Now showing items 41-50 of 122
The terrestrial vegetation and flora of North and South Manitou Islands, Sleeping Bear Dunes National Lakeshore, Leelanau County, Michigan
(Douglas Lake [Mich.]: University of Michigan Biological Station, 1983-09-01)
Tannin assays in ecological studies: Lack of correlation between phenolics, proanthocyanidins and protein-precipitating constituents in mature foliage of six oak species
(Springer-Verlag, 1982-08)
There is no correlation between protein-precipitating capacity and either total phenolic or proanthocyanidin content of extracts of mature foliage from six species of oaks: Quercus alba (white oak), Q. bicolor (swamp white ...
Estimates of free and bound indole-3-acetic acid and zeatin levels in relation to regulation of apical dominance and tiller release in oat shoots
(Springer-Verlag; Springer-Verlag New York Inc., 1983-08)
Oat stem segments containing quiescent lateral (tiller) buds during times of strong apical dominance, and growing buds released from this inhibition, were collected for analysis of native auxin and cytokinins. Free IAA and ...
Culture theory: The developing synthesis from biology
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1982-09)
We believe that a useful, complete theory of culture is simpler than the dichotomies promoted by the coevolutionary approach suggest. Culture can be regarded as an aspect of the environment into which each human is born ...
Additional sources of disturbance pheromone affecting the crayfish
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1989-01)
The responses of individually housed crayfish ( Orconectes virilis ) were recorded during introduction of water from aquaria containing disturbed or undisturbed animals. When female O. virilis were disturbed, form II males ...
Why study fossils? Review of Evolutionary History of the Primates , by Frederick S. Szalay and Eric Delson. New York and London: Academic Press, 1979, 580 pp, $43
(Wiley Subscription Services, Inc., A Wiley Company, 1981)
No Abstract.
Shell exchanges in the hermit crab Calcinus tibicen
(Elsevier, 1989-01)
Shell exchange interactions of individuals of the hermit crab Calcinus tibicen were examined to see if these crabs behaved in a pattern which was similar to that observed in other species. Multiple regression analyses ...
Rearrangement of the 5S ribosomal RNA gene clusters during the development and replication of the macronucleus in Tetrahymena thermophila
(Wiley Subscription Services, Inc., A Wiley Company, 1984)
The organization of the 5S rRNA genes in the MACronuclear genome of Tetrahymena thermophila was examined during MAC development and replication. The 5S genes are arranged in several tandem arrays of alternating transcribed ...
Evaporative losses of water by birds
(Elsevier, 1982)
1. 1. Birds lose water in evaporation from the respiratory tract and, in many species, through the skin. Anatomical arrangements in the nasal passages contribute to conservation of water and heat from the expired air in ...
Cellulose digestion in Monochamus marmorator Kby. (Coleoptera: Cerambycidae): Role of acquired fungal enzymes
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1986-05)
Larvae of the balsam fir sawyer, Monochamus marmorator Kby. (Coleoptera, Cerambycidae), contain midgut digestive enzymes active against hemicellulose and cellulose. Cellulases from larvae fed on balsam fir wood infected ...