Distribución diferencial de dos especies de muérdago enano sobre Pinus hartwegii en el área natural protegida “Zoquiapan y Anexas”, Estado de México

Queijeiro-Bolaños, Mónica E.; Cano‐Santana, Zenón; Castellanos-Vargas, Iván

doi:10.21829/abm96.2011.258

Cited by 7 publications

(6 citation statements)

References 17 publications

(14 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Niche differences, which can arise from differences in resource uptake or specialized predation (Levine & Hille Ris Lambers ), cause species to limit their own population more than they limit their competitors, resulting in a negative frequency‐dependent growth (Levine, Adler & Hille Ris Lambers ). There is some evidence that hint at niche differences in our dwarf mistletoes, which have a differential distribution over the host stem, with A. vaginatum located more frequently in the lower parts of the tree (Queijeiro‐Bolaños, Cano‐Santana & Castellanos‐Vargas ). Although stabilizing mechanisms have been discussed in different studies dealing with ‘ordinary’ competition (see for example Chesson ; Adler, Hille Ris Lambers & Levine ; Levine, Adler & Hille Ris Lambers ; Levine & Hille Ris Lambers ), our results show that positive interactions may enhance stability when intraguild facilitation occurs.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Competition and facilitation determine dwarf mistletoe infection dynamics

et al. 2016

Self Cite

View full text Add to dashboard Cite

1. Interspecific interactions have a fundamental role in plant population dynamics, as they may set the conditions for species coexistence. Parasitic plants, like dwarf mistletoes, offer the opportunity to study competition for resources that are different from those consumed by most plants, allowing for a better understanding of the interaction. 2. We explored how interspecific interactions between two dwarf mistletoe species (Arceuthobium), co-infecting the same host species (even sharing the same individual tree of Pinus hartwegii) affect their infection dynamics at two different stages of population development (colonization of new hosts and subsequent growth), and if heterogeneity in resource availability (host density and size structure) affects these interactions. For that purpose, we integrated these processes into a spatially explicit model of density-dependent population growth. 3. We found that self-regulation (density-dependence) was strong for both species; however, the intensity and sign of interspecific interactions changed depending on host size and demographic process. Population growth in Arceuthobium globosum was reduced by competition, except for smaller hosts where A. globosum growth was facilitated by Arceuthobium vaginatum. Arceuthobium vaginatum was facilitated by A. globosum regardless of host size. Colonization of new hosts by A. globosum was enhanced by previous infection by the other species, showing intraguild facilitation. 4. Demographic importance of interactions depended on stand structure: in homogeneous, low-density forests, facilitation predominates, increasing the population sizes of both species, whereas the opposite occurs in heterogeneous and dense forests. Both species achieved stable coexistence, fulfilling the invasibility criterion because each mistletoe species can invade a forest that is already infected by the other species. 5. Synthesis. Despite the fundamentally different mechanisms underlying the interactions between mistletoes compared with non-parasitic plants, our results reveal that their behaviour at the population level is similar. Stabilizing mechanisms, like strong self-limiting population growth, allow dwarf mistletoe coexistence. Interactions shift as populations develop, and they depend largely on environmental factors such as forest structure. Intraguild mutualism is shown as a relevant process for colonization of new spaces, highlighting the complexity of competitive/facilitative interactions between parasitic plants, a formerly unexplored subject. Interactions can only be fully understood when integrating all their components at the population level. Analysing these interactions may contribute to the understanding of plant-plant interactions in general, and convey interesting implications for forest management.

show abstract

Section: Discussionmentioning

confidence: 99%

“…Colonization of new hosts is favoured by large tree‐crowns with larger seed‐catching areas (Arriaga, Franco & Sarukhán ). Unlike other dwarf mistletoes, these two species develop over the whole host, including the tree trunk (Queijeiro‐Bolaños, Cano‐Santana & Castellanos‐Vargas ).…”

Section: Methodsmentioning

confidence: 99%

Competition and facilitation determine dwarf mistletoe infection dynamics

et al. 2016

Self Cite

View full text Add to dashboard Cite

show abstract

“…De las 2 especies de muérdago identificadas Arceuthobium vaginatum y A. globosum, la primera se considera la más agresiva dado que afecta alrededor de 13 hospederos entre ellos P. hartwegii, además de tener mayor presencia de brotes en el fuste de los árboles (Mathiasen et al, 2004;Queijeiro-Bolaños et al, 2011).…”

Section: Discussionunclassified

Factores asociados con la distribución espacial de muérdagos enanos en dos poblaciones de Pinus hartwegii del centro de México

et al. 2022

View full text Add to dashboard Cite

Los muérdagos (Arceuthobium globosum y A. vaginatum) afectan los bosques de Pinus hartwegii, se distribuyen en las partes altas de las montañas de México (3,000-4,200 m snm). El objetivo del estudio fue determinar los factores asociados con la presencia y niveles de infestación de dichos muérdagos en 2 montañas de México. Para ello, se establecieron 1,622 sitios de muestreo en el Área de Protección de Flora y Fauna Nevado de Toluca y 634 en Monte Tláloc, donde se registró la presencia y grado de infestación de la regeneración e individuos adultos (≥ 7.5 cm de DN). Se obtuvieron datos de localización de los sitios de muestreo, altitud, pendiente, orientación de ladera, dominancia de los estratos herbáceo y arbustivo, presencia de individuos muertos y la infestación por descortezador (Dendroctonus adjunctus). Posteriormente, se realizó una prueba de correlación para identificar los factores relacionados con la presencia de muérdagos, además de un análisis de componentes principales. Esta investigación reveló que 37% de la superficie forestal se encuentra infestada por muérdagos enanos; la presencia de descortezadores y la orientación del sitio son los principales factores que inciden en la mayor infestación de muérdagos en los bosques del área de estudio.

show abstract

“…15 Moreover, the population dynamics of dwarf mistletoes is very complex. For instance, when these two species coexist on the same tree, A. vaginatum tend to be on the lower parts of the tree (mostly below 1.7 m); whereas A. globosum is distributed from 0.1 to 5.0 m. 16 The latter suggests that these species have a differential use if the resource. Besides, they have a complex infection dynamics where self-regulation is strong, limiting its own population growth and allowing a stable coexist among the two species; however, both species can experience competition or facilitation with each other, depending on the size of the tree and the homogeneity of the forest, where a low-density homogenous stand may promote a facilitation process between the two species.…”

Section: Discussionmentioning

confidence: 99%

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

Cano‐Santana¹,

Queijeiro-Bolaños²

2018

FREIJ

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Distribución diferencial de dos especies de muérdago enano sobre Pinus hartwegii en el área natural protegida “Zoquiapan y Anexas”, Estado de México

Cited by 7 publications

References 17 publications

Competition and facilitation determine dwarf mistletoe infection dynamics

Competition and facilitation determine dwarf mistletoe infection dynamics

Factores asociados con la distribución espacial de muérdagos enanos en dos poblaciones de Pinus hartwegii del centro de México

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

Contact Info

Product

Resources

About