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437 results for “threatened species”
Data for: Global change risks a threatened species due to alteration of predator-prey dynamics
<p>Datasets generated and analyzed within the study area located in the Côte-Nord region of Québec, Canada. To identify species-specific movement rules that were implemented in the IBM, we used empirical data collected for caribou, moose, and wolves over the study area.</p> <p>"DataFinal_SSF_Species_season.csv" (6 files) were used to develop Step Selection Functions for caribou, moose, and wolves to assess habitat selection. <span>SSFs</span><span> were estimated from data for the real animals and provide the relative probability of selection among a set of options based on the comparison of observed and random steps (i.e., the linear segment between successive locations at 8-h interval) using conditional</span><span> logistic regression </span><span>(Fortin et al. 2005). Details on GPS data and SSF models can be found in the article in Appendix S1: Section S2. </span></p> <p>SSFs compare resource characteristics of observed (scored 1) and random (scored 0) locations presented in column case. Habitat characteristics (columns conif_dense, conif_open, mixed, open, other, fire010, fire1020, fire20, cut010, cut1020, cut20) was extracted from the Canadian National Forest Inventory (NFI) forest cover maps. Land cover maps were updated every year by adding roads, recent (<5 years), regenerating (6–20 years) and old (21–50 years) cutblocks/fires based on information provided annually by local forestry companies and from the Canadian National Fire Database (CNFDB). Columns dist0_0.25, dist0.25_0.50, dist0.5_1.00, dist1.00_1.5, and dist1.5 are a set of 5 dichotomous covariables representing the classes of distance to the nearest road (i.e., 1) ≤250 m, 2) 251–500 m, 3) 501–1000 m, 4) 1001–1500 m and 5) >1500 m as the reference category).</p> <p>"DataFinal_IBM_Caribou_Season.csv" (2 files) corresponded to the IBM outputs with the proportion of caribou agent killed (Prop.Caribou_killed, number of caribou killed/total number of caribou), in function of the different scenarios (CC,LUC,Year,Season,Scenario) and the response (Behavioral-Numerical responses or Behavioral response). The columns Prop.CutsRoads, Prop.Fire, Prop.Broadleaf, Homogenization, Isolation correspond to the different variable we tested to predict the cumulative impact of anthropogenic disturbance and climate change. To explore how changes in forest structure and composition impacted the proportion of caribou killed, we used the proportion of areas disturbed by cuts and roads (Prop.CutsRoads), burned areas (Prop.Fire), and landscape characteristics, such as the proportion of deciduous vegetation (Prop.Broadleaf), landscape homogenization (Homogenization) and isolation (Isolation) of mature conifer stands.</p>
FIGURE 2. Erigeron morelensis. A in Erigeron morelensis (Asteraceae): a rediscovery after more than 120 years of a microendemic and threatened species in central Mexico
FIGURE 2. Erigeron morelensis. A. Habitat with Erigeron plants indicated by white circles; B. Basal leaves with reddish to purple petioles, white arrows show immature capitula; C. Habit highlighting basal leaves and a monocephalous stem, white arrows show aboveground stolons; D. Capitula with ligules; E. Phyllaries green and purple with pink ray florets; F. Receptacle with disc and ray florets; G. Individual ray and disc florets; H. Cypsela with orange ribs (black arrow) and bristles; I. Echinate pollen grains. Photos by Rosa Cerros-Tlatilpa and Mónica I. Miguel-Vázquez.
FIGURE 3. Leichhardtia weari. A in A new threatened New Caledonian Leichhardtia (Apocynaceae, Asclepiadoideae, Marsdenieae) species discovered from a TV programme and social media
FIGURE 3. Leichhardtia weari. A. Adaxial view on parts of longitudinally cut corolla; B. Gynostegium in lateral view (lanceolate connective appendages hide the style-head); C. Single corona lobe, adaxial view; D. Single anther, adaxial view; E. Pollinarium; F. Isolated gynoecium with style-head atop. All from D. Fleurot & P. Dayé 905 (UBT, in alc.). Drawn by U. Meve.
FIGURE 4 in A new threatened New Caledonian Leichhardtia (Apocynaceae, Asclepiadoideae, Marsdenieae) species discovered from a TV programme and social media
FIGURE 4. Distribution map of Leichhardtia weari (stars) in New Caledonia in an insert showing the Yandé island and the Mariri creek in blue. Ultramafic substrates are shown in grey. Map by D. Fleurot.
FIGURE 2 in A new threatened New Caledonian Leichhardtia (Apocynaceae, Asclepiadoideae, Marsdenieae) species discovered from a TV programme and social media
FIGURE 2. Maximum Likelihood tree of Marsdenieae. The outgroup, and all Marsdenieae clades except for Leichhardtia are summarized as triangles. Numbers at important nodes indicate bootstrap percentages. New Caledonian clades I and II with yellow background, Australasian clades with grey background. Yandé species L. weari and L. neomicrostoma marked red, other New Caledonian accessions not shown in Liede et al. (2022) marked blue.
FIGURE 1. Leichhardtia weari. A in A new threatened New Caledonian Leichhardtia (Apocynaceae, Asclepiadoideae, Marsdenieae) species discovered from a TV programme and social media
FIGURE 1. Leichhardtia weari. A. Screenshot of the Weari programme "Yandé l'île mystérieuse" from Caledonia channel available on YouTube (https://www.youtube.com/watch?v=4E9Xt8eIEH8) displaying for the first time the new species (originally identified as Leichhardtia neomicrostoma). B. Degraded maquis vegetation in the Mariri creek area; C. A fertile branch with inflorescences; D. Detail of an inflorescence with flowers in lateral view; E. Flower in frontal view displaying the gynostegium. A, C showing Fleurot 838, B Fleurot & Dayé 902, and D–E Fleurot & Dayé 905. Photos by D. Fleurot.
Threatened and endangered bird species and critical habitats in US cities
<p>Cities have classically been viewed as biologically impoverished, homogenized, and simplified systems that harbor low value for biodiversity. However, recent work has demonstrated that cities are critical ecological systems that provide important services to humanity and biodiversity. Cities can play vital roles in conserving biodiversity as well as habitats, providing system stability, and offering direct opportunities for people to engage with nature. In a rapidly changing world with biodiversity loss at an all-time high, cities have the potential to act as sanctuaries for biodiversity conservation. Here, we propose a "cities as sanctuaries" concept, which demonstrates the importance of cities for ecology and conservation, and provide the groundwork for advancing this novel field of study.</p>
Data from: Genetic diversity and population structure of Varronia curassavica: a medicinal polyploid species in a threatened ecosystem
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Data from: Genetic pollution of a threatened native crested newt species through hybridization with an invasive congener in the Netherlands
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Data from: Conservation genetics of Australasian sailfin lizards: flagship species threatened by coastal development and insufficient protected area coverage
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Data from: At risk of population decline? An ecological and genetic approach to the threatened palm species Butia eriospatha (Arecaceae) of southern Brazil
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Demographic responses to climate change in a threatened Arctic species
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Map of the proportion of threatened endemic species per country in relation with environmental and socioeconomic drivers
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Data from: Maintaining animal assemblages through single-species management: the case of threatened caribou in boreal forest
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Data from: Genome-wide SNPs resolve a key conflict between sequence and allozyme data to confirm another threatened candidate species of river blackfishes (Teleostei: Percichthyidae: Gadopsis)
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Data from: The importance of core habitat for a threatened species in changing landscapes
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Data from: Linking phenology to mating system: exploring the reproductive biology of the threatened palm species Butia eriospatha
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Threatened and endangered bird species and critical habitats in US cities
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The Threatened Species No-Go Mapping Tool: An online open-access land-use decision support tool that identifies areas of importance for highly sensitive species of conservation concern
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Newly discovered cichlid fish biodiversity threatened by hybridization with non-native species - Data supporting published version
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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.