CERZOS   05458
CENTRO DE RECURSOS NATURALES RENOVABLES DE LA ZONA SEMIARIDA
Unidad Ejecutora - UE
artículos
Título:
Migration pattern suggested by terrestrial proximity as possible origin of wild annual Helianthus populations in central Argentina.
Autor/es:
MIGUEL CANTAMUTTO, LUIS TORRES, ALEJANDRO PRESOTTO, AGUSTINA GUTIÉRREZ, SOLEDAD URETA, MÓNICA POVERENE
Revista:
BIOLOGICAL INVASIONS
Editorial:
Springer
Referencias:
Año: 2008
ISSN:
1387-3547
Resumen:
There is a high interest to understand and
recreate the invasive process of successful non-native
plant invaders. The genetic tools provide scanty
information when the invasion is recent and there is
gene flow among the invader and its crop relative.
The concern about the government and private
companies responsibilities in the diffusion process
and the risk of occupancy of new areas motivated the
interest in two wild annual Helianthus species
naturalized in the central agricultural lands of
Argentina. We used multivariate techniques and
random tests to estimate the successive steps accomplished
by the plant invaders across transportation
routes, following an environmental and ecological
gradient. A minimum connection tree through road
distances was created considering dispersal from a
unique dispersal point for each species. The proposed
tree minimized, at the same time, the environmental
and the ecological distances calculated by Euclidean
and Gower indexes with abiotic and biotic habitat
variables, being significantly different from random
(P B 0.05). Our methodology allowed the development
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
variables, being significantly different from random
(P B 0.05). Our methodology allowed the development
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
variables, being significantly different from random
(P B 0.05). Our methodology allowed the development
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
naturalized in the central agricultural lands of
Argentina. We used multivariate techniques and
random tests to estimate the successive steps accomplished
by the plant invaders across transportation
routes, following an environmental and ecological
gradient. A minimum connection tree through road
distances was created considering dispersal from a
unique dispersal point for each species. The proposed
tree minimized, at the same time, the environmental
and the ecological distances calculated by Euclidean
and Gower indexes with abiotic and biotic habitat
variables, being significantly different from random
(P B 0.05). Our methodology allowed the development
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
variables, being significantly different from random
(P B 0.05). Our methodology allowed the development
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
variables, being significantly different from random
(P B 0.05). Our methodology allowed the development
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
Helianthus species
naturalized in the central agricultural lands of
Argentina. We used multivariate techniques and
random tests to estimate the successive steps accomplished
by the plant invaders across transportation
routes, following an environmental and ecological
gradient. A minimum connection tree through road
distances was created considering dispersal from a
unique dispersal point for each species. The proposed
tree minimized, at the same time, the environmental
and the ecological distances calculated by Euclidean
and Gower indexes with abiotic and biotic habitat
variables, being significantly different from random
(P B 0.05). Our methodology allowed the development
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
variables, being significantly different from random
(P B 0.05). Our methodology allowed the development
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
variables, being significantly different from random
(P B 0.05). Our methodology allowed the development
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.
of an approach for the best estimation of the
invasion route. This could be used to clarify the role
of different agents involved in the diffusion process
and to develop management strategies to prevent the
plant invasion. The migration pattern suggests that
after their historical introduction, both wild species
moved in successive steps across a biotic and abiotic
gradient, aided by anthropogenic activity along the
road connection infrastructure. There were no evidences
of escapes from sunflower breeding stations.