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4,157 results for “Survival.”
Tree seedling functional traits mediate plant-soil feedback survival responses across a gradient of light availability
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Data from: Experimental evolution for improved post-infection survival selects for increased disease resistance in Drosophila melanogaster
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Divergent response and adaptation of specific leaf area to environmental change at different spatio-temporal scales jointly improve plant survival
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Capture histories of owls with covariates for survival analysis
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Do maternal allocations towards offspring quality and quantity ameliorate the effects of predators on offspring survival?
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Nutrition affects larval survival and the development of morphological traits in male and female flour beetles, but genital size and shape remain canalized
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Performances (survival and growth) and functional traits of tree seedlings along light and water gradients
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Timing is everything: survival of Atlantic salmon (Salmo salar) postsmolts during events of high salmon lice densities
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Drosophila survival after infection and Buletin antibacterial activity data
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Non-structural carbohydrates predict survival in saplings of temperate trees under carbon stress
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Location Location Location: Survival of Antarctic biota requires the best real-estate
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Flow augmentation from off-channel storage improves salmonid habitat and survival
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Momma's larvae: Maternal oceanographic experience and larval size influence early survival of rockfishes
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Neighbours consistently influence tree growth and survival in a frequently burned open oak landscape
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Figure 1 in How survival and food intake of tri-spine horseshoe crabsı Tachypleus tridentatus respond to thermal variation: implications for understanding its distribution limit
Figure 1. Global distribution of T. tridentatus as reported by previous literature, and the regional changes of sea surface temperature (SST) in (a) summer and (b) winter. Note the three occurrence reports outside their geographic range: (1) a non-native population from Chubu Region, Central Japan; (2) an escape population from Okinawa Prefecture, Japan due to broken nets during transportation; (3) a sighting of single female from Jeju, South Korea, which was not associated with a known spawning or juvenile nursery habitat.
Subspecies and Distribution. E. s. semicaudata Peale, 1848 - Samoa (Savai'i and Upolu Is), American Samoa (Ta'u Is), Fiji (Rotuma, Kuata in Yusawa Group, Taveuni, Ovalau, and Lakeba Is), and Tonga (Niuafo'ou and 'Eua Is, and likely occurs on other islands in the group). Not recorded in Tutuila (American Samoa) since 1976 despite dedicated searches for cave roosts and use of echolocation detectors and also likely extinct on Vitu Levu (Fiji) where the last specimens were collected in 1979. E. s. palauensis Yamashima, 1932 - Palau Is (including Babeldaob, Koror, Peleliu, and Angaur). E. s. rotensis Yamashima, 1943 - Northern Mariana Is and Guam I, last surviving population is currently restricted to tiny Aguigan I; it appears to be extirpated on Anatahan, Tonowas, Rota, Saipan, and Tinian Is, and on Guam I. E. s. sulcataG. S. Miller, 1911 — Caroline Is (Chuuk and Pohnpei Is). in Emballonuridae
Subspecies and Distribution. E. s. semicaudata Peale, 1848 - Samoa (Savai'i and Upolu Is), American Samoa (Ta'u Is), Fiji (Rotuma, Kuata in Yusawa Group, Taveuni, Ovalau, and Lakeba Is), and Tonga (Niuafo'ou and 'Eua Is, and likely occurs on other islands in the group). Not recorded in Tutuila (American Samoa) since 1976 despite dedicated searches for cave roosts and use of echolocation detectors and also likely extinct on Vitu Levu (Fiji) where the last specimens were collected in 1979. E. s. palauensis Yamashima, 1932 - Palau Is (including Babeldaob, Koror, Peleliu, and Angaur). E. s. rotensis Yamashima, 1943 - Northern Mariana Is and Guam I, last surviving population is currently restricted to tiny Aguigan I; it appears to be extirpated on Anatahan, Tonowas, Rota, Saipan, and Tinian Is, and on Guam I. E. s. sulcataG. S. Miller, 1911 — Caroline Is (Chuuk and Pohnpei Is).
Data from: Sustainability management of short-lived freshwater fish in human-altered ecosystems should focus on adult survival
<p>Fish populations globally are susceptible to endangerment through exploitation and habitat loss. We present theoretical simulations to explore how reduced adult survival (age truncation) might affect short-lived freshwater fish species in human-altered contemporary environments. Our simulations evaluate two hypothetical "average fish" and five example fish species of age 1 or age 2 maturity. From a population equilibrium baseline representing a natural, unaltered environment we impose systematic reductions in adult survival and quantify how age truncation affects the causes of variation in population growth rate. We estimate the relative contributions to population growth rate arising from simulated temporal variation in age-specific vital rates and population structure. At equilibrium and irrespective of example species, population structure (first adult age class) and survival probability of the first two adult age classes are the most important determinants of population growth. As adult survival decreases, the first reproductive age class becomes increasingly important to variation in population growth. All simulated examples show the same general pattern of change with age truncation as known for exploited, longer-lived fish species in marine and freshwater environments. This implies age truncation is a general potential concern for fish biodiversity across life history strategies and ecosystems. Managers of short-lived, freshwater fishes in contemporary environments often focus on supporting reproduction to ensure population persistence. However, a strong focus on water management to support reproduction may reduce adult survival. Sustainability management needs a focus on mitigating adult mortality in human-altered ecosystems. A watershed spatial extent embracing land and water uses may be necessary to identify and mitigate causes of age truncation in freshwater species. Achieving higher adult survival will require paradigm transformations in society and government about water management priorities.</p>
Data from: Ovarian BDNF promotes survival, migration, and attachment of tumor precursors originated from p53 mutant fallopian tube epithelial cells
<p class="CxSpFirst"><span>High-grade serous ovarian carcinoma (HGSOC) is the most lethal gynecological malignancy. New evidence supports a hypothesis that HGSOC can originate from fallopian tube epithelium (FTE). It is unclear how genetic alterations and pathophysiological processes drive the progression of FTE tumor precursors into widespread HGSOCs. In this study, we uncovered that brain-derived neurotrophic factor (BDNF) in the follicular fluid stimulates the tropomyosin receptor kinase B (TrkB)-expressing FTE cells to promote their survival, migration, and attachment. Using <i>in vitro</i> and <i>in vivo</i> models, we further identified that the acquisition of common TP53 gain-of-function (GOF) mutations in FTE cells led to enhanced BDNF/TrkB signaling comparing to that of FTE cells with <i>TP53</i> loss-of-function (LOF) mutations. Different mutant p53 proteins can either increase TrkB transcription or enhance TrkB endocytic recycling. Our findings have demonstrated possible interplays between genetic alterations in FTE tumor precursors (i.e., p53 gain-of-function mutations) and pathophysiological processes (i.e., the release of follicular fluid upon ovulation) during the initiation of HGSOC from the fallopian tube. Our data revealed molecular events underlying the link between HGSOC tumorigenesis and ovulation, a physiological process that has been associated with risk factors of HGSOC. </span></p>
The case of a southern European glacier disappearing under recent warming that survived Roman and Medieval warm periods
<p>We upload there the dataset needed to build up the chronological model of the ice core presented in the discussion paper <a href="https://www.the-cryosphere-discuss.net/tc-2020-107/">"The case of a southern European glacier disappearing under recent warming that survived Roman and Medieval warm periods" </a>.</p> <p>The readme pdf file presents the methods to create such an age-depth model using the package CLAM v2.2 (Blaauw, 2010) and the settings chose to run it.</p>
Adult survival in migratory caribou is negatively associated with MHC functional diversity
<p>The genes of the major histocompatibility complex (MHC) are involved in acquired, specific immunity in vertebrates. Yet, only a few studies have investigated the fitness consequences of MHC gene diversity in wild populations. Here, we looked at the association between annual survival and body mass and MHC-DRB exon 2 (MHC-DRB) genetic diversity, obtained from high-throughput sequencing, in two declining migratory caribou (Rangifer tarandus) herds. To disentangle the potential direct and general effects of MHC-DRB genetic diversity, we compared different indices of diversity that were either based on DNA-sequence variation or on physicochemical divergence of the translated peptides, covering a gradient of allelic to functional diversity. We found that i) body mass was not related to MHC-DRB diversity or genotype and that ii) adult survival probability was negatively associated with PAM distance, a corrected distance that considers the likelihood of each amino acid substitution to be accepted by the processes of natural selection. In addition, we found no evidence of fluctuating selection in time on MHC-DRB. We concluded that direct effects were involved in the negative relationship between MHC functional diversity and survival, although the mechanism underlying this result remains unclear. A possible explanation could be that individuals with higher MHC diversity suffer higher costs of immunity (immunopathology). Further studies are needed to investigate this hypothesis. Our results suggest that genetic diversity is not always beneficial even in genes that are supposed to be strongly shaped by balancing selection.</p>
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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.