Alejandro Igarza Sosa - Academia.edu (original) (raw)
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Papers by Alejandro Igarza Sosa
Frontiers in plant science, 2016
Phenotypic plasticity has been proposed as an important adaptive strategy for clonal plants in he... more Phenotypic plasticity has been proposed as an important adaptive strategy for clonal plants in heterogeneous habitats. Increased phenotypic plasticity can be especially beneficial for invasive clonal plants, allowing them to colonize new environments even when genetic diversity is low. However, the relative importance of genetic diversity and phenotypic plasticity for invasion success remains largely unknown. Here, we performed molecular marker analyses and a common garden experiment to investigate the genetic diversity and phenotypic plasticity of the globally important weed Alternanthera philoxeroides in response to different water availability (terrestrial vs. aquatic habitats). This species relies predominantly on clonal propagation in introduced ranges. We therefore expected genetic diversity to be restricted in the two sampled introduced ranges (the USA and China) when compared to the native range (Argentina), but that phenotypic plasticity may allow the species' full nich...
Plant Species Biology, 2010
Knowledge about the life-history traits of native conspecifics of exotic invasive plants can be o... more Knowledge about the life-history traits of native conspecifics of exotic invasive plants can be of fundamental importance in exploring their origin of invasiveness and disentangling distinct invasion mechanisms. We conducted a common garden experiment to examine ...
Plant Species Biology, 2011
To investigate how stem anatomical structure is linked to growth and resistance to stem-boring in... more To investigate how stem anatomical structure is linked to growth and resistance to stem-boring insects in a herbaceous species, six populations of alligatorweed (Alternan-thera philoxeroides) were grown in a common garden. Stem growth rate (GR) of A. ...
Acta Phytotaxonomica Sinica, 2007
Abstract In this review, we present a detailed account of Alternanthera philoxeroides (alligatorw... more Abstract In this review, we present a detailed account of Alternanthera philoxeroides (alligatorweed), including A. philoxeroides description, intraspecific variation from native to introduced regions, its life history strategies, invasion mechanisms, and management ...
Frontiers in plant science, 2016
Phenotypic plasticity has been proposed as an important adaptive strategy for clonal plants in he... more Phenotypic plasticity has been proposed as an important adaptive strategy for clonal plants in heterogeneous habitats. Increased phenotypic plasticity can be especially beneficial for invasive clonal plants, allowing them to colonize new environments even when genetic diversity is low. However, the relative importance of genetic diversity and phenotypic plasticity for invasion success remains largely unknown. Here, we performed molecular marker analyses and a common garden experiment to investigate the genetic diversity and phenotypic plasticity of the globally important weed Alternanthera philoxeroides in response to different water availability (terrestrial vs. aquatic habitats). This species relies predominantly on clonal propagation in introduced ranges. We therefore expected genetic diversity to be restricted in the two sampled introduced ranges (the USA and China) when compared to the native range (Argentina), but that phenotypic plasticity may allow the species' full nich...
Plant Species Biology, 2010
Knowledge about the life-history traits of native conspecifics of exotic invasive plants can be o... more Knowledge about the life-history traits of native conspecifics of exotic invasive plants can be of fundamental importance in exploring their origin of invasiveness and disentangling distinct invasion mechanisms. We conducted a common garden experiment to examine ...
Plant Species Biology, 2011
To investigate how stem anatomical structure is linked to growth and resistance to stem-boring in... more To investigate how stem anatomical structure is linked to growth and resistance to stem-boring insects in a herbaceous species, six populations of alligatorweed (Alternan-thera philoxeroides) were grown in a common garden. Stem growth rate (GR) of A. ...
Acta Phytotaxonomica Sinica, 2007
Abstract In this review, we present a detailed account of Alternanthera philoxeroides (alligatorw... more Abstract In this review, we present a detailed account of Alternanthera philoxeroides (alligatorweed), including A. philoxeroides description, intraspecific variation from native to introduced regions, its life history strategies, invasion mechanisms, and management ...