Insects such as Drosophila melanogaster undergo a derived form of segmentation termed long germband segmentation. In long germband insects, all of the body regions are specified by the blastoderm stage. Thus, the entire body plan is proportionally represented on the blastoderm. This is in contrast to short and intermediate germband insects where only the most anterior body regions are specified...

Insects have evolved a large variety of specialized feeding strategies, with a corresponding variability in mouthpart morphology. We have, however, little understanding of the developmental mechanisms that underlie this diversity. Until recently it was difficult to perform any analysis of gene function outside of the genetic model insects Drosophila melanogaster and Tribolium castaneum. In this...

La versión en inglés de este ensayo, “Learning the Grammar of Animacy”, fue publicada originalmente el libro Braiding sweetgrass: indigenous wisdom, scientific knowledge and teachings plants, publicado por Milkweed Editions, 2013. Una previa se publicó The Leopold Outlook, 2012.

In the present investigation vessels of 16 species of family Asclepiadaceae have been studied. Through a lot of variation exists in the size and shape of vessels, number of perforation plates and intravascular thickening of walls in the taxa, the vessels in asclepiadaceae are found highly specified.

The Monarch butterfly eastern population ( Danaus plexippus ) is in decline primarily due to habitat loss. Current restoration programs focus on re-establishing milkweed, the primary food resource for caterpillars, central United States of America. However, individual components life cycle function as part an integrated whole. Here we develop MOBU-SDyM, a migration-wide systems dynamics model m...

The species richness and biodiversity of vegetation in Hungary are increasingly threatened by invasive plant brought from other continents foreign ecosystems. These have spread aggressively the natural semi-natural habitats Europe. Common milkweed (Asclepias syriaca) is one that pose greatest ecological menace. Therefore, primary purpose present study to map monitor common milkweed, most Furthe...

The milkweed, Calotropis gigantea (L.) W.T. Aiton (Gentianales: Asclepiadaceae) locally known as Akond, is an evergreen, perennial shrub, and is widely distributed in sub-tropical and tropical countries. It has been reported that latices of the milkweeds including C. gigantea contain cardiac glycosides that vary in amount and type between species, between various plant parts of the same species...

842 Get-the-Lead-Out Guru Challenged 845 Greenhouse Bandwagon Rolls On 846 Jawboning Prehistory Has Challenger Knocked Out Galileo? 847 Policy-Making: Getting Better Data 848 Small Is Beautiful for University Space Outfit a In Search of a Free Launch 850 Post-Mortem on Storb Resignation A Changing of the Guards A Reprieve for MIT's Magnet Lab 851 Briefings: Gene Zapping m The Case of the Missin...