Results 111 to 120 of about 5,537,837 (195)
Abstract Hadrosaurid dinosaurs are generally regarded as “crested” or “non‐crested” depending on the presence or absence of a bony cranial crest. At least one supposedly “non‐crested” hadrosaur is known to have possessed a soft tissue cranial crest (or comb), based on an exceptionally preserved “mummified” specimen. Here we redescribe this specimen and
Henry S. Sharpe +4 more
wiley +1 more source
ABSTRACT Recent methodological development in phylogenetic inference has focused predominantly on molecular data. However, renewed interest in other data types, particularly morphological data, has followed from the increased recognition of the power of total evidence and tip‐dating approaches, including fossil data, for inference of time‐scaled trees ...
Melanie J. Hopkins +9 more
wiley +1 more source
Divergent Nutrient Resorption Strategies in C4 Desert Shrubs: Stoichiometric Evidence From Assimilative Branches. [PDF]
Wei SS +6 more
europepmc +1 more source
ABSTRACT The structure of stream networks naturally fragments freshwater habitats, but this complexity is increasingly intensified by dams and reservoirs. How anthropogenic fragmentation interacts with natural isolation gradients to affect fish populations remains poorly understood.
Ana Carolina Daldegan +12 more
wiley +1 more source
Scaling law links plant growth variation to grain yield in wheat stands. [PDF]
Golan G +6 more
europepmc +1 more source
Two‐toed sloths use their thoracic limbs for more frequent and greater suspensory support than three‐toed sloths and have muscle architectural properties consistent with stability of the pectoral girdle, enhanced flexor force/torque applied at the shoulder and elbow joints, and grip on the support as indicated by their myology. Abstract Two‐toed sloths
C. S. Tucker +4 more
wiley +1 more source
Allometric Growth of Annual <i>Pinus yunnanensis</i> After Decapitation Under Different Shading Levels. [PDF]
Wang P +5 more
europepmc +1 more source
Functional morphology of trabecular bone in the calcaneus of African apes
Pan exhibits significantly higher calcaneal tuberosity trabecular thickness (Tb.Th) and bone volume fraction (BV/TV) than Gorilla, potentially reflecting higher triceps surae forces for vertical climbing. Both taxa have significantly higher Tb.Th and BV/TV in the anterior calcaneus; the difference is exaggerated in Gorilla, potentially reflecting ...
Christine M. Harper, Biren A. Patel
wiley +1 more source
Nitrogen and Phosphorus Additions Alleviate Nitrogen Limitation in <i>Pinus yunnanensis</i> Seedlings by Reshaping Organ-Specific Stoichiometry. [PDF]
Li N, Liao J, Su X, Li X, Cai N, Xu Y.
europepmc +1 more source
We report that femoral cortical thickness was strongly and negatively associated with secondary osteon porosity in an Australian autopsy sample, indicating that thicker cortices contained less porous secondary osteons. This allometric relationship held for the whole sample, males and sedentary well‐nourished individuals, but not for females or other ...
Justyna J. Miszkiewicz +3 more
wiley +1 more source

