Morphological and Genetic Variation in Monocultures, Forestry Systems and Wild Populations of Agave maximiliana of Western Mexico: Implications for Its Conservation

Frontiers in Plant Science, Journal Year: 2020, Volume and Issue: 11

Published: June 17, 2020

Forestry systems in Mexico are examples of traditional management land and biodiversity that integrates the use, conservation restoration forest elements. Current situ practices Agave maximiliana western include tolerance many elements, reintroduction young plants germination seeds. More intense forms monocultures, which agro-industrialized developed more recent times characterized by establishment high densities A. deforested areas abandoned agricultural lands. We compared forestry wild populations (i.e. non/slightly-exploited forests) order to evaluate whether these have had an effect on intraspecific morphological genetic variation divergence. also tested divergence has a positive relationship with environmental geographic distance. analyzed 16 phenotypic traits 17 maximiliana, 14 were further examined amplifying 9 SSR loci. employed multivariate methods analyses variance test clusters percentage contained managed categories can be identified. Tests isolation environment (IBE) distance (IBD) performed detect magnitude explained climatic variables. found effective as reservoirs diversity, since they maintain levels similar those populations. Moreover, monocultures showed levels, reflecting their emergence. While species diversity (IMD=0.638, SE0.07), it low intermediate (A= 2.37, HE=0.418). Similar divergences among populations, but not correlated each other population pairs. Non-significant differentiation was categories. Only IBE significant structure (β = 0.32, P 0.007), while neither nor IBD detected differentiation. discuss implications results context weaknesses strengths face socio-ecological changes predicted for study area short term.

Language: Английский

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The multiple values of urban geosites: El Arenal and Viaje a la Naturaleza parks in Mexico City

Geofísica Internacional, Journal Year: 2024, Volume and Issue: 63(3), P. 1067 - 1085

Published: June 21, 2024

Urban geosites are an important resource for science, geoeducation and geotourism that may provide multiple benefits local communities. The gigantic Mexico City is settled in a paleolake basin sur- rounded by Quaternary volcanic ranges. SW corner of the city has spread over two these ranges, Sierra Chichinautzin de las Cruces, leaving few outcrops dense urban network preserved public parks. We present here results our study geological characteristics parks managed found surprisingly high geodiversity their directly surrounding areas which, along with accessibility, give them elevated values. This combined biodiversity, creating geo-bio-heritage is, however, threatened anthropic activities. designed geopaths and, as first approach to communities, we organized field excursions which were highly successful raising knowledge interest people on also contributed aware- ness threats need be addressed order achieve sustainable management conservation. Our project hence represents step strategy promote natural heritage contribute its conservation, reduce gap between science society.

Language: Английский

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High genetic diversity and stable Pleistocene distributional ranges in the widespread Mexican red oak Quercus castanea Née (1801) (Fagaceae)

Ecology and Evolution, Journal Year: 2020, Volume and Issue: 10(10), P. 4204 - 4219

Published: March 24, 2020

The Mexican highlands are areas of high biological complexity where taxa Nearctic and Neotropical origin different population histories found. To gain a more detailed view the evolution biota in these regions, it is necessary to evaluate effects historical tectonic climate events on species. Here, we analyzed phylogeographic structure, demographic processes, contemporary period, Last Glacial Maximum (LGM) Interglacial (LIG) ecological niche models

Language: Английский

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Influence of Geographical and Climatic Factors on Quercus variabilis Blume Fruit Phenotypic Diversity

Diversity, Journal Year: 2021, Volume and Issue: 13(7), P. 329 - 329

Published: July 18, 2021

Quercus variabilis Blume is one of the most ecologically valuable tree species in China and known to have adaptive mechanisms climate change. Our objective was quantify variation pattern fruit morphology Q. variabilis. Fruit samples were collected from 43 natural populations autumn 2019. results indicated that coefficient (CV) length (FL) width (FW) 10.08% 11.21%, respectively. There significant differences FL, FW, length-to-width ratios (FL/FW) among studied populations. Also, there a positive correlation between FW FL. The FL decreased with increasing precipitation wettest quarter (PWQ). A concave trend observed variations equivalent latitude (ELAT), longitude (LON), annual mean air temperature (MAT), (AP). similar for FL/FW LON, MAT, AP. FL/FW, ELAT. cluster analysis revealed five groups study findings suggests has high levels phenotypic plasticity geographical climatic factors.

Language: Английский

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Effect of hybridization on the morphological differentiation of the red oaks Quercus acutifolia and Quercus grahamii (Fagaceae)

Plant Systematics and Evolution, Journal Year: 2021, Volume and Issue: 307(3)

Published: April 29, 2021

Language: Английский

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Systematics and the Unexpected High Mitochondrial Genetic Divergence of Nelsonia goldmani (Rodentia: Cricetidae) from Mexican Highlands

Journal of Mammalian Evolution, Journal Year: 2021, Volume and Issue: 28(3), P. 939 - 951

Published: Jan. 3, 2021

Language: Английский

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Leaf morphometric analysis and potential distribution modelling contribute to taxonomic differentiation in the Quercus microphylla complex

Journal of Plant Research, Journal Year: 2023, Volume and Issue: 137(1), P. 3 - 19

Published: Sept. 23, 2023

Abstract Mexico is a major center of evolutionary radiation for the genus Quercus , with oak species occurring across different habitat types and showing wide variation in morphology growth form. Despite representing about 20% Mexican species, scrub oaks have received little attention even basic aspects their taxonomy geographic distribution remain unresolved. In this study, we analyzed morphological climatic niche differentiation populations forming complex constituted by six named cordifolia frutex intricata microphylla repanda striatula distinct morphotype Q. identified during field herbarium work (hereafter II). Samples were obtained from 35 sites covering northern central Mexico. Morphological was through geometric morphometrics leaf shape quantification trichome traits. Our results indicated presence two main groups concordance. The first formed distributed Trans-Mexican Volcanic Belt, Sierra Madre Occidental portion south Altiplano (MA). second group consists cordifola II, found Oriental MA. Therefore, our evidence supports distinctness II morphotype, indicating need taxonomic revision. Within groups, among taxa varied very clear to low or inexistent (i.e. microphylla-Q. cordifolia-Q. II) but comparisons revealed significant all pairwise comparisons, highlighting relevance integrative approaches resolution complicated such as one studied here.

Language: Английский

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Role of Pleistocene climatic oscillations on genetic differentiation and evolutionary history of the Transvolcanic deer mouse Peromyscus hylocetes (Rodentia: Cricetidae) throughout the Mexican central highlands

Journal of Zoological Systematics & Evolutionary Research, Journal Year: 2021, Volume and Issue: 59(8), P. 2481 - 2499

Published: Oct. 21, 2021

Highlands are the most heterogeneous and complex biogeographic regions of Mexico. Species inhabiting these have been exposed to geologic events climatic fluctuations in past causing limited historical gene flow that resulted structured genetic variation high endemism. We examined mouse Peromyscus hylocetes throughout its geographic distribution within Trans-Mexican Volcanic Belt (TVB), estimate current environmental suitability, habitat connectivity, reconstruct evolutionary history by inferring role abiotic factors. Two main clusters corresponding west east range species were detected. Gene occurred largely from cluster. P. aztecus diverged during Pliocene–Pleistocene at central-south region TVB. hypothesized after this divergence, colonized TVB Pleistocene later expanded western Due oscillations late Pleistocene, populations restricted warmer periods, displacements colder periods central on several episodes. Las zonas montañosas son las regiones biogeográficas más heterogéneas y complejas de México. especies que habitan estas han sido expuestas a eventos geológicos fluctuaciones climáticas en el pasado provocando un limitado flujo genético histórico resultó la variación genética estructurada alto endemismo. Examinamos del ratón través su distribución geográfica Faja Volcánica Transmexicana (FVT), estimamos idoneidad ambiental actual, conectividad hábitat reconstruimos historia evolutiva infiriendo papel los factores abióticos. Dos principales grupos genéticos fueron detectados correspondientes al oeste este distribución. El mayor ocurrió desde grupo oste este. divergieron durante Plioceno-Pleistoceno región centro-sur FVT. Hipotetizamos después esta divergencia, colonizó FVT Pleistoceno expandió Debido oscilaciones tardío, poblaciones estuvieron restringidas periodos cálidos desplazamientos ocurrieron fríos centro varios episodios. Table S1. GenBank accession numbers for sequences used phylogenetic analyses complex. S2. Sequences external internal primer amplify cytochrome b (Cytb), c oxidase subunit 1 (COI), intron 7 beta fibrinogen polypeptide (Fgb-I7), 2 alcohol dehydrogenase (Adh-I2). S3. Geographic information obtained museum specimens, literature, Global Biodiversity Information Facility. This was ecological niche modeling analysis. Alignment alignment S4. Please note: The publisher is not responsible content or functionality any supporting supplied authors. Any queries (other than missing content) should be directed author article.

Language: Английский

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The role of niche breadth in oak phylogeography: Quercus glaucoides as a study case

Journal of Biogeography, Journal Year: 2023, Volume and Issue: 50(9), P. 1653 - 1667

Published: April 1, 2023

Abstract Aim The extent of genetic diversity and its distribution among populations have been associated with species attributes such as mating system, dispersal ability geographic range size. Another attribute that could contribute to intraspecific phylogeographic patterns is niche breadth, but this has rarely tested. Here, we ask whether a Mexican oak comparatively narrow climatic breadth distinct compared other codistributed oaks broader niche. Location Mexico. Taxon Quercus glaucoides M. Martens & Galeotti (Fagaceae). Methods Descriptors structure were calculated for 21 Q. using chloroplast DNA (cpDNA) nuclear microsatellites (nSSRs). Historical demographic dynamics inferred approximate Bayesian computation (ABC) past potential models. To test an association between patterns, used differentiation values plus those previously published 10 taxa. Niche was estimated all taxa linear regressions performed. Results Genetic from nSSRs ( H O = 0.539; E 0.714) the lowest cpDNA N ST 0.88) highest so far obtained comparable oaks. Moderate changes in size shifts throughout last glacial cycle inferred, explaining some observed patterns. A positive correlation negative detected across Main Conclusions Distinct be explained because narrower may cause lower historical effective population sizes more fragmented distributions comparison wider even similar sizes. Our results indicate would interesting ecological included future comparative studies.

Language: Английский

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Phylogeographic relationships, structure, and genetic diversity of the Mexican endemic volcano Harvest Mouse Reithrodontomys chrysopsis (Rodentia, Cricetidae)

Journal of Mammalian Evolution, Journal Year: 2023, Volume and Issue: 30(3), P. 735 - 746

Published: June 30, 2023

Language: Английский

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