Cellular and biochemical parameters following autotomy and ablation-mediated cheliped loss in the Chinese mitten crab, Eriocheir sinensis

Yang, Xiaozhen; Zhang, Cong; Huang, Genyong; Xu, Minjie; Cheng, Yongxu; Yang, Ziyi; Zhang, Qian; Wang, Yiyue

doi:10.1016/j.dci.2017.11.003

Cited by 22 publications

(28 citation statements)

References 67 publications

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“…For instance, biochemical changes at the cellular level were studied in the Chinese mitten crab ( Eriocheir sinensis ), where Yang et al . () found an increase in the concentration of several metabolic compounds after induced cheliped autotomy. This was suggested to be an efficient response to trauma when compared to regular ablation, as autotomized individuals recovered initial levels earlier than ablated individuals (Yang et al, ).…”

Section: Variation In the Costs And Benefits Of Autotomymentioning

confidence: 92%

“…The survival difference that comes with autotomizing injured body parts at a predetermined breakage plane is likely due to ( i ) a reduction in the amount of blood that is lost, and/or ( ii ) having a less‐compromised immune system. Previous research has found support for both these mechanisms: blood loss following autotomy is negligible (Wake & Dresner, ; Foelix, ; Lesiuk & Drewes, ; Wilkie, ) and the immune system of recently autotomized individuals is less compromised than those that have been injured (Yang et al, ). Envenomation is another source of injury, during which the predator punctures the outer layer of its prey and injects it with a toxin to debilitate or kill.…”

Section: Variation In the Costs And Benefits Of Autotomymentioning

confidence: 96%

“…() found an increase in the concentration of several metabolic compounds after induced cheliped autotomy. This was suggested to be an efficient response to trauma when compared to regular ablation, as autotomized individuals recovered initial levels earlier than ablated individuals (Yang et al, ). Regeneration after autotomy also has costs (Maginnis, ).…”

Section: Variation In the Costs And Benefits Of Autotomymentioning

confidence: 97%

“…Autotomy can also be used to reduce the cost of (externally induced) injury, which can occur from predatory encounters or intraspecific competition. Possessing an injured limb makes an individual susceptible to blood loss and infection, as does autotomy (Slos, De Block, & Stoks, ; Yang et al, ). However, in terms of survival, injury is more costly than autotomy (Emberts et al, ; Yang et al, ).…”

Section: Variation In the Costs And Benefits Of Autotomymentioning

confidence: 99%

“…Possessing an injured limb makes an individual susceptible to blood loss and infection, as does autotomy (Slos, De Block, & Stoks, ; Yang et al, ). However, in terms of survival, injury is more costly than autotomy (Emberts et al, ; Yang et al, ). This cost differential makes it possible for individuals to gain a survival benefit by autotomizing their injured body parts, and experimental manipulations have found support for this hypothesis (Emberts et al, ).…”

Section: Variation In the Costs And Benefits Of Autotomymentioning

confidence: 99%

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The ecology and evolution of autotomy

2019

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Autotomy, the self-induced loss of a body part, occurs throughout Animalia. A lizard dropping its tail to escape predation is an iconic example, however, autotomy occurs in a diversity of other organisms. Octopuses can release their arms, crabs can drop their claws, and bugs can amputate their legs. The diversity of organisms that can autotomize body parts has led to a wealth of research and several taxonomically focused reviews. These reviews have played a crucial role in advancing our understanding of autotomy within their respective groups. However, because of their taxonomic focus, these reviews are constrained in their ability to enhance our understanding of autotomy. Here, we aim to synthesize research on the ecology and evolution of autotomy throughout Animalia, building a unified framework on which future studies can expand. We found that the ability to drop an appendage has evolved multiple times throughout Animalia and that once autotomy has evolved, selection appears to act on the removable appendage to increase the efficacy and/or efficiency of autotomy. This could explain why some autotomizable body parts are so elaborate (e.g. brightly coloured). We also show that there are multiple benefits, and variable costs, associated with autotomy. Given this variation, we generate an economic theory of autotomy (modified from the economic theory of escape) which makes predictions about when an individual should resort to autotomy. Finally, we show that the loss of an autotomizable appendage can have numerous consequences on population and community dynamics. By taking this broad taxonomic approach, we identified patterns of autotomy that transcend specific lineages and highlight clear directions for future research.

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Section: Variation In the Costs And Benefits Of Autotomymentioning

confidence: 92%