West and King and their collaborators have conducted a long term study of the ontogenetic niche of the Brown-headed Cowbird Molothrus Ater (West and King 1987; West and King 1988; West, King et al. 2006).
Shortly before my Benin Lama Forest consultancy began, the opportunity arose to conduct a long-term study, financially supported by GTZ's Tropical Ecology Support Programme, on the influence of poaching on monkeys and the secondary impacts on the vegetation in the Taï National Park in Côte d'Ivoire.
"There may be a component of overprotectiveness," said Dr. Saroj Saigal, professor of pediatrics at McMaster University in Ontario, who, like Dr. Hack, is conducting a long-term study of very-low-birth-weight babies.
"We've known for a long time that the kitchen is where the family interacts," said Jeffrey Cole, director of the Center for Communication Policy at the University of California, Los Angeles, which is conducting a long-term study of the effects of the Internet on 2,000 individuals.
"The majority of states follow a practice of dispersing young inmates in the general prison population," says Dale Parent, a project director with the research firm Abt Associates in Cambridge, Mass., which is conducting a long-term study on juveniles in state prison systems.
Now, however, biologists conducting a long-term study of the islands' unique marine iguanas say that even the relatively small amount of spilled oil caused the deaths of thousands of iguanas -- on one island, Santa Fe, the iguana population declined from 25,000 to 10,000.
Finally, to determine if the presence of elevated SAT1 and several other biomarkers that their work had flagged could predict future suicidal behavior, the group conducted a long-term study of two at-risk populations 42 men with bipolar disorder and 46 men with schizophrenia.
Nitrates from agricultural fertilizer could continue to leach into groundwater for at least 80 years after initial use, according to researchers who conducted a long-term study of nitrogen uptake.
It is therefore necessary to verify the usefulness of KIM-1 by conducting a long-term study in a large population.
Japanese authors conducted a long-term study of atomic bomb survivors and also reported elevated IgM serum concentration due to compromising of the immune system that lead to some viral antigens reactivation or to the development of autoimmune processes.
So to get a better idea of how trees respond to higher temperatures, he and his colleagues decided to conduct a long-term field study.
