Decadal dynamics of subtidal barrens habitat.

作者: Tim M. Glasby , Peter T. Gibson

DOI: 10.1016/J.MARENVRES.2019.104869

关键词:

摘要: Abstract Rocky reef barrens that are devoid of macroalgae can be created by various mechanisms, and often maintained in the long-term grazing urchins. The persistence varies greatly among locations, although few studies have investigated stability this habitat over multiple decades, particularly at large spatial scales. We used aerial images to test for differences temporal trajectories shallow (2–10 m) 21 sites (average size 12 ha) 30 years across 500 km coastline New South Wales, Australia. Longer-term (40–68 yr) cover were documented five these generally reflected 30-year patterns. Averaged all sites, area increased a rate 19.9 ± 8.4 m2 per year hectare from 1980s–2010s. Importantly, however, 55% had stable or fluctuating (±10% cover) period, rather than displaying continual increases. Although extent increases with latitude, dynamics did not differ three latitudinal regions where most extensive. Associations between variability environmental variables indicated topography might pay role influencing barrens. Examples such extensive relatively rare potential reasons possible future changes discussed.

参考文章(90)
N Andrew, Y Agatsuma, E Ballesteros, A Bazhin, E Creaser, D Barnes, L Botsford, A Bradbury, A Campbell, J Dixon, S Einarsson, PK Gerring, K Hebert, M Hunter, SB Hur, CR Johnson, MA Juinio-Menez, P Kalvass, RJ Miller, CA Moreno, JS Palleiro, D Rivas, SML Robinson, SC Schroeter, RS Steneck, RL Vadas, DA Woodby, Z Xiaoqi, Status and management of world sea urchin fisheries Oceanography and Marine Biology. ,vol. 40, pp. 343- 425 ,(2002) , 10.1201/9780203180594-26
Laura Airoldi, Michael W. Beck, Loss, status and trends for coastal marine habitats of Europe Oceanography and Marine Biology. ,vol. 45, pp. 345- 405 ,(2007)
JULIE A. PHILLIPS, JUDITH K. BLACKSHAW, Extirpation of Macroalgae (Sargassum spp.) on the Subtropical East Australian Coast Conservation Biology. ,vol. 25, pp. 913- 921 ,(2011) , 10.1111/J.1523-1739.2011.01727.X
Gene Likens, Alan Andersen, David MJS Bowman, C Michael Bull, Emma Burns, Chris R Dickman, Ary Hoffmann, David Keith, MJ Liddell, Andrew J Lowe, Daniel J Metclafe, Stuart Phinn, Jeremy Russell-Smith, Nikki Thurgate, GM Wardle, David B Lindenmayer, Value of long-term ecological studies Austral Ecology. ,vol. 37, pp. 745- 757 ,(2012) , 10.1111/J.1442-9993.2011.02351.X
Neil L. Andrew, Ecological aspects of the common sea urchin, Evechinus chloroticus, in northern New Zealand: A review New Zealand Journal of Marine and Freshwater Research. ,vol. 22, pp. 415- 426 ,(1988) , 10.1080/00288330.1988.9516313
Nick T. Shears, Russell C. Babcock, Marine reserves demonstrate top-down control of community structure on temperate reefs Oecologia. ,vol. 132, pp. 131- 142 ,(2002) , 10.1007/S00442-002-0920-X
NL Andrew, JH Choat, Habitat related differences in the survivorship and growth of juvenile sea urchins Marine Ecology Progress Series. ,vol. 27, pp. 155- 161 ,(1985) , 10.3354/MEPS027155
S. D. Ling, C. R. Johnson, S. D. Frusher, K. R. Ridgway, Overfishing reduces resilience of kelp beds to climate-driven catastrophic phase shift. Proceedings of the National Academy of Sciences of the United States of America. ,vol. 106, pp. 22341- 22345 ,(2009) , 10.1073/PNAS.0907529106