School of Ecosystem and Forest Sciences - Research Publications

Permanent URI for this collection

Search Results

Now showing 1 - 10 of 17
  • Item
  • Item
  • Item
    Thumbnail Image
    Species distributions represent intraspecific genetic diversity of freshwater fish in conservation assessments
    Hermoso, V ; Kennard, MJ ; Schmidt, DJ ; Bond, N ; Huey, JA ; Mondol, RK ; Jamandre, BW ; Hughes, JM (WILEY, 2016-10-01)
  • Item
    Thumbnail Image
    Go with the flow: the movement behaviour of fish from isolated waterhole refugia during connecting flow events in an intermittent dryland river
    Marshall, JC ; Menke, N ; Crook, DA ; Lobegeiger, JS ; Balcombe, SR ; Huey, JA ; Fawcett, JH ; Bond, NR ; Starkey, AH ; Sternberg, D ; Linke, S ; Arthington, AH (WILEY, 2016-08-01)
  • Item
  • Item
    Thumbnail Image
    Sediment Respiration Pulses in Intermittent Rivers and Ephemeral Streams
    von Schiller, D ; Datry, T ; Corti, R ; Foulquier, A ; Tockner, K ; Marce, R ; Garcia-Baquero, G ; Odriozola, I ; Obrador, B ; Elosegi, A ; Mendoza-Lera, C ; Gessner, MO ; Stubbington, R ; Albarino, R ; Allen, DC ; Altermatt, F ; Arce, M ; Arnon, S ; Banas, D ; Banegas-Medina, A ; Beller, E ; Blanchette, ML ; Blanco-Libreros, JF ; Blessing, J ; Boechat, IG ; Boersma, KS ; Bogan, MT ; Bonada, N ; Bond, NR ; Brintrup, K ; Bruder, A ; Burrows, RM ; Cancellario, T ; Carlson, SM ; Cauvy-Fraunie, S ; Cid, N ; Danger, M ; de Freitas Terra, B ; Dehedin, A ; De Girolamo, AM ; del Campo, R ; Diaz-Villanueva, V ; Duerdoth, CP ; Dyer, F ; Faye, E ; Febria, C ; Figueroa, R ; Four, B ; Gafny, S ; Gomez, R ; Gomez-Gener, L ; Graca, MAS ; Guareschi, S ; Gucker, B ; Hoppeler, F ; Hwan, JL ; Kubheka, S ; Laini, A ; Langhans, SD ; Leigh, C ; Little, CJ ; Lorenz, S ; Marshall, J ; Martin, EJ ; McIntosh, A ; Meyer, E ; Milisa, M ; Mlambo, MC ; Moleon, M ; Morais, M ; Negus, P ; Niyogi, D ; Papatheodoulou, A ; Pardo, I ; Paril, P ; Pesic, V ; Piscart, C ; Polasek, M ; Rodriguez-Lozano, P ; Rolls, RJ ; Sanchez-Montoya, MM ; Savic, A ; Shumilova, O ; Steward, A ; Taleb, A ; Uzan, A ; Vander Vorste, R ; Waltham, N ; Woelfle-Erskine, C ; Zak, D ; Zarfl, C ; Zoppini, A (AMER GEOPHYSICAL UNION, 2019-10-16)
    Intermittent rivers and ephemeral streams (IRES) may represent over half the global stream network, but their contribution to respiration and carbon dioxide (CO2) emissions is largely undetermined. In particular, little is known about the variability and drivers of respiration in IRES sediments upon rewetting, which could result in large pulses of CO2. We present a global study examining sediments from 200 dry IRES reaches spanning multiple biomes. Results from standardized assays show that mean respiration increased 32-fold to 66-fold upon sediment rewetting. Structural equation modeling indicates that this response was driven by sediment texture and organic matter quantity and quality, which, in turn, were influenced by climate, land use, and riparian plant cover. Our estimates suggest that respiration pulses resulting from rewetting of IRES sediments could contribute significantly to annual CO2 emissions from the global stream network, with a single respiration pulse potentially increasing emission by 0.2–0.7%. As the spatial and temporal extent of IRES increases globally, our results highlight the importance of recognizing the influence of wetting-drying cycles on respiration and CO2 emissions in stream networks.
  • Item
    Thumbnail Image
    Reservoir to river: Quantifying fine-scale fish movements after translocation
    Carpenter-Bundhoo, L ; Butler, GL ; Espinoza, T ; Bond, NR ; Bunn, SE ; Kennard, MJ (WILEY, 2019-07-26)
  • Item
    Thumbnail Image
    Towards a systems approach for river basin management-Lessons from Australia's largest river
    Thompson, RM ; Bond, N ; Poff, NL ; Byron, N (WILEY, 2019-06-01)
  • Item
    Thumbnail Image
    Assessment of environmental flow scenarios using state-and-transition models
    Bond, NR ; Grigg, N ; Roberts, J ; McGinness, H ; Nielsen, D ; O'Brien, M ; Overton, I ; Pollino, C ; Reid, JRW ; Stratford, D (WILEY, 2018-08-01)
  • Item
    Thumbnail Image
    Monitoring age-related trends in genomic diversity of Australian lungfish
    Schmidt, DJ ; Fallon, S ; Roberts, DT ; Espinoza, T ; McDougall, A ; Brooks, SG ; Kind, PK ; Bond, NR ; Kennard, MJ ; Hughes, JM (WILEY, 2018-08-01)
    An important challenge for conservation science is to detect declines in intraspecific diversity so that management action can be guided towards populations or species at risk. The lifespan of Australian lungfish (Neoceratodus forsteri) exceeds 80 years, and human impacts on breeding habitat over the last half century may have impeded recruitment, leaving populations dominated by old postreproductive individuals, potentially resulting in a small and declining breeding population. Here, we conduct a "single-sample" evaluation of genetic erosion within contemporary populations of the Australian lungfish. Genetic erosion is a temporal decline in intraspecific diversity due to factors such as reduced population size and inbreeding. We examined whether young individuals showed signs of reduced genetic diversity and/or inbreeding using a novel bomb radiocarbon dating method to age lungfish nonlethally, based on 14 C ratios of scales. A total of 15,201 single nucleotide polymorphic (SNP) loci were genotyped in 92 individuals ranging in age from 2 to 77 years old. Standardized individual heterozygosity and individual inbreeding coefficients varied widely within and between riverine populations, but neither was associated with age, so perceived problems with recruitment have not translated into genetic erosion that could be considered a proximate threat to lungfish populations. Conservation concern has surrounded Australian lungfish for over a century. However, our results suggest that long-lived threatened species can maintain stable levels of intraspecific variability when sufficient reproductive opportunities exist over the course of a long lifespan.