The Complex Bridge between Aquatic and Terrestrial Life: Skin Changes during Development of Amphibians

Çömden, Esra Akat; Yenmiş, Melodi; Çakır, Berna

doi:10.3390/jdb11010006

Cited by 16 publications

(7 citation statements)

References 68 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In contrast, the open canopies in the plantations decrease humidity and shelter availability (Hardwick et al., 2015). This affects amphibians in particular because their skin is highly permeable (Akat Çömden et al., 2023) and is especially unbearable for forest specialists (Faruk et al., 2013; Foster et al., 2011; Zainudin et al., 2019). Conversely, generalist species, such as the Boie's wart frog ( Fejervarya limnocharis ) and the common greenback ( Hylarana erythraea ), prefer plantations due to the reduced competition and opportunistic spawning grounds (puddles or tracks) left by harvest trucks (Paoletti et al., 2018).…”

Section: Discussionmentioning

confidence: 99%

Meta‐analysis contrasting freshwater biodiversity in forests and oil palm plantations with and without riparian buffers

Rojas‐Castillo,

Kepfer Rojas,

Juen

et al. 2023

Conservation Biology

View full text Add to dashboard Cite

The expansion of oil palms has led to land‐use change and deforestation in the tropics, affecting biodiversity. While the impacts of the crop on terrestrial biodiversity have been extensively reviewed, the effects on freshwater biodiversity remain relatively unexplored. We reviewed the research assessing the impacts of forest‐to‐oil palm conversion on freshwater biota, and the mitigating effect of riparian buffers on these impacts. First, we search for studies comparing taxon richness, abundance, and community composition of macroinvertebrates, amphibians, and fish in streams in forests (primary and disturbed) and oil palm plantations with and without riparian buffers. Then, we conducted a meta‐analysis to quantify the overall effect of the land‐use change on the three taxonomic groups. We used 29 studies, as these alone fulfilled the inclusion criteria. On aggregate, across the three taxonomic groups, the plantations lacking buffers hosted 44% and 19% fewer stream taxa than primary and disturbed forests. However, when plantations retained buffers, these differences were reduced to 24% and no difference, respectively. In contrast, stream community composition differed between forests and plantations regardless of the presence of riparian buffers. These differences were attributed to agrochemical use and altered environmental conditions in the plantations including temperature changes, worsened water conditions, microhabitat loss, and food and shelter depletion. On aggregate, abundance did not differ among land uses, as increases in generalist species offset the population decline of vulnerable forest specialists in the plantation. Our study reveals significant impacts of forest‐to‐oil palm conversion on freshwater biota, particularly concerning taxon richness and composition (not aggregate abundance). While preserving riparian buffers within the plantations can mitigate the loss of various aquatic species, it cannot conserve primary forest communities. Therefore, safeguarding primary forests from the oil‐palm expansion is crucial, and further research is needed addressing riparian buffers as a promising mitigation strategy in agricultural areas.This article is protected by copyright. All rights reserved

show abstract

Section: Discussionmentioning

confidence: 99%

Meta‐analysis contrasting freshwater biodiversity in forests and oil palm plantations with and without riparian buffers

Rojas‐Castillo,

Kepfer Rojas,

Juen

et al. 2023

Conservation Biology

View full text Add to dashboard Cite

show abstract

“…These latter have biphasic lifecycles occurring in both aquatic and terrestrial systems, as they are very sensitive to the consequences of environmental threats, way more than other species due to the peculiarities of their skin [17]. This organ is very complex, responsible for respiration, osmoregulation, thermoregulation, and adsorption, and makes the amphibians valid biosentinels [18]. Previews studies reported the efficacy of Hyla cinerea (Garman, 1892), Ambystoma barbourin (Kraus and Petranka, 1989), Rana pipiens (Schreber, 1782), Rana clamitans (Latreille, 1801), Xenopus laevis (Daudin, 1802), Bufotes viridis (Laurenti, 1768) as rapid responders of environmental contamination and ecological damage [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Non-Lethal Assessment of Land Use Change Effects in Water and Soil of Algerian Riparian Areas along the Medjerda River through the Biosentinel Bufo spinosus Daudin

Napoletano,

Guezgouz,

Benradia

et al. 2024

Water

View full text Add to dashboard Cite

The land use change can negatively impact ecosystems, enriching water and soil with heavy metals (HMs). The fragile riparian areas along the Medjerda River of Northern Algeria are particularly affected by this phenomenon, and biological tools able to combine information about both matrices can be preferred in their monitoring. This research aimed to evaluate the suitability of the spiny toad (Bufo spinosus D.) as a biomonitor for assessing the impact of three different land uses (agricultural (AGR), urban (URB), and industrial (IND) managements) on soil and water for Cu, Fe, Pb, and Zn by using the non-lethal skin biopsy. The IND land use, followed by URB, mostly impacted soils for Cu and Pb, whereas management was not able to influence water differently despite worrying Pb levels. The cluster analysis allows to show that toad responds like soil in terms of land use and like water for HMs, as it is possibly related to the metal–chemical affinity. Although the single skin analyses do not display any difference among the managements, the bioaccumulation factor (BF > 1) shows that B. spinosus absorbs more HMs from water; skin accumulates Fe and Zn regardless of the land use, probably for both natural and anthropogenic assimilation and Pb and Cu for URB and IND, as it is related to their ionic forms and human impact.

show abstract

“…The integument of anurans performs several functions that are necessary for the survival of the species, being constituted by the epidermis and dermis. It participates in gas exchange, osmoregulation, thermoregulation, defense against macropredators and micropredators, and skin lubrication [5]. The integument contains mucous and granular glands, which contribute to protection against predators [6].…”

Section: Introductionmentioning

confidence: 99%

First Report of Ocellatin-VT from the Skin Secretion of Leptodactylus vastus Lutz (Amphibia: Leptodactylidae)

Silva,

Barbosa,

Santana

et al. 2024

Chemistry

View full text Add to dashboard Cite

The global emergency of antimicrobial resistance has drawn several efforts to evaluate new drug candidates, such as natural defensive biomolecules. Ocellatins are a group of antimicrobial peptides found in anurans of the Leptodactylidae family. This work investigated the presence of antimicrobial peptides in the skin secretion of Leptodactylus vastus from the Brazilian northeast. The secretion was fractionated by RP-HPLC, and the fractions were screened for antibacterial activity. A peptide isolated from the most active fraction was characterized for primary structure and evaluated for antibacterial activity, cytotoxicity to murine melanoma cells (B16-F10), and hemolytic activity. The RP-HPLC profile displayed 26 fractions, with fraction 25 being the most active. One of the two peptides present in this fraction had the primary structure determined, belonging to the group of ocellatins. Since it was not identical to other ocellatins previously reported, it was named ocellatin-VT. This peptide especially inhibited Gram-negative bacteria growth, with the highest activity against Acinetobacter baumannii and Escherichia coli (growth inhibition was higher than 95% at 8 and 16 µM, respectively). Ocellatin-VT was weakly cytotoxic to B16-F10 cells and showed low hemolytic activity. In conclusion, a new ocellatin was isolated from L. vastus skin secretion that was active against non-resistant and multidrug-resistant bacteria.

show abstract

The Complex Bridge between Aquatic and Terrestrial Life: Skin Changes during Development of Amphibians

Cited by 16 publications

References 68 publications

Meta‐analysis contrasting freshwater biodiversity in forests and oil palm plantations with and without riparian buffers

Meta‐analysis contrasting freshwater biodiversity in forests and oil palm plantations with and without riparian buffers

Non-Lethal Assessment of Land Use Change Effects in Water and Soil of Algerian Riparian Areas along the Medjerda River through the Biosentinel Bufo spinosus Daudin

First Report of Ocellatin-VT from the Skin Secretion of Leptodactylus vastus Lutz (Amphibia: Leptodactylidae)

Contact Info

Product

Resources

About