LEADER 04514nam 22005053u 450 001 9910779046803321 005 20230802004658.0 010 $a1-280-59502-7 010 $a9786613624857 010 $a0-19-162424-1 035 $a(CKB)2550000000089403 035 $a(EBL)886493 035 $a(OCoLC)777262808 035 $a(MiAaPQ)EBC886493 035 $a(EXLCZ)992550000000089403 100 $a20130418d2012|||| u|| | 101 0 $aeng 200 14$aThe Ecology of Snow and Ice Environments$b[electronic resource] 210 $aOxford $cOUP Oxford$d2012 215 $a1 online resource (199 p.) 300 $aDescription based upon print version of record. 311 $a0-19-958308-0 327 $aCover; Contents; Abbreviations; 1. An introduction to ice environments and their biology; 1.1 Introduction; 1.2 Introduction to functional dynamics and the organisms; 1.2.1 Community structure and function; 1.2.2 Organisms; 1.3 The cryosphere: past and present; 1.3.1 The last glacial maximum; 1.3.2 Contemporary fluctuations of glaciers and ice sheets; 1.3.3 Snowball Earth; 1.4 Sea ice; 1.4.1 Nature of sea ice; 1.4.2 Sea ice communities; 1.5 Lake ice; 1.6 Glaciers; 1.6.1 Ice mass balance zones in glacial ecosystems; 1.6.2 Hydrological zonation in surface ecosystems; 1.6.3 Supraglacial lakes 327 $a1.6.4 Water distribution in subsurface ecosystems 1.6.5 Water in subglacial habitats; 1.6.6 Overview: broad structure and characteristics of glacial ecosystems; 1.6.7 Life on glaciers; 1.7 Snow; 1.7.1 Physical and chemical characteristics; 1.7.2 Biological activity in snow; 2. Snow; 2.1 Snow as an environment; 2.2 Life on and in snow; 2.2.1 Snow algae; 2.2.2 Bacteria in snow; 2.3 Impact of snow on environments it covers seasonally; 2.3.1 Activity under the snow; 2.3.2 Impact of the release of accumulated nutrients in the snow pack at spring melt; 2.3.3 Variations in snow depth 327 $a3. Ice surface environments 3.1 Ice shelves; 3.1.1 Introduction; 3.1.2 Biology of ice shelf lakes; 3.2 Glaciers and ice sheets; 3.2.1 Supraglacial habitats; 3.2.2 Spatial variations in the biota in supraglacial habitats; 3.2.3 Cryoconite; 3.2.4 Carbon cycling and biological production; 3.2.5 Other debris habitats, including the ice margin; 4. Sea and lake ice; 4.1 Sea ice; 4.1.1 Introduction; 4.1.2 Adaptations; 4.1.3 Community structure and production; 4.2 Lake ice; 4.2.1 Introduction; 4.2.2 Community structure and production; 5. Subglacial environments; 5.1 Introduction 327 $a5.2 Biology of subglacial environments 5.2.1 Wet-based glaciers; 5.2.2 Blood Falls; 5.3 Life in glacial ice; 5.4 Subglacial lakes; 5.5 Lake Vida; 6. Astrobiology; 6.1 Introduction; 6.2 Extraterrestrial cryospheric environments; 6.2.1 Mars; 6.2.2 Europa: a Jovian moon; 6.2.3 Enceladus: a small Saturnian moon; 6.2.4 Titan: a large Saturnian moon; 6.3 Weaknesses of terrestrial analogues for extraterrestrial cryospheric environments; 7. Future directions; 7.1 Introduction; 7.2 Priority field sites for future research; 7.3 Remote sensing development; 7.4 Sensor technology; 7.5 Modelling 327 $a7.6 Molecular biology7.7 Elucidating the evolution of extremophile communities; Glossary; A; B; C; D; E; F; H; I; K; L; M; N; O; P; R; S; T; U; V; W; References; Index; A; B; C; D; E; F; G; H; I; J; K; L; M; N; O; P; Q; R; S; T; U; V; W; X; Z 330 $aSnow and ice environments support significant biological activity, yet the biological importance of some of these habitats, such as glaciers, has only recently gained appreciation. Collectively, these ecosystems form a significant part of the cryosphere, most of which is situated at high latitudes. These ice environments are important sentinels of climate change since the polar regions are presently undergoing the highest rates of climate warming, resulting in very marked changes in the extent of ice caps, glaciers, and the sea ice. Glacial systems are also regarded as an analogue for astrobiology 606 $aGlaciology 606 $aIce sheets 606 $aSnow ecology 615 4$aGlaciology. 615 4$aIce sheets. 615 4$aSnow ecology. 676 $a577.586 700 $aLaybourn-Parry$b Johanna$0531531 701 $aTranter$b Martyn$01546235 701 $aHodson$b Andrew J$01546236 801 0$bAU-PeEL 801 1$bAU-PeEL 801 2$bAU-PeEL 906 $aBOOK 912 $a9910779046803321 996 $aThe Ecology of Snow and Ice Environments$93801669 997 $aUNINA