Guatemalan beaded lizards (Helodermatidae: Heloderma charlesbogerti) navigate and follow a scent trail in maze tasks.

IF 1.1 4区 心理学 Q4 BEHAVIORAL SCIENCES
Elizabeth L Haseltine, Maisy D Englund, James L Weed, Michael J Beran, Hollyn Tao, Sarah Paschal, Joseph R Mendelson
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引用次数: 0

Abstract

Maze studies have provided substantial information about nonhuman cognition, such as insights on navigational strategies, spatial memory, and choice discriminations. This knowledge can aid in how we understand the foraging strategies of many animals, particularly understudied and endangered species, such as the Guatemalan beaded lizard (Heloderma charlesbogerti). These actively foraging lizards rely on chemoreception to locate prey, but it is unknown to what extent they engage in olfaction and vomerolfaction to hunt and navigate their environment. We investigated how Guatemalan beaded lizards moved through a physical maze. When navigating an eight-arm radial maze with all arms baited, lizards tended to turn into the immediately adjacent arm in a single direction, similar to other reptiles that have been tested in radial arm mazes. In a T-maze, the lizards had to discriminate between arms that contained scent and no-scent from a distance. They were generally unable to choose the baited (correct) arm at levels greater than chance, indicating an inability for this discrimination. With the addition of a scent trail, however, all lizards chose the baited arm at levels significantly above chance, and this increased accuracy was correlated with increased latency to make the arm choice. The lizards also demonstrated a decreased rate of tongue flicking as proximity to reward increased. Guatemalan beaded lizards can efficiently navigate a radial arm maze and can successfully use vomerolfaction with substrate-borne cues to locate prey, but they appear to have minimal olfaction abilities when sensing from a distance. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

危地马拉串珠蜥蜴(皮蜥科:Heloderma charlesbogerti)在迷宫任务中导航并追随气味线索。
迷宫研究提供了有关非人类认知的大量信息,例如有关导航策略、空间记忆和选择辨别的见解。这些知识有助于我们了解许多动物的觅食策略,尤其是研究不足的濒危物种,如危地马拉珠蜥 (Heloderma charlesbogerti)。这些积极觅食的蜥蜴依靠化学知觉来确定猎物的位置,但它们在多大程度上利用嗅觉和体视来捕食和导航环境还不得而知。我们研究了危地马拉珠蜥如何在物理迷宫中移动。当蜥蜴在所有臂都有诱饵的八臂径向迷宫中穿行时,它们倾向于沿着单一方向转入紧邻的臂,这与在径向臂迷宫中测试过的其他爬行动物类似。在T型迷宫中,蜥蜴必须从远处区分有气味的臂和没有气味的臂。它们通常无法选择有诱饵(正确)的手臂,这表明它们无法进行这种辨别。然而,在添加了气味线索后,所有蜥蜴选择有诱饵手臂的准确率都明显高于概率水平,而且准确率的提高与选择手臂的延迟时间的增加相关。蜥蜴还表现出,随着距离奖赏距离的增加,舌头弹动的频率也会降低。危地马拉珠蜥能够有效地在径向臂迷宫中导航,并能成功地利用体液嗅觉和基质传播的线索来确定猎物的位置,但在远距离感知时,它们的嗅觉能力似乎微乎其微。(PsycInfo Database Record (c) 2024 APA, 版权所有)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
3.30
自引率
7.10%
发文量
0
审稿时长
>12 weeks
期刊介绍: The Journal of Comparative Psychology publishes original research from a comparative perspective on the behavior, cognition, perception, and social relationships of diverse species.
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