一种有毒节肢动物的毒性与捕食行为之间的联系:一种多面手捕食蝎子(天蝎:蝎科)的案例。

IF 1.8 3区 医学 Q4 TOXICOLOGY
Alejandra Arroyave-Muñoz, Arie van der Meijden, Sebastián Estrada-Gómez, Luis Fernando García
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引用次数: 1

摘要

背景:蝎子是一种饮食多样的蛛形纲动物,它们使用毒液来制服猎物。与其他生物相比,对它们的营养生态学和捕获行为的研究仍然有限,并且对这一群体的营养专业化等方面的探索很少。方法:以蜘蛛、蟑螂和蟋蟀等33只不同形态和防御机制的蝎子为研究对象,研究其摄食行为与毒液毒性的关系。在每个实验中,我们记录了以下几个方面:接受率,固定时间和捕获次数。对三种不同类型猎物的中位致死量也进行了评价。结果:我们发现该物种对任何评估猎物的接受度都没有明显差异,但与其他类型的猎物相比,蜘蛛的捕获尝试次数更高。与其他猎物相比,蜘蛛的固定时间较短,蟑螂的LD50较高。结论:这些结果表明,富曼蝎是一种多食蝎子,其毒液在不同的猎物中具有不同的效力,能够区分猎物类型并采用不同的策略来制服它们。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Linking toxicity and predation in a venomous arthropod: the case of <i>Tityus fuhrmanni</i> (Scorpiones: Buthidae), a generalist predator scorpion.

Linking toxicity and predation in a venomous arthropod: the case of <i>Tityus fuhrmanni</i> (Scorpiones: Buthidae), a generalist predator scorpion.

Linking toxicity and predation in a venomous arthropod: the case of <i>Tityus fuhrmanni</i> (Scorpiones: Buthidae), a generalist predator scorpion.

Linking toxicity and predation in a venomous arthropod: the case of Tityus fuhrmanni (Scorpiones: Buthidae), a generalist predator scorpion.

Background: Scorpions are arachnids that have a generalist diet, which use venom to subdue their prey. The study of their trophic ecology and capture behavior is still limited compared to other organisms, and aspects such as trophic specialization in this group have been little explored.

Methods: In order to determine the relationship between feeding behavior and venom toxicity in the scorpion species Tityus fuhrmanni, 33 specimens were offered prey with different morphologies and defense mechanisms: spiders, cockroaches and crickets. In each of the experiments we recorded the following aspects: acceptance rate, immobilization time and the number of capture attempts. The median lethal dose of T. fuhrmanni venom against the three different types of prey was also evaluated.

Results: We found that this species does not have a marked difference in acceptance for any of the evaluated prey, but the number of capture attempts of spiders is higher when compared to the other types of prey. The immobilization time is shorter in spiders compared to other prey and the LD50 was higher for cockroaches.

Conclusions: These results indicate that T. fuhrmanni is a scorpion with a generalist diet, has a venom with a different potency among prey and is capable of discriminating between prey types and employing distinct strategies to subdue them.

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来源期刊
CiteScore
4.80
自引率
8.30%
发文量
39
审稿时长
6-12 weeks
期刊介绍: Journal of Venomous Animals and Toxins including Tropical Diseases (JVATiTD) is a non-commercial academic open access publication dedicated to research on all aspects of toxinology, venomous animals and tropical diseases. Its interdisciplinary content includes original scientific articles covering research on toxins derived from animals, plants and microorganisms. Topics of interest include, but are not limited to:systematics and morphology of venomous animals;physiology, biochemistry, pharmacology and immunology of toxins;epidemiology, clinical aspects and treatment of envenoming by different animals, plants and microorganisms;development and evaluation of antivenoms and toxin-derivative products;epidemiology, clinical aspects and treatment of tropical diseases (caused by virus, bacteria, algae, fungi and parasites) including the neglected tropical diseases (NTDs) defined by the World Health Organization.
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