity in Neotropical montane oak forest. Thus, understanding the microenvironment fluctuation at small-fragment effects on tree diversity is crucial in maintaining the montane oak ecosystems. In this study, we hypothesized that within a relatively small-fragment (151.63 ha), tree α and β-diversity fluctuate and specific soil microenvironmental factors could influence tree species diversity to answer three questions: Do tree α and β-diversity differ among transects, even in a short-distance between them? Do microenvironmental variables influence tree diversity composition that occurs within a relict Neotropical montane oak forest? Is there a particular microenvironmental variable influencing tree species-specific? Methods We established four permanent transects during a year in a relict Neotropical montane oak forest, we assessed tree diversity and specific microenvironmental variables (soil moisture, soil temperature, pH, depth litterfall and light incidence). This allowed us to evaluate how microenvironmental variables at small-fragment influence α and β-tree diversity and tree species-specific. Results Our results showed that α-diversity was not different among transects; however, β-diversity of tree species was mostly explained by turnover and soil moisture, soil temperature, and light incidence were the microenvironmental variables that triggered the replacement (i.e., one species by another). Those variables also had effect on tree species-specific: Mexican beech (Fagus mexicana), Quebracho (Quercus delgadoana), Pezma (Cyathea fulva), Aguacatillo (Beilschmiedia mexicana), Pezma (Dicksonia sellowiana var. arachneosa), and Mountain magnolia (Magnolia schiedeana). Discussion Our results confirm our hypothesis related to β-diversity but not with α-diversity; however, the tree community structure of the diversity was similar among transects. Our study represents the first effort to evaluate and link the soil microenvironmental effect on tree α and β-diversity, finding a high replacement in a small-fragment of Neotropical montane oak forest from eastern Mexico.

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Masting effect on canopy greenness and climate response on seed production of Fagus grandifolia subsp. mexicana across the Sierra Madre Oriental, Mexico

Cited by 3 publications

References 43 publications

The effect of climate change on Arcto‐Tertiary Mexican beech forests: Exploring their past, present, and future distribution

The effect of climate change on Arcto‐Tertiary Mexican beech forests: Exploring their past, present, and future distribution

Threatened Trees Characteristic of Mexican Tropical Montane Cloud Forests

Small-fragment, high turnover: soil microenvironment fluctuation effect on tree diversity in a Neotropical montane oak forest

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