1 “... the biology and ecology of wild salmon (including classification, life stages, reproduction, centres of origin...”

2 “..., and ecology of size-structured exploited fish populations. Within this model framework, different management...”

3 “..., production and use, and ecology elements of several crops (sugarcane, cassava, sorghum, common bean...”

4 “..., production and use, and ecology elements of several crops (sugarcane, cassava, sorghum, common bean...”

5 “... century, using nutrient balances with levies on surpluses as an instrument to ecologically transform...”

6 “.... It directly affects the value (economic, ecological, socio-cultural) that individuals and society obtain from...”

7 “..., on the flexibility with which agricultural production can be relocated in response to agro-ecological and market...”

8 “... research, which continues to confront new challenges, from food security to ecological concerns to land use...”