2013
DOI: 10.4067/s0716-078x2013000200007
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Does disturbance determines the prevalence of dwarf mistletoe (Arceuthobium, Santalales: Viscaceae) in Central Mexico?

Abstract: Large vegetation disturbance rates have been reported in the "Zoquiapan y Anexas" Protected Natural Area in Central Mexico. Arceuthobium globosum and A. vaginatum coexist within this area and have a deleterious impact on Pinus hartwegii. This study seeks to understand the relationship between this disturbance and the two dwarf mistletoe species prevalent in this zone. Twenty-four plots measuring 60 × 55 m containing P. hartwegii trees were selected. Within these plots, the physical features of the land, the de… Show more

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Cited by 11 publications
(11 citation statements)
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“…17 This has management implications, as it suggests that system simplification can enhance dwarf mistletoes parasitism. Dwarf mistletoe infection depends on several factors, both biotic and abiotic, where altitude and slope define its distribution, 17,18 and host availability affects their prevalence (incidence and severity) as well as an aggregated distribution pattern. 19 Mostly, the prevalence is strongly affected by stand structure and hosts' size, as there is a clear preference for hosts with greater diameter and crown cover as well as there is a positive correlation with pines density, being more frequent in denser stands that are in regeneration process.…”
Section: Discussionmentioning
confidence: 99%
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“…17 This has management implications, as it suggests that system simplification can enhance dwarf mistletoes parasitism. Dwarf mistletoe infection depends on several factors, both biotic and abiotic, where altitude and slope define its distribution, 17,18 and host availability affects their prevalence (incidence and severity) as well as an aggregated distribution pattern. 19 Mostly, the prevalence is strongly affected by stand structure and hosts' size, as there is a clear preference for hosts with greater diameter and crown cover as well as there is a positive correlation with pines density, being more frequent in denser stands that are in regeneration process.…”
Section: Discussionmentioning
confidence: 99%
“…19,20 However, different disturbance factors can influence their incidence, such as waste deposits, logging and fire incidence. 18 Fire incidence seems to be a natural way to control dwarf mistletoes, and population sizes of these two species fluctuate in response to fires. 17,21 The above shows that dwarf mistletoe ecology is complex, and many factors should be considered.…”
Section: Discussionmentioning
confidence: 99%
“…Se realizaron gráficos descriptivos para analizar si existe una tendencia de establecimiento de muérdago por altitud (tabla 1) y con una prueba de regresión simple se analizó si la presencia de muérdago está relacionada con factores abióticos (presencia de caminos, extracción, incendios, pastoreo y/o tinas ciegas). Con una prueba de Anova y diferencias mínimas significativas de Fisher (LSD), se analizó si el nivel de infestación difiere por especie de muérdago, se espera que el mayor nivel de infestación sea para A. vaginatum, por ser la especie que tiene mayor distribución y también más hospederos (Queijeiro-Bolaños et al, 2013); para esta prueba se utilizaron los niveles de infestación por muérdago bajo 3 condiciones: muérdago amarillo (A. globosum), muérdago negro (A. vaginatum) y ambos (cuando en un mismo árbol se presentaron las 2 especies de muérdago) (Hawksworth, 1983). Se realizó una prueba de regresión simple para determinar si la densidad del bosque influye en el nivel de infestación por especie de muérdago (tabla 2).…”
Section: Materiales Y Métodosunclassified
“…Sin embargo, estos bosques se encuentran sometidos a constante presión antrópica debido a la cercanía con grandes complejos urbanos; esto ocasiona entre otras problemáticas, contaminación de suelo y cuerpos de agua, aumento de la tala ilegal, que reduce la variabilidad genética, además de que, como sugieren algunos estudios, facilita la dispersión de las semillas de muérdago (Endara y Herrera, 2017;Heredia Bobadilla et al, 2018). Las respuestas del bosque ante estos disturbios son cambios en la dinámica de las poblaciones de muérdagos enanos, por ejemplo, el incremento de los niveles de infestación (Endara et al, 2012;Queijeiro-Bolaños et al, 2013). Por otro lado, se conoce que los requerimientos ecológicos de Arceuthobium globosum Hawksworth et Wiens.…”
Section: Introductionunclassified
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