Seed Dispersal Spectrum of Woody Species in South Ecuadorian Dry Forests: Environmental Correlates and the Effect of Considering Species Abundance

Jara‐Guerrero, Andrea; Cruz, Marcelino de la; Méndez, Marcos

doi:10.1111/j.1744-7429.2011.00754.x

Cited by 63 publications

(60 citation statements)

References 45 publications

(146 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This percentage is relatively low compared to estimates from savannas and dry forests in South America that contain up to 25-42% of species adapted to wind dispersal (López & Ramírez 1989, Griz & Machado 2001, Jara-Guerrero et al 2011. The majority of wind-dispersed disseminules in Neotropical rainforests are produced by relatively few large families including Apocynaceae, Asteraceae, Bignoniaceae, Bromeliaceae, Fabaceae, Malpighiaceae, Malvaceae, Meliaceae, Orchidaceae, Rutaceae, and Sapindaceae (Mori & Brown 1994, Mirle & Burnham 1999.…”

Section: Introductionmentioning

confidence: 88%

Paleocene wind-dispersed fruits and seeds from Colombia and their implications for early Neotropical rainforests

Herrera

Manchester

Carvalho

et al. 2014

Acta Palaeobotanica

View full text Add to dashboard Cite

ABSTRACT. Extant Neotropical rainforests are well known for their remarkable diversity of fruit and seed types. Biotic agents disperse most of these disseminules, whereas wind dispersal is less common. Although wind-dispersed fruits and seeds are greatly overshadowed in closed rainforests, many important families in the Neotropics (e.g., Bignoniaceae, Fabaceae, Malvaceae, Orchidaceae, Sapindaceae) show numerous morphological adaptations for anemochory (i.e. wings, accessory hairs). Most of these living groups have high to moderate levels of plant diversity in the upper levels of the canopy. Little is known about the fossil record of wind-dispersed fruits and seeds in the Neotropics. Six new species of disseminules with varied adaptations for wind dispersal are documented here. These fossils, representing extinct genera of Ulmaceae, Malvaceae, and some uncertain families, indicate that wind-dispersed fruit and seed syndromes were already common in the Neotropics by the Paleocene, coinciding with the early development of multistratal rainforests. Although the major families known to include most of the wind-dispersed disseminules in extant rainforests are still missing from the Paleogene fossil record of South and Central America, the new fossils imply that anemochory was a relatively important product and/or mechanism of plant evolution and diversification in early Neotropical rainforests.

show abstract

Section: Introductionmentioning

confidence: 88%

Paleocene wind-dispersed fruits and seeds from Colombia and their implications for early Neotropical rainforests

Herrera

Manchester

Carvalho

et al. 2014

Acta Palaeobotanica

View full text Add to dashboard Cite

show abstract

“…Wider pathways benefit anemochorous species because the aerodynamic design of their propagules enable them to be easily wind-transported for long distances in open environments (Howe & Smallwood 1982;Jara-Guerrero et al 2011). Changes in the frequency of dispersal strategies are a result of favorable habitat conditions and disperser activity (wind vs. vertebrate dispersal) coupled with specific life forms (shrubs vs. trees) and the species frequency in these groups through successional stages (Tabarelli & Peres 2002).…”

Section: Discussionmentioning

confidence: 99%

Pathways affect vegetation structure and composition in the Atlantic Forest in southeastern Brazil

et al. 2017

View full text Add to dashboard Cite

Although impacts generated by gaps can aff ect vegetation, few studies have addressed these impacts in the Atlantic Forest. Our aim was to investigate the eff ects of pathways of varying widths on vegetation structure and composition, considering dispersal syndromes, diversity, life forms, successional categories and threatened and exotic species occurrence in the Atlantic Forest. We studied three pathways with widths of 2, 10 and 20 m, intersecting a protected area in southeastern Brazil. To assess edge eff ects, plots were established adjacent to paths (edge) and 35 m from the edge (neighborhood), and in a control area without pathways. Wider pathways (10 and 20 m) exhibited reduced tree height and diameter, high liana density, exotic species, and a high proportion of pioneer and anemochorous species. In conclusion, our results indicate that the vegetation structure of narrow pathways (2 m) is similar to the control area, and that wide linear gaps cause negative eff ects on vegetation and extend to a distance of at least 35 m into the forest interior. Considering that linear gaps generate permanent eff ects to vegetation and may aff ect other organisms, we suggest that these eff ects must be considered for successful management of protected areas, including planning and impact mitigation.

show abstract

“…This study demonstrates the complexity of dispersal in woody species of the tropical deciduous forest, and further studies should explore the infl uence of spatial scale, as well as proximal and historic factors. Key words: Chamela, dispersal syndromes, lianas, trees.A l comparar distintos espectros de dispersión del bosque tropical caducifolio en el Neotrópico, se ha detectado que la diseminación por animales (zoocoria) y por viento (anemocoria) son los síndromes mejor representados (Gottsberger y Silberbauer-Gottsberger, 1983;Wikander, 1984;Gentry, 1995;Machado et al, 1997;Gillespie, 1999; Grizy Machado, 2001;Chain-Guadarrama, 2005;Jara-Guerrero et al, 2011). Para el caso particular de los árboles, la zoocoria es el más frecuente, con valores que oscilan entre 45 y 65.7%, seguido por la anemocoria, que engloba entre 23 y 38% de las especies (Frankie et al…”

unclassified

“…A l comparar distintos espectros de dispersión del bosque tropical caducifolio en el Neotrópico, se ha detectado que la diseminación por animales (zoocoria) y por viento (anemocoria) son los síndromes mejor representados (Gottsberger y Silberbauer-Gottsberger, 1983;Wikander, 1984;Gentry, 1995;Machado et al, 1997;Gillespie, 1999;Grizy Machado, 2001;Chain-Guadarrama, 2005; Jara- Guerrero et al, 2011). Para el caso particular de los árboles, la zoocoria es el más frecuente, con valores que oscilan entre 45 y 65.7%, seguido por la anemocoria, que engloba entre 23 y 38% de las especies (Frankie et al, 1974;Gentry, 1995;Gillespie, 1999;Arredondo-Amezcua, 2004;ChainGuadarrama, 2005;Jara-Guerrero et al, 2011).…”

unclassified

“…Para el caso particular de los árboles, la zoocoria es el más frecuente, con valores que oscilan entre 45 y 65.7%, seguido por la anemocoria, que engloba entre 23 y 38% de las especies (Frankie et al, 1974;Gentry, 1995;Gillespie, 1999;Arredondo-Amezcua, 2004;ChainGuadarrama, 2005;Jara-Guerrero et al, 2011). Sin embargo, se deben considerar los resultados de Wikander (1984), LIBERTAD ARREDONDO-AMEZCUA ET AL.…”

unclassified

See 1 more Smart Citation

Espectro de dispersión de la flora leñosa del bosque tropical caducifolio en el Neotrópico

Arredondo-Amezcua

López-Toledo

2015

Bot. Sci.

View full text Add to dashboard Cite

Resumen: Mediante una revisión de información bibliográfi ca y de herbario, se analizó el espectro de dispersión de árboles y lianas de localidades con bosque tropical caducifolio en América, con el objetivo de determinar si este atributo se modifi ca al considerar diferentes conjuntos fl orísticos, como fl oras leñosas regionales o parcelas de muestreo de 0.1 ha. Para estas últimas, se cuantifi có el grado de similitud del espectro de dispersión, obtenido mediante el conteo de especies o por el número de individuos. A una escala local, las proporciones de los síndromes de dispersión fueron similares entre la fl ora y lo obtenido en los muestreos, pero los síndromes de dispersión difi rieron entre sí de manera signifi cativa. A nivel Neotropical, el análisis entre tres fl oras también varió signifi cativamente entre síndromes. Las comparaciones entre parcelas mostraron que existen diferencias signifi cativas entre localidades, tanto entre síndromes de dispersión como entre la interacción síndrome-localidad. Este resultado persiste al analizar formas de crecimiento de manera independiente o considerando su abundancia. Las divergencias encontradas entre localidades no fueron explicadas por la latitud o variables climáticas; pero tanto a nivel local como Neotropical, estas son más claras para las formas de crecimiento, ya que la zoocoria es más importante para árboles y la anemocoria para lianas. Los resultados constatan la complejidad del fenómeno de la dispersión de especies leñosas del bosque tropical caducifolio, por lo que futuros estudios deberán indagar con más detalle la infl uencia de la escala espacial, así como factores proximales e históricos. Palabras clave: árboles, Chamela, lianas, síndromes de dispersión.Abstract: Through a bibliographic and herbarium review, an analysis was conducted of the dispersal spectrum of woody plants in various locations of the tropical deciduous forest of America. Our aim was to determine whether modifi cations to the dispersal spectrum exist among different fl oristic groups, particularly in the fl oristic checklist or within plots of 0.1 ha. The degree of similarity among dispersal spectra was estimated, considering the number of species or individuals. At the local scale, percentages of dispersal syndromes did not differ among the fl ora obtained by sampling, but the dispersal syndromes differed signifi cantly from each other. At the Neotropical level, the dispersal syndromes of three fl oras also differed signifi cantly. At plot level, different sites also differed signifi cantly in terms of dispersal syndromes and in syndrome-site interactions. This result persisted on analysis of different growth forms or when considering abundance. Inter-site differences were not explained by latitude or climatic variables. At both local and Neotropical levels, the differences were more evident in terms of growth form, since trees and lianas were more zoochorous and anemochorous, respectively. This study demonstrates the complexity of dispersal in woody species of the tropical decid...

show abstract

Seed Dispersal Spectrum of Woody Species in South Ecuadorian Dry Forests: Environmental Correlates and the Effect of Considering Species Abundance

Cited by 63 publications

References 45 publications

Paleocene wind-dispersed fruits and seeds from Colombia and their implications for early Neotropical rainforests

Paleocene wind-dispersed fruits and seeds from Colombia and their implications for early Neotropical rainforests

Pathways affect vegetation structure and composition in the Atlantic Forest in southeastern Brazil

Espectro de dispersión de la flora leñosa del bosque tropical caducifolio en el Neotrópico

Contact Info

Product

Resources

About