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 E-Mail IMAGE: This photo shows a giant Patagonian bumblebee (Bombus dahlbomii). Four decades ago, these bees were abundant in Chile and Argentina, but now they have become an uncommon sight. view more  Credit: Eduardo E. Zattara Researchers at the Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) in Argentina have found that, since the 1990s, up to 25% of reported bee species are no longer being reported in global records, despite a large increase in the number of records available. While this does not mean that these species are all extinct, it might indicate that these species have become rare enough that no one is observing them in nature. The findings appear January 22 in the journal

United kingdomEduardo zattaraPollination ecology groupInstitute for research on biodiversityIndiana university at bloomington united statesConsejo nacional de investigaciones cientUniversidad nacional del comahueGlobal biodiversity information facilityIndiana universityUnited statesCell pressGrand challengesஒன்றுபட்டது கிஂக்டம்பாலிநேஶந் சூழலியல் குழுநிறுவனம் க்கு ஆராய்ச்சி ஆன் பல்லுயிர்இந்தியானா பல்கலைக்கழகம் இல் பூக்கும் ஒன்றுபட்டது மாநிலங்களில்