IFEVA   02662
INSTITUTO DE INVESTIGACIONES FISIOLOGICAS Y ECOLOGICAS VINCULADAS A LA AGRICULTURA
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Invasion by trees on grasslands and climate change.
Autor/es:
M. I. MIRANDA
Lugar:
Ciudad Universitaria, Buenos Aires, Argentina.
Reunión:
Workshop; Southern Hemisphere workshop series on Climate Change: CO2, The Biosphere And Climate.; 2010
Institución organizadora:
Abdus Salam ICTP, UBA - Princeton Univerity
Resumen:
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It could be possible
that biological invasions and it related effects could be seen globally as a
consequence of climate change, since a bunch of their predicted consequences
are completely according with changes driven by biological invasions. Some of
them are: Given the higher atmospheric CO2 concetrations, it is expected that
C3 plants will perform better than C4 ones. This prediction is completelly
accordingly with the fact that most of the invasive species are C3 plants. In
the case of study that I developed in PhD thesis, not only the invasive trees
are C3 and the replaced native vegetation are C4 plants, moreover, the plants
favoured by exotic trees are, also, exotic C3 grasses. That means, that there
could be more cases in which, both the invasive species and the asociated ones
are C3 plants that are replacing C4 native ones. Another prediction that quicly
make very interested on the relations between invasive species is that climate
change is expected to increase climatic variablity (topic developed in this
intitute!), and this enviromental change will probably benefit to invasive
species, which are frequently benefited by increased disturbance regimes.