Class information for:
Level 1: URSUS MARITIMUS//POLAR BEAR//DELPHINAPTERUS LEUCAS

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
13769 814 47.1 50%


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
4 4 ENVIRONMENTAL SCIENCES//GEOSCIENCES, MULTIDISCIPLINARY//METEOROLOGY & ATMOSPHERIC SCIENCES 1766162
14 3       OCEANOGRAPHY//JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS//JOURNAL OF PHYSICAL OCEANOGRAPHY 127273
1322 2             SEA ICE//JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS//URSUS MARITIMUS 8441
13769 1                   URSUS MARITIMUS//POLAR BEAR//DELPHINAPTERUS LEUCAS 814

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 URSUS MARITIMUS authKW 3476375 18% 63% 146
2 POLAR BEAR authKW 3144572 21% 48% 173
3 DELPHINAPTERUS LEUCAS authKW 607012 5% 39% 42
4 NARWHAL authKW 440944 3% 51% 23
5 ARCTIC journal 419271 16% 9% 129
6 PHOCA HISPIDA authKW 378215 3% 46% 22
7 BEAUFORT SEA authKW 356551 6% 21% 45
8 ARCTIC COD authKW 338758 2% 53% 17
9 RINGED SEAL authKW 324156 4% 26% 33
10 POLAR COD authKW 314899 2% 44% 19

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 Biodiversity Conservation 16380 22% 0% 179
2 Ecology 10379 40% 0% 328
3 Geography, Physical 7665 16% 0% 134
4 Zoology 5192 26% 0% 214
5 Marine & Freshwater Biology 1921 15% 0% 120
6 Environmental Sciences 1540 22% 0% 180
7 Oceanography 1127 9% 0% 71
8 Fisheries 335 4% 0% 35
9 Evolutionary Biology 287 4% 0% 35
10 Biology 51 3% 0% 24

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 MARINE MAMMALS MANAGEMENT 133956 1% 36% 10
2 ALASKA SCI 122998 6% 6% 52
3 NORTH SLOPE BOROUGH 84399 0% 75% 3
4 CENT ARCTIC REG 58595 1% 16% 10
5 OURCES WILDLIFE ECON DEV 57693 1% 15% 10
6 MARINE MAMMAL 51809 4% 4% 31
7 F HWATER 50204 4% 4% 36
8 MINIST ENVIRONM PROTECT NAT OURCES 50014 0% 67% 2
9 AGE GROWTH PROGRAM 37511 0% 100% 1
10 ALASKA OUTER CONTINENTAL SHELF REG 37511 0% 100% 1

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 419271 16% 9% 129
2 POLAR BIOLOGY 122097 14% 3% 112
3 MARINE MAMMAL SCIENCE 30528 5% 2% 40
4 CANADIAN JOURNAL OF ZOOLOGY 15177 7% 1% 57
5 CANADIAN FIELD-NATURALIST 13310 4% 1% 29
6 POLAR RESEARCH 11120 2% 2% 15
7 URSUS 8122 1% 3% 8
8 JOURNAL OF MAMMALOGY 2832 2% 0% 19
9 JOURNAL OF ZOOLOGY 2569 2% 0% 19
10 CERAMICS-ART AND PERCEPTION 2499 0% 7% 1

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 URSUS MARITIMUS 3476375 18% 63% 146 Search URSUS+MARITIMUS Search URSUS+MARITIMUS
2 POLAR BEAR 3144572 21% 48% 173 Search POLAR+BEAR Search POLAR+BEAR
3 DELPHINAPTERUS LEUCAS 607012 5% 39% 42 Search DELPHINAPTERUS+LEUCAS Search DELPHINAPTERUS+LEUCAS
4 NARWHAL 440944 3% 51% 23 Search NARWHAL Search NARWHAL
5 PHOCA HISPIDA 378215 3% 46% 22 Search PHOCA+HISPIDA Search PHOCA+HISPIDA
6 BEAUFORT SEA 356551 6% 21% 45 Search BEAUFORT+SEA Search BEAUFORT+SEA
7 ARCTIC COD 338758 2% 53% 17 Search ARCTIC+COD Search ARCTIC+COD
8 RINGED SEAL 324156 4% 26% 33 Search RINGED+SEAL Search RINGED+SEAL
9 POLAR COD 314899 2% 44% 19 Search POLAR+COD Search POLAR+COD
10 HUDSON BAY 270993 4% 23% 31 Search HUDSON+BAY Search HUDSON+BAY

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 LAIDRE, KL , STIRLING, I , LOWRY, LF , WIIG, O , HEIDE-JORGENSEN, MP , FERGUSON, SH , (2008) QUANTIFYING THE SENSITIVITY OF ARCTIC MARINE MAMMALS TO CLIMATE-INDUCED HABITAT CHANGE.ECOLOGICAL APPLICATIONS. VOL. 18. ISSUE 2. P. S97-S125 96 53% 145
2 FITZGERALD, KT , (2013) POLAR BEARS: THE FATE OF AN ICON.TOPICS IN COMPANION ANIMAL MEDICINE. VOL. 28. ISSUE 4. P. 135 -142 49 94% 0
3 DEROCHER, AE , STIRLING, I , (2012) EFFECTS OF CLIMATE WARMING ON POLAR BEARS: A REVIEW OF THE EVIDENCE.GLOBAL CHANGE BIOLOGY. VOL. 18. ISSUE 9. P. 2694 -2706 55 68% 51
4 THIEMANN, GW , IVERSON, SJ , STIRLING, I , (2008) POLAR BEAR DIETS AND ARCTIC MARINE FOOD WEBS: INSIGHTS FROM FATTY ACID ANALYSIS.ECOLOGICAL MONOGRAPHS. VOL. 78. ISSUE 4. P. 591 -613 57 66% 72
5 FREITAS, C , KOVACS, KM , ANDERSEN, M , AARS, J , SANDVEN, S , SKERN-MAURITZEN, M , PAVLOVA, O , LYDERSEN, C , (2012) IMPORTANCE OF FAST ICE AND GLACIER FRONTS FOR FEMALE POLAR BEARS AND THEIR CUBS DURING SPRING IN SVALBARD, NORWAY.MARINE ECOLOGY PROGRESS SERIES. VOL. 447. ISSUE . P. 289 -304 52 71% 6
6 PEACOCK, E , DEROCHER, AE , THIEMANN, GW , STIRLING, I , (2011) CONSERVATION AND MANAGEMENT OF CANADA'S POLAR BEARS (URSUS MARITIMUS) IN A CHANGING ARCTIC.CANADIAN JOURNAL OF ZOOLOGY. VOL. 89. ISSUE 5. P. 371 -385 48 72% 22
7 PILFOLD, NW , HEDMAN, D , STIRLING, I , DEROCHER, AE , LUNN, NJ , RICHARDSON, E , (2016) MASS LOSS RATES OF FASTING POLAR BEARS.PHYSIOLOGICAL AND BIOCHEMICAL ZOOLOGY. VOL. 89. ISSUE 5. P. 377 -388 52 63% 0
8 LUNN, NJ , SERVANTY, S , REGEHR, EV , CONVERSE, SJ , RICHARDSON, E , STIRLING, I , (2016) DEMOGRAPHY OF AN APEX PREDATOR AT THE EDGE OF ITS RANGE: IMPACTS OF CHANGING SEA ICE ON POLAR BEARS IN HUDSON BAY.ECOLOGICAL APPLICATIONS. VOL. 26. ISSUE 5. P. 1302 -1320 46 65% 1
9 ANDERSEN, M , AARS, J , (2016) BARENTS SEA POLAR BEARS (URSUS MARITIMUS): POPULATION BIOLOGY AND ANTHROPOGENIC THREATS.POLAR RESEARCH. VOL. 35. ISSUE . P. - 63 49% 0
10 THIEMANN, GW , DEROCHER, AE , STIRLING, I , (2008) POLAR BEAR URSUS MARITIMUS CONSERVATION IN CANADA: AN ECOLOGICAL BASIS FOR IDENTIFYING DESIGNATABLE UNITS.ORYX. VOL. 42. ISSUE 4. P. 504 -515 39 85% 15

Classes with closest relation at Level 1


Rank Class id link
1 21532 ODOBENUS ROSMARUS//PACIFIC WALRUS//WALRUS
2 6786 URSUS ARCTOS//URSUS//URSUS AMERICANUS
3 26493 OCEAN ENVIRONM SCI BRANCH//HUDSON BAY//ST LAWRENCE ESTUARY
4 35364 SITE SPECIFIC PROPERTIES//PERINODAL ADIPOSE TISSUE//HIV RELATED ADIPOSE REDISTRIBUTION SYNDROME HARS
5 36600 RHODOSTETHIA ROSEA//ROSSS GULL//PAGOPHILA EBURNEA
6 483 PINNIPED//MIROUNGA LEONINA//MARINE MAMMAL SCIENCE
7 4179 MARINE MAMMALS//ORGANOCHLORINES//RINGED SEAL
8 8179 TRADITIONAL ECOLOGICAL KNOWLEDGE//INUIT//ARCTIC
9 4085 HUMPBACK WHALE//MEGAPTERA NOVAEANGLIAE//RIGHT WHALE
10 461 ARCTIC OCEAN//SEA ICE//JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS

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