Founder’s Briefs: An occasional series where Mongabay founder Rhett Ayers Butler shares analysis, perspectives and story summaries. In a lowland forest in southeastern Madagascar, what was missing proved as telling as what was found. Researchers working in the Manombo Special Reserve trapped tufted-tailed rats in intact interior forest. But in the nearby degraded littoral areas, their traps never caught the endemic rodents. Instead, black rats, …