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Joerg A. Fritz
Harvard University
7Publications
3H-index
84Citations
Publications 7
Newest
#1Agnese SeminaraH-Index: 11
#2Joerg A. Fritz (Harvard University)H-Index: 3
Last.Anne Pringle (UW: University of Wisconsin-Madison)H-Index: 31
view all 4 authors...
Lichens fix carbon dioxide from the air to build biomass. Crustose and foliose lichens grow as nearly flat, circular disks. Smaller individuals grow slowly, but with small, steady increases in radi...
1 CitationsSource
#1Anne PringleH-Index: 31
#2Michael P. BrennerH-Index: 58
Last.Agnese SeminaraH-Index: 11
view all 5 authors...
1 CitationsSource
#1Anne PringleH-Index: 31
#2Michael P. BrennerH-Index: 58
Last.Agnese SeminaraH-Index: 11
view all 5 authors...
#1Joerg A. Fritz (Harvard University)H-Index: 3
#2Joseph Brancale (Harvard University)H-Index: 2
Last.Michael P. Brenner (Harvard University)H-Index: 58
view all 7 authors...
The striking diversity of bird beak shapes is an outcome of natural selection, yet the relative importance of the limitations imposed by the process of beak development on generating such variation is unclear. Untangling these factors requires mapping developmental mechanisms over a phylogeny far exceeding model systems studied thus far. We address this issue with a comparative morphometric analysis of beak shape in a diverse group of songbirds. Here we show that the dynamics of the proliferativ...
16 CitationsSource
#1Joerg A. Fritz (Harvard University)H-Index: 3
#2Agnese Seminara (Harvard University)H-Index: 11
Last.Michael P. Brenner (Harvard University)H-Index: 58
view all 5 authors...
The forcibly ejected spores of ascomycete fungi must penetrate several millimetres of nearly still air surrounding sporocarps to reach dispersive airflows, and escape is facilitated when a spore is launched with large velocity. To launch, the spores of thousands of species are ejected through an apical ring, a small elastic pore. The startling diversity of apical ring and spore shapes and dimensions make them favoured characters for both species descriptions and the subsequent inference of relat...
11 CitationsSource
The astonishing variation in the shape and size of bird beaks reflects a wide range of dietary specializations that played an important role in avian diversification. Among Darwin’s finches, ground finches (Geospiza spp.) have beaks that represent scaling variations of the same shape, which are generated by alterations in the signaling pathways that regulate growth of the two skeletal components of the beak: the prenasal cartilage (pnc) and the premaxillary bone (pmx). Whether this developmental...
55 CitationsSource
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