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Ecosistemas
Article . 2003
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Microorganismos del suelo, plantas en peligro de extinción y la conservación del Matorral de Florida

Authors: Christine V. Hawkes;

Microorganismos del suelo, plantas en peligro de extinción y la conservación del Matorral de Florida

Abstract

Las costras biológicas son una característica común pero inconspicua de los suelos con buen drenaje en el Matorral de Florida. Estas costras biológicas están constituidas por algas, cianobacterias, hongos, bacterias y, ocasionalmente, musgos y líquenes. En ausencia de disturbio, estos microorganismos y sus excreciones se asocian con partículas inorgánicas, formando una capa en la superficie del suelo que se hace más cohesiva con el tiempo. Al cambiar la estructura física y la naturaleza biológica de la superficie del suelo, las costras biológicas también modifican los ciclos hidrológicos y de nutrientes que afectan a las plantas vasculares. Mis estudios han evaluado las interacciones de las costras biológicas del suelo con cuatro especies herbáceas en peligro de extinción usando una combinación de experimentos de campo e invernadero. Las costras influyeron en la germinación de semillas de tres de las cuatro especies, incrementándola cuando las costras estaban intactas. Basándome en comparaciones entre la abundancia natural y la adición de trazas de 15N, encontré que las costras biológicas mediaban el ciclo de nitrógeno en el Matorral. Las costras en el Matorral de Florida parecen jugar un papel crucial en el funcionamiento de sus comunidades y ecosistemas, sugiriendo que una perspectiva ecosistémica será benéficiosa para su gestión.

Keywords

Environmental sciences, Microorganismos, Plantas en peligro de extinción, Florida, Matorral, GE1-350, Suelo, Ecología, Costras biológicas

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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
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gold