Incidence, severity, and aggregation patterns of two sympatric dwarf mistletoe species (Arceuthobium spp.) in Central Mexico

Queijeiro-Bolaños, Mónica E.; Cano‐Santana, Zenón; García‐Guzmán, Graciela

doi:10.1007/s10342-013-0762-6

Cited by 12 publications

(11 citation statements)

References 26 publications

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“…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. 19,20 However, different disturbance factors can influence their incidence, such as waste deposits, logging and fire incidence.…”

Section: Discussionmentioning

confidence: 99%

“…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. 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.…”

Section: Discussionmentioning

confidence: 99%

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Dwarf mistletoes as a relevant component in temperate forest: an integral view

Cano‐Santana¹,

Queijeiro-Bolaños²

2018

FREIJ

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Dwarf mistletoes are considered harmful parasites of temperate forests. However, different studies found that they contribute positively to ecosystem functioning and enhance diversity in the forest community. This mini-review attempts to highlight the importance of dwarf mistletoes in temperate forests, based on case studies of pine forests in central Mexico. We emphasize the complexity of the infection dynamics, and how it can be modified by human activities. We propose that dwarf mistletoes should be seen as an integral part of forests.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Dwarf mistletoes as a relevant component in temperate forest: an integral view

Cano‐Santana¹,

Queijeiro-Bolaños²

2018

FREIJ

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“…The difference in aggregation between plots may have several causes, such as microhabitat suitability, habitat heterogeneity (including local disturbances) and biotic interactions (Qeijeiro‐Bolaños et al. ).…”

Section: Discussionmentioning

confidence: 99%

Factors influencing the dispersion ofArceuthobium oxycedriinCentralSpain: evaluation with a new null model for marked point patterns

et al. 2016

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The dwarf mistletoe, Arceuthobium oxycedri, is found on populations of Juniperus oxycedrus, in central Spain. This species can have negative effects on the physiology of its host, including mortality. Understanding the mechanisms that control its distribution and dispersal is critical to assessing its potential for spread. We assessed dwarf mistletoe distribution within a population of J. oxycedrus, including infected and uninfected host individuals. A new null model of parasitic dispersion was built using two dispersal kernel forms that were simulated with lower and upper envelopes for second-order functions to summarize a point pattern, such as Ripley's K, nearest-neighbour distribution and pair correlation functions. Nine dispersal scenarios were constructed with half-bandwidth kernels (10, 20, 30 m) and initial population of infected trees (P 0 = 05, 10 and 20). These scenarios were compared with the observed pattern and evaluated using the goodnessof-fit test. Significant differences at short distance (r < 10 m) were found between the observed pattern and simulated patterns, corresponding to the range of seed dispersal of the dwarf mistletoe. Interactions between infected and uninfected hosts patterns at all scales were identified, suggesting that A. oxycedri uses other mechanisms in addition to ballistic seed shooting as secondary dispersal agents to spread to distances greater than 20 m. Given that the seed characteristics facilitate dispersal by adhesion, we infer that spread between host individuals is amplified by seed transport by birds or small mammals.

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“…The spread of mistletoe is influenced by a whole range of biotic and abiotic factors. Among the biotic factors, the most important are the behavior of animals, especially birds, as the main agents carrying mistletoe seeds [16], the stand density of the mistletoe itself (intraspecific competition), and competition with other parasites [17], as well as the distribution and presence of suitable host trees and the physiological parasite-host relationships [18,19].…”

Section: Introductionmentioning

confidence: 99%

Ecological and Landscape Factors Affecting the Spread of European Mistletoe (Viscum album L.) in Urban Areas (A Case Study of the Kaliningrad City, Russia)

Skrypnik

Maslennikov

Feduraev

et al. 2020

Plants

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Green spaces are very important for an urban environment. Trees in cities develop under more stressful conditions and are, therefore, more susceptible to parasite including mistletoe infestation. The aim of this study was to investigate the ecological, microclimatic, and landscape factors causing the spread of European mistletoe (Viscum album L.) in urban conditions. The most numerous hosts of mistletoe were Tilia cordata (24.4%), Acer platanoides (22.7%), and Populus nigra (16.7%). On average, there were more than 10 mistletoe bushes per tree. The mass mistletoe infestations (more than 50 bushes per the tree) were detected for Populus × berolinensis, Populus nigra, and Acer saccharinum. The largest number of infected trees was detected in the green zone (city parks), historical housing estates, and green zone along water bodies. Based on the results of principal component analysis (PCA), the main factors causing the spread of mistletoe on the urban territories are trees’ age and relative air humidity. The factors reflecting environmental pollution (the content of heavy metals in the soil and the concentration of nitrogen dioxide in the air) did not statistically affect the mistletoe distribution in the study area. However, this result may be due to the heterogeneity of other parameters in the studied areas. Therefore, additional research is required to more accurately interpret the data on the relationship between environmental pollutions and distribution of mistletoe infestation of trees in urban areas.

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Incidence, severity, and aggregation patterns of two sympatric dwarf mistletoe species (Arceuthobium spp.) in Central Mexico

Cited by 12 publications

References 26 publications

Dwarf mistletoes as a relevant component in temperate forest: an integral view

Dwarf mistletoes as a relevant component in temperate forest: an integral view

Factors influencing the dispersion ofArceuthobium oxycedriinCentralSpain: evaluation with a new null model for marked point patterns

Ecological and Landscape Factors Affecting the Spread of European Mistletoe (Viscum album L.) in Urban Areas (A Case Study of the Kaliningrad City, Russia)

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