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7 pages, 1227 KiB

Open AccessProceeding Paper

Modeling the Current Suitable Habitat Range of the Yellow-Bellied Gecko (Hemidactylus flaviviridis Rüppell, 1835) in Iran

by Saman Ghasemian Sorboni, Mehrdad Hadipour and Narina Ghasemian Sorboni

Biol. Life Sci. Forum 2024, 39(1), 1; https://doi.org/10.3390/blsf2024039001 - 20 Nov 2024

Viewed by 448

Abstract

Studying the current range of species presence is crucial for ecologists and related scientists to understand potential habitats and the influence of environmental factors on species distribution. In this study, we used species distribution modeling (SDM) to look into where the yellow-bellied gecko, also known as the northern house gecko (Hemidactylus flaviviridis Rüppell, 1835), lives in Iran. We achieved this by combining four machine learning algorithms: Random Forest (RF), the Support Vector Machine (SVM), Maximum Entropy (Maxent), and the Generalized Linear Model (GLM). We utilized 19 historical bioclimatic variables, the Digital Elevation Model (DEM), slope, aspect, and the Normalized Difference Vegetation Index (NDVI). After calculating their correlations, we selected variables for modeling with a variance inflation factor (VIF) of less than 10. The findings indicate that the variables “Precipitation of the Coldest Quarter” (BIO19) and “Mean Temperature of Wettest Quarter” (BIO8) have the most significant influence on the species’ distribution. The gecko primarily inhabits low elevations and slopes, particularly those below 400 m above sea level with slopes less than 8 degrees, primarily in southern Iran. Additionally, we found that the NDVI had a minimal impact on the distribution of the species. Therefore, we identify the provinces of Khuzestan, Bushehr, Hormozgan, and Fars, along with parts of the coastal strip of Sistan and Baluchistan, as suitable areas for the current presence of this species. Full article

(This article belongs to the Proceedings of The 3rd International Electronic Conference on Diversity: Biodiversity of Animals, Plants and Microorganisms)

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10 pages, 1425 KiB

Open AccessProceeding Paper

Bacterial Strain from Biofilm on Surface of Poly(Ethylene Terephthalate) from Soil in Chernihiv City (Ukraine) Used as Potential Agent of Biodegradation

by Nataliia Tkachuk and Liubov Zelena

Biol. Life Sci. Forum 2024, 39(1), 2; https://doi.org/10.3390/blsf2024039002 - 7 Jan 2025

Viewed by 270

Abstract

Bacteria actively degrade polymeric materials due to high biochemical activity and the ability to form biofilms. In order to expand our knowledge about soil bacterial biodiversity on the surface of artificial materials from the soil of Chernihiv (Ukraine), in this study, the bacterial strain PET1 was isolated from the biofilm formed on the poly(ethylene terephthalate) bottle material taken from soil. The strain was isolated and purified on Postgate’s “C” medium and modified by us (using poly(ethylene terephthalate) as the only source of carbon). The PET1 strain was identified as Achromobacter xylosoxidans based on a complex of microbiological and molecular genetic features. This study is the first report of the isolation of an A. xylosoxidans strain from a biofilm on the surface of poly(ethylene terephthalate) collected from the soil. Considering the growing interest of researchers in the problem of biodegradation of plastics, attention should be paid to the potential of A. xylosoxidans as biodegradation agents. The involvement of bacteria of the genus Achromobacter in the biodegradation of artificial polymers (polyvinyl chloride, high-density polyethylene, nylon) opens up prospects for the isolated strain PET1 to be studied and, possibly, applied as a biodegrader of poly(ethylene terephthalate). Full article

(This article belongs to the Proceedings of The 3rd International Electronic Conference on Diversity: Biodiversity of Animals, Plants and Microorganisms)

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79 pages, 603 KiB

Open AccessConference Report

Abstracts of the 3rd International Electronic Conference on Diversity: Biodiversity of Animals, Plants and Microorganisms

by Michael Wink

Biol. Life Sci. Forum 2024, 39(1), 3; https://doi.org/10.3390/blsf2024039003 - 8 Jan 2025

Viewed by 791

Abstract

The 3rd International Electronic Conference on Diversity: Biodiversity of Animals, Plants and Microorganisms (IECD 2024) was held from 15 to 17 October 2024. The conference focused on the key theme of biodiversity from a wide range of domains, especially animals and plants. The conference was in a virtual format, eliminating the need for travel and other related expenses, allowing attendees to fully immerse themselves in the conference without any logistical constraints. It aimed to foster collaboration and knowledge exchange among researchers. Full article

(This article belongs to the Proceedings of The 3rd International Electronic Conference on Diversity: Biodiversity of Animals, Plants and Microorganisms)

8 pages, 3107 KiB

Open AccessProceeding Paper

The Value of By-Catch: Can We Use Commercial Species Stock Assessment Cruises for the Study of Non-Target Species? The Case of Sponges

by Laura Schejter, Esteban Gaitán and Mariela Pavón Novarin

Biol. Life Sci. Forum 2024, 39(1), 4; https://doi.org/10.3390/blsf2024039004 - 10 Jan 2025

Viewed by 232

Abstract

The contribution of sponges to benthic communities in three areas of the Argentine continental shelf and slope (North, Central and South), between 34° and 55° S and between 47 and 551 m, is presented here. Sponges were recorded as components of the invertebrate by-catch in 51% of the studied sites (133 hauls). On average, sponges constituted 18.01% of the benthic community (47.91 kg/mn², in terms of density), reaching more than 90% of the by-catch and more than 500 kg/mn² at some particular sites. A total of 34 sponge taxa were recorded. Tedania spp., Clathria (C.) microxa and Callyspongidae (Siphonochalina fortis + Callyspongia sp.) were the only taxa shared among the three sampled areas. Sixty percent (60%) of the sponge species were recorded only at one or two sites. Full article

(This article belongs to the Proceedings of The 3rd International Electronic Conference on Diversity: Biodiversity of Animals, Plants and Microorganisms)

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