| We closely cooperate with Russian, European and Northamerican geobotanists and landscape ecologists. |
| The plan is signed by eminent ecologists and conservationists from around the world. |
| The paper by Monsi and Saeki provided plant ecologists with several key problems. |
| Associations of Hymenoptera with Homoptera have intrigued ecologists and evolutionary biologists as model systems of mutualism. |
| Their prescriptions, in consequence, dramatically differ from those of the deep ecologists. |
| Trawling bothers ecologists who aver that it ruins the ocean-floor habitat of many fish species. |
