Classification of Reptiles and Amphibians Using Transfer Learning and Deep Convolutional Neural Networks

2022 IEEE 7th International conference for Convergence in Technology (I2CT), Journal Year: 2024, Volume and Issue: unknown

Published: April 5, 2024

This article introduces a novel method for automatically classifying reptiles and amphibians using deep convolutional neural networks (CNNs) transfer learning. Understanding the ecological significance of these two groups vertebrates as well shortcomings conventional categorization techniques, we take advantage learning's capabilities to create reliable precise MobileNetV2 model species identification. To overcome constraints small-scale datasets, use learning by optimising pre-trained CNN on huge collection photos amphibians. The model's high extraction efficiency allows it generalise effectively across wide range species. Additionally, research investigates importance picture augmentation methods improve performance, especially in situations with little labelled data. suggested approach shows encouraging outcomes addressing difficulties brought about changes scale, posture, surrounding circumstances. By comparing classification accuracy large dataset reptiles, its biodiversity surveys, monitoring, conservation initiatives is demonstrated. classifies 82% accuracy. study adds scalable effective automated identification expanding field computer vision applied animal biology ecology. results highlight usefulness methods, learning, tackling challenges associated categorising fauna. provides opportunities more into relationship between artificial intelligence preservation.

Language: Английский

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Urban oasis? Abundant dice snake (Natrix tessellata) populations along artificial lakeside habitats in urban landscapes

Landscape Ecology, Journal Year: 2024, Volume and Issue: 39(7)

Published: June 26, 2024

Abstract Context Human-induced landscape modification, such as urbanization, creates new environments that can have adverse effects on flora and fauna, posing threats to biodiversity. Understanding how reptiles respond urbanization is crucial, especially in light of their ongoing population declines. Objectives We examined the influence landscape-scale local-scale features abundance an aquatic snake species. Our investigation focused dice snakes ( Natrix tessellata ) inhabiting a lake with heavily urbanized shoreline. Methods conducted visual encounter surveys at 25 study sites during activity period around Lake Balaton Hungary. measured both variables, including urban land use cover, vegetation road distance main roads city size, emergent cover area artificial rock concrete shoreline protection structures. analysed survey data using N-mixture models estimate examine relationships variables. Results Urban proximity extent structures positively affected snakes. These findings imply habitats may offer ecological opportunities for Conclusions The this indicate human-induced modifications positive impact Taken together, our suggest complex phenomenon, affecting species different levels subtle effects.

Language: Английский

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Divergent Importance and Geographic Patterns in Threats to Birds and Mammals in China

Diversity and Distributions, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 30, 2024

ABSTRACT Aim Wildlife populations are continuing to decrease worldwide. Understanding the ranking and distribution of drivers species declines is crucial enable targeted actions counteract major threats. However, few studies have assessed relative importance geographic threats biodiversity in China, even for high‐profile groups such as birds mammals. Therefore, this study aims rank map threat mammals which could provide novel insight into conservation China. Location Methods A database different 147 threatened bird 176 terrestrial mammal was obtained from China's Red List Biodiversity published 2021. We collated information on categories aiming classify, used Bray–Curtis dissimilarity index examine correlations occurring simultaneously, compared habitat In addition, we conducted analyses between orders traits (body mass clutch/litter sizes). Results The results showed that most common were loss, hunting, human disturbance, agriculture, pollution logging, while disturbance livestock farming or ranching. These patterns, some frequently co‐occur syndromes. Forests primary species, formed by larger with small clutch litter sizes more likely be threatened. Main Conclusions highlight key areas conservation. Furthermore, focusing clusters co‐occurring may effective way aid recovery needed counter ongoing population many groups. should not limited protection regions where at risk multiple significant threats, but also include maintenance restoration native forests strategic planning afforestation through planted forests.

Language: Английский

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Climate Futures for Lizards and Snakes in Western North America May Result in New Species Management Issues

Ecology and Evolution, Journal Year: 2024, Volume and Issue: 14(10)

Published: Oct. 1, 2024

ABSTRACT We assessed changes in fundamental climate‐niche space for lizard and snake species western North America under modeled climate scenarios to inform natural resource managers of possible shifts distributions. generated eight distribution models each 130 six time‐by‐climate scenarios. combined the highest‐performing per into a single ensemble model scenario. Maps were from depict Patterns richness based on suitability niche calculated projections at scale entire study area individual states provinces, Canada Mexico. Squamate species' recent‐time scenario published known ranges highly correlated ( r = 0.81). Overall, reptile was projected move northward future. Sixty‐eight percent expand their current rather than shift, contract, or remain stable. Only 8.5% lose future, these primarily occurred Mexico southwestern U.S. found few all suitable state province level, although often predicted occupy novel areas, such as higher elevations. Most squamate increase future As niches northward, are cross administrative borders, resulting conservation issues local landowners agencies. However, information dispersal abilities, landscape connectivity, biophysical tolerances, habitat is needed contextualize predictions relative realized expansions.

Language: Английский

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Big impacts with small efforts: spatial prioritization for amphibian conservation in the Sierra Madre del Sur, Mexico

Animal Conservation, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 24, 2024

Abstract Amphibian survival is imperiled by increasing anthropogenic disturbance and insufficient conservation efforts. Spatial prioritization an essential tool that allows for optimization of scarce resources the identification protected area networks will maintain their effectiveness in future. This study focuses on amphibians Sierra Madre del Sur, a Mexican biogeographic province with high amphibian species richness endemism. We aim to (i) assess performance current network (ii) identify potential expansion areas network, considering persistence time. Using occurrence data 107 species, we estimated distributions distribution models buffers. Species were weighted according national international status, future land‐use change scenarios incorporated priority using Zonation software. Results revealed poor conservation, failing cover any top 2% areas. Many fall outside 30% priority, indicating inadequate location conservation. However, minimal expansions could significantly enhance protection high‐risk particularly Plethodontidae family. Our highlights systematic planning improving efficient even key Finally, our findings provide important insights into region levels endemism has often been neglected terms biodiversity

Language: Английский

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