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Clonal growth in Zostera marina populations

Crecemento clonal en poboacións de Zostera marina
Authors: Hoces Gutiérrez, Ángela;

Clonal growth in Zostera marina populations

Abstract

[Resumen] Las praderas marinas son hábitats altamente productivos y son muy importante para muchas otras especies que viven entre estas plantas. A pesar de su gran abundancia, la cobertura de estas praderas está disminuyendo debido al impacto humano. Por esto, hemos intentado inferir si realmente hay diferencias en varios caracteres morfológicos entre dos hábitats con niveles de perturbación distintos causados por la actividad humana. Para ello, recogimos muestras de 25 fragmentos clonales de ambos hábitats y analizamos las diferencias entre las distancias internodales, la longitud de la hoja y la longitud de la vaina de la hoja, así como la cantidad de plantas que habían desarrollado estructuras sexuales. En contra de nuestras primeras expectativas, solo había diferencias significativas en la distancia entre nudos del rizoma y también en la producción de estructuras sexuales. Esto puede ser explicado con la teoría de escape, la cual dice que una planta puede producir rizomas más largos para así evitar el mismo hábitat desfavorable para su descendencia.

[Abstract] The seagrass meadows are really highly productive habitats and very important for many other species that use to live within these plants. Despite their large abundance, the coverage of seagrass is decreasing due to the human impact. Because of this, we have tried to infer if there are actually differences in some morphological characteristics between two habitats with different level of disturbance caused by human activity. For it, we took samples of 25 clonal fragments in both habitats and we analyzed the differences between internodes distance, leaf length and leaf sheath length, and the amount of plants with developed sexual structures. Against our first expectations, there were only significant differences in the length of the internodes distance and in the production of sexual structures. This can be explained with the escape theory, which says that the plant may produce longer rhizomes in order to avoid the same unfavorable habitat for its offspring.

Traballo fin de grao (UDC.CIE). Bioloxía. Curso 2015/2016

Country
Spain
Related Organizations
Keywords

Escape theory, Teoría de escape, Human impact, Disturbance, Perturbación, Zostera marina, Impacto humano, Crecimiento clonal, Clonal growth

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green