The work lays a foundation for multi-year studies of plant community change in natural ecosystems.
This investigation demonstrates the importance of multi-year studies of green roof development for the generation of robust findings.
When you cut research money, you can ask current grantees to do a little bit of economising, but past a certain point that would mean destroying the value of ongoing multi-year studies.What you do instead is stop initiating new research.
The time for multi-year studies is over.
For each study we identified the number of individuals sampled to parameterize non-reproductive terms of the matrix; if a study included more than one matrix (e.g., in multi-site or multi-year studies), we calculated the average number of individuals used.
To extract maximum value, the interested parties need to verify the accuracy and reproducibility of data and methods before the initiation of such large multi-year studies.
Variation in the timing of snow melt can be as blunt as the difference between the 100 cm of snow that melted 12th of June 2009 and the 20 cm of snow that melted with just 2 days difference (14th June a year laterr; emphasizing the need for fully replicated multi-year studies and the difficulty involved in resolving cause and effect relationships.
Further, because many bird-dispersed species in Hawaii have long fruiting seasons, and not all of these overlapped with the period of this exploratory study, year-round and multi-year studies of the temporal and spatial patterns of bird diet and seed rain are warranted.
However, the advantage of this metric is that the activity and level of engagement is better defined, and the institutional data on individual student research courses provide a stable database for multi-year studies in the entire university or within specific disciplines, as shown in the findings previously discussed.
These results revealed a more complex and changing pattern of selective harvest than the 'larger is more vulnerable' model, emphasizing the need for quantified, multi-year studies before conclusions can be drawn about potential evolutionary and ecological effects of fishery selection.
More guns means more crime, according to a massive multi-year study released last fall.
