Seed germination of tangled lignum (Duma florulenta) and nitre goosefoot (Chenopodium nitrariaceum) under experimental hydrological regimes
William Higgisson A B , Sue Briggs A and Fiona Dyer AA Institute for Applied Ecology, University of Canberra, University Drive, Bruce, Canberra, ACT 2617, Australia.
B Corresponding author. Email: will.higgisson@canberra.edu.au
Marine and Freshwater Research 69(8) 1268-1278 https://doi.org/10.1071/MF17357
Submitted: 28 November 2017 Accepted: 20 January 2018 Published: 11 April 2018
Abstract
The distribution of plants on flood plains depends on the hydrological regime on the flood plain and the hydrological requirements of the plants. The aims of the present study were to: (1) determine the relationships between germination of tangled lignum (Duma florulenta) and nitre goosefoot (Chenopodium nitrariaceum) and hydrological regime; (2) determine the buoyancy of the seeds of the two species, and hence the ability of the seeds to disperse by water; and (3) inform environmental flow requirements for the two species. Seeds of tangled lignum germinated best on soaked soil and on soil inundated for 20 days. Seeds of nitre goosefoot germinated best on soil inundated for 5 days and on soaked soil. The majority of tangled lignum seeds floated for at least 7 days. The majority of nitre goosefoot seeds sank within 7 days. The results of the present study are consistent with the observed distributions of the species on flood plains. Tangled lignum requires ~20 days of flooding and wet soils following flood recession for optimal germination. Nitre goosefoot requires a few days of flooding and wet soils following flood recession for optimal germination. The inundation requirements for germination of tangled lignum and nitre goosefoot should be considered in the management of environmental flows.
Additional keywords: dispersal, environmental flow, flood plain, inundation.
References
Amoros, C., and Bornette, G. (2002). Connectivity and biocomplexity in waterbodies of riverine floodplains. Freshwater Biology 47, 761–776.| Connectivity and biocomplexity in waterbodies of riverine floodplains.Crossref | GoogleScholarGoogle Scholar |
Armstrong, J., Kingsford, R., and Jenkins, K. (2009). The effect of regulating the Lachlan River on the Booligal Wetlands – the floodplain red gum swamps. Australian Wetlands and Rivers Research Group, University of New South Wales, Sydney, NSW, Australia.
Baskin, C. C., and Baskin, J. M. (1998). ‘Seeds: Ecology, Biogeography, and Evolution of Dormancy and Germination.’ (Academic Press: San Diego, CA, USA.)
Blom, C., Bögemann, G., Laan, P., Van der Sman, A., Van de Steeg, H., and Voesenek, L. (1990). Adaptations to flooding in plants from river areas. Aquatic Botany 38, 29–47.
| Adaptations to flooding in plants from river areas.Crossref | GoogleScholarGoogle Scholar |
Brandis, K., Nairn, L., Porter, J., and Kingsford, R. (2009). Preliminary assessment for the environmental water requirements of waterbird species in the Murray Darling Basin. University of New South Wales, Sydney, NSW, Australia.
Briggs, S., Seddon, J., and Thornton, S. (2000). Wildlife in dry lake and associated habitats in western New South Wales. The Rangeland Journal 22, 256–271.
| Wildlife in dry lake and associated habitats in western New South Wales.Crossref | GoogleScholarGoogle Scholar |
Brock, M. A. (2011). Persistence of seed banks in Australian temporary wetlands. Freshwater Biology 56, 1312–1327.
| Persistence of seed banks in Australian temporary wetlands.Crossref | GoogleScholarGoogle Scholar |
Brock, M., Nielsen, D. L., Shiel, R. J., Green, J. D., and Langley, J. D. (2003). Drought and aquatic community resilience: the role of eggs and seeds in sediments of temporary wetlands. Freshwater Biology 48, 1207–1218.
| Drought and aquatic community resilience: the role of eggs and seeds in sediments of temporary wetlands.Crossref | GoogleScholarGoogle Scholar |
Bunn, S. E., and Arthington, A. H. (2002). Basic principles and ecological consequences of altered flow regimes for aquatic biodiversity. Environmental Management 30, 492–507.
| Basic principles and ecological consequences of altered flow regimes for aquatic biodiversity.Crossref | GoogleScholarGoogle Scholar |
Bureau of Meteorology (2017). Climate statistics for Australian locations, summary statistics Hillston Airport. Available at http://www.bom.gov.au/jsp/ncc/cdio/weatherData/av?p_nccObsCode=136&p_display_type=dailyDataFile&p_startYear=2016&p_c=-1125960992&p_stn_num=075032 [Verified 25 July 2016].
Campbell, D. (1973). Living with lignum. Agricultural Gazette of New South Wales 84, 290–292.
Capon, S., James, C. S., Williams, L., and Quinn, G. (2009). Responses to flooding and drying in seedlings of a common Australian desert floodplain shrub: Muehlenbeckia florulenta Meisn. (tangled lignum). Environmental and Experimental Botany 66, 178–185.
| Responses to flooding and drying in seedlings of a common Australian desert floodplain shrub: Muehlenbeckia florulenta Meisn. (tangled lignum).Crossref | GoogleScholarGoogle Scholar |
Casanova, M. T. (2011). Using water plant functional groups to investigate environmental water requirements. Freshwater Biology 56, 2637–2652.
| Using water plant functional groups to investigate environmental water requirements.Crossref | GoogleScholarGoogle Scholar |
Casanova, M. T. (2015). Review of water requirements for key floodplain vegetation for the Northern Basin: literature review and expert knowledge assessment. Report to the Murray–Darling Basin Authority, Charophyte Services, Lake Bolac, Vic., Australia.
Chong, C., and Walker, K. F. (2005). Does lignum rely on a soil seed bank? Germination and reproductive phenology of Muehlenbeckia florulenta (Polygonaceae). Australian Journal of Botany 53, 407–415.
| Does lignum rely on a soil seed bank? Germination and reproductive phenology of Muehlenbeckia florulenta (Polygonaceae).Crossref | GoogleScholarGoogle Scholar |
Colloff, M. J., and Baldwin, D. S. (2010). Resilience of floodplain ecosystems in a semi-arid environment. The Rangeland Journal 32, 305–314.
Conover, W. J., and Iman, R. L. (1981). Rank transformations as a bridge between parametric and nonparametric statistics. The American Statistician 35, 124–129.
Craig, A., Walker, K., and Boulton, A. (1991). Effects of edaphic factors and flood frequency on the abundance of lignum (Muehlenbeckia florulenta Meissner) (Polygonaceae) on the River Murray floodplain, South Australia. Australian Journal of Botany 39, 431–443.
| Effects of edaphic factors and flood frequency on the abundance of lignum (Muehlenbeckia florulenta Meissner) (Polygonaceae) on the River Murray floodplain, South Australia.Crossref | GoogleScholarGoogle Scholar |
Cunningham, G., Mulham, W., Milthorpe, P., and Leigh, J. (1981). ‘Plants of Western New South Wales.’ (CSIRO Publishing: Melbourne, Vic., Australia.)
Driver, P., Lloyd-Jones, P., and Unthank, S. (2000). Responses of Lachlan wetlands and distributaries to 1999 environmental flows. Paper presented to the Lachlan River Management Committee, Forbes, NSW. Available at https://www.researchgate.net/publication/236247528_Responses_of_Lachlan_wetlands_and_distributaries_to_1999_environmental_flows_Paper_presented_to_the_Lachlan_River_Management_Committee_Forbes_NSW [Verified 16 February 2018].
Driver, P., Chowdhury, S., Wettin, P., and Jones, H. (2004a). Models to predict the effects of environmental flow releases on wetland inundation and the success of colonial bird breeding in the Lachlan River, NSW. In ‘Proceedings of the 4th Annual Stream Management Conference: Linking Rivers to Landscapes’, 19–22 October 2004, Launceston, Tas., Australia. (Eds I. D. Rutherfurd, I. Wiszniewski, M. J. Askey-Doran, and R. Glazik.) pp. 192–198. (Tasmanian Department of Primary Industries, Water and Environment: Launceston, Tas., Australia.)
Driver, P. C. S., Hameed, T., Lloyd-Jones, P., Raisin, G., Ribbons, C., Singh, G., and Wettin, P. (2004b). Natural and modified flows of the Lachlan Valley wetlands. Resource Analysis Unit, NSW Department of Infrastructure, Planning and Natural Resources, Central West Region, Forbes, NSW, Australia.
Driver, P., Barbour, E., Lenehan, J., Kumar, S., Merritt, W., and Wise, N. (2013). Lachlan wetland flow–response status: field observations, university research update and ecological condition assessment from the 18–22 February 2013 field trip for the Lachlan Riverine Working Group. (Department of Industry and Investment NSW: Sydney, NSW, Australia.) Available at https://www.researchgate.net/publication/260294101_Lachlan_wetland_flow-response_status [Verified 16 February 2018].
Freestone, F., Brown, P., Campbell, C., Wood, D., Nielsen, D., and Henderson, M. (2017). Return of the lignum dead: resilience of an arid floodplain shrub to drought. Journal of Arid Environments 138, 9–17.
| Return of the lignum dead: resilience of an arid floodplain shrub to drought.Crossref | GoogleScholarGoogle Scholar |
George, A. K., Walker, K. F., and Lewis, M. M. (2005). Population status of eucalypt trees on the River Murray floodplain, South Australia. River Research and Applications 21, 271–282.
| Population status of eucalypt trees on the River Murray floodplain, South Australia.Crossref | GoogleScholarGoogle Scholar |
Hillman, M., and Brierley, G. (2002). Information needs for environmental-flow allocation: a case study from the Lachlan River, New South Wales, Australia. Annals of the Association of American Geographers 92, 617–630.
| Information needs for environmental-flow allocation: a case study from the Lachlan River, New South Wales, Australia.Crossref | GoogleScholarGoogle Scholar |
Holland, K., Turnadge, C., Nicol, J., Gehrig, S., and Strawbridge, A. (2013). Floodplain response and recovery: comparison between natural and artificial floods. Goyder Institute for Water Research Technical Report Series, 13/4, Adelaide, SA, Australia.
Howe, H. F., and Smallwood, J. (1982). Ecology of seed dispersal. Annual Review of Ecology and Systematics 13, 201–228.
| Ecology of seed dispersal.Crossref | GoogleScholarGoogle Scholar |
Jensen, A. E. (2008). The roles of seed banks and soil moisture in recruitment of semi-arid floodplain plants: the River Murray, Australia. Ph.D. Thesis, University of Adelaide, Adelaide, SA, Australia.
Jensen, A. E., Walker, K. F., and Paton, D. C. (2008). The role of seedbanks in restoration of floodplain woodlands. River Research and Applications 24, 632–649.
| The role of seedbanks in restoration of floodplain woodlands.Crossref | GoogleScholarGoogle Scholar |
Johansson, M. E., Nilsson, C., and Nilsson, E. (1996). Do rivers function as corridors for plant dispersal? Journal of Vegetation Science 7, 593–598.
| Do rivers function as corridors for plant dispersal?Crossref | GoogleScholarGoogle Scholar |
Junk, W. J., Bayley, P. B., and Sparks, R. E. (1989). The flood pulse concept in river–floodplain systems. Canadian Special Publication of Fisheries and Aquatic Sciences 106, 110–127.
Kelleway, J., Mazumder, D., Wilson, G. G., Saintilan, N., Knowles, L., Iles, J., and Kobayashi, T. (2010). Trophic structure of benthic resources and consumers varies across a regulated floodplain wetland. Marine and Freshwater Research 61, 430–440.
| Trophic structure of benthic resources and consumers varies across a regulated floodplain wetland.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3cXlt1SjsLg%3D&md5=1d647a8550103d37ebcbe68a59929deeCAS |
Kemp, J. (2004). Flood channel morphology of a quiet river, the Lachlan downstream from Cowra, southeastern Australia. Geomorphology 60, 171–190.
| Flood channel morphology of a quiet river, the Lachlan downstream from Cowra, southeastern Australia.Crossref | GoogleScholarGoogle Scholar |
Kingsford, R. T. (2000). Ecological impacts of dams, water diversions and river management on floodplain wetlands in Australia. Austral Ecology 25, 109–127.
| Ecological impacts of dams, water diversions and river management on floodplain wetlands in Australia.Crossref | GoogleScholarGoogle Scholar |
Kingsford, R., Brandis, K., Thomas, R., Crighton, P., Knowles, E., and Gale, E. (2004). Classifying landform at broad spatial scales: the distribution and conservation of wetlands in New South Wales, Australia. Marine and Freshwater Research 55, 17–31.
| Classifying landform at broad spatial scales: the distribution and conservation of wetlands in New South Wales, Australia.Crossref | GoogleScholarGoogle Scholar |
Lake, P. (2000). Disturbance, patchiness, and diversity in streams. Journal of the North American Benthological Society 19, 573–592.
| Disturbance, patchiness, and diversity in streams.Crossref | GoogleScholarGoogle Scholar |
Leblanc, M., Tweed, S., Van Dijk, A., and Timbal, B. (2012). A review of historic and future hydrological changes in the Murray–Darling Basin. Global and Planetary Change 80–81, 226–246.
| A review of historic and future hydrological changes in the Murray–Darling Basin.Crossref | GoogleScholarGoogle Scholar |
Lemly, A. D., Kingsford, R. T., and Thompson, J. R. (2000). Irrigated agriculture and wildlife conservation: conflict on a global scale. Environmental Management 25, 485–512.
| Irrigated agriculture and wildlife conservation: conflict on a global scale.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DC%2BC2sbhslehsQ%3D%3D&md5=5faadb7c0eb03978cfa2d80ddd05e364CAS |
Meredith, S., and Beesley, L. (2009). Watering floodplain wetlands in the Murray–Darling Basin to benefit native fish: a discussion with managers. (Department of Sustainability and Environment: Melbourne, Vic., Australia.) Available at https://www.researchgate.net/publication/268371202_Watering_Floodplain_Wetlands_in_the_Murray-Darling_Basin_to_Benefit_Native_Fish_A_discussion_with_managers [Verified 16 February 2018].
Murray–Darling Basin Authority (2011). The Living Murray story: one of Australia’s largest river restoration projects. MDBA Publication number 157/11, MDBA, Canberra, ACT, Australia.
Naiman, R. J., and Decamps, H. (1997). The ecology of interfaces: riparian zones. Annual Review of Ecology and Systematics 28, 621–658.
| The ecology of interfaces: riparian zones.Crossref | GoogleScholarGoogle Scholar |
Newall, P., Lloyd, L., Gell, P., and Walker, K. (2009). Riverland Ramsar site ecological character description. Report (Project number LE0739) prepared for the Department for Environment and Heritage, Lloyd Environmental Pty Ltd, Adelaide, SA, Australia.
Nicholls, N. (1991). The El Nino/southern oscillation and Australian vegetation. Vegetatio 91, 23–36.
| The El Nino/southern oscillation and Australian vegetation.Crossref | GoogleScholarGoogle Scholar |
Nicol, J. M., and Ganf, G. G. (2000). Water regimes, seedling recruitment and establishment in three wetland plant species. Marine and Freshwater Research 51, 305–309.
| Water regimes, seedling recruitment and establishment in three wetland plant species.Crossref | GoogleScholarGoogle Scholar |
Nicol, J. M., Ganf, G. G., and Pelton, G. A. (2003). Seed banks of a southern Australian wetland: the influence of water regime on the final floristic composition. Plant Ecology 168, 191–205.
| Seed banks of a southern Australian wetland: the influence of water regime on the final floristic composition.Crossref | GoogleScholarGoogle Scholar |
Nilsson, C., Ekblad, A., Gardfjell, M., and Carlberg, B. (1991a). Long-term effects of river regulation on river margin vegetation. Journal of Applied Ecology 28, 963–987.
| Long-term effects of river regulation on river margin vegetation.Crossref | GoogleScholarGoogle Scholar |
Nilsson, C., Gardfjell, M., and Grelsson, G. (1991b). Importance of hydrochory in structuring plant communities along rivers. Canadian Journal of Botany 69, 2631–2633.
| Importance of hydrochory in structuring plant communities along rivers.Crossref | GoogleScholarGoogle Scholar |
Page, K. J. (1994). Late Quaternary stratigraphy and chronology of the Riverine Plain, southeastern Australia. Ph.D. Thesis, University of Wollongong, Wollongong, NSW, Australia.
Pettit, N., and Froend, R. (2001). Availability of seed for recruitment of riparian vegetation: a comparison of a tropical and a temperate river ecosystem in Australia. Australian Journal of Botany 49, 515–528.
| Availability of seed for recruitment of riparian vegetation: a comparison of a tropical and a temperate river ecosystem in Australia.Crossref | GoogleScholarGoogle Scholar |
PlantNET (The NSW Plant Information Network System) (2017). Duma florulenta (Meisn.) T.M.Schust. In ‘New South Wales Flora Online’. (Royal Botanic Gardens and Domain Trust: Sydney, NSW, Australia.) Available at http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Duma~florulenta [Verified 14 March 2017].
Roberts, J., and Marston, F. (2011). ‘Water Regime for Wetland and Floodplain Plants: A Source Book for the Murray-Darling Basin.’ (National Water Commission: Canberra, ACT, Australia.)
Roberts, J., Young, B., and Marston, F. (2000). Estimating the water requirements for plants of floodplain wetlands: A guide. Occasional Paper 04/00, Land and Water Resources Research and Development Corporation, Canberra, ACT, Australia.
Roberts, J., Chan, C., Henderson, B., and Overton, I. (2009). Floodplain trees. In ‘Ecological Outcomes of Flow Regimes in the Murray–Darling Basin’. Report prepared for the National Water Commission by CSIRO Water for a Healthy Country Flagship. (Eds I. C. Overton, M. J. Colloff, T. M. Doody, B. Henderson, and S. M. Cuddy.) pp. 162–196. (CSIRO: Canberra, ACT, Australia.)
Roberts, J., Colloff, M., and Doody, T. (2016) Riverine vegetation of inland south‐eastern Australia. In ‘Vegetation of Australian Riverine Landscapes: Biology, Ecology and Management’. (Eds S. Capon, C. James, and M. Reid.) pp. 177–199. (CSIRO: Melbourne, Vic., Australia.)
Rogers, K., and Ralph, T. J. (2011). ‘Floodplain Wetland Biota in the Murray–Darling Basin: Water and Habitat Requirements.’ (CSIRO: Melbourne, Vic., Australia.)
Scown, M. W., Thoms, M. C., and De Jager, N. R. (2015). Floodplain complexity and surface metrics: Influences of scale and geomorphology. Geomorphology 245, 102–116.
| Floodplain complexity and surface metrics: Influences of scale and geomorphology.Crossref | GoogleScholarGoogle Scholar |
Sculthorpe, C. D. (1967). ‘Biology of Aquatic Vascular Plants.’ (Edward Arnold: London, UK.)
Shilpakar, R. L., and Thoms, M. (2009). The character and behaviour of floodplain vegetation landscapes. Hydrological Sciences 20, 42–52.
Stanford, J. A., and Ward, J. (1993). An ecosystem perspective of alluvial rivers: connectivity and the hyporheic corridor. Journal of the North American Benthological Society 12, 48–60.
| An ecosystem perspective of alluvial rivers: connectivity and the hyporheic corridor.Crossref | GoogleScholarGoogle Scholar |
Thomas, R., Lu, Y., Cox, S., and Hunter, S. (2012). Inundation response project, executive summary, NSW Rivers Environmental Restoration Program Subprogram II. Office of Environment and Heritage NSW, Sydney, NSW, Australia.
Thoms, M. C. (2003). Floodplain–river ecosystems: lateral connections and the implications of human interference. Geomorphology 56, 335–349.
| Floodplain–river ecosystems: lateral connections and the implications of human interference.Crossref | GoogleScholarGoogle Scholar |
Walker, K. F., Sheldon, F., and Puckridge, J. T. (1995). A perspective on dryland river ecosystems. Regulated Rivers: Research and Management 11, 85–104.
| A perspective on dryland river ecosystems.Crossref | GoogleScholarGoogle Scholar |
Ward, J. V., and Stanford, J. (1995). Ecological connectivity in alluvial river ecosystems and its disruption by flow regulation. Regulated Rivers: Research and Management 11, 105–119.
| Ecological connectivity in alluvial river ecosystems and its disruption by flow regulation.Crossref | GoogleScholarGoogle Scholar |
Ward, J., Tockner, K., and Schiemer, F. (1999). Biodiversity of floodplain river ecosystems: ecotones and connectivity. Regulated Rivers: Research and Management 15, 125–139.
| Biodiversity of floodplain river ecosystems: ecotones and connectivity.Crossref | GoogleScholarGoogle Scholar |
Wassens, S., Hall, A., Osborne, W., and Watts, R. J. (2010). Habitat characteristics predict occupancy patterns of the endangered amphibian Litoria raniformis in flow‐regulated flood plain wetlands. Austral Ecology 35, 944–955.
| Habitat characteristics predict occupancy patterns of the endangered amphibian Litoria raniformis in flow‐regulated flood plain wetlands.Crossref | GoogleScholarGoogle Scholar |
Welcomme, R. L. (1979). ‘Fisheries Ecology of Floodplain Rivers.’ (Longman: London, UK.)
Wilson, G. G. (2009). Managing environmental flows in an agricultural landscape: The Lower Gwydir floodplain. Final report to the Australian Government Department of Environment, Water, Heritage and the Arts. University of New England and Cotton Catchment Communities Cooperative Research Centre, Armidale, NSW, Australia.