2019
DOI: 10.17129/botsci.2262
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Demografía y estructura poblacional de Dioon angustifolium (Zamiaceae) en el noreste de México

Abstract: Antecedentes: Dioon angustifolium es una especie endémica que se distribuye en el extremonoreste de la Sierra Madre Oriental. Se clasifica como especie en peligro de extinción debido a actividades antrópicas como la extracción ilegal con fines comerciales.Pregunta: ¿Cuál es el estado actual de la estructura de las poblaciones de Dioon angustifolium en su área de distribución?Especie en estudio: Dioon angustifolium Miq. (Zamiaceae), especie endémica de la Sierra Madre Oriental en México.Lugar y años de estudio:… Show more

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Cited by 3 publications
(3 citation statements)
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“…Most populations presented the survival inverted "J" curve (type III) typical of shade-tolerant species [20] and most populations of D. edule [18], D. purpusii [26], and D. angustifolium [31]. These populations have a higher density of seedlings and juveniles with high mortality and few very long-lived adults with reduced mortality.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Most populations presented the survival inverted "J" curve (type III) typical of shade-tolerant species [20] and most populations of D. edule [18], D. purpusii [26], and D. angustifolium [31]. These populations have a higher density of seedlings and juveniles with high mortality and few very long-lived adults with reduced mortality.…”
Section: Discussionmentioning
confidence: 99%
“…The genetic diversity analysis tried to clear the picture of the medium and long-term repercussions of adverse factors identified when analyzing the species' population demography. However, we consider that the number of populations and molecular markers should be increased since Dioon edule is ditributed in various habitats with different microenvironmental conditions, causing phenotypical differences that should be analyzed [3,31].…”
Section: Discussionmentioning
confidence: 99%
“…Given their position in the tree of life, their conservation status, and their distinctive physiological, ecological, morphological, and anatomical characteristics, cycads are well appreciated by researchers and plant enthusiasts. Understanding their biology and ecology has brought great implications to clarify the early genomic evolution of seed plants (Liu, Wang, et al, 2022), the uncommon ecophysiology behind their specialized ecological relationships (e.g., thermogenesis, chemical defense systems, brood‐site pollination mutualism) (Ito‐Inaba et al, 2019; Salzman et al, 2023; Schneider et al, 2002), the demography and population structure of threatened species (Rubio‐Méndez et al, 2019; Wu et al, 2022), the evolutionary and ecological consequences of dioecy (Krieg et al, 2017), the application of conservation strategies (Griffith et al, 2015), or the reconstruction of local (e.g., Kyoda & Setoguchi, 2010) or global (Coiro et al, 2023) geological and biogeographic scenarios. However, a question that remains almost unexplored in research is: why, despite their apparent evolutionary stasis, do cycads show such a great diversity?…”
Section: The Cycad Genus Dioon As a Model To Understand The Evolution...mentioning
confidence: 99%