Navegar

Colección

Datos Estadísticas

Artículo

Estamos trabajando para incorporar este artículo al repositorio
Consulte el artículo en la página del editor
Consulte la política de Acceso Abierto del editor

Abstract:

Although Magellanic meadows have been subject to ungulate herbivory for a long time; they have suffered severe grazing by domestic sheep since the end of the 19th century. We hypothesized that, if protected from grazing, the present dominant dwarf forms would be replaced by taller competitive forms, mainly grasses. We then monitored floristic composition along a gradient of soils over periods of 5 to 16 yr on seven meadow sites under grazing and, in five, also on exclosures. Initial and final floristic samples were classified with TWINSPAN and ordinated with Detrended Correspondence Analysis (DCA). We also tracked cover changes in life-forms (grasses, dwarf sedges/rushes, rhizomatous helophytes, and cushion shrubs). At the end of the study, we assessed floristic similarity between paired grazed and exclosed treatments, and compared their life-form cover, diversity, biomass, and soil compaction with Student's t and Mann-Whitney's tests. Temporal displacements of composition in ordination space showed the effect of a long drought (DCA axis 1) and of grazing removal (DCA axis 2). Grazing exclusion had a much greater impact in wet meadows-where grasses became the dominant life-form-than in dry meadows. The effect of drought was shown in 1) the expansion of the cushion shrub Azorella trifurcata (Gaertn.) Pers. in both grazed and nongrazed treatments of the drier wetlands; 2) the decrease in Caltha sagittata Cav. in riparian meadows, and its encroachment under grazing in the wettest spring meadow; and 3) the large increase in Poa pratensis L. in exclosed wet meadows. Despite this strong response to environmental conditions, overall results supported the idea that these wetlands are equilibrium systems. Although the drier meadows have crossed an irreversible threshold, the Caltha-encroached wet meadows returned to a grass state in about 4 yr when protected from grazing. Their resilience suggests that they could be partly restored with rest-rotation grazing. © 2013 The Society for Range Management.

Registro:

Documento: Artículo
Título:Grazing and grazing exclusion along a resource gradient in magellanic meadows of tierra del fuego
Autor:Collantes, M.B.; Escartín, C.; Braun, K.; Cingolani, A.; Anchorena, J.
Filiación:Consejo Nacional de Investigaciones Científicas y Técnicas, Dept of Botany, Museo Argentino de Ciencias Naturales, Ángel Gallardo 470, Ciudad Autónoma de Buenos Aires, Argentina
Inst. Multidisciplinario de Biol. Veg., Consejo Nacional de Investigaciones Cientificas y Tecnicas, Facultad de Ciencias Exactas Físicas y Naturales, Universidad Nacional de Córdoba, Vélez Sársfield 299, 5000, Córdoba, Argentina
Idioma: Inglés
Palabras clave:Equilibrium; Plant Community Dynamics; Plant-Animal Interactions; Riparian Ecology; State-And-Transition; community composition; correspondence analysis; dominance; environmental response; floristics; grass; grazing; herbivory; meadow; restoration ecology; ungulate; wetland
Año:2013
Volumen:66
Número:6
Página de inicio:688
Página de fin:699
DOI: http://dx.doi.org/10.2111/REM-D-11-00201.1
Título revista:Rangeland Ecology and Management
Título revista abreviado:Rangeland Ecol. Manage.
ISSN:15507424
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507424_v66_n6_p688_Collantes

Referencias:

  • Allen, D.R., Marlow, C.B., Shoot population dynamics of beaked sedge following cattle grazing (1994) Journal of Range Management, 47, pp. 64-69
  • Allen-Diaz, B., Jackson, R.D., Grazing effects on (2000) Journal of Range Management, 53, pp. 215-220. , spring ecosystem vegetation of California's hardwood rangelands
  • Anchorena, J., Cingolani, A.M., Livraghi, E., Collantes, M.B., Stoffella, S., (2001) Manejo Del Pastoreo de Ovejas en Tierra Del Fuego, p. 47. , Buenos Aires Argentina: Edipubli Press
  • Armour, C., Duff, D., Elmore, W., The effects of livestock grazing on western riparian and stream ecosystems (1994) Fisheries, 19, pp. 9-12
  • Bakker, J.P., Grootjans, A.P., Potential for vegetation regeneration in the middle course of the Drentsche A brook valley (The Netherlands). Verhandlungen Gesellschaft fur (1991) Okologie, 20, pp. 249-263
  • Bakker, J.P., Olff, H., Willens, J.H., Zobel, M., Why do we need permanent plots in the study of long-term vegetation dynamics (1996) Journal of Vegetation Science, 7, pp. 147-156
  • Beck, J.L., Peek, J.M., Herbage productivity and ungulate use of northeastern Nevada mountain meadows (2004) Journal of Range Management, 57, pp. 376-383
  • Belsky, A.J., The effects of grazing: Confounding of ecosystem, community and organism scales (1987) American Naturalist, 129, pp. 777-783
  • Belsky, A.J., Matzke, A., Uselman, S., Survey of livestock influences on stream and riparian ecosystems in the western United States (1999) Journal of Soil and Water Conservation, 54, pp. 419-431
  • Bork, E.W., Burkinshaw, A.M., Cool-season floodplain meadow responses to shrub encroachment in Alberta (2009) Rangeland Ecology & Management, 62, pp. 44-52
  • Bradford, J.M., Penetrability (1986) Methods of Soil Analysis. Part 1. Physical and Mineralogical Methods, pp. 463-478. , A. Klute [ED.] Madison, Wisconsin USA: American Society of Agronomy, Inc. and Soil Society of America, Inc
  • Briske, D.D., Fuhlendorf, S.D., Smeins, F.E., State-and-transition models, thresholds, and rangelands health: A synthesis of ecological concepts and perspectives (2005) Rangeland Ecology & Management, 58, pp. 1-10
  • Briske, D.D., Fuhlendorf, S.D., Smeins, F.E., A unified framework for assessment and application of ecological thresholds (2006) Journal of Range Management, 59, pp. 225-236
  • Bryant, H.T., Blaser, L.E., Peterson, J.R., Effects of trampling by cattle on bluegrass yield and soil compaction of a Meadowville loam (1972) Agronomy Journal, 64, pp. 331-334
  • Buttolph, L.P., Coppock, D.L., Influence of deferred grazing on vegetation dynamics and livestock productivity in an Andean pastoral system (2004) Journal of Applied Ecology, 41, pp. 664-674
  • Chambers, J.C., Linnerooth, A.R., Restoring riparian meadows currently dominated by Artemisia using alternative state concepts-The establishment component (2001) Applied Vegetation Science, 4, pp. 157-166
  • Cingolani, A.M., Noy-Meir, I., Diaz, S., Grazing effects on rangeland diversity: A synthesis of contemporary models (2005) Ecological Applications, 15, pp. 757-773
  • Clary, W.P., Vegetation and soil responses to grazing simulation on riparian meadows (1995) Journal of Range Management, 48, pp. 18-25
  • Clary, W.P., Booth, G.D., Early season utilization of mountain meadow riparian pastures (1993) Journal of Range Management, 46, pp. 493-497
  • Collantes, M.B., Anchorena, J., Cingolani, A.M., The steppes of Tierra del Fuego: floristic and growth form patterns controlled by soil fertility and moisture (1999) Plant Ecology, 140, pp. 61-75
  • Collantes, M.B., Braun, K., Escart'In, C., Cingolani, A.M., Anchorena, J., (2005) Patrones de Cambio de la Vegetacíon de la Estepa Fueguina en Relacíon Al Pastoreo, pp. 235-251. , M. Oesterheld, M. Aguiar, C. Ghersa, and J. Paruelo [EDS.]. La heterogeneidad de la vegetacíon de los agroecosistemas. Buenos Aires, Argentina: Facultad de Agronoḿa Press
  • Collantes, M.B., Anchorena, J., Stoffella, S., Escart'In, C., Rauber, R., Wetlands of the Magellanic Steppe (Tierra del Fuego, Argentina) (2009) Folia Geobotanica, 44, pp. 227-245
  • Duśen, P., Die Pflanzenvereine der Magellanslander nebst einem Beitrage zur Okologie der Magellanischen Vegetation (1905) Svenska Expeditionen. Magellanslanderna, 3 (10), pp. 351-521
  • Friedel, M.H., Range condition assessment and the concept of thresholds: A viewpoint (1991) Journal of Range Management, 44, pp. 422-426
  • Green, D.M., Kauffman, J.B., Succession and livestock grazing in a northeastern Oregon riparian ecosystem (1995) Journal of Range Management, 48, pp. 307-313
  • Grootjans, A.P., Fresco, L.F.M., De Leeuw, C.C., Schipper, P.C., Degeneration of species-rich Calthion palustris hay meadows; Some considerations on the community concept (1996) Journal of Vegetation Science, 7, pp. 185-194
  • Hobbs, R.S., Huenneke, L.F., Disturbance, diversity and invasion: Implications for conservation (1992) Conservation Biology, 6, pp. 324-337
  • Humphrey, J.W., Patterson, G.S., Effects of late summer cattle grazing on the diversity of riparian pasture vegetation in an upland conifer forest (2000) Journal of Applied Ecology, 37, pp. 986-996
  • (2008) InfoStat Versíon 2008, , INFOSTAT Editorial Brujas, Argentina: Grupo InfoStat, FCA, Universidad Nacional de Ćordoba
  • Iturraspe, R.J., Urciuolo, A.B., Ciclos deficitarios en el ŕegimen de sistemas lagunares de la estepa fueguina (2002) Comit'e Permanente de Los Congresos Nacionales Del Agua [ED], pp. 99-104. , XIX Congreso Nacional del Agua; Agosto 2002; Villa Carlos Paz, Argentina
  • Jackson, R.D., Allen-Diaz, B., Spring-fed wetland and riparian plant communities respond differently to altered grazing intensity (2006) Journal of Applied Ecology, 43, pp. 485-498
  • Jensen, K., Schrautzer, J., Consequences of abandonment for a regional fen flora and mechanisms of successional change (1999) Applied Vegetation Science, 2, pp. 79-88
  • Lauenroth, W.K., Guanacos, spiny shrubs and the evolutionary history of grazing in the Patagonia steppe (1998) Ecoloǵa Austral, 8, pp. 211-215
  • Opez, D.R., Cavallero, L., Brizuela, M.A., Aguiar, M.R., Ecosystemic structural-functional approach of the state and transition model (2011) Applied Vegetation Science, 14, pp. 6-16
  • Lucas, R.W., Baker, T.T., Wood, M.K., Allison, C.D., Vanleeuwen, D.M., Riparian vegetation response to different intensities and seasons of grazing (2004) Journal of Range Management, 57, pp. 466-474
  • Martin, D.W., Chambers, J.C., Restoring degraded riparian meadows: Biomass and species responses (2001) Journal of Range Management, 54, pp. 284-291
  • Matejková, I., Van Diggelen, R., Prach, K., An attempt to restore a central European species-rich mountain grassland through grazing (2003) Applied Vegetation Science, 6, pp. 161-168
  • McCune, B., Grace, J.B., (2002) Analysis of Ecological Communities, p. 300. , Gleneden Beach, OR, USA: MjM Software Design
  • Middleton, B., Nonequilibrium dynamics of sedge meadows grazed by cattle in southern Wisconsin (2002) Plant Ecology, 161, pp. 89-110
  • Middleton, B.A., Holsten, B., Van Diggelen, R., Biodiversity management of fens and fen meadows by grazing, cutting and burning (2006) Applied Vegetation Science, 9, pp. 307-316
  • Milchunas, D.G., Sala, O.E., Lauenroth, W.K., A generalized model of the effects of grazing by large herbivores on grassland community structure (1988) American Naturalist, 132, pp. 87-106
  • Mueller-Dombois, D., Ellenberg, H., (1974) Aims and Methods of Vegetation Ecology, p. 547. , New York, NY, USA: J Wiley & Sons Press
  • Naeem, S., Species redundancy and ecosystem reliability (1998) Conservation Biology, 12, pp. 39-45
  • Oesterheld, M., McNaughton, S.J., Effect of stress and time of recovery on the amount of compensatory growth after grazing (1991) Oecologia, 85, pp. 305-313
  • Raedeke, K.J., Food habits of the guanaco (Lama guanicoe) of Tierra del Fuego, Chile (1980) Turrialba, 30, pp. 177-181
  • Schulz, T.T., Leininger, W.C., Differences in riparian vegetation structure between grazed areas and exclosures (1990) Journal of Range Management, 43, pp. 295-299
  • Smith, R.S., Rushton, S.P., The effects of grazing management on the vegetation of mesotrophic (meadow) grassland in Northern England (1994) Journal of Applied Ecology, 31, pp. 13-24
  • Stammel, B., Kiehl, K., Pfadenhauer, J., Alternative management on fens: Response of vegetation to grazing and mowing (2003) Applied Vegetation Science, 6, pp. 245-254
  • Stringham, T.K., Krueger, W.C., Shaver, P.L., State and transition modeling: An ecological approach (2003) Journal of Range Management, 56, pp. 106-113
  • Stringham, T.K., Krueger, W.C., Thomas, D.R., Application of nonequilibrium ecology to rangeland riparian zones (2001) Journal of Range Management, 54, pp. 210-217
  • Weixelman, D.A., Zamudio, D.C., Tausch, R.J., Classifying ecological types and evaluating site degradation (1997) Journal of Range Management, 50, pp. 315-321
  • Wheeler, M.A., Trlica, M.J., Frasier, G.W., Reeder, J.D., Seasonal grazing affects soil physical properties of a montane riparian community (2002) Journal of Range Management, 55, pp. 49-56
  • Wright, J.M., Chambers, J.C., Restoring riparian meadows currently dominated by Artemisia using alternative state concepts-above-ground vegetation response (2002) Applied Vegetation Science, 5, pp. 237-246

Citas:

---------- APA ----------
Collantes, M.B., Escartín, C., Braun, K., Cingolani, A. & Anchorena, J. (2013) . Grazing and grazing exclusion along a resource gradient in magellanic meadows of tierra del fuego. Rangeland Ecology and Management, 66(6), 688-699.
http://dx.doi.org/10.2111/REM-D-11-00201.1
---------- CHICAGO ----------
Collantes, M.B., Escartín, C., Braun, K., Cingolani, A., Anchorena, J. "Grazing and grazing exclusion along a resource gradient in magellanic meadows of tierra del fuego" . Rangeland Ecology and Management 66, no. 6 (2013) : 688-699.
http://dx.doi.org/10.2111/REM-D-11-00201.1
---------- MLA ----------
Collantes, M.B., Escartín, C., Braun, K., Cingolani, A., Anchorena, J. "Grazing and grazing exclusion along a resource gradient in magellanic meadows of tierra del fuego" . Rangeland Ecology and Management, vol. 66, no. 6, 2013, pp. 688-699.
http://dx.doi.org/10.2111/REM-D-11-00201.1
---------- VANCOUVER ----------
Collantes, M.B., Escartín, C., Braun, K., Cingolani, A., Anchorena, J. Grazing and grazing exclusion along a resource gradient in magellanic meadows of tierra del fuego. Rangeland Ecol. Manage. 2013;66(6):688-699.
http://dx.doi.org/10.2111/REM-D-11-00201.1