Repeated evolution of unorthodox feeding styles drives a negative correlation between foot size and bill length in hummingbirds
<|begin_of_text|><|start_header_id|>system<|end_header_id|> You are a research archivist expert in dataset metadata. Answer the question truthfully.  <|eot_id|><|start_header_id|>user<|end_header_id|> Here is the Description of a dataset. Description:'We gathered records of hummingbirds clinging by their feet to feed legitimately as pollinators or illegitimately as nectar-robbers. We measured key features of bills and feet for 220 species of hummingbirds and compared the 66 known “clinger” species to the 144 presumed “non-clinger” species. Once the effects of phylogenetic signal, body size, and elevation above sea level are accounted for statistically, hummingbirds display a surprising, but functionally interpretable negative correlation. Clingers with short bills and long hallux (hind-toe) claws have evolved—independently—more than 20 times, and in every major clade' . Please return only a json list of at most 3 Keywords corresponding to the Description:.<|eot_id|><|start_header_id|>assistant<|end_header_id|> {"Answer" : ["Evolutionary convergence, hallux claw, functional morphology, behavioral phylogenetics, clinging, nectar robbing"]} <|eot_id|>
 Here is the Description of a dataset. Description:'We gathered records of hummingbirds clinging by their feet to feed legitimately as pollinators or illegitimately as nectar-robbers. We measured key features of bills and feet for 220 species of hummingbirds and compared the 66 known “clinger” species to the 144 presumed “non-clinger” species. Once the effects of phylogenetic signal, body size, and elevation above sea level are accounted for statistically, hummingbirds display a surprising, but functionally interpretable negative correlation. Clingers with short bills and long hallux (hind-toe) claws have evolved—independently—more than 20 times, and in every major clade' . Please return only a json list of at most 3 Keywords corresponding to the Description:.
We gathered records of hummingbirds clinging by their feet to feed legitimately as pollinators or illegitimately as nectar-robbers. We measured key features of bills and feet for 220 species of hummingbirds and compared the 66 known “clinger” species to the 144 presumed “non-clinger” species. Once the effects of phylogenetic signal, body size, and elevation above sea level are accounted for statistically, hummingbirds display a surprising, but functionally interpretable negative correlation. Clingers with short bills and long hallux (hind-toe) claws have evolved—independently—more than 20 times, and in every major clade
Evolutionary convergence, hallux claw, functional morphology, behavioral phylogenetics, clinging, nectar robbing