Fire and Grazing Change Herbaceous Species Composition and Reduce Beta Diversity in the Kalahari Sand System
Abstract After rainfall and soils, fire and herbivory are two of the main determinants of savanna ecosystems. Although the interactive effects of fire and herbivores on soil and vegetation are widely acknowledged few studies have addressed these two factors in concert, and none of the studies has fo...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Masunga, Gaseitsiwe S. [verfasserIn] Moe, Stein R. [verfasserIn] Pelekekae, Baipidi [verfasserIn] |
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| Format: |
E-Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2012 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Ecosystems - Springer-Verlag, 2000, 16(2012), 2 vom: 09. Nov., Seite 252-268 |
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| Übergeordnetes Werk: |
volume:16 ; year:2012 ; number:2 ; day:09 ; month:11 ; pages:252-268 |
| Links: |
|---|
| DOI / URN: |
10.1007/s10021-012-9611-6 |
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SPR008081387 |
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| 520 | |a Abstract After rainfall and soils, fire and herbivory are two of the main determinants of savanna ecosystems. Although the interactive effects of fire and herbivores on soil and vegetation are widely acknowledged few studies have addressed these two factors in concert, and none of the studies has focused on the Kalahari sand system. We experimentally studied how annual late dry season fires and grazing affect herbaceous plant species composition, above- and belowground biomass, and soil and grass nutrient concentrations in the nutrient-poor semi-arid Kalahari system in northern Botswana. Four treatments (fire, grazing, fire + grazing, and no-fire–no-grazing) were applied for two consecutive years in the late dry season. Plant species composition was affected by treatment and year. The no-fire–no-grazing treatment was distinctly different from all the other treatments in terms of species composition. Beta diversity was lower on the fire treatment and grazing treatment, but not where fire and grazing were combined. Fire and grazing alone or in combination did not have a substantial effect on biomass, soil and plant nutrients or plant species alpha diversity. Plant nitrogen was the only element that differed between treatments, with high concentrations on all the grazed treatments in the first year and low levels on the fire-alone treatment during the second year. The results show that fire and grazing mainly affect species composition and large-scale biodiversity patterns as indicated by the no-fire–no-grazing treatment being distinctly different from other treatments, suggesting the evolutionary adaptation of this dystrophic Kalahari sand system to herbivory and fire. | ||
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10.1007/s10021-012-9611-6 doi (DE-627)SPR008081387 (SPR)s10021-012-9611-6-e DE-627 ger DE-627 rakwb eng Masunga, Gaseitsiwe S. verfasserin aut Fire and Grazing Change Herbaceous Species Composition and Reduce Beta Diversity in the Kalahari Sand System 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract After rainfall and soils, fire and herbivory are two of the main determinants of savanna ecosystems. Although the interactive effects of fire and herbivores on soil and vegetation are widely acknowledged few studies have addressed these two factors in concert, and none of the studies has focused on the Kalahari sand system. We experimentally studied how annual late dry season fires and grazing affect herbaceous plant species composition, above- and belowground biomass, and soil and grass nutrient concentrations in the nutrient-poor semi-arid Kalahari system in northern Botswana. Four treatments (fire, grazing, fire + grazing, and no-fire–no-grazing) were applied for two consecutive years in the late dry season. Plant species composition was affected by treatment and year. The no-fire–no-grazing treatment was distinctly different from all the other treatments in terms of species composition. Beta diversity was lower on the fire treatment and grazing treatment, but not where fire and grazing were combined. Fire and grazing alone or in combination did not have a substantial effect on biomass, soil and plant nutrients or plant species alpha diversity. Plant nitrogen was the only element that differed between treatments, with high concentrations on all the grazed treatments in the first year and low levels on the fire-alone treatment during the second year. The results show that fire and grazing mainly affect species composition and large-scale biodiversity patterns as indicated by the no-fire–no-grazing treatment being distinctly different from other treatments, suggesting the evolutionary adaptation of this dystrophic Kalahari sand system to herbivory and fire. beta diversity (dpeaa)DE-He213 fire (dpeaa)DE-He213 herbivory (dpeaa)DE-He213 Kalahari (dpeaa)DE-He213 plant species composition (dpeaa)DE-He213 semi-arid savanna (dpeaa)DE-He213 soil nutrients (dpeaa)DE-He213 Moe, Stein R. verfasserin aut Pelekekae, Baipidi verfasserin aut Enthalten in Ecosystems Springer-Verlag, 2000 16(2012), 2 vom: 09. Nov., Seite 252-268 (DE-627)SPR008072272 nnns volume:16 year:2012 number:2 day:09 month:11 pages:252-268 https://dx.doi.org/10.1007/s10021-012-9611-6 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 16 2012 2 09 11 252-268 |
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10.1007/s10021-012-9611-6 doi (DE-627)SPR008081387 (SPR)s10021-012-9611-6-e DE-627 ger DE-627 rakwb eng Masunga, Gaseitsiwe S. verfasserin aut Fire and Grazing Change Herbaceous Species Composition and Reduce Beta Diversity in the Kalahari Sand System 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract After rainfall and soils, fire and herbivory are two of the main determinants of savanna ecosystems. Although the interactive effects of fire and herbivores on soil and vegetation are widely acknowledged few studies have addressed these two factors in concert, and none of the studies has focused on the Kalahari sand system. We experimentally studied how annual late dry season fires and grazing affect herbaceous plant species composition, above- and belowground biomass, and soil and grass nutrient concentrations in the nutrient-poor semi-arid Kalahari system in northern Botswana. Four treatments (fire, grazing, fire + grazing, and no-fire–no-grazing) were applied for two consecutive years in the late dry season. Plant species composition was affected by treatment and year. The no-fire–no-grazing treatment was distinctly different from all the other treatments in terms of species composition. Beta diversity was lower on the fire treatment and grazing treatment, but not where fire and grazing were combined. Fire and grazing alone or in combination did not have a substantial effect on biomass, soil and plant nutrients or plant species alpha diversity. Plant nitrogen was the only element that differed between treatments, with high concentrations on all the grazed treatments in the first year and low levels on the fire-alone treatment during the second year. The results show that fire and grazing mainly affect species composition and large-scale biodiversity patterns as indicated by the no-fire–no-grazing treatment being distinctly different from other treatments, suggesting the evolutionary adaptation of this dystrophic Kalahari sand system to herbivory and fire. beta diversity (dpeaa)DE-He213 fire (dpeaa)DE-He213 herbivory (dpeaa)DE-He213 Kalahari (dpeaa)DE-He213 plant species composition (dpeaa)DE-He213 semi-arid savanna (dpeaa)DE-He213 soil nutrients (dpeaa)DE-He213 Moe, Stein R. verfasserin aut Pelekekae, Baipidi verfasserin aut Enthalten in Ecosystems Springer-Verlag, 2000 16(2012), 2 vom: 09. Nov., Seite 252-268 (DE-627)SPR008072272 nnns volume:16 year:2012 number:2 day:09 month:11 pages:252-268 https://dx.doi.org/10.1007/s10021-012-9611-6 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 16 2012 2 09 11 252-268 |
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10.1007/s10021-012-9611-6 doi (DE-627)SPR008081387 (SPR)s10021-012-9611-6-e DE-627 ger DE-627 rakwb eng Masunga, Gaseitsiwe S. verfasserin aut Fire and Grazing Change Herbaceous Species Composition and Reduce Beta Diversity in the Kalahari Sand System 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract After rainfall and soils, fire and herbivory are two of the main determinants of savanna ecosystems. Although the interactive effects of fire and herbivores on soil and vegetation are widely acknowledged few studies have addressed these two factors in concert, and none of the studies has focused on the Kalahari sand system. We experimentally studied how annual late dry season fires and grazing affect herbaceous plant species composition, above- and belowground biomass, and soil and grass nutrient concentrations in the nutrient-poor semi-arid Kalahari system in northern Botswana. Four treatments (fire, grazing, fire + grazing, and no-fire–no-grazing) were applied for two consecutive years in the late dry season. Plant species composition was affected by treatment and year. The no-fire–no-grazing treatment was distinctly different from all the other treatments in terms of species composition. Beta diversity was lower on the fire treatment and grazing treatment, but not where fire and grazing were combined. Fire and grazing alone or in combination did not have a substantial effect on biomass, soil and plant nutrients or plant species alpha diversity. Plant nitrogen was the only element that differed between treatments, with high concentrations on all the grazed treatments in the first year and low levels on the fire-alone treatment during the second year. The results show that fire and grazing mainly affect species composition and large-scale biodiversity patterns as indicated by the no-fire–no-grazing treatment being distinctly different from other treatments, suggesting the evolutionary adaptation of this dystrophic Kalahari sand system to herbivory and fire. beta diversity (dpeaa)DE-He213 fire (dpeaa)DE-He213 herbivory (dpeaa)DE-He213 Kalahari (dpeaa)DE-He213 plant species composition (dpeaa)DE-He213 semi-arid savanna (dpeaa)DE-He213 soil nutrients (dpeaa)DE-He213 Moe, Stein R. verfasserin aut Pelekekae, Baipidi verfasserin aut Enthalten in Ecosystems Springer-Verlag, 2000 16(2012), 2 vom: 09. Nov., Seite 252-268 (DE-627)SPR008072272 nnns volume:16 year:2012 number:2 day:09 month:11 pages:252-268 https://dx.doi.org/10.1007/s10021-012-9611-6 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 16 2012 2 09 11 252-268 |
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10.1007/s10021-012-9611-6 doi (DE-627)SPR008081387 (SPR)s10021-012-9611-6-e DE-627 ger DE-627 rakwb eng Masunga, Gaseitsiwe S. verfasserin aut Fire and Grazing Change Herbaceous Species Composition and Reduce Beta Diversity in the Kalahari Sand System 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract After rainfall and soils, fire and herbivory are two of the main determinants of savanna ecosystems. Although the interactive effects of fire and herbivores on soil and vegetation are widely acknowledged few studies have addressed these two factors in concert, and none of the studies has focused on the Kalahari sand system. We experimentally studied how annual late dry season fires and grazing affect herbaceous plant species composition, above- and belowground biomass, and soil and grass nutrient concentrations in the nutrient-poor semi-arid Kalahari system in northern Botswana. Four treatments (fire, grazing, fire + grazing, and no-fire–no-grazing) were applied for two consecutive years in the late dry season. Plant species composition was affected by treatment and year. The no-fire–no-grazing treatment was distinctly different from all the other treatments in terms of species composition. Beta diversity was lower on the fire treatment and grazing treatment, but not where fire and grazing were combined. Fire and grazing alone or in combination did not have a substantial effect on biomass, soil and plant nutrients or plant species alpha diversity. Plant nitrogen was the only element that differed between treatments, with high concentrations on all the grazed treatments in the first year and low levels on the fire-alone treatment during the second year. The results show that fire and grazing mainly affect species composition and large-scale biodiversity patterns as indicated by the no-fire–no-grazing treatment being distinctly different from other treatments, suggesting the evolutionary adaptation of this dystrophic Kalahari sand system to herbivory and fire. beta diversity (dpeaa)DE-He213 fire (dpeaa)DE-He213 herbivory (dpeaa)DE-He213 Kalahari (dpeaa)DE-He213 plant species composition (dpeaa)DE-He213 semi-arid savanna (dpeaa)DE-He213 soil nutrients (dpeaa)DE-He213 Moe, Stein R. verfasserin aut Pelekekae, Baipidi verfasserin aut Enthalten in Ecosystems Springer-Verlag, 2000 16(2012), 2 vom: 09. Nov., Seite 252-268 (DE-627)SPR008072272 nnns volume:16 year:2012 number:2 day:09 month:11 pages:252-268 https://dx.doi.org/10.1007/s10021-012-9611-6 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 16 2012 2 09 11 252-268 |
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10.1007/s10021-012-9611-6 doi (DE-627)SPR008081387 (SPR)s10021-012-9611-6-e DE-627 ger DE-627 rakwb eng Masunga, Gaseitsiwe S. verfasserin aut Fire and Grazing Change Herbaceous Species Composition and Reduce Beta Diversity in the Kalahari Sand System 2012 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract After rainfall and soils, fire and herbivory are two of the main determinants of savanna ecosystems. Although the interactive effects of fire and herbivores on soil and vegetation are widely acknowledged few studies have addressed these two factors in concert, and none of the studies has focused on the Kalahari sand system. We experimentally studied how annual late dry season fires and grazing affect herbaceous plant species composition, above- and belowground biomass, and soil and grass nutrient concentrations in the nutrient-poor semi-arid Kalahari system in northern Botswana. Four treatments (fire, grazing, fire + grazing, and no-fire–no-grazing) were applied for two consecutive years in the late dry season. Plant species composition was affected by treatment and year. The no-fire–no-grazing treatment was distinctly different from all the other treatments in terms of species composition. Beta diversity was lower on the fire treatment and grazing treatment, but not where fire and grazing were combined. Fire and grazing alone or in combination did not have a substantial effect on biomass, soil and plant nutrients or plant species alpha diversity. Plant nitrogen was the only element that differed between treatments, with high concentrations on all the grazed treatments in the first year and low levels on the fire-alone treatment during the second year. The results show that fire and grazing mainly affect species composition and large-scale biodiversity patterns as indicated by the no-fire–no-grazing treatment being distinctly different from other treatments, suggesting the evolutionary adaptation of this dystrophic Kalahari sand system to herbivory and fire. beta diversity (dpeaa)DE-He213 fire (dpeaa)DE-He213 herbivory (dpeaa)DE-He213 Kalahari (dpeaa)DE-He213 plant species composition (dpeaa)DE-He213 semi-arid savanna (dpeaa)DE-He213 soil nutrients (dpeaa)DE-He213 Moe, Stein R. verfasserin aut Pelekekae, Baipidi verfasserin aut Enthalten in Ecosystems Springer-Verlag, 2000 16(2012), 2 vom: 09. Nov., Seite 252-268 (DE-627)SPR008072272 nnns volume:16 year:2012 number:2 day:09 month:11 pages:252-268 https://dx.doi.org/10.1007/s10021-012-9611-6 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 16 2012 2 09 11 252-268 |
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Masunga, Gaseitsiwe S. Moe, Stein R. Pelekekae, Baipidi |
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Elektronische Aufsätze |
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Masunga, Gaseitsiwe S. |
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10.1007/s10021-012-9611-6 |
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verfasserin |
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fire and grazing change herbaceous species composition and reduce beta diversity in the kalahari sand system |
| title_auth |
Fire and Grazing Change Herbaceous Species Composition and Reduce Beta Diversity in the Kalahari Sand System |
| abstract |
Abstract After rainfall and soils, fire and herbivory are two of the main determinants of savanna ecosystems. Although the interactive effects of fire and herbivores on soil and vegetation are widely acknowledged few studies have addressed these two factors in concert, and none of the studies has focused on the Kalahari sand system. We experimentally studied how annual late dry season fires and grazing affect herbaceous plant species composition, above- and belowground biomass, and soil and grass nutrient concentrations in the nutrient-poor semi-arid Kalahari system in northern Botswana. Four treatments (fire, grazing, fire + grazing, and no-fire–no-grazing) were applied for two consecutive years in the late dry season. Plant species composition was affected by treatment and year. The no-fire–no-grazing treatment was distinctly different from all the other treatments in terms of species composition. Beta diversity was lower on the fire treatment and grazing treatment, but not where fire and grazing were combined. Fire and grazing alone or in combination did not have a substantial effect on biomass, soil and plant nutrients or plant species alpha diversity. Plant nitrogen was the only element that differed between treatments, with high concentrations on all the grazed treatments in the first year and low levels on the fire-alone treatment during the second year. The results show that fire and grazing mainly affect species composition and large-scale biodiversity patterns as indicated by the no-fire–no-grazing treatment being distinctly different from other treatments, suggesting the evolutionary adaptation of this dystrophic Kalahari sand system to herbivory and fire. |
| abstractGer |
Abstract After rainfall and soils, fire and herbivory are two of the main determinants of savanna ecosystems. Although the interactive effects of fire and herbivores on soil and vegetation are widely acknowledged few studies have addressed these two factors in concert, and none of the studies has focused on the Kalahari sand system. We experimentally studied how annual late dry season fires and grazing affect herbaceous plant species composition, above- and belowground biomass, and soil and grass nutrient concentrations in the nutrient-poor semi-arid Kalahari system in northern Botswana. Four treatments (fire, grazing, fire + grazing, and no-fire–no-grazing) were applied for two consecutive years in the late dry season. Plant species composition was affected by treatment and year. The no-fire–no-grazing treatment was distinctly different from all the other treatments in terms of species composition. Beta diversity was lower on the fire treatment and grazing treatment, but not where fire and grazing were combined. Fire and grazing alone or in combination did not have a substantial effect on biomass, soil and plant nutrients or plant species alpha diversity. Plant nitrogen was the only element that differed between treatments, with high concentrations on all the grazed treatments in the first year and low levels on the fire-alone treatment during the second year. The results show that fire and grazing mainly affect species composition and large-scale biodiversity patterns as indicated by the no-fire–no-grazing treatment being distinctly different from other treatments, suggesting the evolutionary adaptation of this dystrophic Kalahari sand system to herbivory and fire. |
| abstract_unstemmed |
Abstract After rainfall and soils, fire and herbivory are two of the main determinants of savanna ecosystems. Although the interactive effects of fire and herbivores on soil and vegetation are widely acknowledged few studies have addressed these two factors in concert, and none of the studies has focused on the Kalahari sand system. We experimentally studied how annual late dry season fires and grazing affect herbaceous plant species composition, above- and belowground biomass, and soil and grass nutrient concentrations in the nutrient-poor semi-arid Kalahari system in northern Botswana. Four treatments (fire, grazing, fire + grazing, and no-fire–no-grazing) were applied for two consecutive years in the late dry season. Plant species composition was affected by treatment and year. The no-fire–no-grazing treatment was distinctly different from all the other treatments in terms of species composition. Beta diversity was lower on the fire treatment and grazing treatment, but not where fire and grazing were combined. Fire and grazing alone or in combination did not have a substantial effect on biomass, soil and plant nutrients or plant species alpha diversity. Plant nitrogen was the only element that differed between treatments, with high concentrations on all the grazed treatments in the first year and low levels on the fire-alone treatment during the second year. The results show that fire and grazing mainly affect species composition and large-scale biodiversity patterns as indicated by the no-fire–no-grazing treatment being distinctly different from other treatments, suggesting the evolutionary adaptation of this dystrophic Kalahari sand system to herbivory and fire. |
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Fire and Grazing Change Herbaceous Species Composition and Reduce Beta Diversity in the Kalahari Sand System |
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