Articles | Volume 43, issue 2
https://doi.org/10.5194/jm-43-337-2024
https://doi.org/10.5194/jm-43-337-2024
Research article
 | 
22 Aug 2024
Research article |  | 22 Aug 2024

Distribution of two notodendrodid foraminiferal congeners in McMurdo Sound, Antarctica: an example of extreme regional endemism?

Andrea Habura, Stephen P. Alexander, Steven D. Hanes, Andrew J. Gooday, Jan Pawlowski, and Samuel S. Bowser

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Cited articles

Altenbach, A. V., Pflaumann, U., Schiebel, R., Thies, A., Timm, S., and Trauth, M.: Scaling percentages and distributional patterns of benthic foraminifera with flux rates of organic carbon, J. Foramin. Res., 29, 173–185, 1999. 
Alve, E. and Goldstein, S. T.: Propagule transport as a key method of dispersal in benthic foraminifera (Protista), Limnol. Oceanogr., 48, 2163–2170, https://doi.org/10.4319/lo.2003.48.6.2163, 2003. 
Alve, E. and Goldstein, S. T.: Dispersal, survival and delayed growth of benthic foraminiferal propagules, J. Sea Res., 63, 36–51, https://doi.org/10.1016/j.seares.2009.09.003, 2010. 
Bowser, S. S.: Invasive activity of Allogromia pseudopodial networks: Skyllocytosis of a gelatin/agar gel, J. Protozool., 32, 9–12, https://doi.org/10.1111/j.1550-7408.1985.tb03005.x ,1985. 
Bowser, S. S., Gooday, A. J., Alexander, S. P., and Bernhard, J. M.: Larger agglutinated foraminifera of McMurdo Sound, Antarctica: Are Astrammina rara and Notodendrodes antarctikos allogromiids incognito?, Mar. Micropaleontol., 26, 75–88, https://doi.org/10.1016/0377-8398(95)00024-0, 1995a. 
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Two species of giant, single-celled "trees” inhabit the seafloor in McMurdo Sound, Antarctica. These unicellular creatures are large enough to be seen and counted by scuba divers. We found that one of the tree species is widely spread, whereas the other inhabits only a small region on the western side of the sound. These types of unicellular trees have not been found elsewhere in the world ocean and are particularly vulnerable to the effects of climate change.