Class information for:
Level 1: TUNDRA//ARCTIC TUNDRA//ITEX

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
2615 2194 51.8 59%


Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
3 4 PLANT SCIENCES//AGRONOMY//FOOD SCIENCE & TECHNOLOGY 1882812
15 3       ECOLOGY//FORESTRY//BIODIVERSITY CONSERVATION 124126
859 2             SYNTAXONOMY//PHYTOSOCIOLOGY//JOURNAL OF VEGETATION SCIENCE 11608
2615 1                   TUNDRA//ARCTIC TUNDRA//ITEX 2194

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 TUNDRA authKW 1017331 8% 40% 182
2 ARCTIC TUNDRA authKW 414185 3% 49% 61
3 ITEX authKW 289906 1% 83% 25
4 ARCTIC ANTARCTIC AND ALPINE RESEARCH journal 287135 7% 14% 149
5 SHRUB EXPANSION authKW 243795 1% 60% 29
6 ARCTIC AND ALPINE RESEARCH journal 194668 5% 13% 108
7 TUSSOCK TUNDRA authKW 187855 1% 75% 18
8 ARCTIC authKW 174871 10% 6% 218
9 TUNDRA VEGETATION authKW 173402 1% 69% 18
10 ARCTIC BIOL address 127153 6% 7% 137

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with term
in class
1 Ecology 41022 49% 0% 1065
2 Environmental Sciences 10434 34% 0% 742
3 Geography, Physical 9668 11% 0% 249
4 Biodiversity Conservation 9537 10% 0% 227
5 Plant Sciences 5731 23% 0% 512
6 Geography 2897 6% 0% 121
7 Forestry 2796 7% 0% 144
8 Soil Science 1164 5% 0% 102
9 Remote Sensing 1152 3% 0% 72
10 Meteorology & Atmospheric Sciences 1017 7% 0% 147

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 ARCTIC BIOL 127153 6% 7% 137
2 AN SEVERTSOV EVOLUTIONARY MORPHOL ANIM ECOL 126506 0% 91% 10
3 PL ALPINE ECOL 125225 1% 50% 18
4 ALASKA GEOBOT 120268 1% 79% 11
5 GLOBAL CHANGE GRP 118111 1% 28% 30
6 ECOSYST 105323 5% 7% 105
7 MAORI INDIGENOUS PLANNING DEV 102468 0% 82% 9
8 SHEFFIELD ARCTIC ECOL 74530 1% 36% 15
9 PHYSIOL ECOL GRP 57343 1% 32% 13
10 PERMAFROST CENPERM 57057 1% 22% 19

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 ARCTIC ANTARCTIC AND ALPINE RESEARCH 287135 7% 14% 149
2 ARCTIC AND ALPINE RESEARCH 194668 5% 13% 108
3 HOLARCTIC ECOLOGY 58927 2% 9% 46
4 GLOBAL CHANGE BIOLOGY 50442 6% 3% 122
5 ALPINE BOTANY 27975 1% 15% 13
6 JOURNAL OF VEGETATION SCIENCE 24465 3% 3% 68
7 PLANT ECOLOGY & DIVERSITY 20694 1% 6% 23
8 ENVIRONMENTAL RESEARCH LETTERS 20428 3% 3% 56
9 JOURNAL OF ECOLOGY 20400 3% 2% 73
10 POLAR RESEARCH 16487 1% 4% 30

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 TUNDRA 1017331 8% 40% 182 Search TUNDRA Search TUNDRA
2 ARCTIC TUNDRA 414185 3% 49% 61 Search ARCTIC+TUNDRA Search ARCTIC+TUNDRA
3 ITEX 289906 1% 83% 25 Search ITEX Search ITEX
4 SHRUB EXPANSION 243795 1% 60% 29 Search SHRUB+EXPANSION Search SHRUB+EXPANSION
5 TUSSOCK TUNDRA 187855 1% 75% 18 Search TUSSOCK+TUNDRA Search TUSSOCK+TUNDRA
6 ARCTIC 174871 10% 6% 218 Search ARCTIC Search ARCTIC
7 TUNDRA VEGETATION 173402 1% 69% 18 Search TUNDRA+VEGETATION Search TUNDRA+VEGETATION
8 CASSIOPE TETRAGONA 117869 1% 71% 12 Search CASSIOPE+TETRAGONA Search CASSIOPE+TETRAGONA
9 INTERNATIONAL TUNDRA EXPERIMENT 111327 0% 100% 8 Search INTERNATIONAL+TUNDRA+EXPERIMENT Search INTERNATIONAL+TUNDRA+EXPERIMENT
10 SNOWBED 106889 1% 59% 13 Search SNOWBED Search SNOWBED

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.


Rank Reference # ref.
in cl.		 Shr. of ref. in
cl.		 Citations
1 MYERS-SMITH, IH , FORBES, BC , WILMKING, M , HALLINGER, M , LANTZ, T , BLOK, D , TAPE, KD , MACIAS-FAURIA, M , SASS-KLAASSEN, U , LEVESQUE, E , ET AL (2011) SHRUB EXPANSION IN TUNDRA ECOSYSTEMS: DYNAMICS, IMPACTS AND RESEARCH PRIORITIES.ENVIRONMENTAL RESEARCH LETTERS. VOL. 6. ISSUE 4. P. - 85 69% 185
2 ZAMIN, TJ , BRET-HARTE, MS , GROGAN, P , (2014) EVERGREEN SHRUBS DOMINATE RESPONSES TO EXPERIMENTAL SUMMER WARMING AND FERTILIZATION IN CANADIAN MESIC LOW ARCTIC TUNDRA.JOURNAL OF ECOLOGY. VOL. 102. ISSUE 3. P. 749-766 70 71% 10
3 OBERBAUER, SF , TWEEDIE, CE , WELKER, JM , FAHNESTOCK, JT , HENRY, GHR , WEBBER, PJ , HOLLISTER, RD , WALKER, MD , KUCHY, A , ELMORE, E , ET AL (2007) TUNDRA CO2 FLUXES IN RESPONSE TO EXPERIMENTAL WARMING ACROSS LATITUDINAL AND MOISTURE GRADIENTS.ECOLOGICAL MONOGRAPHS. VOL. 77. ISSUE 2. P. 221 -238 57 88% 108
4 MYERS-SMITH, IH , HALLINGER, M , BLOK, D , SASS-KLAASSEN, U , RAYBACK, SA , WEIJERS, S , TRANT, AJ , TAPE, KD , NAITO, AT , WIPF, S , ET AL (2015) METHODS FOR MEASURING ARCTIC AND ALPINE SHRUB GROWTH: A REVIEW.EARTH-SCIENCE REVIEWS. VOL. 140. ISSUE . P. 1 -13 61 68% 10
5 ELMENDORF, SC , HENRY, GHR , HOLLISTER, RD , BJORK, RG , BJORKMAN, AD , CALLAGHAN, TV , COLLIER, LS , COOPER, EJ , CORNELISSEN, JHC , DAY, TA , ET AL (2012) GLOBAL ASSESSMENT OF EXPERIMENTAL CLIMATE WARMING ON TUNDRA VEGETATION: HETEROGENEITY OVER SPACE AND TIME.ECOLOGY LETTERS. VOL. 15. ISSUE 2. P. 164 -175 44 67% 170
6 ZAMIN, TJ , GROGAN, P , (2012) BIRCH SHRUB GROWTH IN THE LOW ARCTIC: THE RELATIVE IMPORTANCE OF EXPERIMENTAL WARMING, ENHANCED NUTRIENT AVAILABILITY, SNOW DEPTH AND CARIBOU EXCLUSION.ENVIRONMENTAL RESEARCH LETTERS. VOL. 7. ISSUE 3. P. - 51 86% 17
7 EDWARDS, M , HENRY, GHR , (2016) THE EFFECTS OF LONG-TERM EXPERIMENTAL WARMING ON THE STRUCTURE OF THREE HIGH ARCTIC PLANT COMMUNITIES.JOURNAL OF VEGETATION SCIENCE. VOL. 27. ISSUE 5. P. 904 -913 48 91% 0
8 KLADY, RA , HENRY, GHR , LEMAY, V , (2011) CHANGES IN HIGH ARCTIC TUNDRA PLANT REPRODUCTION IN RESPONSE TO LONG-TERM EXPERIMENTAL WARMING.GLOBAL CHANGE BIOLOGY. VOL. 17. ISSUE 4. P. 1611 -1624 50 85% 31
9 BELSHE, EF , SCHUUR, EAG , BOLKER, BM , (2013) TUNDRA ECOSYSTEMS OBSERVED TO BE CO2 SOURCES DUE TO DIFFERENTIAL AMPLIFICATION OF THE CARBON CYCLE.ECOLOGY LETTERS. VOL. 16. ISSUE 10. P. 1307 -1315 55 71% 24
10 FRASER, RH , LANTZ, TC , OLTHOF, I , KOKELJ, SV , SIMS, RA , (2014) WARMING-INDUCED SHRUB EXPANSION AND LICHEN DECLINE IN THE WESTERN CANADIAN ARCTIC.ECOSYSTEMS. VOL. 17. ISSUE 7. P. 1151 -1168 53 74% 10

Classes with closest relation at Level 1


Rank Class id link
1 27220 SOIL FROST//WINTER CLIMATE CHANGE//SOIL FREEZING
2 2327 PERMAFROST//PERMAFROST AND PERIGLACIAL PROCESSES//ACTIVE LAYER
3 26014 FEATHER MOSSES//PLEUROZIUM SCHREBERI//BIOL PROBLEMS CRYOLITHZONE
4 9838 TREELINE//TIMBERLINE//ALPINE TREELINE
5 37717 HERB CHRONOLOGY//PERENNIAL FORBS//SECONDARY ROOT XYLEM
6 19383 PRIMARY SUCCESSION//MOUNT USU//GLACIER FORELAND
7 8142 JORNADA BASIN LONG TERM ECOL PROGRAM//PRECIPITATION MANIPULATION//RAINOUT SHELTER
8 26169 REINDEER HUSBANDRY//CULTURALLY MODIFIED TREES//BARK PEELING
9 17474 ORGANIC NITROGEN//SOIL AMINO ACIDS//ORGANIC N
10 25820 OVIBOS MOSCHATUS//MUSKOXEN//MUSKOX

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