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

High amphibian diversity throughout urban environmental heterogeneity DOI
Rocio Pamela Demartín, Romina Ghirardi, Javier Alejandro López

и другие.

Urban Ecosystems, Год журнала: 2024, Номер 27(6), С. 2061 - 2072

Опубликована: Июнь 26, 2024

Язык: Английский

Процитировано

2
Long-term stability in Protected-Areas? A vision from American/ New World Amphibians DOI Creative Commons
Leticia M. Ochoa‐Ochoa, Julián A. Velasco

Geography and sustainability, Год журнала: 2024, Номер unknown

Опубликована: Окт. 1, 2024

Язык: Английский

Процитировано

2
Linking microbiome and stress hormone responses in wild tropical treefrogs across continuous and fragmented forests DOI Creative Commons
Wesley J. Neely, Renato A. Martins,

Camila Maria Mendonça da Silva

и другие.

Communications Biology, Год журнала: 2023, Номер 6(1)

Опубликована: Дек. 12, 2023

Abstract The amphibian skin microbiome is an important component of anti-pathogen defense, but the impact environmental change on link between composition and host stress remains unclear. In this study, we used radiotelemetry translocation to track function, pathogen infection, over time across natural movement paths for forest-associated treefrog, Boana faber . We found a negative correlation cortisol levels putative function frogs translocated forest fragments, indicating strong integration response potential microbiome. Additionally, observed capacity resilience (resistance structural functional loss) in microbiome, with maintenance pathogen-inhibitory despite major temporal shifts composition. Although community did not return baseline during study period, rate indicated that fragmentation had more pronounced effects than alone. Our findings reveal associations hormones defenses, implications amphibians their associated microbes facing accelerated tropical deforestation.

Язык: Английский

Процитировано

5
Quantifying the Ecological Performance of Migratory Bird Conservation: Evidence from Poyang Lake Wetlands in China DOI Creative Commons
Zhenjiang Song,

Shichao Gao,

Mingni Leng

и другие.

Biology, Год журнала: 2024, Номер 13(10), С. 786 - 786

Опубликована: Сен. 30, 2024

Protected areas are essential for the conservation of biodiversity. However, rapid expansion urbanization and intensification human activities have significantly disrupted environmental integrity, leading to a continuous deterioration in both quantity quality large ecological patches. This has further diminished connectivity among patches, significant consequences regional biodiversity conservation. Taking Poyang Lake as case study, which serves crucial wintering habitat migratory birds along East Asia-Australasia flyway, this research employs ArcMap technology. It considers various factors including land use type, slope, elevation evaluate degradation through application InVEST model. Additionally, study utilizes minimum cumulative resistance (MCR) model alongside circuit theory delineate corridors within area establish comprehensive network system. The results paper follows. (i) During period from 2000 2020, there was an overall decline area, indicating clear trend degradation. it is worth noting that increase certain local protected area. (ii) values core bird reserve generally low. habitats shown consistent 2020. been decrease density during time period. (iii) Over number decreased their integrity functionality degraded. Consequently, weakened role had implications maintaining ecosystem service functions. findings indicate two conclusions. Ecological habitats. Strengthening control measures aimed at expanding can effectively safeguard flagship umbrella species, thereby promoting establishment help reconcile conflicts between efforts development objectives. reconciliation carries theoretical fostering harmonious coexistence humans Lake's sanctuary.

Язык: Английский

Процитировано

1
Unveiling how herpetofauna cope with land‐use changes—Insights from forest‐cashew‐rice landscapes in West Africa DOI

Francisco dos Reis‐Silva,

Cristian Pizzigalli,

Sambú Seck

и другие.

Biotropica, Год журнала: 2024, Номер 57(1)

Опубликована: Дек. 13, 2024

Abstract Agricultural induced land‐use change comprises a key driver of biodiversity loss across tropical forests. Guinea‐Bissau, among Afrotropical West Africa, was formerly occupied by native forest‐savanna mosaics. While savannas have long given place to traditional rice agroecosystems, forests are now being transformed into cashew monocultures at unprecedented rates. The ecological impact such rapid is largely unknown. Here, we examined how rarefied species richness, encounters, and composition amphibians reptiles varied forest remnants, orchards, paddies in northern Guinea‐Bissau. To do so, visual encounter surveys were carried 21 standardized sampling sites, seven each habitat type. A total 703 amphibian 266 reptile encounters recorded from nine 14 taxa, respectively. results show class‐specific responses Amphibian richness similar types, but held more distinct compared remnants. Reptile lower than orchards had the most different Overall, our not support expected detrimental impacts expansion, which might be due still high heterogeneity types within landscape. Rice proved particularly important for amphibians, open‐habitat reptiles, boosting landscape‐scale diversity. In face eminent conversion, maintaining heterogeneous landscapes, including persistence both remnants paddies, critical minimize Africa.

Язык: Английский

Процитировано

1
Behavior, stress and metabolism of a parthenogenic lizard in response to flyover noise DOI Creative Commons
Megen E. Kepas, Layne O. Sermersheim, Spencer B. Hudson

и другие.

Frontiers in Amphibian and Reptile Science, Год журнала: 2023, Номер 1

Опубликована: Март 29, 2023

The Colorado checkered whiptail ( Aspidoscelis neotesselatus ) is a parthenogenetic lizard that listed as “species of special concern” in the state Colorado. A. occupies small range includes US Army Fort Carson Military Base Springs, species exposed to variety military disturbances, including aircraft flyover noise. We sampled 82 females during 2021 reproductive season assess whether scheduled flyovers would impact behavior, stress, and metabolism , while controlling for size stage differences. measured corticosterone (CORT) marker anthropogenically induced stress compared control. further tested downstream effects on plasma glucose (free energy available tissues), elevated with oxidative (ROMs), ketone bodies (alternative cerebral substrates glucose). When disturbed by flyovers, these lizards spent less time moving but more eating. Aircraft noise also increased CORT when clutch size, indicating response driven well an independent effect investment CORT. did not affect glucose. Flyovers led marginally decrease circulating ROMs, gravid experiencing lower ROMs than non-gravid females, later was flyovers. significantly bodies, smaller animals higher concentrations larger individuals, yet treatment. Although seem adjust their behavior eat buffer potentially negative energetic pathways, they still appear suffer metabolic cost via accumulation, disturbance. suggest operators attempt avoid dense populations or fly at altitudes lead decibel reads fall below 50 dB ground level, cautious management step ensures resilience local abundance Carson.

Язык: Английский

Процитировано

3
Decline in semi-arid reptile occurrence following habitat loss and fragmentation DOI Creative Commons
Rebecca E. L. Simpson, Dale G. Nimmo, Lucy J. Wright

и другие.

Wildlife Research, Год журнала: 2023, Номер 51(1)

Опубликована: Июль 24, 2023

Context Habitat loss and fragmentation are leading causes of biodiversity decline worldwide. In Australia, woodland habitat has been extensively cleared fragmented yet there limited research on the effects semi-arid reptiles, impeding conservation planning recovery efforts. Aims We aimed to investigate factors influencing distribution occurrence specialist generalist reptile species a large agricultural holding in south-eastern Australia that experienced fragmentation. Methods Reptiles were surveyed using pitfall funnel traps active searches across 20 sites stratified by land use vegetation type. Twelve established remnant patches embedded within an matrix eight private reserve same property. Generalised linear models used explore relationships between predictor variables describing site, landscape variables. Key results Of 31 detected, modelled. The revealed four species, eastern mallee dragon (Ctenophorus spinodomus), nobbi (Diporiphora nobbi), barred wedge-snouted ctenotus (Ctenotus schomburgkii) shrubland pale-flecked morethia (Morethia obscura), closely associated with reserve, southern spinifex atlas) had strong association (Triodia scariosa) dominated community. Conclusions Reptile specialists particularly sensitive at higher risk local extinction compared generalists. was reduced patches, but also supported suite Implications A susceptible localised extinction. However, presence generalists remnants highlights value retaining representative landscapes. Conservation reptiles will depend retention tracts protected broad range soil types maintain heterogeneity diversity.

Язык: Английский

Процитировано

3
The amphibian's spleen as a source of biomarkers for ecotoxicity assessment: Historical review and trends DOI
Elisabete Tsukada, Cândido Carvalho Rodrigues, Jaqueline C. Jacintho

и другие.

The Science of The Total Environment, Год журнала: 2023, Номер 901, С. 165915 - 165915

Опубликована: Июль 31, 2023

Язык: Английский

Процитировано

2
Leaping Forward or Crawling Backward? Efforts and Biases in Amphibian and Reptile Research on a Megadiverse Faunal Region in the Philippines DOI Open Access

Sumaira S. Abdullah,

Kier Celestial Dela Cruz, Lothy F. Casim

и другие.

Опубликована: Июнь 7, 2023

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

Язык: Английский

Процитировано

1
Rice Fields as Important Habitats for Three Anuran Species—Significance and Implications for Conservation DOI Creative Commons
Simeon Lukanov,

Andrey Kolev,

Blagovesta Dimitrova

и другие.

Animals, Год журнала: 2023, Номер 14(1), С. 106 - 106

Опубликована: Дек. 27, 2023

Agriculture can have different effects on wildlife depending land-use type and extensive/intensive practices. The aim of this study was to establish the significance rice fields in Central Bulgaria as anuran habitats. We used Audiomoth acoustic loggers record calling activity at three sites near city Plovdiv—one shallow pond two fields—from June September 2022 2023. registered most widespread species region—Bufotes viridis, Hyla orientalis Pelophylax ridibundus—and created pattern-matching models for them using free web interface Arbimon, which enabled us perform presence/absence counts abundance estimates. At beginning end vegetation period, water samples were collected analysed 62 substances. Substance concentrations compared between ponds with LC50 data from available literature. 19 21 substances 2023, respectively, within accepted limits, although some metals risk levels, not reflected presence or results indicated that frog related any substances, but it positively correlated daily rainfall higher fields.

Язык: Английский

Процитировано

1