High abundance of dioecious plants in a tropical coastal vegetation

Matallana, Gloria; Wendt, Tânia; Araújo, Dorothy Sue Dunn de; Scarano, Fábio Rúbio

doi:10.3732/ajb.92.9.1513

Cited by 74 publications

(73 citation statements)

References 52 publications

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“…The comparison of growth-form spectra also reveals important differences, because SV climbers were much more numerous, whereas forbs prevailed in savannahs. It is frustrating that biological spectra in Nizanda's flora can only be compared against a handful of studies, simply because they are not available or because they do not report comparable species classifications (e.g., Burke 2001;Matallana et al 2005;Zhu et al 2005;Çakan and Karataş 2006). Unfortunately, floristic research is being increasingly excluded from many research funding and publication priorities.…”

Section: Biological Spectramentioning

confidence: 97%

Vegetation Heterogeneity and Life-Strategy Diversity in the Flora of the Heterogeneous Landscape of Nizanda, Oaxaca, Mexico

et al. 2010

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We updated the floristic checklist of the Nizanda region, Isthmus of Tehuantepec (southern Mexico), characterized the occurring plant communities based on dominant species, and described the region's flora according to life form, growth form, growth type, and growth habit spectra. Ten years of botanical exploration, along with surveys in 188 100-m 2 samples from different vegetation types, provided the baseline floristic information. Ordination and classification analyses were performed to examine the degree of differentiation between communities. Geographical ranges of all species were used to assess biogeographical relationships of this flora. The inventory includes 920 species (553 genera, 124 families). More than one-third of the families were represented by a single species, whereas the 10 richest families had 43% of the species richness. Dendrograms showing plot classification at three taxonomic levels (species, genus and family) revealed savannah as the most strongly differentiated community amid seven vegetation types. Regarding growth forms, forbs and trees prevailed. Phanerophytes were the most common life form category, whereas herbs and woody plants were the dominant growth types. The largest richness for all taxonomic levels was recorded in the tropical dry forest. The expanded floristic knowledge gained for the Nizanda region provided better criteria to revise the classification scheme of its vegetation. Our preliminary biogeographical analysis illustrates the role of the Isthmus of Tehuantepec as a corridor for thermophilous floras between two oceanic watersheds, and as a natural distributional limit for several Mesoamerican plant species.

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Section: Biological Spectramentioning

confidence: 97%

Vegetation Heterogeneity and Life-Strategy Diversity in the Flora of the Heterogeneous Landscape of Nizanda, Oaxaca, Mexico

et al. 2010

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“…We have recently found that an exceptionally high proportion (37%) of the 27 most abundant plant species in this physiognomy (i.e., the open, patchy restinga vegetation) are dioecious, including C. hilariana (Matallana et al, 2005). This was unexpected given that the local flora in this geologically young habitat is predominantly originated from the neighbouring Atlantic rain forest (Araujo, 2000;Scarano, 2002 migration of plant species from a mesic forest to a harsh coastal environment.…”

Section: Introductionmentioning

confidence: 93%

Low fruit set in the abundant dioecious tree Clusia hilariana (Clusiaceae) in a Brazilian restinga

Faria¹,

Matallana²,

Wendt³

et al. 2006

Flora - Morphology, Distribution, Functional Ecology of Plants

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“…Indeed, we observed wasps, European and native bees visiting C. compacta flowers. Dioecy is strongly related to generalist entomophily (Matallana et al 2005, Matallana-Tobón 2010.…”

Section: Discussionmentioning

confidence: 99%

Flowering phenology of Catopsis compacta (Bromeliaceae), a dioecious epiphyte in an oak forest

Escobedo-Sarti¹,

Mondragón²

2016

Bot. Sci.

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Background: Knowledge of the flowering phenology of species with an epiphytic habit and a dioecious sexual system is scarce. Conclusions:The high flowering synchrony between the sexes, together with a flowering season that coincided with the period of highest rainfall when the number of arthropods (potential pollinators) is the highest, could favor breeding and, therefore, reproductive success. Key words: Bromeliaceae, Catopsis, epiphytes, phenology, dioecy. Fenología florar de Catopsis compacta (Bromeliaceae), una epífita decidua en un bosque de roble ResumenAntecedentes: El conocimiento de la fenología de floración de las especies con hábito epífito y sistema sexual dioico es escaso. Preguntas: En este estudio se evaluó la fenología de floración de una población de Catopsis compacta, una bromelia dioica, en un bosque de encino en Oaxaca, México, con el fin de contestar las siguientes preguntas: 1) ¿qué tipo de floración presenta la población de C. compacta? 2) ¿Cuál es el grado de sincronía entre individuos masculinos y femeninos? 3) ¿Cuál es el índice de sincronía a nivel poblacional? Metodos: En febrero de 2006, se marcaron 151 individuos ≥ 10 cm de altura en un cuadrante (20 × 20 m), y se midió su longitud total. Se realizaron censos mensuales, por un año para registrar su estado fenológico. En la etapa de floración, se contó el número de flores y frutos presentes en cada individuo. Resultados: La floración de ambos sexos tuvo una duración total de tres meses (mayo-julio). Del total de individuos marcados sólo 23 (15.23 %) florecieron; de 12 (52.17 %) pistilados y 11 (47.83 %) estaminados. El índice de sincronía entre hembras y machos fue de 0.958 ± 0.013. El índice de sincronía a nivel población fue de 0.833 ± 0.189. Conclusiones: La alta sincronía de floración entre ambos sexos, junto con el hecho que la época de floración coincida con el periodo de mayor precipitación, momento en que se presenta el mayor número de artrópodos (posibles polinizadores), podrían favorecer la polinización y en consecuencia el éxito reproductivo de la especie. Palabras clave: Bromeliaceae, Catopsis, epífitas, fenología, dioecia. Botanical Sciences

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High abundance of dioecious plants in a tropical coastal vegetation

Cited by 74 publications

References 52 publications

Vegetation Heterogeneity and Life-Strategy Diversity in the Flora of the Heterogeneous Landscape of Nizanda, Oaxaca, Mexico

Vegetation Heterogeneity and Life-Strategy Diversity in the Flora of the Heterogeneous Landscape of Nizanda, Oaxaca, Mexico

Low fruit set in the abundant dioecious tree Clusia hilariana (Clusiaceae) in a Brazilian restinga

Flowering phenology of Catopsis compacta (Bromeliaceae), a dioecious epiphyte in an oak forest

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