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28 results for “mobile species”
Predicting harvest impact and establishment success when translocating highly mobile and endangered species
<p>Harvesting individuals for translocations can negatively impact source populations, a critical challenge for species reduced to small populations. Consequently, translocation cohorts often remain small, reducing the establishment probability at the destination. Balancing the potential benefits and risks of such translocations is further complicated by philopatry and natural metapopulation dynamics if the target species is highly mobile. These challenges highlight the importance of translocation feasibility assessments, but such assessments often remain qualitative to date. The critically endangered Kuaka (Whenua Hou Diving Petrel; Pelecanoides whenuahouensis) is a philopatric, highly mobile seabird that could benefit from conservation translocations, but only one small population remains. Through expert elicitations with a user-friendly Shiny app, we developed a novel metapopulation extension to an integrated population model fitted to long-term data, allowing us to simultaneously project harvest impact on the source and establishment of destination populations under alternative translocation scenarios, while accounting for philopatry and metapopulation dynamics. Establishment of a destination population without excessive impact on the source was possible, but subject to uncertainty about philopatry and metapopulation dynamics. Accounting for juveniles returning to the source post-translocations reduced impact on the source, but also decreased establishment at the destination. Natural movements of adults and juveniles between source and destination populations were predicted to modulate effects of different harvest intensities. Synthesis and application: Using state-of-the art integrated population models and expert elicitations, we illustrate how translocation feasibility can be evaluated transparently and quantitatively, even when targeting endangered, philopatric, and highly mobile species. Our approach is a considerable improvement on current qualitative feasibility assessments. However, we also illustrate that, ultimately, the favoured translocation strategy depends on balancing biological and other fundamental objectives inherent to translocations. Therefore, the ideal strategy cannot be determined solely mathematically, and feasibility assessments should incorporate explicit value statements. Our methodology is applicable to any future translocation scenario.</p>
FIG. 4. — s in Folsomia najtae n. sp. (Collembola: Isotomidae) - a new species with 'mobile' forms from the Far East of Russia
FIG. 4. — s-chaetae and macrochaetae on Abd. IV-VI of F. setula Christiansen & Tucker, 1977 (A) and F. orientalis Martynova, 1977 (B). Abbreviation: see Material and methods. Scale bar: 0.1 mm.
FIG. 3. — A-D, Folsomia najtae n in Folsomia najtae n. sp. (Collembola: Isotomidae) - a new species with 'mobile' forms from the Far East of Russia
FIG. 3. — A-D, Folsomia najtae n. sp.: variability of PAO (A); s-chaetae and macrochaetae on tergites of Abd.II-VI (B) and Th.II,III and Abd.I (C), apical part of leg 3 (D); E, F, F. setula Christiansen & Tucker, 1977, dens, lateral view (E), PAO (F); G, F. orientalis Martynova, 1977 furca, lateral view. Abbreviations: see Material and methods. Scale bars: A, D-F, 0.03 mm; B, C, 0.02 mm; G, 0.05 mm.
FIG. 2. — Folsomia najtae n in Folsomia najtae n. sp. (Collembola: Isotomidae) - a new species with 'mobile' forms from the Far East of Russia
FIG. 2. — Folsomia najtae n. sp.: A, B, appearance of juvenile specimens of normal (A) and mobile (B) forms (both of about 0.9 mm); C, D, furca of normal (C) and mobile (D) forms; E, G, anterior half of head in normal (E), mobile form (F), and juvenile individual (G) of 0.6 mm length. Abbreviations: see Material and methods. Scale bars: A, B, 0.3 mm; C-G, 0.05 mm.
Predicting harvest impact and establishment success when translocating highly mobile and endangered species
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Fine-scale intraspecific niche partitioning in a highly mobile, marine megafauna species: implications for ecology and conservation
<p>A species may partition its realized ecological niche along bionomic and/or scenopoetic axes due to intraspecific competition for limited resources. How partitioning manifests depends on resource needs and availability by and for the partitioning groups. Here we demonstrate the utility of analyzing short- and long-term stable carbon and nitrogen isotope ratios from imperiled marine megafauna to elucidate realized niche partitioning in these species. We captured 113 loggerhead (<em>Caretta</em> <em>caretta</em>) sea turtles at a high-use area near Crystal River, Florida, between 2016–2022, comprising 53 subadults, 10 adult males, and 50 adult females. Isotopic analyses indicated that loggerheads partition their realized ecological niche by life stage, along a scenopoetic axis. Most adults likely forage and reside in shallow areas of the study site, with most subadults displaying habitat switching between deeper locations to forage and shallower locations to rest. Some subadults, like adults, also forage and reside in shallow areas, and may display behaviors to avoid intraspecific competition. Analysis of stable isotopes with different turnover rates was critical for this characterization of intraspecific niche partitioning in loggerhead turtles, which has direct implications for ongoing research and conservation efforts for this and other imperiled species.</p>
Fine-scale intraspecific niche partitioning in a highly mobile, marine megafauna species: implications for ecology and conservation
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Explaining the worldwide distributions of two highly mobile species: Cakile edentula and C. maritima
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A satellite-based mobile warning system to reduce interactions with an endangered species
<p>Earth observing satellites are a major research tool for spatially explicit ecosystem nowcasting and forecasting. However, there are practical challenges when integrating satellite data into usable real-time products for stakeholders. The need of forecast immediacy and accuracy means that forecast systems must account for missing data and data latency while delivering a timely, accurate and actionable product to stakeholders. This is especially true for species that have legal protection. Acipenser oxyrinchus oxyrinchus (Atlantic Sturgeon) were listed under the United States Endangered Species Act in 2012, which triggered immediate management action to foster population recovery and increase conservation measures. Building upon an existing research occurrence model, we developed an Atlantic Sturgeon forecast system in the Delaware Bay, U.S.A. To overcome missing satellite data due to clouds and produce a three-day forecast of ocean conditions, we implemented Data Interpolating Empirical Orthogonal Functions (DINEOF) on daily observed satellite data. We applied the Atlantic Sturgeon research model to the DINEOF output and found that it correctly predicted Atlantic Sturgeon telemetry occurrences over 90% of the time within a three-day forecast. A similar framework has been utilized to forecast harmful algal blooms, but to our knowledge, this is the first time a species distribution model has been applied to DINEOF gap-filled data to produce a forecast product for fishes. To implement this product into an applied management setting, we worked with state and federal organizations to develop real-time and forecasted risk maps in the Delaware River Estuary for both state level managers and commercial fishers. An automated system creates and distributes these risk maps to subscribers' mobile devices, highlighting areas that should be avoided to reduce interactions. Additionally, an interactive web interface allows users to plot historic, current, future, and climatological risk maps as well as the underlying model output of Atlantic Sturgeon occurrence. The mobile system and web tool provide both stakeholders and managers real-time access to estimated occurrences of Atlantic Sturgeon, enabling conservation planning and informing fisher behavior to reduce interactions with this endangered species while minimizing impacts to fisheries and other projects.</p>
Data from: Range-wide analysis of genetic structure in a widespread, highly mobile species (Odocoileus hemionus) reveals the importance of historical biogeography
Highly mobile species that thrive in a wide range of habitats are expected to show little genetic differentiation across their range. A limited but growing number of studies have revealed that patterns of broad-scale genetic differentiation can and do emerge in vagile, continuously distributed species. However, these patterns are complex and often shaped by both historical and ecological factors. Comprehensive surveys of genetic variation at a broad scale and at high resolution are useful for detecting cryptic spatial genetic structure, and for investigating the relative roles of historical and ecological processes in structuring widespread, highly mobile species. In this study, we analyzed 10 microsatellite loci from over 1,900 samples collected across the full range of mule deer (Odocoileus hemionus), one of the most widely distributed and abundant of all large mammal species in North America. Through both individual- and population-based analyses we found evidence for three main genetic lineages, one corresponding to the 'mule deer' morphological type and two to the 'black-tailed deer' type. Historical biogeographic events likely are the primary drivers of genetic divergence in this species; boundaries of the three lineages correspond well with predictions based on Pleistocene glacial cycles and substructure within each lineage demonstrates island vicariance. However, across large geographic areas, including the entire mule deer lineage, we found that genetic variation fit an isolation-by-distance pattern rather than discrete clusters. A lack of genetic structure across wide geographic areas of the continental west indicates that ecological processes have not resulted in restrictions to gene flow sufficient for spatial genetic structure to emerge. Our results have important implications for our understanding of evolutionary mechanisms of divergence, as well as for taxonomy, conservation, and management.
Data from: Genetic signature of population fragmentation varies with mobility in seven bird species of a fragmented Kenyan cloud forest
Habitat fragmentation can restrict geneflow, reduce neighbourhood effective population size, and increase genetic drift and inbreeding in small, isolated habitat remnants. The extent to which habitat fragmentation leads to population fragmentation, however, differs among landscapes and taxa. Commonly, researchers use information on the current status of a species to predict population effects of habitat fragmentation. Such methods, however, do not convey information on species-specific responses to fragmentation. Here we compare levels of past population differentiation, estimated from microsatellite genotypes, with contemporary dispersal rates, estimated from multi-strata capture-recapture models, to infer changes in mobility over time in seven sympatric, forest-dependent bird species of a Kenyan cloud forest archipelago. Overall, populations of sedentary species were more strongly differentiated and clustered compared to those of vagile ones, while geographic patterning suggested an important role of landscape structure in shaping genetic variation. However, five of seven species with broadly similar levels of genetic differentiation nevertheless differed substantially in their current dispersal rates. We conclude that post-fragmentation levels of vagility, without reference to past population connectivity, may not be the best predictor of how forest fragmentation affects the life-history of forest-dependent species. As effective conservation strategies often hinge on accurate prediction of shifts in ecological and genetic relationships among populations, conservation practices based solely upon current population abundances or movements may, in the long term, prove to be inadequate.
FIGURES 17–22 in Taxonomy of the Proisotoma complex. VI. Mobile forms of Proisotoma s. str. with the description of a new species from East Siberia (Collembola: Isotomidae)
FIGURES 17–22. Normal (17, 19, 21) and mobile (18, 20, 22) forms of Proisotoma minima: 17–18, furca; 19–20, distal part of Leg 2; 21–22, ocelli and PAO.
FIGURES 23–29 in Taxonomy of the Proisotoma complex. VI. Mobile forms of Proisotoma s. str. with the description of a new species from East Siberia (Collembola: Isotomidae)
FIGURES 23–29. Morphology of Proisotoma spp: normal (23, 25) and mobile forms (24, 26) of P. dottrensi (Moscow); 23– 24, furca; 25–26, ocelli and PAO; 27, 28, P. dualis sp. nov., posterior row of chaetae in mobile (27) and normal (28) forms; 29, P. brevidens, dens in mobile form.
FIGURES 1–9 in Taxonomy of the Proisotoma complex. VI. Mobile forms of Proisotoma s. str. with the description of a new species from East Siberia (Collembola: Isotomidae)
FIGURES 1–9. Proisotoma dualis sp. nov.: 1, s-chaetae, macrochaetae and p-rows on body tergites; 2, posterior half of abdomen, lateral view in normal form; 3,4 furca in mobile form, posterior (3) and lateral view (4); 5, Ant.1–3, lateral view; 6– 7, ocelli and PAO in mobile (6) and normal (7) form; 8–9, distal part of Leg 2 in mobile (8) and normal (9) form.
FIGURES 15–16 in Taxonomy of the Proisotoma complex. VI. Mobile forms of Proisotoma s. str. with the description of a new species from East Siberia (Collembola: Isotomidae)
FIGURES 15–16. Furcal complex of mobile forms of Proisotoma dualis sp. nov. (15) and P. minima (16).
FIGURES 10–13 in Taxonomy of the Proisotoma complex. VI. Mobile forms of Proisotoma s. str. with the description of a new species from East Siberia (Collembola: Isotomidae)
FIGURES 10–13. Proisotoma minima (10, 11) and P. dualis sp. nov. (12, 13): 10, 12, normal forms; 11, 13, mobile forms.
Mobility costs and energy uptake mediate the effects of morphological traits on species’ distribution and abundance
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Data from: Assessing the spatial ecology and resource use of a mobile and endangered species in an urbanized landscape using satellite telemetry and DNA faecal metabarcoding
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Data from: Genetic signature of population fragmentation varies with mobility in seven bird species of a fragmented Kenyan cloud forest
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Data from: Epibenthic predators control mobile macrofauna associated with a foundation species in a sub-arctic subtidal community
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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)
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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.