In the last half of the 20th century, therefore, all these driving forces had heavy impacts on the ecosystem and their effects are difficult to disentangle and might necessarily be considered together for explaining the observed community changes.
Economic development has heavier impact on the distribution of invasive species in the economies with higher levels of economic development (Figure 1) (Table 4, 5, 6, 7, Table S3, S4, S5, S6).
The emotional context of the booklet is also invoked by explicitly noting in the text that cancer is scary, and that treatment side effects may have heavy emotional impact.
Over the past few years Ecuador has slowly emerged from a deep political, economic, and social crisis that has had a heavy impact on all sectors, with vulnerable groups being the hardest hit.
Climate warming and heavy livestock grazing are known to have great impacts on alpine ecosystems.
"They have heavy weapons.
Neil Lennon had played down the notion that success or failure in the Scottish Cup final would have a heavy impact on the level of faith bestowed on him by the Celtic board.
Credit inquiries don't have a heavy impact on credit scores, but applying for multiple credit cards or loans can signal to lenders that you are having financial trouble.
To hear his new teammates speak of him, Malakhov will have a heavy impact on the Devils' drive into the playoffs.
The global economic, food, and energy predicaments continued to have a heavy impact on most countries, with the world's poor being hit the hardest.
The global economic, food, and energy predicaments continued to have a heavy impact on most countries in 2012, with the world's poor being the hardest hit.
