Neural and sensory basis of homing behavior in the invasive cane toad, Rhinella marina .
| Autor: | Shaykevich DA; Department of Biology, Stanford University, Stanford, CA, USA., Pareja-Mejía D; Department of Biology, Stanford University, Stanford, CA, USA.; Graduate Program in Zoology, Universidade Estadual de Santa Cruz, Bahía, Brazil., Golde C; Department of Biology, Stanford University, Stanford, CA, USA., Pašukonis A; Institute of Biosciences, Vilnius University, Vilnius, Lithuania., O'Connell LA; Department of Biology, Stanford University, Stanford, CA, USA.; Wu Tsai Institute for Neuroscience, Stanford University, Stanford CA, USA. |
|---|---|
| Jazyk: | angličtina |
| Zdroj: | BioRxiv : the preprint server for biology [bioRxiv] 2024 Jun 25. Date of Electronic Publication: 2024 Jun 25. |
| DOI: | 10.1101/2024.06.25.600658 |
| Abstrakt: | The behavioral, sensory, and neural bases of vertebrate navigation are primarily described in mammals and birds. However, we know much less about navigational abilities and mechanisms of vertebrates that move on smaller scales, such as amphibians. To address this knowledge gap, we conducted an extensive field study on navigation in the cane toad, Rhinella marina . First, we performed a translocation experiment to describe how invasive toads in Hawai'i navigate home following displacements of up to one kilometer. Next, we tested the effect of olfactory and magnetosensory manipulations on homing, as these senses are most commonly associated with amphibian navigation. We found that neither ablation alone prevents homing, suggesting that toad navigation is multimodal. Finally, we tested the hypothesis that the medial pallium, the amphibian homolog to the hippocampus, is involved in homing. By comparing neural activity across homing and non-homing toads, we found evidence supporting the involvement of the medial pallium, lateral pallium, and septum in navigation, suggesting a conservation of neural structures supporting navigation across vertebrates. Our study lays the foundation to understand the behavioral, sensory, and neural bases of navigation in amphibians and to further characterize the evolution of behavior and neural structures in vertebrates. Competing Interests: Competing interests The authors declare no competing or financial interests. |
| Databáze: | MEDLINE |
| Externí odkaz: |
|