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Total Number of Tree Snails (N) 500 300 200 8888888 700 600 400 100 0 1997 1999 2001 2003 2005 Year 2007 2009 2011 2013 Figure 2. Achatinella lila captive population growth after its founding in 1997 with seven snails. The population peaked in 2009 with 668 snails and declined to less than 200 snails by 2013. Why does the population of tree snails experience a drop after the initial increase? 000 snails were not adapted to living in captivity authors attribute the increase of genetic diversity to the population drop a viral infection decimated the snail population in 2009 and consecutive years a genetic bottleneck led to reduced genetic diversity and fecundity

Total Number of Tree Snails (N) 500 300 200 8888888 700 600 400 100 0 1997 1999 2001 2003 2005 Year 2007 2009 2011 2013 Figure 2. Achatinella lila captive population growth after its founding in 1997 with seven snails. The population peaked in 2009 with 668 snails and declined to less than 200 snails by 2013. Why does the population of tree snails experience a drop after the initial increase? 000 snails were not adapted to living in captivity authors attribute the increase of genetic diversity to the population drop a viral infection decimated the snail population in 2009 and consecutive years a genetic bottleneck led to reduced genetic diversity and fecundity

Biology Today and Tomorrow without Physiology (MindTap Course List)
Biology Today and Tomorrow without Physiology (MindTap Course List)
5th Edition
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cecie Starr, Christine Evers, Lisa Starr
Chapter16: Population Ecology
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Total Number of Tree Snails (N) 500 300 200 8888888 700 600 400 100 0 1997 1999 2001 2003 2005 Year 2007 2009 2011 2013 Figure 2. Achatinella lila captive population growth after its founding in 1997 with seven snails. The population peaked in 2009 with 668 snails and declined to less than 200 snails by 2013. Why does the population of tree snails experience a drop after the initial increase? 000 snails were not adapted to living in captivity authors attribute the increase of genetic diversity to the population drop a viral infection decimated the snail population in 2009 and consecutive years a genetic bottleneck led to reduced genetic diversity and fecundity
Transcribed Image Text:Total Number of Tree Snails (N) 500 300 200 8888888 700 600 400 100 0 1997 1999 2001 2003 2005 Year 2007 2009 2011 2013 Figure 2. Achatinella lila captive population growth after its founding in 1997 with seven snails. The population peaked in 2009 with 668 snails and declined to less than 200 snails by 2013. Why does the population of tree snails experience a drop after the initial increase? 000 snails were not adapted to living in captivity authors attribute the increase of genetic diversity to the population drop a viral infection decimated the snail population in 2009 and consecutive years a genetic bottleneck led to reduced genetic diversity and fecundity
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