Glosario de morfometría geométrica

Hola, muchos de Uds deben conocerlo pero igualmente, quería dejarles los link para el glosario de morfometría escrito por Leslie Marcus, James Rohlf, Fred Bookstein y Dennis Slice

http://life.bio.sunysb.edu/morph/glossary/gloss1.html
http://life.bio.sunysb.edu/morph/glossary/gloss2.html

saludos

Sitio web de ictiología

¡Hola! Mi nombre es Jorge L. S. Nunes, yo soy profesor y investigador del Universidade Federal do Maranhão (UFMA) en Brasil. Actualmente trabajo con ictiología aplicando las técnicas de morfometría geométrica y ecomorfología.

Yo administro una página en la internet de ictiología dónde ha muchos artículos científicos lograda en el estado de Maranhão.

Para acceso: www.peixesdomaranhao.blogspot.com

Jorge Nunes

3:52 PM, enero 12, 2008

Literatura reciente, 2

Shen, B, L. Dong, S. Xiao & M. Kowalewski. 2008.The Avalon Explosion: Evolution of Ediacara Morphospace. Science Vol. 319. no. 5859, pp. 81 - 84.

"Ediacara fossils [575 to 542 million years ago (Ma)] represent Earth's oldest known complex macroscopic life forms, but their morphological history is poorly understood. A comprehensive quantitative analysis of these fossils indicates that the oldest Ediacara assemblage—the Avalon assemblage (575 to 565 Ma)—already encompassed the full range of Ediacara morphospace. A comparable morphospace range was occupied by the subsequent White Sea (560 to 550 Ma) and Nama (550 to 542 Ma) assemblages, although it was populated differently. In contrast, taxonomic richness increased in the White Sea assemblage and declined in the Nama assemblage. These diversity changes, occurring while morphospace range remained relatively constant, led to inverse shifts in morphological variance. The Avalon morphospace expansion mirrors the Cambrian explosion, and both events may reflect similar underlying mechanisms."