Research Topics
| K J NiklasSummaryAffiliation: Cornell University Country: USA Publications
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Detail Information
Publications
Maximum plant height and the biophysical factors that limit itKarl J Niklas
Department of Plant Biology, Cornell University, Ithaca, NY 14853, USA
Tree Physiol 27:433-40. 2007..It may be the case that adaptations to mechanical and hydraulic phenomena have optimized growth, survival and reproductive success rather than longevity and mature size...
The origins of multicellular organismsKarl J Niklas
Department of Plant Biology, Cornell University, Ithaca, NY, 14853, USA
Evol Dev 15:41-52. 2013....- Mechanical properties of wood disproportionately increase with increasing densityKarl J Niklas
Department of Plant Biology, Cornell University, Ithaca, New York 14853, USA
Am J Bot 99:169-70. 2012.... - Differences in the scaling of area and mass of Ginkgo biloba (Ginkgoaceae) leaves and their relevance to the study of specific leaf areaKarl J Niklas
Department of Plant Biology, Cornell University, Ithaca, New York 14853, USA
Am J Bot 98:1381-6. 2011..M scaling relationship within canopies would raise a number of important questions, in particular what constitutes an adequate sampling procedure to determine the whole-canopy A vs. M relationship... - Scaling the paths of resistanceK J Niklas
Department of Plant Biology, Cornell University, Ithaca, NY 14853, USA
New Phytol 169:219-21. 2006 - Biomass partitioning and leaf N,P - stoichiometry: comparisons between tree and herbaceous current-year shootsKarl J Niklas
Department of Plant Biology, Cornell University, Ithaca, NY 14853, USA
Plant Cell Environ 29:2030-42. 2006..Therefore, tree shoots can be viewed as populations of herbs elevated by their older, woody herbaceous cohorts. However, tree leaf stoichiometry cannot be modelled in terms of herbaceous N,P - leaf stoichiometry... 
"Diminishing returns" in the scaling of functional leaf traits across and within species groupsKarl J Niklas
Department of Plant Biology, Cornell University, Ithaca, NY 14850, USA
Proc Natl Acad Sci U S A 104:8891-6. 2007..We argue that this set reflects a fundamental property of all plants and helps to explain why annual growth fails to keep pace with increases in total body mass across species...- Sizing up life and deathKarl J Niklas
Department of Plant Biology, Cornell University, Ithaca, NY 14853, USA
Proc Natl Acad Sci U S A 104:15589-90. 2007 - The evolution of the land plant life cycleKarl J Niklas
Department of Plant Biology, Cornell University, Ithaca, NY 14853, USA
New Phytol 185:27-41. 2010.... - Functional adaptation and phenotypic plasticity at the cellular and whole plant levelKarl J Niklas
Department of Plant Biology, Cornell University, Ithaca, NY 14853, USA
J Biosci 34:613-20. 2009..Among the conclusions that emerge from this exploration is the perspective that the plant cell is phenotypically plastic... - Climbing plants: attachment and the ascent for lightKarl J Niklas
Department of Plant Biology, Cornell University, Ithaca, NY 14853, USA
Curr Biol 21:R199-201. 2011..How do vines climb upward and harvest sunlight? A detailed study of one species (Galium aparine L.) shows that leaf hairs (trichomes) provide one solution that solves both tasks simultaneously... - Plant allometry, leaf nitrogen and phosphorus stoichiometry, and interspecific trends in annual growth ratesKarl J Niklas
Department of Plant Biology, Cornell University, Ithaca, NY 14853, USA
Ann Bot 97:155-63. 2006..Because the operation of this 'machinery' is basic to the biology of all life forms, its allometry may provide a mechanistic explanation for the apparent ubiquity of quarter-power scaling rules... - A comparison between the record height-to-stem diameter allometries of Pachycaulis and Leptocaulis speciesKarl J Niklas
Department of Plant Biology, Cornell University, Ithaca, NY 14853, USA
Ann Bot 97:79-83. 2006..Here, the interspecific allometries for palms, cacti and cycads are reported and compared with those of leptocaulis dicot and conifer tree species to determine whether pachycauly limits Hmax with respect to Dmax... - Plant allometry: is there a grand unifying theory?Karl J Niklas
Department of Plant Biology, Cornell University, Ithaca, New York 14853, USA
Biol Rev Camb Philos Soc 79:871-89. 2004..Nevertheless, the validation of this theory requires much additional work and raises a number of procedural and conceptual concerns that must be resolved before a single 'global' theory is accepted... - Computing factors of safety against wind-induced tree stem damageK J Niklas
Department of Plant Biology, Cornell University, Ithaca, NY 14853, USA
J Exp Bot 51:797-806. 2000.... - Invariant scaling relationships for interspecific plant biomass production rates and body sizeK J Niklas
Department of Plant Biology, Cornell University, Ithaca, NY 18453, USA
Proc Natl Acad Sci U S A 98:2922-7. 2001..g., net primary productivity is predicted to be largely insensitive to community species composition or geological age)... - The influence of gravity and wind on land plant evolutionK J Niklas
Section of Plant Biology, Cornell University, Ithaca, NY 14853, USA
Rev Palaeobot Palynol 102:1-14. 1998.... - On the allometry of biomass partitioning and light harvesting for plants with leafless stemsKarl J Niklas
The Department of Plant Biology, 228 Plant Science Building or 462 Mann Library, Cornell University, Ithaca, NY 14853 5908, USA
J Theor Biol 217:47-52. 2002..The contention that the H of leafless stems scales isometrically with respect to stem surface area is thus reasonable both theoretically and empirically... - Methods for calculating factors of safety for plant stemsK J Niklas
Department of Plant Biology, Cornell University, Ithaca, NY 14853, USA
J Exp Biol 202:3273-80. 1999..The disadvantage of this approach is that it sheds little light on the probability of an individual's survival... - Modelling below- and above-ground biomass for non-woody and woody plantsKarl J Niklas
Department of Plant Biology, Cornell University, Ithaca, NY 14853, USA
Ann Bot 95:315-21. 2005..The aims of this paper are to provide a model and to test its predictions using a recently assembled, large database (1406 data entries for 257 species)... - Growth and hydraulic (not mechanical) constraints govern the scaling of tree height and massKarl J Niklas
Department of Plant Biology, Cornell University, Ithaca, NY 14853, USA
Proc Natl Acad Sci U S A 101:15661-3. 2004..This model also sheds light on why L, D, and M scale differently across species and habitats as a result of differences in absolute size... - A phyletic perspective on the allometry of plant biomass-partitioning patterns and functionally equivalent organ-categoriesKarl J Niklas
Department of Plant Biology, Cornell University, Ithaca, NY 14853, USA
New Phytol 171:27-40. 2006.... - A reevaluation of the key factors that influence tomato fruit softening and integrityMontserrat Saladie
Department of Plant Biology, Cornell University, Ithaca, New York 14853, USA
Plant Physiol 144:1012-28. 2007..A model is proposed in which the cuticle affects the softening of intact tomato fruit both directly, by providing a physical support, and indirectly, by regulating water status... - Biological scaling: does the exception prove the rule?Brian J Enquist
1 Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, Arizona 85721, USA 2 The Santa Fe Institute, Santa Fe, New Mexico 87501, USA
Nature 445:E9-10; discussion E10-1. 2007..Here we show that these conclusions misrepresent metabolic scaling theory and that their results are actually consistent with this theory... - Global allocation rules for patterns of biomass partitioning in seed plantsBrian J Enquist
Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 87519, USA
Science 295:1517-20. 2002..The model thus identifies and defines the limits that have guided the diversification of seed plant biomass allocation strategies... - Above- and below-ground biomass relationships across 1534 forested communitiesDong Liang Cheng
Key Laboratory of Arid and Grassland Agroecology, Lanzhou University, Ministry of Education, Lanzhou, Gansu Province 730000, China
Ann Bot 99:95-102. 2007..Allometric theory predicts that a similar isometric scaling relationship should hold true across diverse forest-types, regardless of vegetational composition... - The role of Quaternary environmental change in plant macroevolution: the exception or the rule?Katherine J Willis
School of Geography and the Environment, University of Oxford, Oxford OX1 3TB, UK
Philos Trans R Soc Lond B Biol Sci 359:159-72; discussion 172. 2004.... - The modern theory of biological evolution: an expanded synthesisUlrich Kutschera
Institut fur Biologie, Universitat Kassel, Heinrich Plett Strasse 40, 34109 Kassel, Germany
Naturwissenschaften 91:255-76. 2004..These sub-theories require continued elaboration, particularly in light of molecular biology, to answer open-ended questions concerning the mechanisms of evolution in all five kingdoms of life... - Similarity of mammalian body size across the taxonomic hierarchy and across space and timeFelisa A Smith
National Center for Ecological Analysis and Synthesis, Working Group on Body Size in Ecology and Paleoecology, Santa Barbara, California 93101 5504, USA
Am Nat 163:672-91. 2004..Lineages have diversified in size to exploit environmental opportunities but only within limits set by allometric, ecological, and evolutionary constraints...