Third book review of Klaus Rohde ed., The Balance of Nature and Human Impact, Cambridge University Press 2013.Thursday, April 23rd, 2015
The third review of the book edited by me has just been published in Biological Conservation 182, 281-283 (February 2015)
Reviewer is Brian Drayton, TERC Cambridge, MA, USA, who gave me permission to use excerpts from his review.
For earlier reviews see here:
This latest review covers two books:
Green Equilibrium: The Vital Balance of Humans and Nature, Christopher Wills. Oxford University Press (2013). xxviii+280 pp.,
and The Balance of Nature and Human Impact, Klaus Rohde (Ed.) Cambridge University Press (2013). xvi+413 pp.
Excerpts dealing with the book edited by me follow:
“These two books make good companions, and it is instructive to read them side by side. In doing so, the reader can reflect upon a central challenge to conservation science, and to the societies within which it carries out its business.”
“Klaus Rohde’s fascinating edited volume The Balance of Nature and Human Impact offers a snapshot of current research, exploring
evidence for or against equilibrium processes from an array of systems, interspersed with reviews of literature on selected topics. A brief gallop through the table of contents can only suggest its wealth of provocative entries.
Part I: ‘‘Nonequilibrium and equilibrium in populations and metapopulations’’ examines reef fishes ……..
ectoparasites on terrestrial hosts …….. and marine parasites. Part II: “Nonequilibrium and equilibrium in communities’’ examines plankton communities ……, community stability in relation to fire ……., marine and freshwater ectoparasite communities ….. and small mammal ectoparasites …. , and bird populations and communities. Part III addresses ‘‘Nonequilibrium and equilibrium on geographical scales’’ in the context of island flora and fauna …… and arctic vascular plant diversity and spatial variation ……… Part IV: ‘‘Latitudinal gradients’’ focuses on diversity gradients…..reviews the literature providing evidence for and against equilibrium and nonequilibrium explanations,” and ‘‘effective evolutionary time.’’
Part V: ‘‘Effects due to invasive species, habitat loss and climate change’’ is by far the largest section. …….. the section marks a transition, as all the rest of the book looks at ‘‘biocomplex’’ (coupled humannonhuman)systems—where the nonhuman component may include insects … coral reefs ….. , emerging infectious diseases ……., human impacts on biodiversity …… , amphibians …….. , and reptiles ……. Part VI: ‘‘Autecological studies’’ comprises two articles: ‘‘Autecology and the balance of nature—ecological laws and human-induced invasions’’ …… and ‘‘The intricacy of structural and ecological adaptations: micromorphology and ecology of some Aspidogastrea’’.
Part VII: ‘‘An overall view’’ sets much of the foregoing into a larger theoretical and practical context, coming back to the
challenges faced by conservation biology in a world in at least one kind of chronic disequilibrium: anthropogenic climate change. Rohde discusses interspecific competition as a regulator of communities, and the status of evolutionarily stable strategies. Finally, Rohde and co-authors discuss ‘‘How to conserve biodiversity in a nonequilibrium world.’’ Here we come to the crux of the matter. As Wallington et al. (2005) argue, much conservation strategy betrays an underlying ‘‘balance’’ orientation, which often takes the form of creating reserves and assuming that they will ‘‘do the job’’……….; or of reintroducing species or otherwise restoring a system, and then assuming that short-term success will last (also not a safe assumption……………. Rohde et al. argue cogently that in the world we now inhabit, equilibrium assumptions will result in deep design weaknesses in many conservation strategies, and the kind of reflective research represented by this volume as a whole must result in substantial innovation.”
“Both books under review make the case ……. that the unexamined assumption of ‘‘balance’’ has contributed to many of our current ecological crises, and inhibits proper responses to them. In some cases, a naive reading of ‘‘balance’’ contributes to the assumption that in time, any disturbance caused by human activities will be remedied by Nature as it comes back into balance. In other cases, the ‘‘balance of nature’’ is reified without sufficient understanding of ecological systems and their dynamics, so that intended remedies result in further, different disturbance or even system transformation. Our challenge …….. is to convey a much richer, but perhaps just as satisfying, understanding of the way things work, and the implications of that understanding for what conservation must become. As Donald Worster (1994) wrote in his seminal treatment: ‘‘It is a pattern of behavior based on the idea that preserving a diversity of change ought to stand high in our system of values, that promoting the coexistence of many beings and many kinds of change is a rational thing to do. . . .Such a strategy of trying to conserve a diversity of changes may seem paradoxical, but it is founded on a crucial and reasonable insight. We may have to live with change, may even be the products of change, but we do not always know—indeed, we cannot always know—which changes are vital and which are deadly.’’