Biotic and abiotic constraints to a plant invasion in vegetation communities of Tierra del Fuego
The biotic resistance theory relates invader success to species richness, and predicts that, as species richness increases, invasibility decreases. The relationship between invader success and richness, however, seems to be positive at large scales of analysis, determined by abiotic constraints, and...
Guardado en:
| Otros Autores: | , , , |
|---|---|
| Formato: | Artículo |
| Lenguaje: | Inglés |
| Materias: | |
| Acceso en línea: | http://ri.agro.uba.ar/files/intranet/articulo/2013rauber.pdf LINK AL EDITOR |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
| LEADER | 07880cab a22012497a 4500 | ||
|---|---|---|---|
| 001 | AR-BaUFA000520 | ||
| 003 | AR-BaUFA | ||
| 005 | 20221101134836.0 | ||
| 008 | 181208t2013 |||||o|||||00||||eng d | ||
| 999 | |c 46954 |d 46954 | ||
| 022 | |a 1442-9985 | ||
| 024 | |a 10.1111/j.1442-9993.2012.02427.x | ||
| 040 | |a AR-BaUFA |c AR-BaUFA | ||
| 245 | 1 | 0 | |a Biotic and abiotic constraints to a plant invasion in vegetation communities of Tierra del Fuego |
| 520 | |a The biotic resistance theory relates invader success to species richness, and predicts that, as species richness increases, invasibility decreases. The relationship between invader success and richness, however, seems to be positive at large scales of analysis, determined by abiotic constraints, and it is to be expected that it is negative at small scales, because of biotic interactions. Moreover, the negative relationship at small scales would be stronger within species of the same functional group, because of having similar resource exploitation mechanisms. We studied the relationship between the cover of a worldwide invader of grasslands, Hieracium pilosella L., and species richness, species diversity and the cover of different growth forms at two different levels of analysis in 128 sites during the initial invasion process in the Fuegian steppe, Southern Patagonia, Argentina. At regional level, the invader was positively correlated to total [r=0.28, P=0.003], exotic [r=0.273, P=0.004], and native species richness [r=0.210, P=0.026], and to species diversity [r=0.193, P=0.041]. At community level, we found only a weak negative correlation between H. pilosella and total richness [r=-0.426, P=0.079] and diversity [r=-0.658, P=0.063]. The relationship between the invader and other species of the same growth form was positive both at regional [r=0.484, P less than 0.001] and community [r=0.593, P=0.012] levels. Consequently, in the period of establishment and initial expansion of this exotic species, our results support the idea that invader success is related to abiotic factors at large scales of analysis. Also, we observed a possible sign of biotic constraint at community level, although this was not related to the abundance of species of the same growth form. | ||
| 653 | 0 | |a BIOLOGICAL INVASION | |
| 653 | 0 | |a FUNCTIONAL DIVERSITY | |
| 653 | 0 | |a GROWTH FORM | |
| 653 | 0 | |a HIERACIUM PILOSELLA L | |
| 653 | 0 | |a SPECIES DIVERSITY | |
| 653 | 0 | |a ABUNDANCE | |
| 653 | 0 | |a DICOTYLEDON | |
| 653 | 0 | |a FUNCTIONAL GROUP | |
| 653 | 0 | |a GROWTH FORM | |
| 653 | 0 | |a INVASIBILITY | |
| 653 | 0 | |a NATIVE SPECIES | |
| 653 | 0 | |a PLANT COMMUNITY | |
| 653 | 0 | |a SPECIES RICHNESS | |
| 653 | 0 | |a STEPPE | |
| 653 | 0 | |a ARGENTINA | |
| 653 | 0 | |a PATAGONIA | |
| 653 | 0 | |a TIERRA DEL FUEGO [[PRV] ARGENTINA] | |
| 653 | 0 | |a HIERACIUM PILOSELLA | |
| 700 | 1 | |9 67636 |a Rauber, Ruth B. | |
| 700 | 1 | |a Collantes, Marta Beatriz |9 25260 | |
| 700 | 1 | |9 20940 |a Cipriotti, Pablo Ariel | |
| 700 | |a Anchorena, Juan |9 41815 | ||
| 773 | |t Austral Ecology : a journal of ecology in the southern hemisphere |g Vol.38, no.4 (2013), p.436-442 | ||
| 856 | |u http://ri.agro.uba.ar/files/intranet/articulo/2013rauber.pdf |i En reservorio |q application/pdf |f 2013rauber |x MIGRADOS2018 | ||
| 856 | |u http://www.wiley.com/ |x MIGRADOS2018 |z LINK AL EDITOR | ||
| 900 | |a as | ||
| 900 | |a 20141009 | ||
| 900 | |a N13 | ||
| 900 | |a SCOPUS | ||
| 900 | |a N13SCOPUS | ||
| 900 | |a a | ||
| 900 | |a s | ||
| 900 | |a ARTICULO | ||
| 900 | |a EN LINEA | ||
| 900 | |a 14429985 | ||
| 900 | |a 10.1111/j.1442-9993.2012.02427.x | ||
| 900 | |a ^tBiotic and abiotic constraints to a plant invasion in vegetation communities of Tierra del Fuego | ||
| 900 | |a ^aRauber^bR.B. | ||
| 900 | |a ^aCollantes^bM.B. | ||
| 900 | |a ^aCipriotti^bP.A. | ||
| 900 | |a ^aAnchorena^bJ. | ||
| 900 | |a ^aRauber^bR. B. | ||
| 900 | |a ^aCollantes^bM. B. | ||
| 900 | |a ^aCipriotti^bP. A. | ||
| 900 | |a ^aAnchorena^bJ. | ||
| 900 | |a ^aRauber, R.B.^tLaboratorio de Ecología de Pastizales, Museo Argentino de Ciencias Naturales, Buenos Aires, Argentina | ||
| 900 | |a ^aRauber, R.B.^tInstituto Nacional de Tecnología Agropecuaria (INTA), Villa Mercedes, San Luis, Argentina | ||
| 900 | |a ^aCollantes, M.B.^tLaboratorio de Ecología de Pastizales, Museo Argentino de Ciencias Naturales, Buenos Aires, Argentina | ||
| 900 | |a ^aCipriotti, P.A.^tLaboratorio de Ecología de Pastizales, Museo Argentino de Ciencias Naturales, Buenos Aires, Argentina | ||
| 900 | |a ^aCipriotti, P.A.^tDpto. de Métodos Cuantitativos y Sistemas de Información, IFEVA, Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina | ||
| 900 | |a ^aAnchorena, J.^tLaboratorio de Ecología de Pastizales, Museo Argentino de Ciencias Naturales, Buenos Aires, Argentina | ||
| 900 | |a ^tAustral Ecology^cAustral Ecol. | ||
| 900 | |a en | ||
| 900 | |a 436 | ||
| 900 | |a ^i | ||
| 900 | |a Vol. 38, no. 4 | ||
| 900 | |a 442 | ||
| 900 | |a BIOLOGICAL INVASION | ||
| 900 | |a FUNCTIONAL DIVERSITY | ||
| 900 | |a GROWTH FORM | ||
| 900 | |a HIERACIUM PILOSELLA L | ||
| 900 | |a SPECIES DIVERSITY | ||
| 900 | |a ABUNDANCE | ||
| 900 | |a DICOTYLEDON | ||
| 900 | |a FUNCTIONAL GROUP | ||
| 900 | |a GROWTH FORM | ||
| 900 | |a INVASIBILITY | ||
| 900 | |a NATIVE SPECIES | ||
| 900 | |a PLANT COMMUNITY | ||
| 900 | |a SPECIES RICHNESS | ||
| 900 | |a STEPPE | ||
| 900 | |a ARGENTINA | ||
| 900 | |a PATAGONIA | ||
| 900 | |a TIERRA DEL FUEGO [[PRV] ARGENTINA] | ||
| 900 | |a HIERACIUM PILOSELLA | ||
| 900 | |a The biotic resistance theory relates invader success to species richness, and predicts that, as species richness increases, invasibility decreases. The relationship between invader success and richness, however, seems to be positive at large scales of analysis, determined by abiotic constraints, and it is to be expected that it is negative at small scales, because of biotic interactions. Moreover, the negative relationship at small scales would be stronger within species of the same functional group, because of having similar resource exploitation mechanisms. We studied the relationship between the cover of a worldwide invader of grasslands, Hieracium pilosella L., and species richness, species diversity and the cover of different growth forms at two different levels of analysis in 128 sites during the initial invasion process in the Fuegian steppe, Southern Patagonia, Argentina. At regional level, the invader was positively correlated to total [r=0.28, P=0.003], exotic [r=0.273, P=0.004], and native species richness [r=0.210, P=0.026], and to species diversity [r=0.193, P=0.041]. At community level, we found only a weak negative correlation between H. pilosella and total richness [r=-0.426, P=0.079] and diversity [r=-0.658, P=0.063]. The relationship between the invader and other species of the same growth form was positive both at regional [r=0.484, P less than 0.001] and community [r=0.593, P=0.012] levels. Consequently, in the period of establishment and initial expansion of this exotic species, our results support the idea that invader success is related to abiotic factors at large scales of analysis. Also, we observed a possible sign of biotic constraint at community level, although this was not related to the abundance of species of the same growth form. | ||
| 900 | |a 38 | ||
| 900 | |a 4 | ||
| 900 | |a 2013 | ||
| 900 | |a ^cH | ||
| 900 | |a AAG | ||
| 900 | |a AGROVOC | ||
| 900 | |a 2013rauber | ||
| 900 | |a AAG | ||
| 900 | |a http://ri.agro.uba.ar/files/intranet/articulo/2013rauber.pdf | ||
| 900 | |a 2013rauber.pdf | ||
| 900 | |a http://www.wiley.com/ | ||
| 900 | |a http://www.scopus.com/inward/record.url?eid=2-s2.0-84877928045&partnerID=40&md5=74c5f6855db93362b8dbfe0e79993e23 | ||
| 900 | |a ^a^b^c^d^e^f^g^h^i | ||
| 900 | |a OS | ||
| 942 | 0 | 0 | |c ARTICULO |2 udc |
| 942 | 0 | 0 | |c ENLINEA |2 udc |