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British Wildlife

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British Wildlife is the leading natural history magazine in the UK, providing essential reading for both enthusiast and professional naturalists and wildlife conservationists. Published eight times a year, British Wildlife bridges the gap between popular writing and scientific literature through a combination of long-form articles, regular columns and reports, book reviews and letters.

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Conservation Land Management (CLM) is a quarterly magazine that is widely regarded as essential reading for all who are involved in land management for nature conservation, across the British Isles. CLM includes long-form articles, events listings, publication reviews, new product information and updates, reports of conferences and letters.

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Academic & Professional Books  Evolutionary Biology  Cladistics, Phylogeny, Systematics & Taxonomy

What Species Mean A User's Guide to the Units of Biodiversity

By: Julia D Sigwart(Author)
241 pages, 22 b/w & 19 colour illustrations, 12 tables
Publisher: CRC Press
What Species Mean
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  • What Species Mean ISBN: 9781032338842 Paperback Jun 2022 Not in stock: Usually dispatched within 1-2 weeks
  • What Species Mean ISBN: 9781498799379 Hardback Oct 2018 Not in stock: Usually dispatched within 1-2 weeks
Selected version: £48.99
About this book Contents Customer reviews Biography Related titles

About this book

Everyone uses species. All human cultures, whether using science or not, name species. Species are the basic units for science, from ecosystems to model organisms. Yet, there are communication gaps between the scientists who name species, called taxonomists or systematists, and those who use species names – everyone else. What Species Mean opens the "black box" of species names, to explain the tricks of the name-makers to the name-users. Species are real, and have macroevolutionary meaning, and it follows that systematists use a broadly macroevolution-oriented approach in describing diversity. But scientific names are used by all areas of science, including many fields such as ecology that focus on timescales more dominated by microevolutionary processes. What Species Mean explores why different groups of scientists understand and use the names given to species in very different ways, and the consequences for measuring and understanding biodiversity.


1. Premise
2. General concepts
3. Everyone uses species
4. Why do the names keep changing?
5. Species are units of evolution
6. Natural patterns in classification
7. Are species real?
8. How to name a species
9. Biodiversity and extinction through time
10. How many species are there?
11. Dynamic patterns in biodiversity
12. Translating biodiversity across cultural barriers

Customer Reviews


Dr Julia D. Sigwart is the director of the Queen's University Marine Laboratory, an interdisciplinary institute for marine science in Portaferry, N. Ireland. She completed her undergraduate education at the University of Victoria, and then took up a position on the scientific staff at the American Museum of Natural History. She later moved to Ireland, to manage a research programme linking the National Museum of Ireland (Natural History) and University College Dublin. In 2009, she moved to her faculty position in Queen's University, Belfast. She has published over 70 papers on diverse topics and organisms. Her research focuses on the evolution of diversity in molluscs and other animal groups, spanning both living and fossil species.

By: Julia D Sigwart(Author)
241 pages, 22 b/w & 19 colour illustrations, 12 tables
Publisher: CRC Press
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