A tropical rain forest feast

An Introduction to Tropical Rain Forests (2nd edn) by T.C. Whitmore Oxford Science Publications, 1998. ￡45 hbk, ￡19.50 pbk (224 pages) ISBN 0 19 850148 X/0 19 850147 1 Tropical Rain Forest: A Wider Perspective edited by F.B. Goldsmith Chapman and Hall (Conservation Biology Series) 1998. ￡69.00 hbk (xix+416 pages) ISBN 0 412 81510 9 Vanishing Treasures of the Philippine Rain Forest by L.R. Heaney and J.C. Rigalado Jr University of Chicago Press, 1998. ￡19.25/$24.00 pbk (96 pages) ISBN 0 91486819 5.     

Broccoli and phyletic gradualism

The Evolutionary Biology of Plants by K.J. Niklas University of Chicago Press, 1997. ￡51.95/$65.00 hbk, ￡15.95/$19.95 pbk (xix +449 pages) ISBN 0 226 58082 2/0 226 58083 0.     

A model fish

Sex, Color and Mate Choice in Guppies by Anne E. Houde Princeton University Press, Monographs in Behavior and Ecology, 1997. ￡35.00/$49.50 hbk, ￡14.95/$19.95 pbk (xii +210 pages) ISBN 0 691 02790 0 / 0 691 02789 7.     

Coping with change

Extreme Environmental Change and Evolution by A.A. Hoffmann and P.A. Parsons Cambridge University Press, 1997. ￡55.00/$74.95 hbk, ￡19.95/$29.95 pbk (xii+259 pages) ISBN 0 521 44107 2/0 521 44659 7.     

Improving biological control

Nature Wars: People vs. Pests by Mark L. Winston Harvard University Press, 1997. ￡16.50/$24.95 hbk (x +210 pages) ISBN 0 674 60541 1.     

Dinosaurs for everyone

The Complete Dinosaur edited by James O. Farlow and Michael K. Brett-Williams Indiana University Press (UK: Open University Press), 1997. ￡40.50/$59.95 hbk (752 pages) ISBN 0 253 33349 0.     

Parallel worlds converge

The Nature of Disease in Plants by R.P. Scheffer Cambridge University Press, 1997. ￡45.00/$64.95 hbk (ix +325 pages) ISBN 0 521 48247 X.     

The elusive prospect of sustainable forestry

Timber Production and Biodiversity Conservation in Tropical Rain Forests by A.G. Johns Cambridge University Press, 1997. ￡40.00/$69.95 hbk (xvii+225 pages) ISBN 0 521 57282 7.     

Alternative states in shallow lakes

Ecology of Shallow Lakes by Marten Scheffer Chapman and Hall (Population and Community Biology Series 22), 1998. ￡45.00/$79.65 hbk (xx+357 pages) ISBN 0 412 74920 3.     

Sustainable development

Perspectives on Global Change: The TARGETS Approach edited by Jan Rotmans and Bert de Vries Cambridge University Press, 1997. ￡40.00/$69.95 hbk (xv+463 pages) ISBN 0 521 62176 3.     

Natural CO(2) springs: obstacle or opportunity?

Plant Responses to Elevated Carbon Dioxide: Evidence from Natural Springs edited by A. Raschi, F. Miglietta, R. Tognetti and P.R. van Gardingen Cambridge University Press, 1997. ￡40.00/$69.95 hbk (xiv+272 pages) ISBN 0 521 58203 2.     

Stress response

Global Ecology in Human Perspective by C.H. Southwick Oxford University Press, 1996. ￡16.50 hbk (xxi +392 pages) ISBN 0 19 509867 6 Ecology: A Bridge Between Science and Society by E.P. Odum Sinauer Associates, 1997. ￡17.95 pbk (xiv +330 pages) ISBN 0 87893 630 0.     

Useful stuff

Foundations of Biophilosophy by Martin Mahner and Mario Bunge Springer-Verlag, 1997. ￡34.50/$54.00 hbk (xviii+423 pages) ISBN 3 540 61838 4.     

Ichthyological enthusiasm

Coral Reef Fishes: Caribbean, Indian Ocean, and Pacific Ocean including the Red Sea by E. Lieske and R. Myers Princeton University Press, 1996. $35.00 hbk (400 pages) ISBN 0 691 02659 9 Air-Breathing Fishes: Evolution, Diversity, and Adaptation by J.B. Graham Academic Press, 1997. $79.95 hbk (xi+299 pages) ISBN 0 12 294860 2 The Diversity of Fishes by G.S. Helfman, B.B. Collette and D.E. Facey Blackwell, 1997. ￡55.00 hbk (xii+528 pages) ISBN 0 86542 256 7.     

Rethinking tropical ecosystem management

Tropical Environments: The Functioning and Management of Tropical Ecosystems by M. Kellman and R. Tackaberry Routledge, 1997. ￡60.00 hbk, ￡18.99 pbk (xix+380 pages) ISBN 0 415 11608 2/0 415 11609 0.     

From aapa to zymogeny

A Dictionary of Ecology, Evolution and Systematics (2nd edn) by R. Lincoln, G. Boxshall and P. Clark Cambridge University Press, 1998. ￡50.00 hbk, ￡17.95 pbk (ix+361 pages) ISBN 0 521 59139 2/0 521 43843 X The Encyclopedia of Ecology and Environmental Management edited by P. Calow Blackwell Science, 1998. ￡125.00 hbk (xv+805 pages) ISBN 0 86542 838 7.     

The lessons of palaeoecology re-taught

Terrestrial Ecosystems in Changing Environments by Herman H. Shugart Cambridge University Press (Cambridge Studies in Ecology), 1998. ￡75.00 hbk, ￡27.95 pbk (xiv+537 pages) ISBN 0 521 56342 9/0 521 56523 5.     

Stability of differential susceptibility and infectivity epidemic models

We introduce classes of differential susceptibility and infectivity epidemic models. These models address the problem of flows between the different susceptible, infectious and infected compartments and differential death rates as well. We prove the global stability of the disease free equilibrium when the basic reproduction ratio R₀ ￡ 1{\mathcal{R}_0 \leq 1} and the existence and uniqueness of an endemic equilibrium when ${\mathcal{R}_0 >1 }${\mathcal{R}_0 >1 } . We also prove the global asymptotic stability of the endemic equilibrium for a differential susceptibility and staged progression infectivity model, when ${\mathcal{R}_0 >1 }${\mathcal{R}_0 >1 } . Our results encompass and generalize those of Hyman and Li (J Math Biol 50:626–644, 2005; Math Biosci Eng 3:89–100, 2006).     

All in the family

The Evolution of Sibling Rivalry by D.W. Mock and G.A. Parker Oxford University Press, 1998. $120.00 hbk, $55.00 pbk (xiii +464 pages) ISBN 0 19 857743 5/0 19 857744 3.     

Fish migration and exploitation in the Amazon

The Catfish Connection: Ecology, Migration and Conservation of Amazonian Predators by R. Barthem and M. Goulding Columbia University Press, 1997. ￡36.00 hbk (xvi+144 pages) ISBN 0 231 10832 X So Fruitful a Fish: Ecology, Conservation, and Aquaculture of the Amazon's Tambaqui by C. Araujo-Lima and M. Goulding Columbia University Press, 1997. ￡36.00 hbk (xii+191 pages) ISBN 0 231 10830 3.