“When not protected by law, by popular favor or superstition, or by other special circumstances, [birds] yield very readily to the influences of civilization, and, though the first operations of the settler are favorable to the increase of many species, the great extension of rural and of mechanical industry is, in a variety of ways, destructive even to tribes not directly warred upon by man.” MenWayFirstsLawScienceInfluenceSpecialIndustryCircumstancesCivilizationBirdIncreaseSpeciesFavorsVarietyOperationsDestructiveYieldSuperstitionsProtectedAgricultureTribesExtensionsSettlers Book:So Great a Vision: The Conservation Writings of George Perkins Marsh Source: So Great a Vision: The Conservation Writings of George Perkins Marsh
“Apart from the hostile influence of man, the organic and the inorganic world are ... bound together by such mutual relations and adaptations s secure, if not the absolute permanence and equilibrium of both ... at least a very slow and gradual succession of changes in those conditions. But man is everywhere a disturbing agent. Wherever he plants his foot, the harmonies of nature are turned to discords.” IfsMenWorldTogetherScienceNatureFeetInfluenceConditionsRelationAbsolutesHarmonyPlantBoundsSecureAgentsMutualHostileAdaptationDisturbingSuccessionEquilibriumPermanenceDiscord Author:George Perkins Marsh
