HORNE, FRANCIS R., AND KLAUS W. BEYENBACH. Physiological properties of hemoglobin in the branchiopod crustacean Triops. Am. Je Physiol. 220(6) : 1875188 1. 197 1 .-Hemoglobin of the freshwater crustacean, Triops longicaudatus, was found to have oxygen equilibrium curves similar to those of the white rat when compared under identical experimental conditions (e.g. pH-7.1; temp = 22-23 C; Hb = 2 m...

Tadpole shrimp (TPS) were reared at 15, 20, 25, and 30 degrees C in the laboratory. Size of TPS was temperature and age dependent with more rapid development at warmer temperatures. Survivorship was inversely related to rearing temperature. Mean age at death was 24.2, 19.2, 14.3, and 11.8 days at 15, 20, 25, and 30 degrees C, respectively. Rearing temperature (excluding 15 degrees C) did not af...

Hypoxic exposure experienced during sensitive developmental periods can shape adult physiological capabilities and define regulatory limits. Tadpole shrimp were reared under normoxic (19-21 kPa O(2)), moderate (10-13 kPa O(2)) or severe (1-3 kPa O(2)) hypoxic conditions to investigate the influence of developmental oxygen partial pressure (P(O(2))) on adult metabolic, respiratory and cardiovasc...

Species with large distributions provide unique opportunities to test how geography has influenced biotic diversification. In this work, we aimed explore the effect of geographic barriers on distribution phenotypic and genetic variation a spider species that is widespread in continental insular America. We obtained an alignment mitochondrial locus Cytochrome Oxidase I (COI) for 408 individuals ...