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090			_aB-18398
245	1	0	_aGroundwater microbial diversity and antibiotic resistance linked to human population density in Yucatan Peninsula, Mexico
490	0		_vCanadian Journal of MicroBiology, 66(1), p.46-58., 2020
520	3		_aMicrobial community composition in selected karst groundwater sites in the Yucatan Peninsula, Mexico, was assessed to determine the environmental variables influencing groundwater microbial diversity. The karst aquifer system is a groundwater-dependent ecosystem and is the world's second largest underwater karst cave system. The area's geology allows precipitation to infiltrate into the groundwater system and prevents accumulation of surface water; as such, groundwater is the only source of fresh water on the peninsula. The sampling locations consisted of three karst sinkholes that extend through the freshwater zone into the saline water, and an abandoned drinking water well of an ocean-side resort, during the dry and rainy seasons. The analysis showed that highly diverse microbial communities are present in the Yucatan groundwater, sustained by permanently warm temperatures and high nutrient input from human activity. Proximity to densely populated areas, such as tourist resorts, is the most important factor influencing both the diversity and presence of fecal bacteria and the antibiotic resistance profile.
650	1	4	_aMICROBIAL COMMUNITIES
650	1	4	_aKARST
650	1	4	_aGROUNDWATER
650	1	4	_aANTIBIOTIC RESISTANCE
700	1	2	_aMoore, A.
700	1	2	_aLenczewski, M.
700	1	2	_aLeal-Bautista, R. M.
700	1	2	_aDuvall, M.
856	4	0	_uhttps://drive.google.com/file/d/18MCyqf9zQN4Fnga7oKq5_0h2heW2k0wi/view?usp=drivesdk _zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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