Classification of Reptiles and Amphibians Using Transfer Learning and Deep Convolutional Neural Networks DOI
Kanwarpartap Singh Gill, Rupesh Gupta,

Sonal Malhotra

и другие.

2022 IEEE 7th International conference for Convergence in Technology (I2CT), Год журнала: 2024, Номер unknown

Опубликована: Апрель 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.

Язык: Английский

Do human-induced habitat changes impact the morphology of a common amphibian, Bufo bufo? DOI Creative Commons
Soline Bettencourt‐Amarante,

Raphaëlle Abensur,

Robin Furet

и другие.

Urban Ecosystems, Год журнала: 2025, Номер 28(2)

Опубликована: Фев. 28, 2025

Язык: Английский

Процитировано

3
Dynamics of a Predator-Prey System with Asymmetric Dispersal and Fear Effect DOI Open Access

Xinyu Meng,

Lijuan Chen, Fengde Chen

и другие.

Symmetry, Год журнала: 2025, Номер 17(3), С. 329 - 329

Опубликована: Фев. 22, 2025

Predator-prey interactions are among the most common and crucial ecological phenomena in nature. Over course of long-term evolution, prey populations have developed various anti-predation strategies to cope with threat predators, population dispersal being one strategies. In traditional models, is typically constrained by direct predation. However, an increasing body empirical evidence suggests that fear effect from predator significantly alters physiological behavior prey, leading a decrease reproduction rate increase mortality rate. this paper, we investigate predator-prey system incorporating asymmetric effect, which influences birth death rates species. We rigorously establish existence local stability equilibrium points, derive sufficient conditions for global stability, prove occurrence transcritical bifurcation at boundary equilibrium. Our analysis reveals optimal maximizes density; beyond threshold, increased drives both extinction. Furthermore, its maximum cost exhibit significant negative impacts on abundance, though they do not alter or existence. These findings provide critical insights designing habitat corridors endangered species conservation underscore pivotal role shaping dynamics.

Язык: Английский

Процитировано

1
Habitat fragmentation increases the risk of local extinction of small reptiles: A case study on Phrynocephalus przewalskii DOI Creative Commons
Yang Cui, Yue Qi, Jiayuan Guo

и другие.

Ecotoxicology and Environmental Safety, Год журнала: 2025, Номер 290, С. 117717 - 117717

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0
Identifying conservation gap in biodiversity hotspot area: Single flagship species or multi-species? DOI
Mo Wang, Jing Gan,

Guangpu Guo

и другие.

Journal for Nature Conservation, Год журнала: 2025, Номер unknown, С. 126835 - 126835

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0
Agriculture cover and local vegetation structure shape Squamata’s diversity in agricultural landscapes in Brazilian Cerrado DOI Creative Commons
Gabryella de Sousa Mesquita, Priscila Silveira, Werther Pereira Ramalho

и другие.

Landscape Ecology, Год журнала: 2025, Номер 40(5)

Опубликована: Апрель 18, 2025

Язык: Английский

Процитировано

0
Recent habitat modification of a tropical dry forest hotspot drives population genetic divergence in the Mexican leaf frog: a landscape genetics approach DOI
Sara Covarrubias, Carla Gutiérrez‐Rodríguez, Clementina González

и другие.

Heredity, Год журнала: 2025, Номер unknown

Опубликована: Апрель 19, 2025

Язык: Английский

Процитировано

0
Fragmentation and biodiversity change in urban vegetation: A case study of tram lines DOI Creative Commons
Jan Winkler, Eugeniusz Koda,

Jana Červenová

и другие.

Land Degradation and Development, Год журнала: 2024, Номер 35(5), С. 1734 - 1747

Опубликована: Янв. 10, 2024

Abstract This study explores the vegetation composition along various tram line sections in Bydgoszcz, Poland, with a focus on understanding impact of usage, maintenance, and historical development urban dynamics. addresses this knowledge gap by investigating how these factors influence plant species composition, leading to variations prevalence native non‐native species. The aim is contribute ecological inform management strategies. investigation centers five sites representing different usage maintenance scenarios: Unused line, New Loop rec, old, Old line. Through phytocoenological relevés conducted 2020 2021, we measured taxa coverage. Detrended Correspondence Analysis (DCA) Canonical (CCA) revealed relationships between sites. results indicated presence 107 taxa, graphical representations highlighting prevalent each section. Older showed higher representation species, whereas new exhibited dominance. Moisture‐indicative values suggest an affinity for soils average moisture content. CCA provides insights into site variants offers valuable implications conservation novelty lies its holistic approach multiple interact shape vegetation. By illuminating dynamics informing decision‐making processes, contributes planning, ecology, biodiversity conservation. Additionally, fills providing unique lines environments. Unlike previous research Central European countries focusing planted vegetation, explored spontaneous spread plants successional patterns lines, enhancing our environmental conditions created that development.

Язык: Английский

Процитировано

3
A review of age estimation methods in non‐avian reptiles by growth marks in hard tissues DOI
Diana Székely, Florina Stănescu, Paul Székely

и другие.

Integrative Zoology, Год журнала: 2024, Номер unknown

Опубликована: Янв. 22, 2024

Abstract Age and growth‐related data are basic biological parameters, essential in population ecology, evolution, conservation biology. There is a growing body of published information on reptile demography derived from sclerochronology, technique based counting the growth layers deposited bones (skeletochronology) other hard structures. Since not always easily available, we compiled existing data, described current status knowledge, synthetized conclusions disparate studies, identified patterns research gaps, prioritizing needs for future research. Our database includes results 468 studies covering 236 species 41 families. These represent less than 2% total number known extant species. Turtles crocodiles proportionally better studied, while snakes least examined group. The distribution does reflect needs; found an important geographic bias, with overrepresentation Northern temperate Only 23% checked assumption periodicity marks deposition, method was to be reliable or adequate 79% cases. Overall, obtained through sclerochronology can considered robust, especially if validation methods employed, since general goal characterize trends, dynamics, rather determining exact age any specimen particular.

Язык: Английский

Процитировано

3
Leaping Forward or Crawling Backward? Efforts and Biases in Amphibian and Reptile Research on a Megadiverse Faunal Region in the Philippines DOI Creative Commons
Sumaira S. Abdullah, Kier Celestial Dela Cruz, Lothy F. Casim

и другие.

Conservation, Год журнала: 2023, Номер 3(3), С. 363 - 378

Опубликована: Июль 18, 2023

Research efforts to protect Philippine biodiversity have increased significantly. However, there is an imbalance in the distribution of published studies, with specific territories receiving more attention than others. Mindanao, a southern group islands, known for its high levels endemism amphibians and reptiles. Despite this, research on these groups remains scattered. To address this gap, we conducted literature review focusing reptiles Mindanao faunal region. We found increasing effort towards herpetofauna over two decades, yet clear bias compared Furthermore, that significantly higher species threat index all other vertebrate groups, regardless conservation status. Yet, threatened those facing greater threats are poorly studied general. Understanding factors driving biases Philippines essential allow us redirect most needed areas, particularly understudied neglected taxa Mindanao. This especially urgent face changing climate, where diverse communities at risk extinction. Consequently, by bridging gaps information, can effectively contribute understanding

Язык: Английский

Процитировано

7
Research trends and knowledge gaps in the ecology of dung beetles (Coleoptera: Scarabaeidae) in savannas DOI Creative Commons
Nayara Letícia Reis,

Pablo A. López‐Bedoya,

Júlio Louzada

и другие.

Annals of the Entomological Society of America, Год журнала: 2024, Номер 117(4), С. 209 - 219

Опубликована: Июнь 20, 2024

Abstract Savannas are recognized as one of the world’s most biodiverse ecosystems. However, these environments have highest rates habitat loss due to land use and climate-induced alterations in fire regimes. The combination threats, along with knowledge gaps biodiversity, represents formidable challenges conservation efforts regions. Dung beetles, vital for comprehending impact on savannas, yet undergo comprehensive study. To address this gap, we conducted a systematic review current state regarding dung beetles distributed savannas within Neotropical, Afrotropical, Australasia zoogeographic We describe encompassing geographical distribution, research topics, studied habitats, key metrics assessed existing studies. Our results reveal pronounced focus Neotropical highlighting substantial deficit beetle ecology Afro-tropical Australasian savannas. Most articles focused savanna grasslands, woodlands, human-introduced habitats such pastures. predominant community patterns, replacement, degradation. Noteworthy included abundance, richness, species composition. Diversity indexes functional diversity were also relatively well-explored metrics. across all regions, aspects behavior, reproductive biology, physiology remain inadequately explored. In conclusion, urgent imperative, emphasizing need metrics, including biomass, morphometrics, ecological functions advance our understanding their significance roles

Язык: Английский

Процитировано

2