Spatial patterns of herbivory by gall‐forming insects: a test of the soil fertility hypothesis in a Mexican tropical dry forest

Cuevas‐Reyes, Pablo; Quesada, Maurício; Siebe, Christina; Oyama, Ken

doi:10.1111/j.0030-1299.2004.13263.x

Cited by 51 publications

(53 citation statements)

References 42 publications

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“…With the SEM, we note that there is formation of trichomes on the opening of the base of the gall (Figure 1c). The increased size and number of cells is a response of the plant to insect feeding; nymphs feed on mesophyll tissue (Cuevas-Reyes et al, 2004b) (Figure 1d). Figure 2 shows some of the most important features of the T. rusellae nymphs.…”

Section: Resultsmentioning

confidence: 99%

“…A través del MEB se observó que existe la formación de tricomas en la apertura de la base de la agalla (Figura 1c). El incremento de tamaño y número de células es una respuesta de la planta a la alimentación del insecto; las ninfas se alimentan de tejido mesófilo (Cuevas-Reyes et al, 2004b) (Figura 1d). and some filaments on its body (Mead, 2006) and T. aguacate has wing sectors, features that T. rusellae do not show (Burckhardt & Queiroz, 2012).…”

Section: Agallas De T Rusellae En Hojas De B Alicastrumunclassified

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Identificación del insecto agallador (Trioza rusellae Tuthill) en hojas de Brosimum alicastrum Swartz en Yucatán, México

Ascencio-Álvarez¹,

Martín-Mex²,

Tucuch-Haas³

et al. 2015

Rev Cha Se Cie For y del Amb

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Gall (Trioza rusellae Tuthill) insect identification in AbstractT he insect Trioza rusellae Tuthill (Hemiptera-Triozidae) produces galls on the leaves of the Ramon (Brosimum alicastrum Swartz) tree, species with high nutritional value of the Peninsula of Yucatan. The insect was isolated and identified from collections in the municipalities of Muna and Sacalum, Yucatán. Five to 10 years old trees were sampled selecting branches with leaves showing galls. The samples were placed in plastic bags and taken to the laboratory, and placed in entomological cages. Adult insects were collected using a manual vacuum, while galls were dissected to collect the nymphs directly with a brush (0001). The samples were preserved in alcohol (70 %) and in fixative formalin-alcohol-water (FAW). Nymphs and adult insects from the alcohol samples were mounted and observed on a stereoscopic microscope. The samples in FAW were processed and observed under a scanning electron microscope (SEM). As a result, photographs were obtained and development phases of T. rusellae were identified by entomological keys. Resumen E l insectoTrioza rusellae Tuthill (Hemiptera-Triozidae) produce agallas en las hojas del árbol de ramón (Brosimum alicastrum Swartz), especie con alto valor nutricional de la península de Yucatán. El insecto fue aislado e identificado a partir de colectas en los municipios de Muna y Sacalum, Yucatán. Los árboles de cinco a 10 años de edad se muestrearon seleccionando ramas con hojas que presentaban agallas. Las muestras se colocaron en bolsas de plástico y se trasladaron al laboratorio confinándolas en jaulas entomológicas. Los adultos se recolectaron con un aspirador manual, mientras que las agallas se disectaron para colectar las ninfas directamente con un pincel (0001). Las muestras se conservaron en alcohol (70 %) y en fijador formol-alcohol-agua (FAA). Las ninfas y adultos de las muestras en alcohol se montaron y observaron en el microscopio estereoscópico. Las muestras en FAA se procesaron y observaron en el microscopio electrónico de barrido (MEB). Como resultado, se obtuvieron fotografías y se identificaron las fases de desarrollo de T. rusellae mediante claves entomológicas.Received: August 05, 2014 / Accepted: March 10, 2015. Palabras clave:Ramón, agallas, plaga, caracterización, microscopio electrónico de barrido.

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Section: Resultsmentioning

confidence: 99%

Section: Agallas De T Rusellae En Hojas De B Alicastrumunclassified

Identificación del insecto agallador (Trioza rusellae Tuthill) en hojas de Brosimum alicastrum Swartz en Yucatán, México

Ascencio-Álvarez¹,

Martín-Mex²,

Tucuch-Haas³

et al. 2015

Rev Cha Se Cie For y del Amb

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“…For instance, the abundance and richness of leaf miners and galling insects tend to be higher in plants located in poor nutrient soils (Blanche and Westoby, 1995;Cuevas-Reyes et al, 2004;Mazía et al, 2004), whereas herbivory caused by chewer insects tends to be lower due to higher investment in immobile defenses (Coley et al, 1985;Boege and Dirzo, 2004). Since soil fertility was relatively similar between Araucaria Forest and tree monocultures (Fleck, 2005), bottom-up forces may exhibit similar strength in these environments, explaining why the relative abundance of different feeding guilds of herbivores was so similar between the studied habitats.…”

Section: Benitezmentioning

confidence: 99%

Herbivory, pathogens, and epiphylls in Araucaria Forest and ecologically-managed tree monocultures

Arnold¹,

Fonseca²

2011

Forest Ecology and Management

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“…), and negatively correlated with soil nutrient richness (Cuevas‐Reyes et al. ). In autecological studies on gall inducers, general patterns of GIA distributions remain unclear.…”

Section: Introductionmentioning

confidence: 99%

The distribution of a host‐specific canopy parasite is linked with local species diversity in a northern temperate forest

Patankar

Fuller

Smith

et al. 2013

J Vegetation Science

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Question Is the spatial distribution and density of the maple spindle gall mite Vasates aceriscrumena (MSGM) positively correlated with the distribution and density of its host? Is the distribution of MSGM influenced by non‐host species and abiotic factors? Location Temperate mixed hardwood forest stand, Haliburton Forest and Wildlife Reserve, Ontario, Canada. Methods We used the mapped locations of host and non‐host trees to investigate the cause of spatial variation in the density of MSGM within an 8.8‐ha forest plot in central Ontario, Canada. Gall densities were determined from fallen leaves, collected at 20‐m intervals. We used Mantel and partial Mantel tests to compute the correlation between gall density and several spatially variable biotic and abiotic factors: (1) host density and basal area, (2) density of non‐host stems, (3) overall stem density, (4) stem species diversity and (5) topography. Results The density of leaf galls was weakly correlated with host density and basal area. Although the correlation with host density and basal area was statistically significant, leaf gall density was more strongly correlated with overall tree species richness and overall stem density. Gall densities were highest at the boundaries of neighbourhoods containing high and moderate sugar maple (Acer saccharum) densities. Partial Mantel tests indicated that the observed spatial correlations held when controlling for the potential influence of topography. Conclusions Based on the spatial relationships documented here, we speculate that the mechanism responsible for the correlation between the MSGM and non‐host stems is parasite‐induced host stress. Separate studies have established a strong negative impact of the MSGM parasite on sugar maple stem growth. We suggest that by weakening the competitive ability of its host, the parasite indirectly promotes local species diversity through competitive release. Given the high diversity and prevalence of leaf gall parasites in mixed hardwood stands, depression of host dominance by leaf parasites may represent an unexplored mechanism for the maintenance of species diversity in northern temperate forests.

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Spatial patterns of herbivory by gall‐forming insects: a test of the soil fertility hypothesis in a Mexican tropical dry forest

Cited by 51 publications

References 42 publications

Identificación del insecto agallador (Trioza rusellae Tuthill) en hojas de Brosimum alicastrum Swartz en Yucatán, México

Identificación del insecto agallador (Trioza rusellae Tuthill) en hojas de Brosimum alicastrum Swartz en Yucatán, México

Herbivory, pathogens, and epiphylls in Araucaria Forest and ecologically-managed tree monocultures

The distribution of a host‐specific canopy parasite is linked with local species diversity in a northern temperate forest

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