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1,288 results for “threatened”
Data from: Can threatened species adapt in restored habitat? No expected evolutionary response in lay date for the New Zealand hihi
Many bird species have been observed shifting their laying date to earlier in the year in response to climate change. However the vast majority of these studies were performed on non-threatened species, less impacted by reduced genetic diversity (which is expected to limit evolutionary response) as a consequence of genetic bottlenecks, drift and population isolation. Here we study the relationship between lay date and fitness, as well as its genetic basis, to understand the evolutionary constraints on phenology faced by threatened species using a recently reintroduced population of the endangered New Zealand passerine, the hihi (Notiomystis cincta). A large discrepancy between the optimal laying date and the mode of laying date creates a strong selection differential of -11.24. The impact of this discrepancy on fitness is principally mediated through survival of offspring from hatchling to fledgling. This discrepancy does not seem to arise from a difference in female quality or a trade-off with lifetime breeding success. We find that start of breeding season depends on female age and average temperature prior to the breeding season. Laying date is not found to be significantly heritable. Overall, our research suggests that this discrepancy is a burden on hihi fitness, which will not be resolved through evolution or phenotypic plasticity. More generally, these results show that threatened species introduced to restored habitats might lack adaptive potential and plasticity to adjust their phenology to their new environment. This constraint is also likely to limit their ability to face future challenges, including climate change.
Figure 2 in A conservation palaeobiological approach to assess faunal response of threatened biota under natural and anthropogenic environmental change
Figure 2.
Fig. 1 in Morphology and architecture of the threatened Florida palm Acoelorrhaphe wrightii (Arecaceae: Coryphoideae)
Fig. 1. - Acoelorrhaphe wrightii ramet height vs. ramet circumference
Figure 4 from: Assis L, von Schimonsky DM, Bichuette ME (2021) The first troglobitic Pseudochthonius Balzan, 1892 (Pseudoscorpiones, Chthoniidae) from the karst area of Serra do Ramalho, Brazil: a threatened species. Subterranean Biology 40: 109-128. https://doi.org/10.3897/subtbiol.40.77451
Figure 4 Pseudochthonius ramalho sp. nov. holotype male, habitus A dorsal view B ventral view.
Data: Individual quality and environmental effects on future reproductive performance of a threatened shorebird
<p>This data repository gives all r-scripts and data for reproducing multi-state live-dead recovery mark-capture-recapture models used in van Irsel et al. (2021). State‐dependent environmental sensitivity of reproductive success and survival in a shorebird. Ibis. <a href="https://eur04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fonlinelibrary.wiley.com%2Fdoi%2Fabs%2F10.1111%2Fibi.13038&data=04%7C01%7C%7Cd8e13473cb7c4d040e7408d9bfc0165a%7Cc7a0410b695b4223af74d14c2e7652e8%7C0%7C0%7C637751653997539459%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=Usi6HdJIa3p7kVUVhwgc%2BC%2FurXnd1IlSRjYqDkrlP6Q%3D&reserved=0">https://onlinelibrary.wiley.com/doi/abs/10.1111/ibi.13038</a></p> <p>The " Instructions Data archive.PDF" describes how to use each of the scripts and which files are needed to re-run the analyses.</p> <p>This is the first release of the scripts and attached data.</p>
Wildlife trade targets colourful birds and threatens the aesthetic value of nature
<p>Additional supplementary material (two figures, 1 table) to support findings of the paper "Wildlife trade targets colourful birds and threatens the aesthetic value of nature".</p>
Figure 8 from: Nualart N, Ibáñez N, Luque P, Pedrol J, Vilar L, Guàrdia R (2017) Dataset of herbarium specimens of threatened vascular plants in Catalonia. PhytoKeys 77: 41-62. https://doi.org/10.3897/phytokeys.77.11542
Figure 8 - Collecting months according the specimens labels.
Figure 7 from: Nualart N, Ibáñez N, Luque P, Pedrol J, Vilar L, Guàrdia R (2017) Dataset of herbarium specimens of threatened vascular plants in Catalonia. PhytoKeys 77: 41-62. https://doi.org/10.3897/phytokeys.77.11542
Figure 7 - Collecting years according the specimens labels.
Figure 2 from: Nualart N, Ibáñez N, Luque P, Pedrol J, Vilar L, Guàrdia R (2017) Dataset of herbarium specimens of threatened vascular plants in Catalonia. PhytoKeys 77: 41-62. https://doi.org/10.3897/phytokeys.77.11542
Figure 2 - Origin herbarium of the specimens included in the dataset.
Figure 1 from: Nualart N, Ibáñez N, Luque P, Pedrol J, Vilar L, Guàrdia R (2017) Dataset of herbarium specimens of threatened vascular plants in Catalonia. PhytoKeys 77: 41-62. https://doi.org/10.3897/phytokeys.77.11542
Figure 1 - Location of Catalonia and elevation map of the study area.
Figure 5 from: Nualart N, Ibáñez N, Luque P, Pedrol J, Vilar L, Guàrdia R (2017) Dataset of herbarium specimens of threatened vascular plants in Catalonia. PhytoKeys 77: 41-62. https://doi.org/10.3897/phytokeys.77.11542
Figure 5 - Distribution map of the specimens for UTM grid of 10 km2 for each herbarium.
Figure 4 from: Nualart N, Ibáñez N, Luque P, Pedrol J, Vilar L, Guàrdia R (2017) Dataset of herbarium specimens of threatened vascular plants in Catalonia. PhytoKeys 77: 41-62. https://doi.org/10.3897/phytokeys.77.11542
Figure 4 - Distribution map of the number of specimens for UTM grid of 10 km2.
Figure 3 from: de Lange PJ, Smissen RD, Rolfe JR, Ogle CC (2016) Systematics of Simplicia Kirk (Poaceae, Agrostidinae) – an endemic, threatened New Zealand grass genus. PhytoKeys 75: 119-144. https://doi.org/10.3897/phytokeys.75.10328
Figure 3 - NeighborNet graph for AFLP data with all automatically scored polymorphisms.
Figure 4 from: de Lange PJ, Smissen RD, Rolfe JR, Ogle CC (2016) Systematics of Simplicia Kirk (Poaceae, Agrostidinae) – an endemic, threatened New Zealand grass genus. PhytoKeys 75: 119-144. https://doi.org/10.3897/phytokeys.75.10328
Figure 4 - NeighborNet graph for reduced AFLP data with reproduced polymorphisms only.
Figure 1 from: de Lange PJ, Smissen RD, Rolfe JR, Ogle CC (2016) Systematics of Simplicia Kirk (Poaceae, Agrostidinae) – an endemic, threatened New Zealand grass genus. PhytoKeys 75: 119-144. https://doi.org/10.3897/phytokeys.75.10328
Figure 1 - Distribution of Simplicia species and showing locations discussed in text.
Figure 7 from: de Lange PJ, Smissen RD, Rolfe JR, Ogle CC (2016) Systematics of Simplicia Kirk (Poaceae, Agrostidinae) – an endemic, threatened New Zealand grass genus. PhytoKeys 75: 119-144. https://doi.org/10.3897/phytokeys.75.10328
Figure 7 - Holotype of Simplicia felix de Lange, J.R.Rolfe, Smissen & Ogle.
Data from: Origin of a cryptic lineage in a threatened reptile through isolation and historical hybridization
Identifying phylogenetically distinct lineages and understanding the evolutionary processes by which they have arisen are important goals of phylogeography. This information can also help define conservation units in endangered species. Such analyses are being transformed by the availability of genomic-scale data sets and novel analytical approaches for statistically comparing different historical scenarios as causes of phylogeographic patterns. Here, we use genomic-scale restriction-site-associated DNA sequencing (RADseq) data to test for distinct lineages in the endangered Eastern Massasauga Rattlesnake (Sistrurus catenatus). We then use coalescent-based modeling techniques to identify the evolutionary mechanisms responsible for the origin of the lineages in this species. We find equivocal evidence for distinct phylogenetic lineages within S. catenatus east of the Mississippi River, but strong support for a previously unrecognized lineage on the western edge of the range of this snake, represented by populations from Iowa, USA. Snakes from these populations show patterns of genetic admixture with a nearby non-threatened sister species (Sistrurus tergeminus). Tests of historical demographic models support the hypothesis that the genetic distinctiveness of Iowa snakes is due to a combination of isolation and historical introgression between S. catenatus and S. tergeminus. Our work provides an example of how model-based analysis of genomic-scale data can help identify conservation units in rare species.
Figure 8 from: Hicks A (2015) In the shadow of a megalopolis, a new Flexamia from a threatened grass species in the New Jersey Pine Barrens (Hemiptera, Cicadellidae, Deltocephalinae, Paralimnini). ZooKeys 511: 69-79. https://doi.org/10.3897/zookeys.511.9572
Figure 8 - Aedeagus, connective, ventral aspect.
Figure 2 from: Hicks A (2015) In the shadow of a megalopolis, a new Flexamia from a threatened grass species in the New Jersey Pine Barrens (Hemiptera, Cicadellidae, Deltocephalinae, Paralimnini). ZooKeys 511: 69-79. https://doi.org/10.3897/zookeys.511.9572
Figure 2 - Habitus, male, lateral aspect.
Figure 3 from: Hicks A (2015) In the shadow of a megalopolis, a new Flexamia from a threatened grass species in the New Jersey Pine Barrens (Hemiptera, Cicadellidae, Deltocephalinae, Paralimnini). ZooKeys 511: 69-79. https://doi.org/10.3897/zookeys.511.9572
Figure 3 - Habitus, female, dorsal aspect.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.