Vegetation height of patch more important for phytodiversity than that of paddock

Abstract The development of phytodiversity was analysed on a paddock (1 ha) as well as on a patch scale (1 m 2 ) over nine years on paddocks managed for compressed sward heights (CSH) of 6 (moderate stocking, MC), 12 (lenient stocking, LC) or 18 cm (very lenient stocking, VLC) on moderately species-rich mesotrophic grassland. Neither grazing treatments nor nutrient availability caused differences in diversity measures in this study. The local quadrat vegetation height had a significant influence on average species number and Shannon diversity, independent of the grazing treatment. Patches with short vegetation allowed seed germination and reduced dominant species, making a diversification of the vegetation measurable at an earlier stage than on the paddock scale.

[1]  R. H. Hart,et al.  Plant biodiversity on shortgrass steppe after 55 years of zero, light, moderate, or heavy cattle grazing , 2001, Plant Ecology.

[2]  P. Yoshioka,et al.  Misidentification of the Bray-Curtis similarity index , 2008 .

[3]  J. Isselstein,et al.  Seedling recruitment on agriculturally improved mesic grassland: the influence of disturbance and management schemes , 2004 .

[4]  M. E. Castle.  A simple disc instrument for estimating herbage yield , 1976 .

[5]  G. R. Bolton,et al.  Early changes in species composition of upland sown grassland under extensive grazing management , 2002 .

[6]  A. Magurran,et al.  Measuring Biological Diversity , 2004 .

[7]  B. Dumont,et al.  How does grazing intensity influence the diversity of plants and insects in a species‐rich upland grassland on basalt soils? , 2009 .

[8]  L. Marini,et al.  Patterns of plant species richness in Alpine hay meadows: Local vs. landscape controls , 2008 .

[9]  J. Bakker,et al.  Relationship between soil chemical factors and grassland diversity , 1998, Plant and Soil.

[10]  V. Pavlů,et al.  Changes in plant densities in a mesic species-rich grassland after imposing different grazing management treatments , 2006 .

[11]  H. Olff,et al.  Effects of herbivores on grassland plant diversity. , 1998, Trends in ecology & evolution.

[12]  M. Scimone,et al.  Effects of livestock breed and grazing intensity on grazing systems: 3. Effects on diversity of vegetation , 2007 .

[13]  B. Cerabolini,et al.  Disturbance is the principal α‐scale filter determining niche differentiation, coexistence and biodiversity in an alpine community , 2007 .

[14]  D. Bonte,et al.  Grazing as a management tool in dune grasslands: Evidence of soil and scale dependence of the effect of large herbivores on plant diversity , 2008 .

[15]  A. J. Belsky,et al.  Effects of grazing, competition, disturbance and fire on species composition and diversity in grassland communities , 1992 .

[16]  J. Isselstein,et al.  Effects of livestock breed and grazing intensity on biodiversity and production in grazing systems. 1. Nutritive value of herbage and livestock performance , 2007 .

[17]  Thomas J. Stohlgren,et al.  Measuring Plant Diversity: Lessons from the Field , 2006 .

[18]  J. Pykälä,et al.  Plant species responses to cattle grazing in mesic semi-natural grassland , 2005 .

[19]  N. Wrage,et al.  Herbage growth rates on heterogeneous swards as influenced by sward‐height classes , 2009 .

[20]  Jan P. Bakker,et al.  THE DEVELOPMENT OF VEGETATION PATTERNS BY CATTLE GRAZING AT LOW STOCKING DENSITY IN THE NETHERLANDS , 1990 .

[21]  R. Pakeman,et al.  Long-term impacts of extensive grazing and abandonment on the species composition, richness, diversity and productivity of agricultural grassland. , 2009 .

[22]  A. J. Rook,et al.  Matching type of livestock to desired biodiversity outcomes in pastures – a review , 2004 .

[23]  J. Isselstein,et al.  Studying spatial and temporal dynamics of sward structure at low stocking densities: the use of an extended rising‐plate‐meter method , 2003 .

[24]  A. J. Rook,et al.  Grazing and pasture management for biodiversity benefit , 2003 .

[25]  T. Herben,et al.  Vegetation changes following sheep grazing in abandoned mountain meadows , 2001 .

[26]  D. Briske,et al.  Herbaceous vegetation change in variable rangeland environments: The relative contribution of grazing and climatic variability , 2001 .

[27]  Alain Peeters,et al.  An international terminology for grazing lands and grazing animals , 2011 .