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272 results for “crocodiles”
Figure 2 in Status and conservation of crocodiles in the Koshi Tappu Wildlife Reserve, eastern Nepal
Figure 2. Conservation of crocodile according community
Image 1 in Status and conservation of crocodiles in the Koshi Tappu Wildlife Reserve, eastern Nepal
Image 1. Transects in the study area
Crocodile
Tactile bas-relief teaching table from the middle of the 19th century of a crocodile. The table was used as a tactile teaching relief in the biology and naturalhistory lessons at the Royal Institute for the Blind in Copenhagen during the second half of the 19th century. The table was most likely made in Germany. Source: Objaverse 1.0 / Sketchfab
Crocodile tracks and trackways: Photogrammetric models and photo datasets.
<p>3D models and photosets of Crocodile tracks and trackways</p> <p>The files in this dataset comprise zip folders containing a set of photos, and a textured mesh, of trackways made by 12 species of crocodile.</p> <p>The physical casts were originally described in:</p> <p>Milàn, J. and R. Hedegaard (2010). "Interspecific variation in tracks and trackways from extant crocodiles." New Mexico Museum of Natural History and Science Bulletin <strong>51</strong>: 15-30</p> <p>The data presented here are newly generated photogrammetric models, along with the associated photo sets. The models themselves have been reduced in order to keep file size manageable, but all photos have been included at full resolution so that others can produce their own high-res models from them.</p> <p>Included data are as follows:</p> <p>Alligator sinensis | (Chinese Alligator) | 15-20 kg, 160 cm<br /> Caiman crocodylus | (Spectacled caiman) | 12 kg, 130 cm<br /> Caiman latirostris | (Broad-nosed caiman) | 13 kg, 135 cm (pregnant)<br /> Caiman latirostris II | (Broad-nosed caiman) | 1.5 kg, 70 cm<br /> Crocodylus cataphractus | (Slender-snouted crocodile) | 7 kg, 149 cm<br /> Crocodylus johnsoni | (Fresh water crocodile) | 5 kg, 112 cm<br /> Crocodylus johnsoni II | (Fresh water crocodile) | 25 kg, 90 cm<br /> Crocodylus novaeguineae | (New Guinea crocodile) | 15 kg, 175 cm<br /> Crocodylus rhombifer | (Cuban crocodile) | 2 kg, 80 cm<br /> Crocodylus siamensis | (Siamese crocodile) | 10 kg, 140 cm<br /> Gavialis gagesticus | (Gharial) | 40 kg, 225 cm<br /> Osteolaemus tatraspis | (Dwarf crocodile) | 2 kg, 79 cm<br /> Paleosuchus palpebrosus | (Dwarf caiman) | 15 kg, 140 cm<br /> Paleosuchus palpebrosus II | (Dwarf caiman) | 0.5 kg, 50 cm<br /> Tomistoma schlegelii (1x Manus, 2 x Pes) | (False gharial) | 270 cm</p> <p> </p>
Magnetic Resonance Imaging Scan of the Brain of a Nile Crocodile (Crocodylus niloticus)
<p>Magnetic Resonance Imaging Scan of the Brain of a Nile Crocodile (<i>Crocodylus niloticus</i>) from http://braincatalogue.org/Nile_crocodile</p>
Crocodile
Collection and item number: Probably the Donald and Olive Kessler Collection, #172 Origin: West Africa, thought to be Liberian, c. 1961 Media: Wood This item was 3D scanned using a [Creaform Go Scan 50.](https://onlineresourcesinc.com/products/academia-50/) Source: Objaverse 1.0 / Sketchfab
Data from: How to date a crocodile – estimation of neosuchian clade ages and a comparison of four time-scaling methods
<p>Clade ages within the crocodylomorph clade Neosuchia have long been debated. Molecular and morphological studies have yielded remarkably divergent results. Despite recent advances, there has been no comprehensive relative comparison of the major time calibration methods available to estimate clade ages based on morphological data. We used four methods (cal3, Extended Hedman [EH], smoothed Ghost-Lineage-Analysis [sGLA] and the Fossilised Birth-Death model [FBD]) to date clade ages derived from a published crocodylomorph supertree and a new neosuchian phylogeny. All time-scaling methods applied here agree on the origination of Neosuchia during the Late Triassic/Early Jurassic, and the presence of the major extant eusuchian groups (Crocodyloidea, Gavialoidea, Alligatoroidea, and Caimaininae) by the end of the Late Cretaceous. The number of distinct lineages present before the K/Pg boundary is less certain, with support for two competing scenarios in which Crocodylinae, Tomistominae and Diplocynodontinae either: 1) diverged from other eusuchian lineages before the K/Pg boundary; or 2) evolved during a 'burst' of diversification after the K/Pg event. Cal3 and FBD are identified as the most suitable methods for time-scaling phylogenetic trees dominated by fossil taxa. Extended Hedman estimates are substantially older than the others, with larger standard deviations and a strong vulnerability to taxon sampling and topological changes. sGLA has similar problems and cannot be recommended either. We conclude that a detailed understanding of phylogenetic relationships, tree reconstruction methods, and good taxonomic coverage (in particular the inclusion of the oldest taxon in each clade) is essential when evaluating the results of such dating analyses.</p>
Current flow files mapped by Omniscape representing the dispersal of saltwater crocodiles
<p>This folder contains raster data in asc format to be used with Omniscape to visualise predicted flow across a study area raster, using the core breeding habitat cells ('Saltwater crocodile core breeding habitat cells.asc') for saltwater crocodiles (<em>Crocodylus porosus</em>) in the Northern Territory, Australia, the optimized resistance surface ('Saltwater crocodile optimized resistance surface.asc'), and core habitat cells ('Saltwater crocodile core habitat cells.asc') as ground nodes, effectively representing locations where current could 'settle'.</p>
Supplementary material related to the thesis "Perception of airborne sounds and vibrations in crocodiles"
<p>This repository contains all datasets, statistical codes and videos examples for the 4 different studies conducted during my thesis. </p>
Taste aversion training can educate free-ranging crocodiles against toxic invaders
<p>Apex predators play critical ecological roles, making their conservation a high priority. In tropical Australia, some populations of freshwater crocodiles (<em>Crocodylus johnstoni</em>) have plummeted by >70% due to lethal ingestion of toxic invasive cane toads (<em>Rhinella marina</em>). Laboratory-based research has identified conditioned taste aversion (CTA) as a way to discourage consumption of toads. To translate those ideas into landscape-scale management, we deployed 2,395 baits (toad carcasses with toxin removed and containing a nausea-inducing chemical) across four gorge systems in north-western Australia and monitored bait uptake with remote cameras. Crocodile abundance was quantified with surveys. Free-ranging crocodiles rapidly learned to avoid toad baits but continued to consume control (chicken) baits. Toad invasion at our sites was followed by high rates of crocodile mortality (especially for small individuals) at a control site but not at nearby treatment sites. In areas with high connectivity to other waterbodies, repeated baiting over successive years had continuing positive impacts on crocodile survival. In summary, we succeeded in buffering the often-catastrophic impact of invasive cane toads on apex predators.</p>
Fig. 27 in Contributions to the herpetofauna of the Angolan Okavango-Cuando-Zambezi River drainages. Part 2: Lizards (Sauria), chelonians, and crocodiles
Fig. 27. Juvenile Lubuya ivensii (PEM R23422) from Cuando River source. Photo by Werner Conradie.
Fig. 36 in Contributions to the herpetofauna of the Angolan Okavango-Cuando-Zambezi River drainages. Part 2: Lizards (Sauria), chelonians, and crocodiles
Fig. 36. Adult male Trachylepis wahlbergii from Cuito town. Photo by Werner Conradie.
Fig. 39 in Contributions to the herpetofauna of the Angolan Okavango-Cuando-Zambezi River drainages. Part 2: Lizards (Sauria), chelonians, and crocodiles
Fig. 39. Juvenile Crocodylus niloticus from Quembo River bridge camp. Photo by Chad Keates.
Fig. 43 in Contributions to the herpetofauna of the Angolan Okavango-Cuando-Zambezi River drainages. Part 2: Lizards (Sauria), chelonians, and crocodiles
Fig. 43. Adult female Kinixys belliana from Samanunga village. Photo by Werner Conradie.
Map 22 in Contributions to the herpetofauna of the Angolan Okavango-Cuando-Zambezi River drainages. Part 2: Lizards (Sauria), chelonians, and crocodiles
Map 22. Distribution of Meroles squamulosus in Angola.
Fig. 20 in Contributions to the herpetofauna of the Angolan Okavango-Cuando-Zambezi River drainages. Part 2: Lizards (Sauria), chelonians, and crocodiles
Fig. 20. Adult male Ichnotropis capensis from Lungwebungu River camp. Photo by Werner Conradie.
Fig. 10 in Contributions to the herpetofauna of the Angolan Okavango-Cuando-Zambezi River drainages. Part 2: Lizards (Sauria), chelonians, and crocodiles
Fig. 10. Adult male Hemidactylus nzingae (PEM R23991) from Cuquema River. Photo by Werner Conradie.
Fig. 31 in Contributions to the herpetofauna of the Angolan Okavango-Cuando-Zambezi River drainages. Part 2: Lizards (Sauria), chelonians, and crocodiles
Fig. 31. Adult unsexed Trachylepis bayonii from Cuito River source. Photo by Werner Conradie.
Fig. 12 in Contributions to the herpetofauna of the Angolan Okavango-Cuando-Zambezi River drainages. Part 2: Lizards (Sauria), chelonians, and crocodiles
Fig. 12. Adult female Lygodactylus chobiensis from Luvu River. Photo by Chad Keates.
Map 9 in Contributions to the herpetofauna of the Angolan Okavango-Cuando-Zambezi River drainages. Part 2: Lizards (Sauria), chelonians, and crocodiles
Map 9. Distribution of Hemidactylus mabouia in Angola.
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.