Cleaning to corallivory: ontogenetic shifts in feeding ecology of tubelip wrasse

Cole, Andrew J.

doi:10.1007/s00338-009-0563-z

Cited by 24 publications

(20 citation statements)

References 25 publications

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“…The size at which this shift occurs is not precisely known. Cole () found that in the closely related Diproctacanthus xanthurus and Labropsis alleni , a precipitous decrease in cleaning occurs when these species reach approximately 35 and 45 mm standard length, respectively. Given that Larabicus, Diproctacanthus , and Labropsis all transition away from cleaning to obligate corallivory in adulthood, and each attains a similar maximum adult size, it is reasonable to assume that the transition away from cleaning also occurs around 35–45 mm standard length in Larabicus .…”

Section: Introductionmentioning

confidence: 99%

Linking cranial morphology to prey capture kinematics in three cleaner wrasses:Labroides dimidiatus,Larabicus quadrilineatus, andThalassoma lutescens

Baliga

Mehta

2015

Journal of Morphology

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Cleaner fishes are well known for removing and consuming ectoparasites off other taxa. Observers have noted that cleaners continuously "pick" ectoparasites from the bodies of their respective client organisms, but little is known about the kinematics of cleaning. While a recent study described the jaw morphology of cleaners as having small jaw-closing muscles and weak bite forces, it is unknown how these traits translate into jaw movements during feeding to capture and remove ectoparasites embedded in their clients. Here, we describe cranial morphology and kinematic patterns of feeding for three species of cleaner wrasses. Through high-speed videography of cleaner fishes feeding in two experimental treatments, we document prey capture kinematic profiles for Labroides dimidiatus, Larabicus quadrilineatus, and Thalassoma lutescens. Our results indicate that cleaning in labrids may be associated with the ability to perform low-displacement, fast jaw movements that allow for rapid and multiple gape cycles on individually targeted items. Finally, while the feeding kinematics of cleaners show notable similarities to those of "picker" cyprinodontiforms, we find key differences in the timing of events. In fact, cleaners generally seem to be able to capture prey twice as fast as cyprinodontiforms. We thus suggest that the kinematic patterns exhibited by cleaners are indicative of picking behavior, but that "pickers" may be more kinematically diverse than previously thought.

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Section: Introductionmentioning

confidence: 99%

Linking cranial morphology to prey capture kinematics in three cleaner wrasses:Labroides dimidiatus,Larabicus quadrilineatus, andThalassoma lutescens

Baliga

Mehta

2015

Journal of Morphology

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“…Ontogenetic changes in the vertebrate skull have numerous functional, ecological, and behavioral consequences (e.g., Erickson, Lappin & Vliet, 2003; Herrel & Gibb, 2006; Herrel & O’Reilly, 2006; Cole, 2010). Variation in the timing and degree of development of these changes relative to the ancestral condition (heterochrony; e.g., Gould, 1977; Alberch et al, 1979; Klingenberg, 1998; Smith, 2001) is responsible, in part, for the diversity seen even among closely related species.…”

Section: Introductionmentioning

confidence: 99%

Ontogeny in the tube-crested dinosaurParasaurolophus(Hadrosauridae) and heterochrony in hadrosaurids

Farke¹,

Chok²,

Herrero³

et al. 2013

PeerJ

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The tube-crested hadrosaurid dinosaur Parasaurolophus is remarkable for its unusual cranial ornamentation, but little is known about its growth and development, particularly relative to well-documented ontogenetic series for lambeosaurin hadrosaurids (such as Corythosaurus, Lambeosaurus, and Hypacrosaurus). The skull and skeleton of a juvenile Parasaurolophus from the late Campanian-aged (∼75.5 Ma) Kaiparowits Formation of southern Utah, USA, represents the smallest and most complete specimen yet described for this taxon. The individual was approximately 2.5 m in body length (∼25% maximum adult body length) at death, with a skull measuring 246 mm long and a femur 329 mm long. A histological section of the tibia shows well-vascularized, woven and parallel-fibered primary cortical bone typical of juvenile ornithopods. The histological section revealed no lines of arrested growth or annuli, suggesting the animal may have still been in its first year at the time of death. Impressions of the upper rhamphotheca are preserved in association with the skull, showing that the soft tissue component for the beak extended for some distance beyond the limits of the oral margin of the premaxilla. In marked contrast with the lengthy tube-like crest in adult Parasaurolophus, the crest of the juvenile specimen is low and hemicircular in profile, with an open premaxilla-nasal fontanelle. Unlike juvenile lambeosaurins, the nasal passages occupy nearly the entirety of the crest in juvenile Parasaurolophus. Furthermore, Parasaurolophus initiated development of the crest at less than 25% maximum skull size, contrasting with 50% of maximum skull size in hadrosaurs such as Corythosaurus. This early development may correspond with the larger and more derived form of the crest in Parasaurolophus, as well as the close relationship between the crest and the respiratory system. In general, ornithischian dinosaurs formed bony cranial ornamentation at a relatively younger age and smaller size than seen in extant birds. This may reflect, at least in part, that ornithischians probably reached sexual maturity prior to somatic maturity, whereas birds become reproductively mature after reaching adult size.

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“…Given that coral pecking likelihood increased with a reduced cleaning frequency for juveniles, and was more likely in the morning (cleaning can also be more frequent in the morning; Grutter, ), we suggest that wrasse may be gaining a food source from the coral, with the behavior displacing cleaning for juveniles and supplementing feeding for adults (contrasting supplemental juvenile Thalassoma bifasciatum cleaning; Dunkley et al, ). Many reef species are observed feeding on I. palifera (e.g., Labridae; Cole, and Chaetodontidae; Nagelkerken, Velde, Wartenbergh, Nugues, & Pratchett, ), but what the acquired food source is (e.g., coral mucus, polyps, zoo‐/phytoplankton and/or periphyton) remains unknown: bluestreak wrasse have been reported to consume naturally occurring and artificially placed zooplankton in situ (Grutter, ; Losey, ). Cleaners did appear, however, to be selectively picking material from the coral, since inspection behavior can be observed in the footage: cleaners may thus be searching for a particular type of food source that is not uniformly distributed across the coral (similar to client inspection behavior in juvenile T. bifasciatum cleaning; Dunkley et al, ).…”

Section: Discussionmentioning

confidence: 99%

To clean or not to clean: Cleaning mutualism breakdown in a tidal environment

Dunkley

Ward

Perkins

et al. 2020

Ecology and Evolution

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The dynamics and prevalence of mutualistic interactions, which are responsible for the maintenance and structuring of all ecological communities, are vulnerable to changes in abiotic and biotic environmental conditions. Mutualistic outcomes can quickly shift from cooperation to conflict, but it unclear how resilient and stable mutualistic outcomes are to more variable conditions. Tidally controlled coral atoll lagoons that experience extreme diurnal environmental shifts thus provide a model from which to test plasticity in mutualistic behavior of dedicated (formerly obligate) cleaner fish, which acquire all their food resources through client interactions. Here, we investigated cleaning patterns of a model cleaner fish species, the bluestreak wrasse (Labroides dimidiatus), in an isolated tidal lagoon on the Great Barrier Reef. Under tidally restricted conditions, uniquely both adults and juveniles were part‐time facultative cleaners, pecking on Isopora palifera coral. The mutualism was not completely abandoned, with adults also wandering across the reef in search of clients, rather than waiting at fixed site cleaning stations, a behavior not yet observed at any other reef. Contrary to well‐established patterns for this cleaner, juveniles appeared to exploit the system, by biting (“cheating”) their clients more frequently than adults. We show for the first time, that within this variable tidal environment, where mutualistic cleaning might not represent a stable food source, the prevalence and dynamics of this mutualism may be breaking down (through increased cheating and partial abandonment). Environmental variability could thus reduce the pervasiveness of mutualisms within our ecosystems, ultimately reducing the stability of the system.

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Cleaning to corallivory: ontogenetic shifts in feeding ecology of tubelip wrasse

Cited by 24 publications

References 25 publications

Linking cranial morphology to prey capture kinematics in three cleaner wrasses:Labroides dimidiatus,Larabicus quadrilineatus, andThalassoma lutescens

Linking cranial morphology to prey capture kinematics in three cleaner wrasses:Labroides dimidiatus,Larabicus quadrilineatus, andThalassoma lutescens

Ontogeny in the tube-crested dinosaurParasaurolophus(Hadrosauridae) and heterochrony in hadrosaurids

To clean or not to clean: Cleaning mutualism breakdown in a tidal environment

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