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

Ascencio-Álvarez, Ada; Martín-Mex, Rodolfo; Tucuch-Haas, J. Ismael; Váldez-Carrasco, Jorge; Huchin-Poot, Emy G.; Andrade‐Canto, Silvia B.; Gámez-Vázquez, Alfredo Josué; Larqué-Saavedra, Alfonso

doi:10.5154/r.rchscfa.2014.08.032

Cited by 2 publications

(3 citation statements)

References 12 publications

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“…Exploratory analyses carried out as part of our study showed that biomass, basal area, and stem density of deciduous species were higher on flat than on sloping sites (F ≥ 9.509, p ≤ 0.037). Flat sites provide more favorable conditions for vegetation development since they have deeper soils than sloping sites [62]. Besides the above, runoff and erosion take away water, mineral nutrients, and soil particles from sloping sites and deposit them on flat sites at the bottom.…”

Section: Influence Of Topography and Vegetation Structure On Litterfall Productionmentioning

confidence: 99%

“…The geomorphology of the region consists of karstic limestone, with flat areas alternating with gently sloping hills (10-25%). Cambisol and luvisol soils predominate in flat areas, and leptosol soils on hills and sites with rocky outcrops [62]. Secondary vegetation of different ages since abandonment predominates in the region as a result of the long-standing use of slash-and-burn subsistence agriculture [63,64].…”

Section: Introductionmentioning

confidence: 99%

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Multiple Factors Influence Seasonal and Interannual Litterfall Production in a Tropical Dry Forest in Mexico

Morffi-Mestre

Ángeles‐Pérez

Powers

et al. 2020

Forests

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Litterfall production plays a fundamental role in the dynamics and function of tropical forest ecosystems, as it supplies 70–80% of nutrients entering the soil. This process varies annually and seasonally, depending on multiple environmental factors. However, few studies spanning several years have addressed the combined effect of climate variables, successional age, topography, and vegetation structure in tropical dry forests. In this study, we evaluated monthly, seasonal, and annual litterfall production over a five-year period in semideciduous dry forests of different successional ages growing on contrasting topographic conditions (sloping or flat terrain) in Yucatan, Mexico. Its relationship with climate and vegetation structural variables were also analyzed using multiple linear regression and generalized linear models. Litterfall was measured monthly in 12 litterfall traps of 0.5 m2 in three sampling clusters (sets of four 400 m2 sampling plots) established in forests of five successional age classes, 3–5, 10–17, 18–25, 60–79, and >80 years (in the latter two classes either on slopping or on flat terrain), for a total of 15 sampling clusters and 180 litterfall traps. Litterfall production varied between years (negatively correlated with precipitation), seasons (positively correlated with wind speed and maximum temperature), and months (negatively correlated with relative humidity) and was higher in flat than in sloping sites. Litterfall production also increased with successional age until 18–25 years after abandonment, when it attained values similar to those of mature forests. It was positively correlated with the aboveground biomass of deciduous species but negatively correlated with the basal area of evergreen species. Our results show a rapid recovery of litterfall production with successional age of these forests, which may increase with climate changes such as less precipitation, higher temperatures, and higher incidence of hurricanes.

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Section: Influence Of Topography and Vegetation Structure On Litterfall Productionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multiple Factors Influence Seasonal and Interannual Litterfall Production in a Tropical Dry Forest in Mexico

Morffi-Mestre

Ángeles‐Pérez

Powers

et al. 2020

Forests

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“…This raises two possibilities: (a) ruminants in the region have adapted to consuming this forage, even though it has a high calcium oxalate content, or (b) calcium oxalate could prevent herbivory from other organisms such as insects. Only one foliar insect pest (Trioza rusellae Tuthill, a psyllid that promotes the growth of gills in the leaves) for B. alicastrum in the state of Yucatan (Ascencio-Alvarez et al, 2015) has been reported to affect vegetative growth and consequently decrease photosynthetic rates (Cuevas-Reyes et al, 2004).…”

Section: Microbiological Analysesmentioning

confidence: 99%

Differences in oxalate–carbonate pathway of Brosimum alicastrum in karst homegarden and forest soils

Álvarez-Rivera

Estrada‐Medina

Jiménez-Osornio

et al. 2021

Soil Science Soc of Amer J

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The oxalate-carbonate pathway (OCP) allows atmospheric carbon dioxide (CO 2 atm) sequestration through deposition of CaCO 3 in soils. The participation of Brosimum alicastrum Sw. (Moracea) in the OCP has been demonstrated in traditional Maya agroforesty systems (homegardens) in Yucatan, Mexico, but remains unstudied in wild vegetation. To compare the OCP role of B. alicastrum trees associated to homegardens and forest, the calcium oxalate (CaC 2 O 4 ) content of leaves, bark, roots, and adjacent soil of 40 trees was measured, as well as the abundance of soil and rizospheric oxalothropic bacteria. The highest CaC 2 O 4 contents were present in leaves (45.37 g kg -1 ) and adjacent soil (576.93 mg kg -1 ) of wild trees. Oxalotrophic bacteria abundance was higher in the rhizospheric soil associated to wild trees. Soil CaC 2 O 4 content was positively correlated to soil Ca (r s = .911; p < .01) and CaCO 3 (r s = .885; p < .01) contents in wild trees and negatively correlated to soil redox potential (r s = -.625; p = .02). The CaC 2 O 4 contents and oxalotrophic bacteria abundance in soils indicate an active participation of B. alicastrum trees in the OCP in both systems, allowing the capture of CO 2 atm. The lower potential to sequester CO 2 in homegardens is mainly due to the use of the B. alicastrum as forage, which prevents the addition of litter to soil. If trees in homegardens were not defoliated, the amount of CO 2 atm captured by B. alicastrum in these systems would be greater than those in forest because the tree density in homegardens can be up to 18 times greater than in forest. INTRODUCTIONThe increase in greenhouse gas emissions and their concentration in the atmosphere is one of the main environmental challenges today. As one of the principal greenhouse gases, car-Abbreviations: OCP, oxalate-carbonate pathway.

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

Cited by 2 publications

References 12 publications

Multiple Factors Influence Seasonal and Interannual Litterfall Production in a Tropical Dry Forest in Mexico

Multiple Factors Influence Seasonal and Interannual Litterfall Production in a Tropical Dry Forest in Mexico

Differences in oxalate–carbonate pathway of Brosimum alicastrum in karst homegarden and forest soils

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