Induced responses in three tropical dry forest plant species - direct and indirect effects on herbivory

Oikos ◽  
2004 ◽  
Vol 107 (3) ◽  
pp. 541-548 ◽  
Author(s):  
Karina Boege
2008 ◽  
Vol 33 (2) ◽  
pp. 183-188 ◽  
Author(s):  
ALEJANDRO G. FARJI-BRENER ◽  
DORIAN CARVAJAL ◽  
MARÍA GABRIELA GEI ◽  
JUANITA OLANO ◽  
JUAN DAVID SÁNCHEZ

2009 ◽  
Vol 13 (1) ◽  
pp. 63 ◽  
Author(s):  
Yolanda Domínguez-Castellanos ◽  
Beatriz Hernandez Meza ◽  
Angeles Mendoza D. ◽  
Gerardo Ceballos González

Resumen: Se determinó la estructura y el contenido de las madrigueras de Liomys pictus por tipo de vegetación y temporada del año, en dos selvas tropicales del Pacífico Mexicano. Se encontraron 24 madrigueras: en la selva baja la mayoría son complejas, mientras que  en la selva mediana son lineales, por consiguiente y de acuerdo a la clasificación de las madrigueras, en selva baja se presentaron madrigueras múltiples y en selva mediana madrigueras simples. De acuerdo al contenido, las de selva baja tienen en promedio una mayor cantidad de materiales en comparación a las de selva mediana. Se catalogaron un total de 248 especies de plantas de estas 50 se comparten en ambos sitios, del total de las especies se llegaron a identificar sólo 77. Las familias más representativas fueron Leguminoseae, Euphorbiaceae y Convolvulaceae. La estructura de las madrigueras no esta determinada por la temporalidad, sin embargo el contenido esta determinado con la cantidad de material almacenado aunque la producción de semillas esta definido por el patrón de fructificación que esta dado a lo largo del año.Palabras clave: Madrigueras, estructura, contenido, Liomys pictus, Jalisco, México.Abstract: We determined the structure and contents of burrows of Liomys pictus by vegetation type and season in two tropical forests of the Mexican Pacific. 24 burrows were found in the tropical dry forest and most complex, in the semi deciduous forest is linear, and therefore according to the classification of the burrows in the tropical dry forest are more numerous and simple in the semi deciduous forest. According to the content, of the tropical dry forest have on average a greater amount of material compared to the semi deciduous forest. Were categorized a total of 248 plant species of these 50 sites are shared in both the total number of species is to determine 77. The most representative families were Leguminoseae, Euphorbiaceae and Convulvolaceae. The structure of the burrows is not affected by the timing, but the content is determined with the amount of stored material but seed production is defined by the pattern of fruit that is given throughout the year.Key words: Burrows, structure, food hoarding, Liomys pictus, Jalisco, Mexico.


Trees ◽  
2020 ◽  
Vol 34 (4) ◽  
pp. 1075-1086
Author(s):  
Joan Sebastian Aguilar-Peralta ◽  
Antonio González-Rodríguez ◽  
Yurixhi Maldonado-López ◽  
Marcílio Fagundes ◽  
Maurício L. Faria ◽  
...  

2014 ◽  
Vol 30 (3) ◽  
pp. 265-268 ◽  
Author(s):  
Moisés Méndez-Toribio ◽  
Ana María González-Di Pierro ◽  
Mauricio Quesada ◽  
Julieta Benítez-Malvido

Abstract:In dioecious plant species different frugivore activity between genders may influence the abundance and richness of the seedling banks underneath their canopies throughout seed removal and dispersal. In the tropical dry forest of Chamela, on the Pacific Coast of Mexico, the role of S. purpurea female trees as nucleation sites of regeneration was investigated. The standing density, species richness and dispersal syndrome of woody seedlings (i.e. trees and shrubs, 10–100 cm tall) recruited underneath and outside the canopy of 10 male and 10 female S. purpurea trees were recorded in a total of 160 1-m2 plots. Total density was greater in seedling communities associated with female trees (i.e. underneath and outside their canopies) as compared with male trees (231 vs. 153 seedlings, respectively); whereas overall species richness was greater underneath female canopies. Further, the density of zoochorous species were greater underneath the canopy of S. purpurea females (range = 0–5 plants m−2), than elsewhere (outside female canopies, range = 0–3 plants m−2; underneath and outside male canopies, range = 0–2 plants m−2), suggesting a directional dispersal bias towards them. Females of dioecious plant species may act as nucleation sites of initial seedling recruitment in tropical dry forests.


2017 ◽  
Vol 4 (1) ◽  
pp. 25-26
Author(s):  
Sebastián Montoya-Bustamante ◽  
Natalya Zapata-Mesa

During a 6-months research carried out in the Robles village (Jamundí municipality, Valle del Cauca Department, Colombia) in 2014, bat feces were collected to determine the diet of fruit-eating bats. This study area included farms and tropical dry forest remnants, where A. lituratus was the most generalist species, with 10 different plant species recorded in its diet, including Ficus, Psidium, Mangifera, Cecropia, and Piper species (Montoya-Bustamante et al., 2016). Within two (out of 130) different fecal samples an individual of Atta cephalotes (both workers) were found associated to Psidium guajava seeds and pulp


2019 ◽  
Vol 10 (2) ◽  
pp. 490-505 ◽  
Author(s):  
Salvador Mandujano ◽  
Ariana Barrera-Salazar ◽  
Antonio Vergara-Castrejón

El manejo de caprinos (Capra hircus) en sistemas extensivos es una práctica común en la Reserva de la Biosfera Tehuacán-Cuicatlán (RBTC), México. En el presente estudio se analizó la similitud de las especies de plantas consumidas por los caprinos de diferentes rebaños en un paisaje de la Cañada en Oaxaca. Se siguió a ocho rebaños en diferentes localidades durante las épocas de lluvias 2012 y la de seca 2013. Para determinar la similitud espacial y temporal entre los rebaños dependiendo de las plantas consumidas, se emplearon métodos de análisis multivariado, específicamente de agrupamiento jerárquico en el programa R. Los caprinos consumieron 84 especies, de las cuales 30 constituyen el 75 % de la dieta. De acuerdo a los análisis de similitud, Mimosa sp. y Acacia cochiliacantha fueron las especies consumidas con mayor frecuencia por todos los rebaños; mientras que Eleusine indica, Prosopis leavigata y Opuntia sp. fueron las siguientes en importancia. El rebaño de la localidad Tecomovaca fue el menos similar al resto de los rebaños estudiados. Estos resultados contribuyen al entendimiento de los hábitos de forrajeo de los caprinos en región tropical seca, donde la disponibilidad de recursos es marcadamente estacional.


2019 ◽  
Vol 19 (6) ◽  
Author(s):  
Fernando P Gaona ◽  
Anthony Guerrero ◽  
Elizabeth Gusmán ◽  
Carlos Iván Espinosa

Abstract Pollinators are crucial for ecosystem functionality; however, little is known about the plant species used by some of these, such as stingless bees. In this study, for the first time, pollen resources used by Melipona mimetica Cockerell (Hymenoptera: Apidae: Meliponini) and Scaptotrigona sp. Moure (Hymenoptera: Apidae: Meliponini) were identified through analysis of corbicular pollen found on worker bees in a dry forest in southern Ecuador. In total, 68 pollen types were identified belonging to 31 botanical families. The most represented plant families were Fabaceae (16%), Malvaceae (7%), and Boraginaceae (7%). Both stingless bee species exhibited a polylectic behavior, with an average of 16 pollen types collected by individual bees. Differences in abundances of pollen types collected by each species indicated distinct uses for these two bee species.


2020 ◽  
Vol 13 ◽  
pp. 194008292097895
Author(s):  
Sergio Díaz Infante ◽  
Carlos Lara ◽  
María del Coro Arizmendi

Background Despite the increasing knowledge of plant-pollinator interaction networks, the effects of human-induced disturbances on them have barely been studied. We analyzed whether land-use changes modified the structure and topology of plant-hummingbird interaction networks or promoted the integration of exotic plant species. Methods Fieldwork was carried out in two vegetation areas in Mexico: a protected tropical dry forest and nearby disturbed sites. For two years we registered hummingbird-plant interactions monthly in each area. Then, we constructed interaction matrices from these data and compared their assemblage structure. Results The conversion of original dry forest to disturbed habitats impacted some assemblage attributes of the plant-hummingbird network. In the disturbed sites, there were more plant species, mainly exotics, and one additional hummingbird species. Most network attributes remained the same except niche width and nestedness (pattern of interactions where generalists and specialists tend to interact with generalists whereas specialist-to-specialist interactions are infrequent), which were higher in the disturbed network. The generalist core in the disturbed network contained half of the core species in the conserved network. Implications for conservation Exotic plants that strongly integrated into the disturbed network may exert a large influence on network dynamics in these areas. Identifying the interacting species and their role provides valuable insights for their conservation and protection. Hummingbirds attracting native plant species have a potential for practical or ornamental use, and hummingbirds presence in human-modified landscapes not only provides positive aesthetic value to people but can additionally contribute to conserving native plants and the biodiversity associated with them.


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