Crabs that breathe air with their legs-Scopimera and Dotilla

Maitland, David P.

doi:10.1038/319493a0

Cited by 43 publications

(29 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Finally, the carapace is tightly closed and if undisturbed the crab will remain motionless for hours. In addition, this species has membranous 'windows' on the merus of each walking leg resembling the respiratory structures of some tropical ocypodids (Maitland 1986); however, in limited experiments, we have not found any evidence to date of a similar function in P. cinctipes.…”

Section: Upper Limit Of Petrolisthes Eriomerusmentioning

confidence: 58%

Intertidal zonation among congeners: factors regulating distribution of porcelain crabs Petrolisthes spp. (Anomura. Porcellanidae)

Jensen¹,

Da²

1991

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

The porcelain crabs Petrol~sthes cinctipes (Randall) and P. eriomerus Stimpson are sympatric on exposed rocky shores in the northeastern Pacific These species often exhibit a striking pattern of non-overlapping vert~cal distributions, wlth P. eriomerus inhabiting low Intertidal and subtidal areas and P. cinctipes occurring in the middle and high intert~dal. Transplant experiments revealed that P. enomerus was unable to tolerate displacement as l~ttle as 0 3 m above ~t s normal limit, while in contrast its congener showed good survival and growth when caged at lower levels. The 2 species were equally susceptible to desiccat~on; however, P. enomerus was extremely sens~tive to thermal stress during periods of aerial exposure, and thermal tolerance varied inversely with size. Abiot~c factors also control the d~stnbution of P. cinctipes; t h~s species was competitively dominant in laboratory experiments, suggesting the lower limit is not due to ~nteractions w~t h its congener. Rather, this d~s t n b u t~o n is l~n k e d to sudden changes in substrate composition, involving an actlve avo~dance of rocks resting on sand or s~l t as demonstrated through f~e l d manipulation of substrate beneath rock patches. Patterns of resource (space) p a r t~t i o n~n g beneath rocks are largely a passive consequence of phys~olog~cal constraints and substrate preferences by adults, maintamed In part through gregarious settlement by megalopae of both species

show abstract

Section: Upper Limit Of Petrolisthes Eriomerusmentioning

confidence: 58%

Intertidal zonation among congeners: factors regulating distribution of porcelain crabs Petrolisthes spp. (Anomura. Porcellanidae)

Jensen¹,

Da²

1991

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

show abstract

“…If these windows are homologous with those of the porcelain crabs, they most likely function as respiratory structures. Similar structures, called ''gas windows'', with a demonstrable respiratory effect, have been reported from the pereopods of certain ocypodid crabs (Brachyura: Ocypodidae) (Maitland, 1986), but these are almost certainly analogous, convergently evolved structures to the ones found on anomurans, rather than being homologous ones. These windows can also be found to a lesser degree on other pereopod segments of albuneids and blepharipodids, both laterally and mesially.…”

Section: Morphological Characters and Terminologymentioning

confidence: 89%

A Worldwide Revision of the Recent and Fossil Sand Crabs of the Albuneidae Stimpson and Blepharipodidae, New Family (Crustacea: Decapoda: Anomura: Hippoidea)

Boyko¹

2002

Bulletin of the American Museum of Natural History

View full text Add to dashboard Cite

“…These large oval patches stretch across the curved frame of the leg with cuticle and epidermis thinner than 1 μm, thus permitting direct diffusion to underlying hemolymph spaces. All species use these spots for gas exchange during periods of increased metabolic rates, allowing intertidal crabs to remain aerobic during emersion (352, 500). …”

Section: Section 2 Air Breathing In Invertebrates: Transitions From mentioning

confidence: 99%

Evolution of Air Breathing: Oxygen Homeostasis and the Transitions from Water to Land and Sky

Hsia

Schmitz

Lambertz

et al. 2013

Comprehensive Physiology

282

147

View full text Add to dashboard Cite

Life originated in anoxia, but many organisms came to depend upon oxygen for survival, independently evolving diverse respiratory systems for acquiring oxygen from the environment. Ambient oxygen tension (PO2) fluctuated through the ages in correlation with biodiversity and body size, enabling organisms to migrate from water to land and air and sometimes in the opposite direction. Habitat expansion compels the use of different gas exchangers, for example, skin, gills, tracheae, lungs, and their intermediate stages, that may coexist within the same species; coexistence may be temporally disjunct (e.g., larval gills vs. adult lungs) or simultaneous (e.g., skin, gills, and lungs in some salamanders). Disparate systems exhibit similar directions of adaptation: toward larger diffusion interfaces, thinner barriers, finer dynamic regulation, and reduced cost of breathing. Efficient respiratory gas exchange, coupled to downstream convective and diffusive resistances, comprise the “oxygen cascade”—step-down of PO2 that balances supply against toxicity. Here, we review the origin of oxygen homeostasis, a primal selection factor for all respiratory systems, which in turn function as gatekeepers of the cascade. Within an organism's lifespan, the respiratory apparatus adapts in various ways to upregulate oxygen uptake in hypoxia and restrict uptake in hyperoxia. In an evolutionary context, certain species also become adapted to environmental conditions or habitual organismic demands. We, therefore, survey the comparative anatomy and physiology of respiratory systems from invertebrates to vertebrates, water to air breathers, and terrestrial to aerial inhabitants. Through the evolutionary directions and variety of gas exchangers, their shared features and individual compromises may be appreciated.

show abstract

Crabs that breathe air with their legs-Scopimera and Dotilla

Cited by 43 publications

References 7 publications

Intertidal zonation among congeners: factors regulating distribution of porcelain crabs Petrolisthes spp. (Anomura. Porcellanidae)

Intertidal zonation among congeners: factors regulating distribution of porcelain crabs Petrolisthes spp. (Anomura. Porcellanidae)

A Worldwide Revision of the Recent and Fossil Sand Crabs of the Albuneidae Stimpson and Blepharipodidae, New Family (Crustacea: Decapoda: Anomura: Hippoidea)

Evolution of Air Breathing: Oxygen Homeostasis and the Transitions from Water to Land and Sky

Contact Info

Product

Resources

About