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17,039 results for “Natural”
Natural history specimens collected and/or identified and deposited.
Natural history specimen data collected and/or identified by Edward Whittall, <a href="http://www.wikidata.org/entity/Q5820029">http://www.wikidata.org/entity/Q5820029</a>. Claims or attributions were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>.
Natural history specimens collected and/or identified and deposited.
Natural history specimen data collected and/or identified by Richard Kandt, <a href="http://www.wikidata.org/entity/Q76072">http://www.wikidata.org/entity/Q76072</a>. Claims or attributions were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>.
Natural history specimens collected and/or identified and deposited.
Natural history specimen data collected and/or identified by Carlo von Erlanger, <a href="http://www.wikidata.org/entity/Q69865">http://www.wikidata.org/entity/Q69865</a>. Claims or attributions were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>.
Natural history specimens collected and/or identified and deposited.
Natural history specimen data collected and/or identified by Theodor von Heuglin, <a href="http://www.wikidata.org/entity/Q61968">http://www.wikidata.org/entity/Q61968</a>. Claims or attributions were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>.
Natural history specimens collected and/or identified and deposited.
Natural history specimen data collected and/or identified by Georg Scheffler, <a href="http://www.wikidata.org/entity/Q21607877">http://www.wikidata.org/entity/Q21607877</a>. Claims or attributions were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>.
Genetic diversity and efficacy of natural selection in spiders with pre-copulatory sexual cannibalism
<p>Factors that increase reproductive variance among individuals act to reduce effective population size (Ne), which accelerates loss of genetic diversity and decreases efficacy of purifying selection. These factors include sexual cannibalism, offspring investment, and mating system. Pre-copulatory sexual cannibalism where the female consumes the male prior to mating exacerbates this effect. We performed comparative transcriptomics in two spider species, the cannibalistic Trechaleoides biocellata and the non-cannibalistic T. keyserlingi, to generate genomic evidence to support these predictions. First, we estimated heterozygosity and found that genetic diversity is relatively lower in the cannibalistic species. Second, we calculated dN/dS ratios as a measure of purifying selection, higher dN/dS ratio indicated relaxed purifying selection in the cannibalistic species. These results are consistent with the hypothesis that sexual cannibalism impacts operational sex ratio and demographic processes, which interact with evolutionary forces to shape the genetic structure of populations. However, other factors such as the mating system and life-history traits contribute to shape Ne. Comparative analyses across multiple contrasting species-pairs would be required to disentangle these effects. Our study highlights that extreme behaviours such as pre-copulatory cannibalism may have profound eco-evolutionary effects. </p>
Рис. 8. РаспреΑеΛение гнезΑ ΑаΛьневосточного аиста в прироΑном парке «Шереметьевский» в 2013 г. Fig. 8. Distribution of nests of the Oriental White Stork in the Sheremetyevsky Nature Park in 2013 in The number and distribution of the Oriental White Stork Ciconia boyciana Swinhoe, 1873 in the Khabarovskiy Region
Рис. 8. РаспреΑеΛение гнезΑ ΑаΛьневосточного аиста в прироΑном парке «Шереметьевский» в 2013 г. Fig. 8. Distribution of nests of the Oriental White Stork in the Sheremetyevsky Nature Park in 2013
Fig. 1 in Notes on the fauna of beetles (Insecta, Coleoptera) adjacent to the territory of the Mordovia State Nature Reserve
Fig. 1. Location map of the Mordovia State Nature Reserve Рис. 1. Карта распоΛожения МорÃовского госуÃарственного прироÃного заповеÃника
Natural history specimens collected and/or identified and deposited.
Natural history specimen data collected and/or identified by Raymond Specht, <a href="http://www.wikidata.org/entity/Q3277170">http://www.wikidata.org/entity/Q3277170</a>. Claims or attributions were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>.
Natural history specimens collected and/or identified and deposited.
Natural history specimen data collected and/or identified by Ernest Nelmes, <a href="http://www.wikidata.org/entity/Q18987018">http://www.wikidata.org/entity/Q18987018</a>. Claims or attributions were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>.
Natural history specimens collected and/or identified and deposited.
Natural history specimen data collected and/or identified by Leopold Heyrovský, <a href="http://www.wikidata.org/entity/Q12032978">http://www.wikidata.org/entity/Q12032978</a>. Claims or attributions were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>.
Natural history specimens collected and/or identified and deposited.
Natural history specimen data collected and/or identified by Michel Adanson, <a href="http://www.wikidata.org/entity/Q315861">http://www.wikidata.org/entity/Q315861</a>. Claims or attributions were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>.
Natural history specimens collected and/or identified and deposited.
Natural history specimen data collected and/or identified by Dietrich Braasch, <a href="http://www.wikidata.org/entity/Q21340628">http://www.wikidata.org/entity/Q21340628</a>. Claims or attributions were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>.
Natural history specimens collected and/or identified and deposited.
Natural history specimen data collected and/or identified by Walter Wittmer, <a href="http://www.wikidata.org/entity/Q18818801">http://www.wikidata.org/entity/Q18818801</a>. Claims or attributions were made on Bionomia, <a href="http://bionomia.net">https://bionomia.net</a> using specimen data from the Global Biodiversity Information Facility, <a href="https://gbif.org">https://gbif.org</a>.
Fig. 2 in Patterns of growth and natural mortality in Lysapsus bolivianus (Anura, Hylidae, Pseudae) in an environmental protection area in the estuary of the Amazon River
Fig. 2. Weight-length relationships in adult male and female Lysapsus bolivianus from the Rio Curiaú EPA on the estuary of the Amazon River, in northern Brazil.
Fig. 4 in Patterns of growth and natural mortality in Lysapsus bolivianus (Anura, Hylidae, Pseudae) in an environmental protection area in the estuary of the Amazon River
Fig. 4. Von Bertalanffy's growth curves for (A) male and (B) female Lysapsus bolivianus from the Rio Curiaú EPA in Amapá, Brazil.
Fig. 3 in Patterns of growth and natural mortality in Lysapsus bolivianus (Anura, Hylidae, Pseudae) in an environmental protection area in the estuary of the Amazon River
Fig. 3. Plot of the Ford-Walford estimates of growth parameters (SVL, k) of adult (A) male and (B) female Lysapsus bolivianus ∞ from the Rio Curiaú EPA in Amapá, Brazil. The values were estimated by the linear regressions between SVL and SVL+1 for each gender, as SVL ∞ = (a/1-b) and K = -loge b.
Fig. 1 in Patterns of growth and natural mortality in Lysapsus bolivianus (Anura, Hylidae, Pseudae) in an environmental protection area in the estuary of the Amazon River
Fig. 1. Relative frequency of the body size classes (SVL, snout–vent length; mm) recorded in the (A) adult males and females and (B) juveniles of the Lysapsus bolivianus population from the Rio Curiaú EPA on the estuary of the Amazon River, in northern Brazil.
Fig. 4 in A new species of dwarf day gecko (Reptilia: Gekkonidae: Cnemaspis) from lower-elevations of Samanala Nature Reserve in Central massif, Sri Lanka
Fig. 4. Cnemaspis anslemi sp. nov. male holotype (NMSL.2019.14.01) in life in-situ. (A) Dorsal view of the full body displaying the typical color pattern and a straight black middorsal dash over midpoint of neck, (B) Ventral aspect showing gular and femoral colorations, (C) lateral view showing labial coloration and zigzag pattern, (D) dorsal view of the full body of female paratype (NMSL.2019.14.02) in life in-situ from Udamaliboda, Samanala Nature Reserve, Sri Lanka. Photos: Kanishka Ukuwela and Suranjan Karunarathna.
Fig. 5 in A new species of dwarf day gecko (Reptilia: Gekkonidae: Cnemaspis) from lower-elevations of Samanala Nature Reserve in Central massif, Sri Lanka
Fig. 5. General habitat of Cnemaspis anslemi sp. nov. at Udamaliboda, Samanala Nature Reserve, Kegalle District, Sri Lanka. (A) Complete view of the forest hill, (B) shady forest with thick leaf litter, (C) hundred years old house made using clay and bricks, also with wattle and daub, (D) communal egg laying site on a clay wall. Photos: Madhava Botejue and Suranjan Karunarathna.
ScienceDex guides
Understand access before you commit
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.