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
Macroevolution via secondary endosymbiosis: a Neo-Goldschmidtian view of unicellular hopeful monsters and Darwin’s primordial intermediate form
Ulrich Kutschera,Karl J. Niklas +1 more
TL;DR: It is argued that a Neo-Goldschmidtian perspective leads to the conclusion that cell chimeras such as euglenids and dinoflagellates, which are important groups of phytoplankton in freshwater and marine ecosystems, should be interpreted as “successful monsters”.
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Computer simulations of early land plant branching morphologies; canalization of patterns during evolution?
TL;DR: The transition from regular to geometric branching and the "canalization" of reiterative branching patterns may represent a grade level response to selective pressures related to mechanical design and vegetative reproduction.
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Applications of Finite Element Analyses to Problems in Plant Morphology
TL;DR: The application of the finite element method to problems of plant morphology makes possible the dynamic simulations of some aspects of growth and development in living plants, and the extrapolation of missing stages in the ontogeny of fossil plants.
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Life history strategies drive size-dependent biomass allocation patterns of dryland ephemerals and shrubs
Renfei Chen,Jinzhi Ran,Heng Huang,Longwei Dong,Yuan Sun,Mingfei Ji,Weigang Hu,Shuran Yao,Jingli Lu,Haiyang Gong,Shubin Xie,Qiajun Du,Qingqing Hou,Karl J. Niklas,Jianming Deng +14 more
TL;DR: In this article, different life history strategies drive or at least participate in different plant biomass allocation patterns, as, for example, the life history differences between desert ephemeral and shrub species.
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Phloem networks in leaves.
TL;DR: Recent advances in quantifying phloem hydraulics in fully expanded mature leaves with different vascular architectures are summarized and observations are reported that invalidate da Vinci's and Murray's hydraulic models as plausible constructs for understanding photosynthate transport in the leaf lamina.
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