MACNBR   00242
MUSEO ARGENTINO DE CIENCIAS NATURALES "BERNARDINO RIVADAVIA"
Unidad Ejecutora - UE
artículos
Título:
VEGETATION CHANGES ASSOCIATED TO
Autor/es:
FAGGI, A. Y J. DADON.
Revista:
MULTEQUINA
Editorial:
MULTEQUINA
Referencias:
Año: 2010 vol. 19 p. 53 - 76
ISSN:
0327-9375
Resumen:
This study shows evidences of
plant homogenization and
differentiation in the vascular flora
of 18 beach resorts located along
the northern end of the Argentinean
Atlantic coast. Data were collected
along a gradient of urban landuses
and activities, extending away
from city centres along a line 10
km-long. Ninety plant surveys
were carried out in 38 sampling
sites at resort centres, 2 km, 5 km
and 10 km from the urban edge.
We compared spatial and temporal
similarities among sites using
current and historical data.
Our results showed that the
current number of species (114)
more than doubled the number
recorded in pre-tourism times (40)
at the resort centres. Many
immigrant species were introduced
whether deliberately or not
from both neighbouring and far
away plant communities. Clearly,
exotics were more useful than
natives to exposing some preexisting
drivers along the gradient.
Eutrophication and Urban
green were the two major driving
forces affecting the distribution and
abundance of indicators species.