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E-grāmata: Biology of Deserts [Oxford Scholarship Online E-books]

  • Formāts: 352 pages, 135 line and 90 black and white halftone illustrations
  • Sērija : Biology of Habitats
  • Izdošanas datums: 13-Nov-2008
  • Izdevniecība: Oxford University Press
  • ISBN-13: 9780199211470
Citas grāmatas par šo tēmu:
  • Oxford Scholarship Online E-books
  • Cena pašlaik nav zināma
  • Formāts: 352 pages, 135 line and 90 black and white halftone illustrations
  • Sērija : Biology of Habitats
  • Izdošanas datums: 13-Nov-2008
  • Izdevniecība: Oxford University Press
  • ISBN-13: 9780199211470
Citas grāmatas par šo tēmu:
This book offers a concise but comprehensive introduction to desert ecology and adopts a strong evolutionary focus. As with other titles in the Biology of Habitats Series, the emphasis in the book is on the organisms that dominate this harsh environment, although theoretical and experimental aspects as well as conservation and desertification are also considered
Deserts are defined by their arid conditions; a consequence of this aridity is that most of the area occupied by desert is barren and monotonous, leading many people to regard it as wasteland. However, deserts are widespread and represent surprisingly biodiverse environments, although it is the relative simplicity of these ecosystems that makes them more tractable for study than more complex environments. In these resource-poor locations, natural selection is working at its most extreme and provides some of the best-known examples of Darwinian selection.
The Biology of Deserts includes a wide range of ecological and evolutionary issues including morphological and physiological adaptations of desert plants and animals, species interactions, the importance of predation and parasitism, food webs, biodiversity and conservation. It features a balance of plant and animal (both invertebrate and vertebrate) examples, and also emphasizes topical applied issues such as desertification and invasive species. The book concludes by considering the positive aspects of desert conservation.
Each of the books in the Oxford Biology of Habitats Series introduces a different habitat, and gives an integrated overview of the design, physiology, ecology, and behaviour of the organisms found there. The practical aspects of working within each habitat, the sorts of studies that are possible, and habitat biodiversity and conservation status are all explored.
Preface vii
Introduction
1(10)
General introduction
1(1)
What creates a desert?
2(1)
Deserts have low precipitation and high variability in precipitation
2(1)
How old are deserts?
3(1)
Deserts are created by a lack of precipitation and not high temperatures
4(1)
Aridity indices
5(2)
What denies rainfall to deserts?
7(4)
Abiotic factors
11(18)
Precipitation
11(8)
Temperature
19(1)
Geology
20(7)
Fire
27(2)
Morphological and physiological adaptations of desert plants to the abiotic environment
29(37)
Classifications of desert plants
29(5)
Types of photosynthesis
34(5)
Biological soil crusts
39(1)
Annual plants
40(8)
Grasses, forbs and shrubs/perennials
48(3)
Geophytes
51(5)
Stem and leaf succulents
56(4)
Halophytes
60(2)
Phreatophytes
62(4)
Morphological, physiological, and behavioural adaptations of desert animals to the abiotic environment
66(36)
Evaders and evaporators
68(16)
Adaptations to handle unique situations
84(3)
Endurers
87(5)
Removing the effects of phylogeny
92(10)
The role of competition and facilitation in structuring desert communities
102(22)
Plant communities
102(5)
Competition between animals
107(11)
Indirect interactions: keystone species, apparent competition, and priority effects
118(6)
The importance of predation and parasitism
124(11)
Direct mortality
124(1)
Predation risk
125(1)
Isodars
126(3)
Spiders
129(2)
Scorpions
131(1)
Visually hunting predators
132(1)
Snakes, scent-hunting predators
133(2)
Keystone predation 135(134)
Animal parasites and parasitoids
137(8)
Plant--animal interactions in deserts
145(32)
Herbivory
145(13)
Pollination
158(9)
Seed dispersal and seed predation
167(3)
Are these coevolved systems?
170(7)
Desert food webs and ecosystem ecology
177(15)
Do deserts have simple food webs?
177(2)
The first supermodel---HSS
179(4)
Interactions among habitats---donor--recipient habitat interactions
183(1)
Effects of precipitation, nutrients, disturbances and decomposition
184(8)
Biodiversity and biogeography of deserts
192(25)
Are deserts species-poor? α, β, and γ diversity patterns
193(6)
Productivity--diversity relationships in deserts
199(3)
Convergence and divergence of desert communities
202(6)
Large-scale patterns in desert biogeography
208(9)
Human impacts and desertification
217(29)
The sensitive desert ecosystem: myth or reality?
217(5)
Pastoralism is the most important use of desert lands
222(15)
Military manoeuvres threaten some desert habitats and protect others
237(2)
Pumping aquifers: a problem of less water and more salinity
239(1)
An embarrassment of riches: oil extraction in desert environments
240(2)
When is it desertification? The importance of reversibility
242(4)
Conservation of deserts
246(23)
Are deserts worth conserving?
246(1)
Conservation of desert species or habitats
246(10)
The 3 Rs: reintroduction, recolonization, and revegetation
256(5)
The coalface of evolution---genotype by environment interactions
261(3)
Who gets to pay for this conservation and how is it controlled?
264(3)
Conclusions
267(2)
References 269(48)
Index 317
Professor David Ward obtained his PhD in 1987 from the University of Natal, South Africa. After working in Israel and Canada he is now back in South Africa, where he is Chair of Botany at the University of KwaZulu-Natal. His research interests lie in the field of the ecology and genetics of plant-animal interactions, and he has published 130 scientific articles in international journals. He is an Editorial Board Member for the Journal of Vegetation Science and Applied Vegetation Science.