Critical studies on the sexuality of southern Argentinian Ericaceae

Cambi, Viviana Nora; Hermann, Paula M.

doi:10.1007/bf00192760

Cited by 6 publications

(3 citation statements)

References 28 publications

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“…Palser, 1979;Anderson and Levine, 1982;Powlesland, Philipp, and Lloyd, 1985;Tucker, 1988;Cambi and Hermann, 1989), and the incidence of dioecy has been correlated with numerous traits (e.g., size and longevity, pollination by small generalist insects- Bawa, 1980; wind-pollinated woody plants- Freeman, Harper, and Ostler, 1980;animal-dispersed gymnosperms-Givnish, 1980; self-incompatibility - Thomson and Barrett, 1981; growth habit and fruit type in the flora of'Puerto Rico and the Virgin Islands- Flores and Schemske, 1984; growth form, floral type, and fruit type -Fox, 1985;fleshy fruits-Muenchow, 1987; type of pollination, type of fruit, and woodiness in the Cape flora of South Africa -Steiner, 1988). or statistical analyses, and Brian McCarthy for his preparation ofmost ofthe figures-their assistance was financed by the Department of Biological Sciences and by a 1987-1988 grant from the Rutgers Research Council (#2-02272); and John Launchbaugh and Clenton Owensby for hospitality and access to field sites near Hays and Manhattan, Kansas.…”

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Evolution of Dioecy in Buchloe Dactyloides (Gramineae): Tests for Sex‐specific Vegetative Characters, Ecological Differences, and Sexual Niche‐partitioning

Quinn

1991

American J of Botany

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Buchloe dactyloides is a perennial dioecious grass in which male and female inflorescences are so strikingly dimorphic that they were originally assigned to different genera. The objective of this paper is to present the results of tests for sex‐specific vegetative characters, ecological differences, and sexual niche‐partitioning, combining them with prior information on the reproductive biology of Buchloe for an evaluation of the key factors leading to the evolution of dioecy and sexual dimorphism. Field and greenhouse data were collected from Oklahoma and Kansas populations on vegetative characters, allocation to reproduction, and relative growth and competitive success along resource gradients. Except for greater susceptibility to leaf rust by males, there were no significant differences between males and females in vegetative characters, total biomass, or reproductive effort. Field studies of spatial distributions of males and females failed to show any relation to soil, topography, or soil moisture. In a 45‐month greenhouse experiment starting at the seedling stage, the relative growth and competitive success of randomly paired individuals showed no evidence for differential competitive success or for niche‐partitioning of males and females. The “outcrossing advantage” and subsequent sexual specialization of the female inflorescence appear to be the major factors underlying this dimorphic system.

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confidence: 99%

Evolution of Dioecy in Buchloe Dactyloides (Gramineae): Tests for Sex‐specific Vegetative Characters, Ecological Differences, and Sexual Niche‐partitioning

Quinn

1991

American J of Botany

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“…2004 y trabajos allí citados). En lo que atañe a nuestra región, botánicos como Reiche (1905), Kausel (1949), Sleumer (1934Sleumer ( , 1935Sleumer ( , 1951Sleumer ( , 1959Sleumer ( , 1985, , Cambi & Hermann (1989), Hermann & Cambi (1992), Judd & Hermann (1990), efectuaron estudios en especies nativas mientras que otros autores (Cabrera, 1983; en sendas contribuciones florísticas, relevaron los taxones que habitan en la Patagonia argentina y en la provincia de Jujuy.…”

Section: Introductionunclassified

Contribución a La Flora Vascular De La República Argentina: Familia Ericaceae

Teillier¹,

Amarilla²,

Antón³

2019

Darwiniana, nueva serie

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Teillier, S.; L. D. Amarilla & A. M. Anton. 2019. Contribution to the Vascular Flora of Argentina: Family Ericaceae. Darwiniana, nueva serie 7(1): 68-92.As a preview of the publication of the volume that involves the Ericaceae of Argentina, a treatment of the family in this country is presented. Six genera, 18 species, and two varieties inhabit in Argentina. Most of the genera (Empetrum, Gayloussacia, Lebetanthus, and Vaccinium) have a single species in the country, being two for Agarista, and 12 for Gaultheria; two varieties are recognized in Gaultheria pumila, totalizing 20 taxa, the majority of which are endemic to. The binomial Gautheria myrsinoides is proposed as a substitute for Pernettya prostrata and lectotypes are designated for Gaultheria florida, Gaultheria salicifolia, Pernettya breviflora, Pernettya elegans, Pernettya litoralis, Pernettya melanocarpa and Pernettya minima. This article also includes dichotomous keys, one to recognize the genera present in Argentina and the other to identify the species within each genus. Observations in relevant cases, select studied material, geographic distribution, habitat, and illustrations for three species are included. Resumen. Teillier, S.; L. D. Amarilla & A. M. Anton. 2019. Contribución a la Flora Vascular de la República Argentina: Familia Ericaceae. Darwiniana, nueva serie 7(1): 68-92.Como adelanto de la publicación del volumen que involucra a las Ericaceae de Argentina, se presenta el tratamiento de la familia para el país. Seis géneros, 18 especies y dos variedades habitan en la Argentina. La mayoría de los géneros (Empetrum, Gayloussacia, Lebetanthus y Vaccinium) cuentan con una única especie en el país, siendo dos para Agarista y 12 para Gaultheria; se reconocen dos variedades en Gaultheria pumila, totalizando así 20 taxones, en su gran mayoría endémicos. Se propone el binomio Gaultheria myrsinoides para sustituir a Pernettya prostrata y se designan lectotipos para Gaultheria florida, Gaultheria salicifolia, Pernettya breviflora, Pernettya elegans, Pernettya litoralis, Pernettya melanocarpa y Pernettya minima. Este artículo incluye, además, claves dicotómicas, una de ellas para reconocer a los géneros de la Argentina y otra para identificar las especies de cada género. Se incluyen observaciones en los casos pertinentes, material estudiado selecto, distribución geográfica, hábitat e ilustraciones de todas las especies.

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“…or statistical analyses, and Brian McCarthy for his preparation ofmost ofthe figures-their assistance was financed by the Department of Biological Sciences and by a 1987-1988 grant from the Rutgers Research Council (#2-02272); and John Launchbaugh and Clenton Owensby for hospitality and access to field sites near Hays and Manhattan, Kansas. Palser, 1979;Anderson and Levine, 1982;Powlesland, Philipp, and Lloyd, 1985;Tucker, 1988;Cambi and Hermann, 1989), and the incidence of dioecy has been correlated with numerous traits (e.g., size and longevity, pollination by small generalist insects- Bawa, 1980;wind-pollinated woody plants-Freeman, Harper, and Ostler, 1980;animal-dispersed gymnosperms-Givnish, 1980; self-incompatibility - Thomson and Barrett, 1981; growth habit and fruit type in the flora of'Puerto Rico and the Virgin Islands- Flores and Schemske, 1984; growth form, floral type, and fruit type -Fox, 1985; fleshy fruits- Muenchow, 1987; type of pollination, type of fruit, and woodiness in the Cape flora of South Africa -Steiner, 1988). But despite Baker's (1984) conclusion that further progress depends on the study of each case of dioecy individually for what it may tell of the evolution of the dioecious habit, there has remained a paucity of studies that have investigated each of the factors potentially underlying the evolution of dioecy in a taxon.…”

mentioning

confidence: 99%

Evolution of Dioecy in Buchloe dactyloides (Gramineae): Tests for Sex-Specific Vegetative Characters, Ecological Differences, and Sexual Niche-Partitioning

Quinn¹

1991

American Journal of Botany

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JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.Buchloe dactyloides is a perennial dioecious grass in which male and female inflorescences are so strikingly dimorphic that they were originally assigned to different genera. The objective of this paper is to present the results of tests for sex-specific vegetative characters, ecological differences, and sexual niche-partitioning, combining them with prior information on the reproductive biology of Buchloe for an evaluation of the key factors leading to the evolution of dioecy and sexual dimorphism. Field and greenhouse data were collected from Oklahoma and Kansas populations on vegetative characters, allocation to reproduction, and relative growth and competitive success along resource gradients. Except for greater susceptibility to leaf rust by males, there were no significant differences between males and females in vegetative characters, total biomass, or reproductive effort. Field studies of spatial distributions of males and females failed to show any relation to soil, topography, or soil moisture. In a 45-month greenhouse experiment starting at the seedling stage, the relative growth and competitive success ofrandomly paired individuals showed no evidence for differential competitive success or for niche-partitioning of males and females. The "outcrossing advantage" and subsequent sexual specialization of the female inflorescence appear to be the major factors underlying this dimorphic system.

show abstract

Critical studies on the sexuality of southern Argentinian Ericaceae

Cited by 6 publications

References 28 publications

Evolution of Dioecy in Buchloe Dactyloides (Gramineae): Tests for Sex‐specific Vegetative Characters, Ecological Differences, and Sexual Niche‐partitioning

Evolution of Dioecy in Buchloe Dactyloides (Gramineae): Tests for Sex‐specific Vegetative Characters, Ecological Differences, and Sexual Niche‐partitioning

Contribución a La Flora Vascular De La República Argentina: Familia Ericaceae

Evolution of Dioecy in Buchloe dactyloides (Gramineae): Tests for Sex-Specific Vegetative Characters, Ecological Differences, and Sexual Niche-Partitioning

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