Habitat fragmentation is generally thought to be a leading cause of loss of biodiversity. In fragmented landscapes, maintenance of habitat connectivity is an important consideration in conservation planning. In this paper, we develop methods for quantifying habitat connectivity at multiple...

Like proteins, single-stranded RNA's (ssRNAs) undergo intramolecular folding into complex conformations which determine their metabolic function. We have compiled nucleotide composition data, expressed as G+A and G+U in addition to G+C content, from phylogenetically representative samples of...

The number of distinct functional classes of single-stranded RNAs (ssRNAs) and the number of sequences representing them are substantial and continue to increase. Organizing this data in an evolutionary context is essential, yet traditional comparative sequence analyses require that homologous...

No abstract received.