Invertebrates in Rock Pools

Brendonck, Luc; Lanfranco, Sandro; Timms, Brian V.; Vanschoenwinkel, Bram

doi:10.1007/978-3-319-24978-0_2

Cited by 26 publications

(42 citation statements)

References 86 publications

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“…The hydroperiod constrains the development time for invertebrates and facilitates succession and biotic interactions in FRPs (Bayly, ; Jocqué, Graham, & Brendonck, ; Jocqué, Riddoch, & Brendonck, ; Timms, ). It is usually positively associated with higher diversity (Vanschoenwinkel, Buschke, & Brendonck, ), but this pattern was not observed despite Kimberley FRPs showing a similar range of hydroperiod and depth to rock pools in south‐western Australia (Timms, , ) and elsewhere (Brendonck et al, ). The absence of these relationships may partly result from the infrequent occurrence, or absence, of many of the typical FRP specialist species from Kimberley FRPs: in particular, the rarity of crustaceans.…”

Section: Discussionmentioning

confidence: 99%

“…The hydroperiods in Kimberley FRPs ranged from 17 to 237 days, yet species regarded as being part of the second stage of succession in FRPs (adult Dytiscidae and Notonectidae) occurred in every pool, regardless of hydroperiod. In contrast, patterns of succession in FRPs typically see a shift from specialist crustacean species towards more generalist species in pools with hydroperiods of more than 1 month (Brendonck et al, ; Jocqué et al, ). By only sampling once per wet season, successional patterns could not be described; however, given the comprehensive range of hydroperiods sampled (and by extension, successional phases), these data would have reflected differences among pools with different hydroperiods, had they occurred.…”

Section: Discussionmentioning

confidence: 99%

“…Freshwater rock pools (FRPs) are precipitation‐filled eroded depressions formed on exposed rock, and are both biologically and hydrologically isolated from the surrounding landscape matrix (Brendonck, Lanfranco, Timms, & Vanschoenwinkel, ; Cross et al, ; McLachlan & Ladle, ). Hydroperiod, inundation regime (hydroregime), and water volume are the major environmental drivers in FRPs (Bayly, Halse, & Timms, ; Cross et al, ; Cross, Turner, Merritt, et al, ; Timms, ), and are determined by seasonal rainfall patterns, basin morphology, and catchment size (Cross, Turner, Merritt, et al, ; Hulsmans, Vanschoenwinkel, Pyke, Riddoch, & Brendonck, ; Jocqué, Vanschoenwinkel, & Brendonck, ).…”

Section: Introductionmentioning

confidence: 99%

“…High levels of endemism have also been reported for the plant communities of these habitats (Tuckett et al, ), and this biodiversity is likely to be a reflection of the region's long history of climatic stability and isolation (Pinder et al, ). By contrast, there are few studies of FRPs in tropical regions of South America, Asia, and Australia (Brendonck et al, ; Diel, ; Jocqué et al, ; Schiesari, Moneiro, Ilha, Pope, & Correa, ), including the wet–dry tropics that show strongly seasonal rainfall patterns (Warfe et al, ), aside from research in Africa (e.g. McLachlan & Ladle, ).…”

Section: Introductionmentioning

confidence: 99%

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Do active‐dispersing insects dominate the invertebrate fauna of rock pools in the wet–dry tropics, Kimberley, Australia?

Carey

Cross

Barrett

et al. 2019

Aquatic Conservation

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Invertebrate assemblages of tropical freshwater rock pools (FRPs) are poorly known compared with temperate regions, where FRPs contain specialized, endemic taxa of high conservation value. Invertebrates were sampled from pristine FRPs in the Morgan River catchment in the Australian wet–dry tropics in the 2015 and 2016 wet seasons. Taxa were classified as either active or passive dispersers and by functional feeding groups. A range of physical variables were examined to identify associations with invertebrate assemblages. Forty‐seven taxa were identified from FRPs; most were actively dispersing predatory insects, primarily Coleoptera and Hemiptera. Five adult insect species were found in most pools; other taxa were rare and scattered across FRPs. Two previously undescribed species of Spinicaudata were collected, but few crustacean taxa were recorded, and passively dispersing taxa were rare. Species accumulation curves indicated that had more pools been sampled, more taxa would have been collected in 2015, but in 2016 most species were collected. There was no pattern in FRP assemblages related to any physical variable, but the assemblages in pools were correlated between sampling times. An opportunistic and mobile assemblage composed mostly of actively dispersing predatory insects may explain the absence of relationships with measured variables. Low hydrological stability in the wet–dry tropics may be associated with low taxon richness. The dominance of actively dispersing insects is in contrast with FRP assemblages in temperate and arid regions. Studies of a wider range of FRPs from tropical regions are required to determine whether the fauna of these Kimberley FRPs are typical, and to fully describe short‐range endemic species across the Kimberley and elsewhere. The FRPs have conservation value as habitat for endemic, specialist rock‐pool taxa, contributing to regional species pools. At present, a lack of knowledge of endemic FRP specialist species in tropical regions, including the Kimberley, impedes our ability to protect and conserve these species from disturbance.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Do active‐dispersing insects dominate the invertebrate fauna of rock pools in the wet–dry tropics, Kimberley, Australia?

Carey

Cross

Barrett

et al. 2019

Aquatic Conservation

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“…Gnammas of southern Western Australia are well studied and claimed to be the most diverse in the world (Brendonck et al 2016). At least 230 species of invertebrates have been identified from these gnammas, including many endemic species (Pinder et al 2000), among which are two fairy shrimps and at least four clam shrimps (Timms 2006).…”

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confidence: 99%

A study of the gnammas (rock pools) in some granitic outcrops in central Victoria, with a comparison of their invertebrate communities across southern Australia

Timms¹

2017

Proc. R. Soc. Vic.

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Gnammas in central Victoria occur at Kooyoora, Terrick Terrick, Mt Pilot near Chiltern and Bald Rock near Euroa. Though similar structurally and with similar hydroperiods to those in the Western Australian Wheatbelt and on Eyre Peninsula (EP), South Australia, many are smaller and all have fresher waters. Momentary species richness in pan gnammas range from 2.7 at Bald Rock to 9.3 at Terrick Terrick and in pit gnammas from 7.6 at Kooyoora to 15.3 at Terrick Terrick. These figures are significantly lower than figures of ca 30 for WA pans and ca 10 for EP pans, but ambivalent for pits, cf 12 in WA, and 9 on EP. Central Victorian gnammas have only one endemic species compared with many in WA and a few on EP. Species seem to have few special adaptations for life in Victorian gnammas, compared to many in WA. Factors thought to be influencing these differences include habitat size (a function of site age), number of gnammas per rock exposure (habitat variability and availability), and past climatic fluctuations (promotion of speciation). All these factors enhance diversity in WA, but mostly inhibit it in central Victoria, with Eyre Peninsula being intermediate.

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Contrasting biodiversity and food web structure of three temporary freshwater habitats in a tropical biodiversity hotspot

Snoeks

Driesen

Porembski

et al. 2021

Aquatic Conservation

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In many biomes, a variety of different small freshwater habitats, such as pools and phytotelmata can occur together in the same habitat matrix. However, both the biodiversity and the functioning of these ecosystems remain poorly known. Three freshwater habitat types in a tropical West African biodiversity hotspot were studied. The study demonstrated that animal communities in water‐filled tree holes, temporary ponds and granite rock pools were strongly differentiated with exclusive faunas despite their spatial proximity and similar disturbance in the form of seasonal drought. In particular, granite rock pools stood out with a high gamma diversity. Rock pools were also functionally different from the other two habitat types. The three habitats had contrasting predator assemblages, a differential reliance on primary production and different concentrations of available nutrients. The work illustrates that the biodiversity and functions of small temporary freshwater habitats can be strongly differentiated. This shows the unique and potentially complementary roles that these habitats can fulfil in mediating fluxes of energy and nutrients and preserving aquatic biodiversity in landscapes. Temporary aquatic habitats are typically overlooked in conservation policy and local management plans despite being threatened by habitat transformation. In addition, livestock can threaten savanna ponds, wood exploitation can threaten tree holes, and mining and sediment disruption can threaten rock pools. Hence, better knowledge about the ecological functioning of these ecosystems is vital to the implementation of effective conservation strategies.

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Invertebrates in Rock Pools

Cited by 26 publications

References 86 publications

Do active‐dispersing insects dominate the invertebrate fauna of rock pools in the wet–dry tropics, Kimberley, Australia?

Do active‐dispersing insects dominate the invertebrate fauna of rock pools in the wet–dry tropics, Kimberley, Australia?

A study of the gnammas (rock pools) in some granitic outcrops in central Victoria, with a comparison of their invertebrate communities across southern Australia

Contrasting biodiversity and food web structure of three temporary freshwater habitats in a tropical biodiversity hotspot

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