Proposals:
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1988: Long-Term Ecological Research (LTER) on the Luquillo Experimental Forest (LEF)
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1994: LTER on the LEF II
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2000: LTER on the LEF III
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2002: LTER on the LEF IIIb
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2006: Understanding Change in Ecosystems of Northeast Puerto Rico
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2015: Understanding ecosystem change in Northeastern Puerto Rico
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2018: Understanding ecosystem change in Northeastern Puerto Rico