(Data) Bioluminecence Evolution - CER
.pdf
School
Lumpkin County High School**We aren't endorsed by this school
Course
SCIENCE 1011
Subject
Anthropology
Date
Jan 15, 2025
Pages
4
Uploaded by chandra.westafer
Bioluminescence in Nocturnal Millipedes (Motyxia)In the Sierra Nevada Mountains of California, bioluminescent millipedes exist in eight nocturnal species of the genusMotyxia. The function ofluminescence inMotyxiaremains uncertain.The essential question scientists are trying to answer is:Did luminescence evolve multiple times or just once?The figure below shows the phylogenetic tree of millipede taxa .11Marek et al. (2011) Bioluminescent aposematism in millipedes.Current Biology, 21, R680-R681.[Open access]
Essential Question: Did luminescence evolve multiple times or just once in bioluminescent millipedes?Your Claim:Your EvidenceYour ReasoningMake apredictionof one evolutionary advantage bioluminescence might serve in these nocturnal millipedesIs this an example of convergent evolution or of a descended adaptation (conserved core process) from a direct common ancestor?Place an arrowon the tree either showing a single origin or multiple origin for bioluminescence.
Bioluminescence in FirefliesFireflies (Coleoptera: Lampyridae) are one of the most common bioluminescent organisms in North America. One suggested benefits of fireflyflashing is sexual selection by females who like longer flashes and specific patterns by males. One drawback to this is predatory fireflies will prey onmales who flash too predictably or too long. Through these two constraints, there has been evolution of firefly signaling over time.2The essential question is:Did bioluminescence evolve multiple times or just once in fireflies?2Lewis, SM and Cratsley, CK (2008).Flash Signal Evolution, Mate Choice, and Predation in Fireflies. Annual Reviewof Entomology. 53:293-321
Essential Question: Did bioluminescence evolve multiple times or just once in fireflies?Your Claim:Your EvidenceYour ReasoningMake apredictionof one evolutionary advantage bioluminescence might serve in these fireflies.Is this an example of convergent evolution or of a descended adaptation (conserved core process) from a direct common ancestor?Place an arrowon the tree either showing a single origin or multiple origin for bioluminescence.