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89 results for “LEAP”
Data from: Evolution of leap-frog migration: A test of alternative hypotheses
<p>Leap-frog migration is a common migration pattern in birds where the breeding and wintering latitudes between populations are in reversed latitudinal sequence. Competition for wintering and breeding sites has been suggested to be an ultimate factor and several competitor-based hypotheses have been proposed to explain this pattern. If wintering sites close to the breeding sites are favored, competitive exclusion could force subdominant individuals to winter further away. Competitive exclusion could be mediated either through body size or by prior occupancy. The alternative "spring predictability" hypothesis assumes competition for sufficiently close wintering areas, allowing the birds to use autocorrelated weather cues to optimally time spring migration departure. To test predictions and assumptions of these hypotheses, we combined morphometrics, migration and weather data from four populations of common ringed plover breeding along a latitudinal (56-68°N) and climatic gradient (temperate to Arctic). Critical for our evaluation was that two populations were breeding on the same latitude in subarctic Sweden and had the same distance to the closest potential wintering site, but differ in breeding phenology, and wintered in West Africa and Europe, respectively. Thus, while breeding on the same latitude, their winter distribution overlapped with that of an Arctic and temperate population, respectively. Body size was largest within the temperate population, but there was no size difference between the two subarctic. Populations wintering in Europe arrived there before populations wintering in Africa. The largest variation in arrival of meteorological spring occurred at the temperate breeding site, while there was almost no difference among the other sites. In general, temperatures at the northernmost wintering area correlated well with each breeding site prior to breeding site-specific spring arrival. Based on these observations, we conclude that competitive exclusion through body-size related dominance cannot explain leap-frog migration. Furthermore, the assumptions on which the 'spring predictability' hypothesis is based did not match the observed wintering ranges either. However, we could not reject the hypothesis that competitive exclusion mediated by prior occupancy in the wintering area could lead to leap-frog migration, and therefore this hypothesis should be retained as working hypothesis for further work.</p>
Herbarium specimen records from GBIF used for Digi-Leap
<p><strong>We searched the GBIF database on September 11, 2023 for all specimens meeting the following criteria; members of Tracheophyta, collected in the United States, record containing a specimen image, preserved specimen type, english language and not cultivated. This search resulted in 4,091,778 records of which we randomly selected 2,000 to use for Digi-Leap development and training.</strong></p> <p> </p> <p><strong>All GBIF records have the prefix "DL_GBIF" and include a rights.txt file.</strong></p> <p><strong>There are 3 separate scoring files. One for each model; rule-based, GPT and ensemble.</strong></p>
Figure 11 in Life History of Western Ghats endemic and threatened Anuran - Matheran leaping frog, (Indirana leithii) with notes on its feeding preferences
Figure 11. Gut content of tadpoles of Indirana leithii. (a) Algal filament. (b) Gomphonema sp. (c) Cymbelloid. (d) Fragillaroid. (e) Diadesmis sp. (f) Pinnularia sp. (g) Desmid. (h) Eunotia sp. (i) Naviculloid. Images taken at × 400.
Figure 6. Crevices near 139 in Life History of Western Ghats endemic and threatened Anuran - Matheran leaping frog, (Indirana leithii) with notes on its feeding preferences
Figure 6. Crevices near 139 NM where egg clutches were found to be laid that were occupied by several males.
Figure 2 in Life History of Western Ghats endemic and threatened Anuran - Matheran leaping frog, (Indirana leithii) with notes on its feeding preferences
Figure 2. Large gathering at the cavern near 154 NM on Neral-Matheran narrow gauge railway track, which is seen before and after the breeding season. Inset shows cavern which houses hundreds of Indirana leithii adults.
Figure 7 in Life History of Western Ghats endemic and threatened Anuran - Matheran leaping frog, (Indirana leithii) with notes on its feeding preferences
Figure 7. Eggs of Indirana leithii (a) under the loose rock and (b) laid inside the crevice showing Stage 22 and 23.
Figure 10 in Life History of Western Ghats endemic and threatened Anuran - Matheran leaping frog, (Indirana leithii) with notes on its feeding preferences
Figure 10. Tadpole stages. (a) Stage 25. (b–g) Stages between 31 and 38. (h, i) stages between 39 and 41. (j) Stage 42 (Stages from Gosner 1960). Red arrow indicates hind limb bud. Picture credit Angad Joshi.
Figure 1 in Life History of Western Ghats endemic and threatened Anuran - Matheran leaping frog, (Indirana leithii) with notes on its feeding preferences
Figure 1. Study area and habitat of the species. (a) Distant shot of part of Matheran Hill. (b) Narrow gauge railway track passing along the cliff faces. (c) Tadpole on the wet cliff covered with algae. (d) Adult sitting in the crevice (this crevice contained fertilized eggs).
Fig. 2 in Leaping Somersaults by Larvae are Phylogenetically Widespread and Likely Primitive for Tiger Beetles (Coleoptera: Carabidae: Cicindelinae)
Fig. 2. Still frames from high-speed video of a larva of Omus dejeani performing leaping somersaults.
Fig. 1 in Leaping Somersaults by Larvae are Phylogenetically Widespread and Likely Primitive for Tiger Beetles (Coleoptera: Carabidae: Cicindelinae)
Fig. 1. Still frames from high-speed video of a larva of Tetracha carolina performing leaping somersaults.
The Next Leap in Cardiac Magnetic Resonance Imaging:Cycling the Field
ClinicalTrials.gov study NCT04458883. IPD Sharing: NO. Countries: 1. Publications: 6.
LEAP-CT for Treatment of COVID-19 Patients (Master Protocol)
ClinicalTrials.gov study NCT05077332. IPD Sharing: UNDECIDED. Countries: 1. Publications: 9.
Leg Exercise Assistive Paddling (LEAP) Therapy for Peripheral Artery Disease
ClinicalTrials.gov study NCT06389149. IPD Sharing: NO. Countries: 1. Publications: 54.
Lilly's Emotional and Physical Symptoms of Depression Study (LEAPS)
ClinicalTrials.gov study NCT00479726. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Impact of Left Bundle Branch Area Pacing vs. Right Ventricular Pacing in Atrioventricular Block (LEAP-Block)
ClinicalTrials.gov study NCT04730921. IPD Sharing: NO. Countries: 1. Publications: 10.
Reducing Structural Inequities in Heart Failure Management: An Approach to Improve the Quality of Heart Failure Care on the General Medicine Service: Longitudinal Equity Action Plan (LEAP)
ClinicalTrials.gov study NCT03942978. IPD Sharing: NO. Countries: 1. Publications: 10.
LEAPS-NCHD Program Evaluation
ClinicalTrials.gov study NCT03764436. IPD Sharing: YES. Countries: 1. Publications: 4.
Rural Lifestyle Eating and Activity Program (Rural LEAP)
ClinicalTrials.gov study NCT02054624. IPD Sharing: NO. Countries: 1. Publications: 2.
Neuromuscular Electrical Stimulation and Leap Motion-Based Exercises in Cerebral Palsy
ClinicalTrials.gov study NCT07311018. IPD Sharing: NO. Countries: 1. Publications: 17.
MAgicTouch™ Intervention Leap for Dialysis Access (MATILDA) Trial
ClinicalTrials.gov study NCT04698512. IPD Sharing: NO. Countries: 1. Publications: 2.
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International Brain Laboratory public data
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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.