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Hodgson RJ, Liddicoat C, Cando‐Dumancela C, Blyth C, Watson CD, Breed MF. Local and non‐local soil microbiota impede germination of the endangered
Acacia whibleyana. AUSTRAL ECOL 2023. [DOI: 10.1111/aec.13275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Riley J. Hodgson
- College of Science and Engineering Flinders University Bedford Park South Australia Australia
| | - Craig Liddicoat
- College of Science and Engineering Flinders University Bedford Park South Australia Australia
- School of Public Health University of Adelaide Adelaide South Australia Australia
| | | | - Colette Blyth
- School of Biological Sciences University of Adelaide Adelaide South Australia Australia
| | - Carl D. Watson
- College of Science and Engineering Flinders University Bedford Park South Australia Australia
| | - Martin F. Breed
- College of Science and Engineering Flinders University Bedford Park South Australia Australia
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Environmental factors influencing the establishment, height and fecundity of the annual grass Sorghum intrans in an Australian tropical savanna. JOURNAL OF TROPICAL ECOLOGY 2010. [DOI: 10.1017/s0266467409990629] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Abstract:Environmental factors influencing grass establishment and performance in tropical savannas are poorly understood, particularly in relation to disturbance. We describe a seed sowing experiment that examined the effects of fire regime, canopy cover and litter cover on the emergence, establishment, height and fecundity (seed production) of the regionally dominant annual grass Sorghum intrans in northern Australia. Establishment was significantly lower under the woody canopy compared with canopy gaps, and where seeds were sown on a layer of litter compared with bare soil. However, variation in fire regime had no significant effect on establishment or seed production. Additionally, a shade-house experiment was conducted to test the effects of litter on seedling emergence of S. intrans and six other grass species representative of the local flora (Pseudopogonatherum contortum, Sorghum plumosum, Chrysopogon latifolius, Eriachne triseta, Heteropogon triticeus and Alloteropsis semialata). All species showed reduced emergence when sown either above or below litter, compared with bare soil. Our results demonstrate the importance of the overstorey as a determinant of S. intrans abundance and savanna grass composition more generally, through its effect on establishment. The aversion of savanna grasses to litter (and S. intrans to canopy shading) supports the notion of savanna species being highly adapted to disturbance.
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Scott K, Setterfield S, Douglas M, Andersen A. Soil seed banks confer resilience to savanna grass-layer plants during seasonal disturbance. ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY 2010. [DOI: 10.1016/j.actao.2009.12.007] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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ANDREW MARTINH, MOTT JOHNJ. Annuals with transient seed banks: the population biology of indigenous Sorghum species of tropical north-west Australia. ACTA ACUST UNITED AC 2006. [DOI: 10.1111/j.1442-9993.1983.tb01324.x] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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McKEON GM, ROSE CW, KALMA JD, TORSSELL BWR. Pasture seed dynamics in a dry monsoonal climate. I Germination and seedbed environment of Stylosanthes humilis and Digitaria ciliaris. AUSTRAL ECOL 1985. [DOI: 10.1111/j.1442-9993.1985.tb00875.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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