精簡我的查詢結果

主題 

1. Environmental sciences  (27)
2. Agriculture, Fisheries and Aquaculture  (25)
3. Biogeochemistry  (6)
4. Biology, Zoology  (3)
5. Biology, Entomology  (3)
6. Biology, Conservation  (2)
7. Biology, Genetics  (2)
8. Biology, Microbiology  (2)
9. Hydrology  (2)
10. Biology, Oceanography  (2)
11. Agriculture, Forestry and Wildlife  (2)
12. Paleoecology  (2)
13. Geology  (1)
14. Urban and Regional Planning  (1)
15. Agriculture, Soil Science  (1)
16. Economics, Environmental  (1)
17. Landscape architecture  (1)
18. Recreation  (1)
19. Environmental studies  (1)
20. 更多選項 

著者 

1. The University of Wisconsin - Madison  (6)
2. University of Waterloo (Canada)  (4)
3. State University of New York College of Environmental Science and Forestry. Environmental & Forest Biology  (4)
4. University of Michigan  (3)
5. University of California, Davis  (3)
6. University of Minnesota  (3)
7. The University of Wisconsin - Madison. Limnology & Marine Science  (2)
8. Michigan State University. Fisheries and Wildlife - Doctor of Philosophy  (2)
9. Cornell University  (2)
10. University of Northern British Columbia (Canada)  (2)
11. North Carolina State University  (2)
12. University of Missouri - Columbia  (2)
13. Michigan State University  (2)
14. Utah State University. Biology  (2)
15. University of Calgary (Canada)  (2)
16. Mississippi State University. Wildlife and Fisheries  (2)
17. Horst, Geoffrey  (1)
18. Harvard University  (1)
19. University of Georgia  (1)
20. Bond, Morgan Howard  (1)
21. 更多選項 

建立日期 

1. 之前1999  (4)
2. 1999到2001  (8)
3. 2002到2005  (18)
4. 2006到2009  (40)
5. 之後 2009  (21)
6. 更多選項