Karl J. Niklas
Cornell University
456 Papers
3.1K Citations
Karl J. Niklas is an academic researcher from Cornell University. The author has contributed to research in topics: Biology & Biomass (ecology). The author has an hindex of 68, co-authored 405 publications. Previous affiliations of Karl J. Niklas include University of Illinois at Urbana–Champaign & Purdue University.
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Papers
Julius von Sachs' forgotten 1897-article: sexuality and gender in plants vs. humans.
Ulrich Kutschera,Karl J. Niklas +1 more
TL;DR: In this paper, the authors summarize Sachs' achievements and his description of sexuality with respect to the cellular basis of plant and animal biparental reproduction, and conclude that Sachs was a humanist as well as a great scientist.
The 2/3 scaling of twig nitrogen to phosphorus in woody plants
TL;DR: In this paper , a comprehensive dataset comprising 2,038 N =P paired observations for a total of 536 woody species was compiled and analyzed to determine whether a general scaling relationship exists.
Measuring the tempo of plant death and birth
TL;DR: A new and far more masterful analysis of the diversification of the vascular plants shows that episodes of high extinction coincided with major floristic transitions and that shifts in origination and extinction rates often coincided with important boundaries and events in the geological column.
Ontogenetic shift in the scaling of dark respiration with whole-plant mass in seven shrub species
TL;DR: An ontogenetic shift in the metabolic scaling during plant ontogeny is demonstrated, suggesting that a contributing factor is the accrual of less metabolically active tissues or organs with increasing total body mass in the form of secondary tissues with high cell wall volume fractions.
Nodal septa and the rigidity of aerial shoots of equisetum hyemale
TL;DR: The biomechanical role of septate nodes (points of leaf attachment with transverse diaphragms of tissue) in the otherwise hollow aerial stems of Equisetum hyemale L. is examined, and the hypothesis that septa act as structural elements is tested.