To some potential readers of this book the description of Biological System atics as an art
may seem outdated and frankly wrong. For most people art is subjective and unconstrained …

Chromosomal differences are frequently associated with taxonomic differences at the
species level. It has been assumed that this association in large taxonomic groups, such as …

As well as in the economy of several countries the wealth is unevenly distributed among
individual people, there is a notorious inequality in the distribution of richness in species …

Mechanisms of chromosomal change, distribution patterns, extent of genotypic, phenotypic
and ecological divergence, and nature and degree of reproductive isolation were reviewed …

The genus Proechimys is divisible into four groups of species on the basis of bullar septal
patterns. Each of the four groups can be further characterized by distinctive distributions and …

Topical literature and Web site databases provide genome sizes for∼ 4,000 animal species,
invertebrates and vertebrates, 330 of which are mammals. We provide the genome size for …

Morphometric differentiation among six chromosome races of the common shrew Sorex
araneus Linnaeus, 1758 in Poland was examined by the use of 26 orthogonal mandibular …

Size and shape changes in the skull of South American spiny rats Proechimys spp. were
investigated using geometric morphometrics. Six species were studied (P. guairae, P …

Se evalúan las sensibilidades ecológicas de una comunidad de mamíferos en un bosque
productor de maderas de la Guayana Venezolana (Reserva Forestal de Imataca, Estado …

Proechimys roberti has been considered an isolate representative of the guyannensis group
of species of the genus Proechimys in the Cerrado of central Brazil, or regarded as a …