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Population level genetic differentiation among temperate neoconocephalus katydids
(University of Missouri--Columbia, 2017)
Recent work indicates that radiation events may play a significant role in shaping species diversity across entire continents. Here we quantify population level genetic differentiation in several species of Neoconocephalus ...
Stimulus specific adaptation in the hearing system of Neoconocephalus katydids (insecta: Orthoptera)
(University of Missouri--Columbia, 2017)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Stimulus Specific Adaptation (SSA) is a fundamental response that identifies novel signals within a repetitive background noise. It is well characterized ...
Call synchrony and the evolutionary origins of leader preference in Neoconocephalus ensiger katydids /
(University of Missouri--Columbia, 2016)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Many species of acoustically communicating insects and anurans display a female preference for males producing their calls just ahead of those of their ...
The evolution of complex calls In meadow Katydids
(University of Missouri--Columbia, 2018)
Meadow Katydids (genera Orchelimum and Conocephalus) are a specious group often are found in habitats with several species within the group living in sympatry. They produce complex calls with two distinct phrases, "buzzing" ...
Mechanisms of call recognition in three sympatric species of Neoconocephalus (Orthoptera: Tettigoniidae) : asymmetrical interactions and evolutionary implications
(University of Missouri--Columbia, 2006)
Scientists have debated the hypothesis of reinforcement. Nevertheless, recent empirical and theoretical work have dispelled doubts about its existence. Reinforcement is most often studied by establishing one of its predicted ...
Evolution of signal frequency in Neoconocephalus (Orthoptera: Tettigoniidae) : a study of perceptual and environmental sources of selection
(University of Missouri--Columbia, 2007)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Mate-attraction signals offer an ideal opportunity to examine the sources of selection that shape traits and trait diversity, as they are very diverse ...
The evolutionary significance of developmental plasticity in the communication system of Neoconocephalus triops (Orthoptera: tettigoniidae)
(University of Missouri--Columbia, 2008)
The katydid Neoconocephalus triops is a tropical species that extended its distribution range to North America. In North America, males display developmental plasticity in mating calls between reproductive generations: the ...
Bat avoidance in the katydid genus Neoconocephalus
(University of Missouri--Columbia, 2010)
The hearing system of the katydid genus Neoconocephalus has two functions: intraspecific communication and predator (bat) avoidance. Male calls and bat cries differ spectrally and temporally. Katydids must recognize and ...
Sensory processing and the evolution of female preference in Neoconocephalus
(University of Missouri--Columbia, 2013)
While the importance of the female preference for exaggerated male traits is largely understood, the evolutionary origins remain under debate. During the evolution of the female preference for leading signals via a sensory ...
Investigating an adaptive radiation in temperate Neoconocephalus
(University of Missouri--Columbia, 2013)
Evolution of communication system is seemingly complex requiring coevolution between sender and receiver mechanisms. Studying acoustic communication in the katydid genus Neoconocephalus (coneheaded katydids), I compare ...