Habitat characteristics and population size of Iranocypris typhlops, the Iran cave barb

Bagheri, Mohammad; Goudarzi, Forough; Zalaghi, A. H.; Savabieasfahani, Mozhgan

doi:10.1007/s10641-015-0465-6

Cited by 3 publications

(2 citation statements)

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“…Lower haplotype diversity of G. tashanensis than for G. typhlops and G. lorestanensis may be due to its smaller population size. Bagheri et al (2016) reported a population size of 300-600 individuals for G. typhlops and G. lorestanensis , and Mousavi-Sabet et al (2016) reported a population size of at least 60-100 individuals in the two pools of 20-30 m 2 surface area in Tashan Cave. Compared to the nuclear genome (nDNA), the mitochondrial genome (mtDNA) has an effective size 25% that of the nDNA effective size (Hallerman 2003); this lower effective size makes mtDNA diversity erode more rapidly in response to random genetic drift or population bottlenecks, which can be an explanation for low mitochondrial haplotypic diversity of G. tashanensis in Tashan Cave.…”

Section: Discussionmentioning

confidence: 99%

“…In comparison, for nine G. tashanensis analyzed in this study and in, only three COI haplotypes are reported. Lower haplotype diversity of G. tashanensis than for G. typhlops and G. lorestanensis may be due to its smaller population size Bagheri et al (2016). reported a population size of 300-600 individuals for G.typhlops and G. lorestanensis, and Mousavi-Sabet et al (…”

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confidence: 98%

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Two different mental disc forms in the Tashan caveGarra:different species or ecotypes?

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et al. 2022

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In the Tashan Cave barb Garra tashanensis, inhabiting a small cave in south west Iran, two mental disc forms were observed. To assess their phylogenetic relationships, disc-less and disc-bearing individuals were analyzed using mitochondrial cytochrome oxidase subunit I (COI) partial DNA sequences. Both mental disc forms nested within one clade with absolute bootstrap support (BS = 100), and the genetic distances between the disc-bearing and disc-less individuals (0.3-0.7%) was considerably lower than inter-species mtDNA sequence distances reported among members of the genus Garra. Hence, the observed mental disc variation was not inferred to be a taxonomic feature or a consequence of character displacement. Instead, it was inferred as a case of character release to diversify among ecological niches in the limited subterranean habitat, which should be clarified in follow-up ecological and population genetic studies in more detail.

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Section: Discussionmentioning

confidence: 99%

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confidence: 98%

Two different mental disc forms in the Tashan caveGarra:different species or ecotypes?

Segherloo

Chaloshtory

Naser

et al. 2022

Preprint

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Sympatric morphotypes of the restricted-range Tashan Cave Garra: distinct species or a case of phenotypic plasticity?

et al. 2022

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Towards evidence‐based conservation of subterranean ecosystems

et al. 2022

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Subterranean ecosystems are among the most widespread environments on Earth, yet we still have poor knowledge of their biodiversity. To raise awareness of subterranean ecosystems, the essential services they provide, and their unique conservation challenges, 2021 and 2022 were designated International Years of Caves and Karst. As these ecosystems have traditionally been overlooked in global conservation agendas and multilateral agreements, a quantitative assessment of solution-based approaches to safeguard subterranean biota and associated habitats is timely. This assessment allows researchers and practitioners to understand the progress made and research needs in subterranean ecology and management. We conducted a systematic review of peer-reviewed and grey literature focused on subterranean ecosystems globally (terrestrial, freshwater, and saltwater systems), to quantify the available evidence-base for the effectiveness of conservation interventions. We selected 708 publications from the years 1964 to 2021 that discussed, recommended, or implemented 1,954 conservation interventions in subterranean ecosystems. We noted a steep increase in the number of studies from the 2000s while, surprisingly, the proportion of studies quantifying the impact of conservation interventions has steadily and significantly decreased in recent years. The effectiveness of 31% of conservation interventions has been tested statistically. We further highlight that 64% of the reported research occurred in the Palearctic and Nearctic biogeographic regions. Assessments of the effectiveness of conservation interventions were heavily biased towards indirect measures (monitoring and risk assessment), a limited sample of organisms (mostly arthropods and bats), and more accessible systems (terrestrial caves). Our results indicate that most conservation science in the field of subterranean biology does not apply a rigorous quantitative approach, resulting in sparse evidence for the effectiveness of interventions. This raises the important question of how to make conservation efforts more feasible to implement, cost-effective, and long-lasting. Although there is no single remedy, we propose a suite of potential solutions to focus our efforts better towards increasing statistical testing and stress the importance of standardising study reporting to facilitate metaanalytical exercises. We also provide a database summarising the available literature, which will help to build quantitative knowledge about interventions likely to yield the greatest impacts depending upon the subterranean species and habitats of interest. We view this as a starting point to shift away from the widespread tendency of recommending conservation interventions based on anecdotal and expert-based information rather than scientific evidence, without quantitatively testing their effectiveness.

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Habitat characteristics and population size of Iranocypris typhlops, the Iran cave barb

Cited by 3 publications

References 17 publications

Two different mental disc forms in the Tashan caveGarra:different species or ecotypes?

Two different mental disc forms in the Tashan caveGarra:different species or ecotypes?

Sympatric morphotypes of the restricted-range Tashan Cave Garra: distinct species or a case of phenotypic plasticity?

Towards evidence‐based conservation of subterranean ecosystems

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