Biology is a science of three dimensions. The first is the study of each species across all levels of biological organization, molecule to cell to organism to population to ecosystem. The second ...

"This book is dedicated to the memory of G. Ledyard Stebbins (1906-2000), who made significant contributions to understanding systematic and evolutionary botany, and who had a major influence on all ...

Animal systematics and taxonomy constitute the scientific frameworks by which the diversity of animal life is discovered, described and organised. Taxonomy provides the rules and conventions for ...

Phylogenetic systematics is the discipline concerned with reconstructing the evolutionary relationships among organisms by analysing shared derived characteristics. It provides a framework for ...

Reflections on the history of systematics / Robert E. Kohler -- Willi Hennig's part in the history of systematics / Michael Schmitt -- Homology as a bridge between evolutionary morphology, ...

Orejuela, A., B. Villanueva, S. D. Smith & R. Deanna+. 2023. A new species of Iochroma Benth. (Solanaceae) from the eastern Andes of Colombia. Phytokeys 232: 133-144 ...

Systematics and taxonomy are complementary scientific disciplines within the biological sciences that address organismal diversity and evolutionary relationships. Systematics encompasses the study and ...

Systematic biologists, a vital ingredient in the race to identify and protect rare species before they vanish, are themselves a declining academic breed in the United States. A recent survey conducted ...

Phylogenetics, systematics, and biogeography deal with the identifying, classifying, and understanding the relationships among organisms, including their geographical extent. Methods range from ...

When Mayr outlined several species concepts, including the biological species concept in his 1942 book, he started a new era in species-problem debate. From that point on, Mayr was the major figure in ...