id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
work_mzlxcrzjcrh2dmyl22ywegzpfu	David L. Rodland	A clockwork mollusc: Ultradian rhythms in bivalve activity revealed by digital photography	2006.0	1	.pdf	application/pdf	489	48	47	A clockwork mollusc: Ultradian rhythms in bivalve activity INCREMENTS Research Group, Institute for Geology and Paleontology, Johann Wolfgang Goethe University — Frankfurt am Main, of bivalve molluscs at ultradian (sub-daily) time-scales over long intervals. bivalves identify several ultradian biological rhythms of similar duration. rhythms among marine and freshwater bivalve species maintained under constant (but differing) conditions suggests the influence Sub-daily growth increments preserved in the shells of rapidly growing bivalve species are potentially related to these biological rhythms, with implications for shell growth, Keywords: Anodonta cygnea; Arctica islandica; Mytilus edulis; Sclerochronology; Wavelet analysis The periodicity of growth increments in the skeletons of bivalve molluscs has been documented extensively 0022-0981/$ see front matter © 2006 Elsevier B.V. All rights reserved. paleoclimate records (e.g., Schöne, 2004), determining modes of evolutionary change (e.g., Jones and Gould, origin of smaller growth increments remains a matter of A clockwork mollusc: Ultradian rhythms in bivalve activity revealed by digital photography	./cache/work_mzlxcrzjcrh2dmyl22ywegzpfu.pdf	./txt/work_mzlxcrzjcrh2dmyl22ywegzpfu.txt