INVESTIGADORES
LENCINAS Maria Vanessa
artículos
Título:
Using assembly rules to measure the resilience of riparian plant communities to beaver invasion in subantarctic forests
Autor/es:
WALLEM, P; ANDERSON, CB; MARTÍNEZ PASTUR, G; LENCINAS, MV
Revista:
BIOLOGICAL INVASIONS
Editorial:
SPRINGER
Referencias:
Año: 2010 vol. 12 p. 325 - 335
ISSN:
1387-3547
Resumen:
The present study measures the resilience
of riparian herbaceous communities to beaver invasion
in subantarctic forests of southern Chile and Argentina.
Divergence in community composition and spatial
structure was measured comparing beaver-disturbed
and undisturbed vegetation assemblages along a
sequence of beaver meadow ages; the former by
performing a Principal Component Analysis and the
later by estimating a co-occurrence index (C-score).
Community composition and spatial structure of
vegetation showed an increasingly divergent trend
from undisturbed sites to older beaver meadows. These
results indicated that understory vegetation in deciduous
subantarctic forests was not resilient to beaver
invasion. Using assembly rules as a conceptual
framework, we propose a resilience index of host
communities to disturbances caused by herbivore
invaders that also can be used for subsequent restoration
programs to monitor the effectiveness of intervention
and mitigation efforts.
Community composition and spatial structure of
vegetation showed an increasingly divergent trend
from undisturbed sites to older beaver meadows. These
results indicated that understory vegetation in deciduous
subantarctic forests was not resilient to beaver
invasion. Using assembly rules as a conceptual
framework, we propose a resilience index of host
communities to disturbances caused by herbivore
invaders that also can be used for subsequent restoration
programs to monitor the effectiveness of intervention
and mitigation efforts.
Community composition and spatial structure of
vegetation showed an increasingly divergent trend
from undisturbed sites to older beaver meadows. These
results indicated that understory vegetation in deciduous
subantarctic forests was not resilient to beaver
invasion. Using assembly rules as a conceptual
framework, we propose a resilience index of host
communities to disturbances caused by herbivore
invaders that also can be used for subsequent restoration
programs to monitor the effectiveness of intervention
and mitigation efforts.
C-score).
Community composition and spatial structure of
vegetation showed an increasingly divergent trend
from undisturbed sites to older beaver meadows. These
results indicated that understory vegetation in deciduous
subantarctic forests was not resilient to beaver
invasion. Using assembly rules as a conceptual
framework, we propose a resilience index of host
communities to disturbances caused by herbivore
invaders that also can be used for subsequent restoration
programs to monitor the effectiveness of intervention
and mitigation efforts.