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Morphometric techniques allow environmental reconstructions from low-diversity continental ostracode assemblages

(2010) JOURNAL OF PALEOLIMNOLOGY. 44(4). p.903-911
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Abstract
Quantification of intra-specific morphological variability of aquatic biota along environmental gradients can produce biological proxies that can be applied to paleoenvironmental reconstructions. This morphology-derived proxy information can be especially valuable when dealing with low-diversity fossil assemblages, i.e. in situations when paleoenvironmental inference based on species composition of the assemblage is less effective. We analyzed valve size and outline shape of the widespread and highly environmentally tolerant ostracode species Limnocythere inopinata collected in 15 lakes and ponds of Western Mongolia. We quantified shape variability among and within these living populations in relation to water chemistry and physical habitat variables. Our results indicate that: (1) a population's mean valve outline is related to habitat type, (2) surface water temperature, the alkalinity to sulphate ratio, specific conductance and total phosphorus together explain a high portion of the variance in mean valve outline between populations, and (3) a quantitative model inferring the alkalinity to sulphate ratio from mean valve outline has an RA(2) of 0.88 and RMSEP of 0.17. These results corroborate the hypothesis that high morphological variability in this ostracode species is due to both ecophenotypic variance and high clonal diversity associated with a mixed reproductive strategy (a combination of sexual and parthenogenetically reproducing lineages), and underline the value of morphometric techniques in paleoecology.
Keywords
Morphometric techniques, Ostracoda, Ecophenotypic variation, Clonal ecology, LIMNOCYTHERE-INOPINATA OSTRACODA, CRUSTACEA, LAKE

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MLA
Van der Meeren, Thijs, Dirk Verschuren, Emi Ito, et al. “Morphometric Techniques Allow Environmental Reconstructions from Low-diversity Continental Ostracode Assemblages.” JOURNAL OF PALEOLIMNOLOGY 44.4 (2010): 903–911. Print.
APA
Van der Meeren, T., Verschuren, D., Ito, E., & Martens, K. (2010). Morphometric techniques allow environmental reconstructions from low-diversity continental ostracode assemblages. JOURNAL OF PALEOLIMNOLOGY, 44(4), 903–911.
Chicago author-date
Van der Meeren, Thijs, Dirk Verschuren, Emi Ito, and Koenraad Martens. 2010. “Morphometric Techniques Allow Environmental Reconstructions from Low-diversity Continental Ostracode Assemblages.” Journal of Paleolimnology 44 (4): 903–911.
Chicago author-date (all authors)
Van der Meeren, Thijs, Dirk Verschuren, Emi Ito, and Koenraad Martens. 2010. “Morphometric Techniques Allow Environmental Reconstructions from Low-diversity Continental Ostracode Assemblages.” Journal of Paleolimnology 44 (4): 903–911.
Vancouver
1.
Van der Meeren T, Verschuren D, Ito E, Martens K. Morphometric techniques allow environmental reconstructions from low-diversity continental ostracode assemblages. JOURNAL OF PALEOLIMNOLOGY. 2010;44(4):903–11.
IEEE
[1]
T. Van der Meeren, D. Verschuren, E. Ito, and K. Martens, “Morphometric techniques allow environmental reconstructions from low-diversity continental ostracode assemblages,” JOURNAL OF PALEOLIMNOLOGY, vol. 44, no. 4, pp. 903–911, 2010.
@article{1108532,
  abstract     = {Quantification of intra-specific morphological variability of aquatic biota along environmental gradients can produce biological proxies that can be applied to paleoenvironmental reconstructions. This morphology-derived proxy information can be especially valuable when dealing with low-diversity fossil assemblages, i.e. in situations when paleoenvironmental inference based on species composition of the assemblage is less effective. We analyzed valve size and outline shape of the widespread and highly environmentally tolerant ostracode species Limnocythere inopinata collected in 15 lakes and ponds of Western Mongolia. We quantified shape variability among and within these living populations in relation to water chemistry and physical habitat variables. Our results indicate that: (1) a population's mean valve outline is related to habitat type, (2) surface water temperature, the alkalinity to sulphate ratio, specific conductance and total phosphorus together explain a high portion of the variance in mean valve outline between populations, and (3) a quantitative model inferring the alkalinity to sulphate ratio from mean valve outline has an RA(2) of 0.88 and RMSEP of 0.17. These results corroborate the hypothesis that high morphological variability in this ostracode species is due to both ecophenotypic variance and high clonal diversity associated with a mixed reproductive strategy (a combination of sexual and parthenogenetically reproducing lineages), and underline the value of morphometric techniques in paleoecology.},
  author       = {Van der Meeren, Thijs and Verschuren, Dirk and Ito, Emi and Martens, Koenraad},
  issn         = {0921-2728},
  journal      = {JOURNAL OF PALEOLIMNOLOGY},
  keywords     = {Morphometric techniques,Ostracoda,Ecophenotypic variation,Clonal ecology,LIMNOCYTHERE-INOPINATA OSTRACODA,CRUSTACEA,LAKE},
  language     = {eng},
  number       = {4},
  pages        = {903--911},
  title        = {Morphometric techniques allow environmental reconstructions from low-diversity continental ostracode assemblages},
  url          = {http://dx.doi.org/10.1007/s10933-010-9463-z},
  volume       = {44},
  year         = {2010},
}

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