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403 results for “captivity”
Figure 13 from: Yanwirsal H, Bartsch P, Kirschbaum F (2017) Reproduction and development of the asian bronze featherback Notopterus notopterus (Pallas, 1769) (Osteoglossiformes, Notopteridae) in captivity. Zoosystematics and Evolution 93(2): 299-324. https://doi.org/10.3897/zse.93.13341
Figure 13 - Stage 27, day 9; larger magnification (see also Fig. 12); Pfb– Pectoral fin buds; m– mesencephalon; lj– lower jaw; nch – notochord; Ao – aorta dorsalis; Vsi – vena subintestinalis; Vc – vena caudalis; af – anal fin; g – gills; h – heart; lev – left efferent vena vitellina; ys – yolk sac. Scale bar = 2 mm.
Figure 12 from: Yanwirsal H, Bartsch P, Kirschbaum F (2017) Reproduction and development of the asian bronze featherback Notopterus notopterus (Pallas, 1769) (Osteoglossiformes, Notopteridae) in captivity. Zoosystematics and Evolution 93(2): 299-324. https://doi.org/10.3897/zse.93.13341
Figure 12 - Hatching process and the free embryonic stages in Notopterus notopterus. (a) Stage 24: just hatched-embryo after breaking the weak egg envelope, caudal part is relieved, anterior part still stuck in the remnant of the egg-envelope, note the emergence of dorsal and caudal fin anlage; yolk sac (yc) still covered with egg envelope, 168h:05min; (b) Stage 25: rupture the complete egg-envelope and free anterior part of the embryo, 168h:25min; note the tiny pectoral fin bud (black arrowhead); (c) Stage 26: jaw and branchial arches formed, day 8; (d) Stage 27: mouth opening, day 10; note the emergence of the swim bladder vesicle (sb); white arrowheads point to gradual development of dorsal fin. Scale bar = 5 mm.
Figure 3 from: Yanwirsal H, Bartsch P, Kirschbaum F (2017) Reproduction and development of the asian bronze featherback Notopterus notopterus (Pallas, 1769) (Osteoglossiformes, Notopteridae) in captivity. Zoosystematics and Evolution 93(2): 299-324. https://doi.org/10.3897/zse.93.13341
Figure 3 - Course of the tested environmental factors during 331 days: conductivity (C), water level (WL) and temperature (T) in breeding tank II containing one female and one male Notopterus notopterus. Irregular spawning intervals were observed for 6 times within a 6-month experimental period. The breeding experiment was started after 40 days of acclimatization. Note the first swollen belly of the female (Arrow). *Asterisks refer to observed spawnings.
Microsatellite genotype data for captive and wild Arabian leopards
<p>Genetic diversity underpins evolutionary potential that is essential for the long-term viability of wildlife populations. Captive populations harbour genetic diversity potentially lost in the wild, which could be valuable for release programs and genetic rescue. The Critically Endangered Arabian leopard (<em>Panthera pardus nimr</em>) has disappeared from most of its former range across the Arabian Peninsula, with fewer than 120 individuals left in the wild, and an additional 64 leopards in captivity. We (i) examine genetic diversity in the wild and captive populations to identify global patterns of genetic diversity and structure; (ii) estimate the size of the remaining leopard population across the Dhofar mountains of Oman using spatially explicit capture-recapture models on DNA and camera trap data, and (iii) explore the impact of genetic rescue using three complementary computer modelling approaches. We estimated a population size of 51 (95% CI: 32–79) in the Dhofar mountains and found that 8 out of 25 microsatellite alleles present in eight loci in captive leopards were undetected in the wild. This includes two alleles present only in captive founders known to have been wild-sourced from Yemen, which suggests that this captive population represents an important source for genetic rescue. We then assessed the benefits of reintroducing novel genetic diversity into the wild population, as well as the risks of elevating the genetic load through the release of captive-bred individuals. Simulations indicate that genetic rescue can improve the long-term viability of the wild population by reducing its genetic load and realised load. The model also suggests that the genetic load has been partly purged in the captive population, potentially making it a valuable source population for genetic rescue. However, the greater loss of its genetic diversity could exacerbate genomic erosion of the wild population during a rescue program, and these risks and benefits should be carefully evaluated. The next step in the recovery plan of the Arabian leopard is to empirically validate these conclusions, implement and monitor a genomics-informed management plan, and optimise a strategy for genetic rescue as a tool to recover Arabia's last big cat.</p>
Figure 4 in Breeding and reproductive behaviour of the neo-tropical opossum, Didelphis marsupialis insularis, Allen 1902 under captive conditions
Figure 4. Map of Trinidad and Tobago showing the locations where the adult D. m. insularis were trapped.
Figure 1 in Gastrointestinal parasites in captive and free-living wild birds in Goiania Zoo
Figure 1. Helminth eggs found in the feces of captive and free-living birds at Goiania Zoo. (a) unidentified nematode in a fecal sample from Amazona amazonica, Bar = 20μm; (b) Ascarididae family egg found in Pavo cristatus nigripennis fecal samples, Bar = 20μm; (c) Capillaria sp. egg identified in Ara chloropterus fecal sample, Bar = 20μm; (d) Capillaria venusta eggs identified in Ramphastos tucanus fecal sample, Bar = 20μm; (e) Capillaria spp. egg identified in Penelope jacucaca fecal sample, Bar = 20μm; Eustrongylides spp. (f) and Diphyllobothrium spp. (g) eggs found in Ardea alba fecal sample, Bar = 20μm; Ascaridia spp. eggs found in Brotogeris chiriri (h), Bar = 20μm, Rhea americana (i) and Dromaius novaehollandiae (j) fecal samples, Bar = 20μm; (k) Diphyllobothrium sp. egg found in Nycticorax nycticorax; Capillaria plagiaticia egg (l) and Eimeria sp. oocyst (m) found in Anodorhynchus hyacinthinus fecal sample, Bar = 10 μm; and (n) Capillaria plagiaticia egg found in Ara sp. fecal sample, Bar = 20μm.
Figure 8 in Reproductive diseases in captive Agoutis (Dasyprocta leporina)
Figure 8. Fetuses found in the left horn weighing 165g and 235g (Note the distorted face on the bottom fetus).
Figure 3. Two agouti offspring weighing 200 g in Reproductive diseases in captive Agoutis (Dasyprocta leporina)
Figure 3. Two agouti offspring weighing 200 g each found in the left uterine horn. (Source: Jones et al., 2020).
Figure 1 in On the life expectancy of a male Chilean rose tarantula, Grammostola rosea (Walckenaer, 1837) (Araneae: Theraphosidae) reared in captivity
Figure 1. Male specimen of Grammostola rosea. A. Dorsal view. Opisthosoma and prosoma lengths are indicated. B. Ventral view. C. Male pedipalp bulb in retrolateral (I) and prolateral views (II). / Espécimen macho de Grammostola rosea. A. Vista dorsal. Longitudes de opistosoma y prosoma indicadas. B. Vista ventral. C. Bulbo del pedipalpo del macho en vistas retrolateral (I) y prolateral (II).
Figures 1-3. Harpactor angulosus. 1-2 in Predation strategies of Harpactor angulosus (Lepeletier & Serville, 1825) (Hemiptera: Reduviidae) on Cladomorphus phyllinus Gray, 1835 (Phasmatodea: Phasmatidae) in captivity
Figures 1-3. Harpactor angulosus. 1-2. Specimens just after moulting, near its exuvia and during the imaginal moulting, respectively. 3. Male in dorsal view, reared since third instar and fed on Cladomorphus phyllinus specimens. / 1-2. Espécimenes recien mudados, cerca de su exuvia y durante la muda imaginal, respectivamente. 3. Macho en vista dorsal, criado desde el tercer estadio y alimentado con ejemplares de Cladomorphus phyllinus.
Figure 9 in Predation strategies of Harpactor angulosus (Lepeletier & Serville, 1825) (Hemiptera: Reduviidae) on Cladomorphus phyllinus Gray, 1835 (Phasmatodea: Phasmatidae) in captivity
Figure 9. Fourth instar nymph of Harpactor angulosus feeding on the arolium of a Cladomorphus phyllinus specimen. / Ninfa de cuarto estadio de Harpactor angulosus alimentándose del arolio de un espécimen de Cladomorphus phyllinus.
Figure 2 in Reproduction, postnatal development, and social behavior of Ellobius lutescens Thomas 1897 (Mammalia: Rodentia) in captivity
Figure 2. The graphics of mean mass and linear measurements of E. lutescens from birth to 98 days of age (ToL: total length, HFL: hind foot length, TL: tail length).
Data from: MHC-associated mate choice under competitive conditions in captive versus wild Tasmanian devils
Mate choice contributes to driving evolutionary processes when animals choose breeding partners that confer genetic advantages to offspring, such as increased immunocompetence. The major histocompatibility complex (MHC) is an important group of immunological molecules, as MHC antigens bind and present foreign peptides to T-cells. Recent studies suggest that mates may be selected based on their MHC profile, leading to an association between an individual's MHC diversity and their breeding success. In conservation, it may be important to consider mate choice in captive breeding programs, as this mechanism may improve reproductive rates. We investigated the reproductive success of Tasmanian devils in a group housing facility to determine whether increased MHC-based heterozygosity led individuals to secure more mating partners and produce more offspring. We also compared the breeding success of captive females to a wild devil population. MHC diversity was quantified using 12 MHC-linked microsatellite markers, including 11 previously characterised markers and one newly identified marker. Our analyses revealed that there was no relationship between MHC-linked heterozygosity and reproductive success either in captivity or the wild. The results of this study suggest that, for Tasmanian devils, MHC-based heterozygosity does not produce greater breeding success, and that no specific changes to current captive management strategies are required with respect to preserving MHC diversity.
Figure 1 from: Zhang F, Wu S, Zou C, Wang Q, Li S, Sun R (2016) A note on captive breeding and reproductive parameters of the Chinese pangolin, Manis pentadactyla Linnaeus, 1758. ZooKeys 618: 129-144. https://doi.org/10.3897/zookeys.618.8886
Figure 1 - Breast and waxy secretion covering the nipple surface of the female pangolin MP8 for the parturition the day before (by Fuhua Zhang, 18 Oct 2011). a breast b nipple c waxy secretion covering the nipple surface.
Figure 2 from: Zhang F, Wu S, Zou C, Wang Q, Li S, Sun R (2016) A note on captive breeding and reproductive parameters of the Chinese pangolin, Manis pentadactyla Linnaeus, 1758. ZooKeys 618: 129-144. https://doi.org/10.3897/zookeys.618.8886
Figure 2 - Body weight change of the female pangolin MP8 during the gestation period (from 8 Mar to 19 Oct 2011). A duration for MP8 housing with MP1 together B date of MP8 giving birth.
Supplementary material 1 from: Heinrich S, Gomez L, Green J, de Waal L, Jakins C, D'Cruze N (2022) The extent and nature of the commercial captive lion industry in the Free State province, South Africa. Nature Conservation 50: 203-225. https://doi.org/10.3897/natureconservation.50.85292
Supplementary tables and figures
Data for: Altered wing phenotypes of captive‐bred migratory birds lower post‐release fitness
<p><span>Captive-breeding and release to the wild is a globally important conservation tool. However, captivity can result in phenotypic changes that incur post-release fitness costs, especially if they affect strenuous or risky behaviors. Bird wing shape is critical for migration success and suboptimal phenotypes are strongly selected against. I demonstrate surprising plasticity of bird wing phenotypes in captivity for 4/16 studied species. In a model species, captive-born juveniles with wild wing phenotypes (a 1mm longer distal primary flight feather) survived post-release at 2.7 times the rate of those with captive phenotypes (i.e. a shorter distal feather). Subtle phenotypic changes and their fitness impacts are more common than widely realized because they are easily overlooked. To improve captive-breeding for conservation, practitioners must surveil phenotypic changes and find ways to mitigate them.<br></span></p>
Fig. 3. Female Parathelphusa reticulata. a in Ex-situ conservation of the critically endangered swamp forest crab Parathelphusa reticulata Ng, 1990 (Decapoda: Brachyura: Gecarcinucidae): observations on its reproduction and biology in captivity
Fig. 3. Female Parathelphusa reticulata. a, female Parathelphusa reticulata with orange yolky eggs on land; b, female Parathelphusa reticulata carrying her crablets in water. Photographs: Daniel J. J. Ng.
Annotated recordings of two captive groups of rooks, with individual identity and context
<p>This dataset was used in our paper "Vocal complexity in a socially complex corvid: gradation, diversity, and lack of common call repertoire in male rooks" (DOI will be added on publication).</p> <p>If you use this dataset in your work, please cite the article (citation to be added on publication).</p> <p>The dataset includes audio recording (stored in "audio.zip") and annotations (stored in "labels.zip" and "clean labels.zip), collected between 2020 and 2022 in two captive groups of rooks in outdoor aviaries, one in Strasbourg (France) and one in Cambridge (UK). The audio was compressed losslessly to FLAC files from the original uncompressed WAV to fit with the Zenodo 50GB limit. They can be converted back to WAV with the Python soundfile package or with FFMPEG from the command line if needed (though some conversion will probably fail due to the ~4GB file size limit on WAV).</p> <p>NOTE: To ease checking data formatting without downloading the entire dataset, the "example.zip" folder contains one audio file and its associated annotations.</p> <p>Two different versions of the annotations files are included: "clean_labels.zip" includes the TSV files used in the analysis for the paper, and "labels.zip" includes the TXT files used for annotation, which can be opened along with the audio files in the Audacity software for reviewing. Each audio file corresponds to one TXT and one TSV file, with corresponding files sharing the same filename. Filename format is 'YYYYMMDD_HHMMSS(_StartXXXX)', meaning the date and time of the beginning of the recording; optionally, "StartXXXX" means that the original recording was split into multiple files, with each file starting XXXX seconds after the start of the original recording.</p> <p>TSV annotations include, for each recorded rook vocalisations: time stamps (Start, End columns), emitter identity (Source column), context of emission (Event column; these annotations are often abbreviations, but the most important distinction is between calls and songs, denoted by the presence or absence of "sing" in the Event cell). and additional comments (Comment column). Special cases for annotations include Inc (unknown single individual vocalised but could not be identified), Pls (several individuals vocalised but overlapped too much to be separated), Comment (for events of note that were not vocalisations), and Ignore (this was used for sections that could not be checked for annotations for any reason; vocalisations may be included but were not annotated).</p> <p>TXT annotations include the same information but the Source and Event columns are merged and the corresponding Comments are additional markers between the vocalisation timestamps, to be compatible with Audacity. This is best viewed in the example file.</p> <p>Additional info regarding the individuals can be found in Table S1 of the paper.</p> <p> </p> <p>The code used for the analysis is hosted at <a href="https://gitlab.com/kimartin/cluster_rook_vocs">https://gitlab.com/kimartin/cluster_rook_vocs</a>.</p> <p>For questions on the dataset, please reach out to <a href="mailto:killian.martin@ens-lyon.fr">killian.martin@ens-lyon.fr</a></p>
Supplementary material 1 from: Saldarriaga-Gómez AM, Ardila-Robayo MC, Medem F, Vargas-Ramírez M (2023) Hope is the last thing lost: Colombian captive-bred population of the critically endangered Orinoco crocodile (Crocodylus intermedius) is a genetic reservoir that could help to save the species from extinction. Nature Conservation 53: 85-103. https://doi.org/10.3897/natureconservation.53.104000
Supplementary information
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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.