ISSN:
1573-8590
Keywords:
episodic playa lakes
;
macroinvertebrates
;
Mexico
;
salt lakes
;
temporary waters
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Geography
Notes:
Abstract Totolcingo (El Carmen), a large and now episodically filled playa lake in the east-ernmost portion of the Mexican Plateau, filled with water in 1993. Water persisted for just one month (May). Alkaline (pH ≈ 10), saline (K25 up to 30,000μS/cm) waters, dominated by NaHCO3 and Na2CO3, characterized the lake. The fauna was depauperate. The components of the fauna wereEphydra (Hydropyrus)hians Say (ephydrid),Limnodrilus hoffmeisteri Claparède (tubificid), andBerosus sp. (Coleoptera). The species in the lake were widely dispersed and typical inhabitants of saline lakes. Possible reasons for the depauperate fauna include (a) overall physical and chemical conditions, (b) unpredictable hydrology, and (c) the short (one month) inundation period prevented colonization.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01997141
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