cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.cm2yeu
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Triplophysa ulacholica)",
 "BasisOfRecord is one of (Specimen, Literature Occurrence, Human Observation, Observation)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1991",
 "Year is less than or equal to 2025"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0023306-250827131500795/datasets/export for details.
DOI: 10.15468/dl.wxxead
title: Occurrence Download

description: A dataset containing 4 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Echinops aberdaricus",
 "Geometry POLYGON ((-17.62504 -34.81917, 51.13387 -34.81917, 51.13387 37.34999, -17.62504 37.34999, -17.62504 -34.81917))",
 "HasCoordinate is true"
 ]
}

 The dataset includes 4 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0023305-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.5281/zenodo.17049284
title: Medicare Advantage Market Share Enrollment By Carrier

description: This file reports 2025 Medicare Advantage enrollment by parent organization. Each row lists the parent group, covered lives (MA only), market_share_pct, and cumulative_share_pct in rank order, along with source_url/source_title/source_date and last_verified fields indicating whether figures come from KFF’s July 2025 national update or CMS’s August 2025 Monthly Enrollment by Contract.
DOI: 10.5281/zenodo.17049285
title: Medicare Advantage Market Share Enrollment By Carrier

description: This file reports 2025 Medicare Advantage enrollment by parent organization. Each row lists the parent group, covered lives (MA only), market_share_pct, and cumulative_share_pct in rank order, along with source_url/source_title/source_date and last_verified fields indicating whether figures come from KFF’s July 2025 national update or CMS’s August 2025 Monthly Enrollment by Contract.
DOI: 10.15468/dl.da9cyp
title: Occurrence Download

description: A dataset containing 437 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Pseudelmidolia, Pseudomacronychus decoratus, Pseudomacronychus, , Rapnus, , Stenelmis ares, Stenelmis gades, Stenelmis noblei, Stenelmis prusias, Stenelmis thusa, , Tropidelmis hintoni, , , , Aulonogyrus caffer, , , , , , , , , Dineutus aereus, Dineutus subspinosus, , , , , , , , Algophilus, Haliplus natalensis, , Aulacochthebius, Discozantaena brevicollis, Discozantaena, Discozantaena drakensbergensis, Discozantaena endroedyi, Discozantaena galea, Discozantaena genuvela, Discozantaena karroo, Discozantaena leleupi, Discozantaena ovata, Discozantaena sepiola, Discozantaena sequentia, Discozantaena tibiovela, Hydraena accurata, Hydraena cooperi, Hydraena monikae, Mesoceration, Mesoceration apicalum)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "BasisOfRecord is one of (Specimen, Living Specimen, Observation, Human Observation, Machine Observation, Material sample, Literature Occurrence, Material citation, Occurrence evidence)",
 "Geometry POLYGON ((25.0214 -34.0501,25.5395 -34.1098,25.5395 -32.9007,20.509 -32.9007,20.509 -34.5676,20.524 -34.555,20.8859 -34.5419,20.9606 -34.4398,21.2995 -34.5131,21.5296 -34.4338,21.8696 -34.4439,22.0323 -34.2835,22.221 -34.2428,22.2566 -34.1304,22.5993 -34.0741,22.9652 -34.1674,23.4069 -34.1858,23.4955 -34.0792,23.6056 -34.0563,24.8471 -34.2877,24.9447 -34.2397,25.0214 -34.0501))"
 ]
}

 The dataset includes 437 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0023307-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.7hkavp
title: Occurrence Download

description: A dataset containing 646 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-77.23696 -19.06179,-67.78232 -19.06179,-67.78232 -13.096,-77.23696 -13.096,-77.23696 -19.06179))",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Muscisaxicola maclovianus",
 "Year 2020-2025"
 ]
}

 The dataset includes 646 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0023308-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25574/25462
title: Chandra X-ray Observatory ObsId 25462

description: A Chandra Snapshot Survey of the First Gamma-ray detected BAL Quasars
DOI: 10.25574/26469
title: Chandra X-ray Observatory ObsId 26469

description: X-ray driven chemistry in the protoplanetary disk of DQ Tau
DOI: 10.5066/p13w2ihb
title: PIT Tags Encountered by Klamath Falls Field Station Equipment in the Upper Klamath Basin 1993-2025 (ver. 6.0, September 2025)

description: Data were collected as part of a long-term capture-recapture program to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon and Clear Lake Reservoir, California. Lost River suckers (LRS; Deltistes luxatus) and shortnose suckers (SNS; Chasmistes brevirostris) have been captured and tagged with passive integrated transponder (PIT) tags during their spawning migrations in each year since 1995. Suckers are also tagged during summer juvenile sampling in Upper Klamath Lake and Clear Lake, and fall adult sucker sampling in Clear Lake. PIT tagged species were encountered in netting efforts, remote transceivers, and active scanning on bird colonies across the Upper Klamath River Basin (predominately Upper Klamath Lake and Clear Lake Reservoir). The data includes detections for endangered suckers, but also salmonids and other PIT tagged aquatic species that were encountered. While previous versions are available through ScienceBase, all the records in previous versions can be found in version 6.0 which is the most up to date and accurate. There may be uncorrected errors in previous versions and significant changes are noted in the "Version 6.0" text file:
First release: 2022
Revised: August 2023 (ver. 2.0)
Revised: April 2024 (ver. 3.0)
Revised: August 2024 (ver. 4.0)
Revised: February 2025 (ver. 5.0)
Revised: September 2025 (ver. 6.0)
DOI: 10.15468/dl.m2qm32
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Myagrum perfoliatum",
 "Country is Estonia",
 "HasCoordinate is true"
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0023310-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.vvvbp7
title: Occurrence Download

description: A dataset containing 167 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Myagrum perfoliatum",
 "Country is Germany",
 "HasCoordinate is true"
 ]
}

 The dataset includes 167 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0023311-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.b8bfek
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Myagrum perfoliatum",
 "Country is Iran (Islamic Republic of)",
 "HasCoordinate is true"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0023312-250827131500795/datasets/export for details.
DOI: 10.5066/p1zdktqg
title: PIT Tags Encountered by Klamath Falls Field Station Equipment in the Upper Klamath Basin 1993-2025 (ver. 5.0, March 2025)

description: Data were collected as part of a long-term capture-recapture program to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon and Clear Lake Reservoir, California. Lost River suckers (LRS; Deltistes luxatus) and shortnose suckers (SNS; Chasmistes brevirostris) have been captured and tagged with passive integrated transponder (PIT) tags during their spawning migrations in each year since 1995.PIT tagged species were encountered in netting efforts, remote transceivers, and active scanning on bird colonies across the Upper Klamath River Basin (predominately Upper Klamath Lake and Clear Lake Reservoir). The data includes detections for endangered suckers, but also salmonids and other PIT tagged aquatic species that were encountered. While previous versions are available through ScienceBase, all the records in previous versions can be found in version 5.0.

First release: 2022
Revised: August 2023 (ver. 2.0)
Revised: April 2024 (ver. 3.0)
Revised: August 2024 (ver. 4.0)
Revised: March 2025 (ver. 5.0)
DOI: 10.5281/zenodo.17049308
title: Methodological Details for Literature Scan
DOI: 10.5281/zenodo.17049309
title: Methodological Details for Literature Scan
DOI: 10.15468/dl.xzny7k
title: Occurrence Download

description: A dataset containing 13 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Pseudelmidolia, Pseudomacronychus decoratus, Pseudomacronychus, , Rapnus, , Stenelmis ares, Stenelmis gades, Stenelmis noblei, Stenelmis prusias, Stenelmis thusa, , Tropidelmis hintoni, , , , Aulonogyrus caffer, , , , , , , , , Dineutus aereus, Dineutus subspinosus, , , , , , , , Algophilus, Haliplus natalensis, , Aulacochthebius, Discozantaena brevicollis, Discozantaena, Discozantaena drakensbergensis, Discozantaena endroedyi, Discozantaena galea, Discozantaena genuvela, Discozantaena karroo, Discozantaena leleupi, Discozantaena ovata, Discozantaena sepiola, Discozantaena sequentia, Discozantaena tibiovela, Hydraena accurata, Hydraena cooperi, Hydraena monikae, Mesoceration, Mesoceration apicalum)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "BasisOfRecord is one of (Specimen, Living Specimen, Observation, Human Observation, Machine Observation, Material sample, Literature Occurrence, Material citation, Occurrence evidence)",
 "Geometry POLYGON ((32.064 -28.9416,32.4847 -28.5786,30.5701 -28.5786,30.5701 -30.7329,30.6252 -30.6659,31.4179 -29.4257,31.8178 -29.0299,32.064 -28.9416))"
 ]
}

 The dataset includes 13 records from 3 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0023313-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.18739/a28s4jr31
title: Black carbon in Arctic snow, observational data from 1998-2018

description: This dataset is an archive of observational data of black carbon in snow from 1998 to 2018 from 21 studies. It's purpose is to be a resource in aerosol and climate model verification efforts to help constrain the impact of light-absorbing particles, including black carbon, on snow and ice melt in the Arctic. The dataset includes surface and sub-surface concentrations of black carbon in Arctic snowpacks analyzed using the thermal optical, single-particle soot photometer, dissolved black carbon, and integrating sphere/integrating sandwich spectrophotometer methods, as well as other ancillary data, such as snow age, density, and snow grain size, as they were reported in their original papers. As smoke transport and deposition to the Arctic from wildfires becomes increasingly frequent and intense, model verification with ground observations is imperative to improve the understanding of the rapidly changing environment.
DOI: 10.15468/dl.cttxmy
title: Occurrence Download

description: A dataset containing 42 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Echinops hoehnelii",
 "Geometry POLYGON ((-17.62504 -34.81917, 51.13387 -34.81917, 51.13387 37.34999, -17.62504 37.34999, -17.62504 -34.81917))",
 "HasCoordinate is true"
 ]
}

 The dataset includes 42 records from 11 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0023314-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.17632/3dr2hx6j8n
title: LINF_260028300

description: alpha/beta hydrolase; Leishmania infantum (strain JPCM5)
DOI: 10.17632/3dr2hx6j8n.1
title: LINF_260028300

description: alpha/beta hydrolase; Leishmania infantum (strain JPCM5)
DOI: 10.15468/dl.djwxpw
title: Occurrence Download

description: A dataset containing 12056 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "TaxonKey is Rhus coriaria"
 ]
}

 The dataset includes 12056 records from 209 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0023315-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.h99eta
title: Occurrence Download

description: A dataset containing 19 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Cruciglanis pacifici)",
 "BasisOfRecord is one of (Specimen, Literature Occurrence, Human Observation, Observation)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "Year is greater than or equal to 1991",
 "Year is less than or equal to 2025"
 ]
}

 The dataset includes 19 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0023316-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.17632/6m68dby688
title: Pando: The not so old, oldest tree

description: Pando, the legendary “forest that is one tree” in central Utah, is often described as the largest and oldest living organism on Earth—a quaking aspen clone spanning more than 100 acres, supposedly tens of thousands of years old. But what if that story is wrong?

This article reveals a bold new look at Pando’s history. By re-analyzing the very mutation rates used to date the clone, and by considering alternative growth dynamics—including multiple origins, root fusion, bird-borne twig dispersal, and water-driven clonal spread—the evidence points not to an Ice Age giant, but to a mid-Holocene marvel: a tree system just a few thousand years old.

Highlights:

📊 Recalibrated mutation rates slash Pando’s supposed age from 16–81,000 years down to ~5,200 years—within the timeframe of human history.

🌱 Distributed-origin growth model shows how multiple clones can fuse into a massive super-organism, accelerating expansion.

🌍 Ecological context matters: rainfall, flooding, and avian dispersal likely fueled rapid colonization across 106 acres.

🔬 Genomic limitations exposed: shallow sequencing, triploidy complications, and model assumptions inflate “deep time” estimates.

Far from diminishing Pando’s grandeur, this reinterpretation makes it even more extraordinary: a system that achieved its vast size not through endless millennia, but through powerful biological design and ecological synergy in just a few thousand years.

This research challenges long-held evolutionary assumptions and invites us to rethink not only Pando’s timeline, but how we understand the resilience and adaptability of life itself.
DOI: 10.17632/6m68dby688.1
title: Pando: The not so old, oldest tree

description: Pando, the legendary “forest that is one tree” in central Utah, is often described as the largest and oldest living organism on Earth—a quaking aspen clone spanning more than 100 acres, supposedly tens of thousands of years old. But what if that story is wrong?

This article reveals a bold new look at Pando’s history. By re-analyzing the very mutation rates used to date the clone, and by considering alternative growth dynamics—including multiple origins, root fusion, bird-borne twig dispersal, and water-driven clonal spread—the evidence points not to an Ice Age giant, but to a mid-Holocene marvel: a tree system just a few thousand years old.

Highlights:

📊 Recalibrated mutation rates slash Pando’s supposed age from 16–81,000 years down to ~5,200 years—within the timeframe of human history.

🌱 Distributed-origin growth model shows how multiple clones can fuse into a massive super-organism, accelerating expansion.

🌍 Ecological context matters: rainfall, flooding, and avian dispersal likely fueled rapid colonization across 106 acres.

🔬 Genomic limitations exposed: shallow sequencing, triploidy complications, and model assumptions inflate “deep time” estimates.

Far from diminishing Pando’s grandeur, this reinterpretation makes it even more extraordinary: a system that achieved its vast size not through endless millennia, but through powerful biological design and ecological synergy in just a few thousand years.

This research challenges long-held evolutionary assumptions and invites us to rethink not only Pando’s timeline, but how we understand the resilience and adaptability of life itself.
DOI: 10.17632/t94xkswj87
title: Optimization of Seed Tuber Size and Intra-row Spacing on the Enhancement of Potato (Solanum tuberosum) Productivity in North Mecha District, Northwestern Ethiopia: Dataset

description: Afield experiment was conducted at Koga Irrigation Scheme during irrigation season 2021 with the aim of identifying appropriate seed tuber size and intra-row spacing for high productivity. The treatments consisted of four levels of seed tuber sizes in gram (25-50, 50-75, 75-100, 100-125)with three levels of intra row spacing (20, 30, and 40cm) using randomized complete block design with three replication. Days to 50% flowering and 90% maturity, plant height, all yield and yield components were affected by the main factors of seed tuber size and intra-row spacing.The results of the present study showed that almost all the tested phonological, growth parameter and most yield parameters were influenced by the main factor of seed tuber size and intra row spacing, on dates to 50% flowering, days to 90% maturity, plant height, average tuber weight, tuber number per hill, total tuber yield, average tuber yield per hill, large size-tuber yield, medium sizes-tuber yield.
The highest marketable tuber yield (28.98t/ha) of Belete variety were recorded from the treatment combination of 75-100g x 40cm of seed tuber size and intra row spacing. On the other hand, the lowest marketable tuber (17.56t/ha) yields were obtained from 25-50g x 20cm treatment combinations. Similarly, The highest total tuber yield (33.27 and 33.47t/ha) were recorded from 100-125g seed tuber size and 20cm intra row spacing whereas lowest (27.83 and 28.65t/ha) recorded from 25-50g seed tuber size and 40cm intra row spacing respectively. 
The correlation analysis showed that the marketable tuber yield was significantly and positively correlated with main stem number, plant height, average tuber weight, medium-sized tubers large-sized and total tuber yields whereas, significantly and negatively correlated with very small-sized tuber and unmarketable tuber yield. And the partial budget analysis showed that large seed tuber size (75-100g) with 40cm intra row spacing determination gave the maximum net benefit (219734.7Eth-Birr/ha) with an acceptable level of marginal rate of return (274.13%). whereas the lowest net benefits (115002Eth-Birr/ha) obtained from small seed tuber size (25-50g) with 20cm intra row spacing treatment combination. However, from the treatment combination medium seed tuber size (50-75g) with 40cm intra row spacing which gives second highest net benefit (198412.3Eth-Birr/ha) and the highest marginal rate of return (394.02%). Based on the finding of present study, medium seed tuber size (50-75g) with 40cm intra row spacing can be recommended for the economical production of Belete potato variety at Koga Irrigation Scheme and areas with similar agro-ecology. However, the experiment was conducted in one specific location and for only one production season and one year, it recommended to repeat the experiment for more locations in order to generate a more reliable and sustainable result.
DOI: 10.17632/t94xkswj87.1
title: Optimization of Seed Tuber Size and Intra-row Spacing on the Enhancement of Potato (Solanum tuberosum) Productivity in North Mecha District, Northwestern Ethiopia: Dataset

description: Afield experiment was conducted at Koga Irrigation Scheme during irrigation season 2021 with the aim of identifying appropriate seed tuber size and intra-row spacing for high productivity. The treatments consisted of four levels of seed tuber sizes in gram (25-50, 50-75, 75-100, 100-125)with three levels of intra row spacing (20, 30, and 40cm) using randomized complete block design with three replication. Days to 50% flowering and 90% maturity, plant height, all yield and yield components were affected by the main factors of seed tuber size and intra-row spacing.The results of the present study showed that almost all the tested phonological, growth parameter and most yield parameters were influenced by the main factor of seed tuber size and intra row spacing, on dates to 50% flowering, days to 90% maturity, plant height, average tuber weight, tuber number per hill, total tuber yield, average tuber yield per hill, large size-tuber yield, medium sizes-tuber yield.
The highest marketable tuber yield (28.98t/ha) of Belete variety were recorded from the treatment combination of 75-100g x 40cm of seed tuber size and intra row spacing. On the other hand, the lowest marketable tuber (17.56t/ha) yields were obtained from 25-50g x 20cm treatment combinations. Similarly, The highest total tuber yield (33.27 and 33.47t/ha) were recorded from 100-125g seed tuber size and 20cm intra row spacing whereas lowest (27.83 and 28.65t/ha) recorded from 25-50g seed tuber size and 40cm intra row spacing respectively. 
The correlation analysis showed that the marketable tuber yield was significantly and positively correlated with main stem number, plant height, average tuber weight, medium-sized tubers large-sized and total tuber yields whereas, significantly and negatively correlated with very small-sized tuber and unmarketable tuber yield. And the partial budget analysis showed that large seed tuber size (75-100g) with 40cm intra row spacing determination gave the maximum net benefit (219734.7Eth-Birr/ha) with an acceptable level of marginal rate of return (274.13%). whereas the lowest net benefits (115002Eth-Birr/ha) obtained from small seed tuber size (25-50g) with 20cm intra row spacing treatment combination. However, from the treatment combination medium seed tuber size (50-75g) with 40cm intra row spacing which gives second highest net benefit (198412.3Eth-Birr/ha) and the highest marginal rate of return (394.02%). Based on the finding of present study, medium seed tuber size (50-75g) with 40cm intra row spacing can be recommended for the economical production of Belete potato variety at Koga Irrigation Scheme and areas with similar agro-ecology. However, the experiment was conducted in one specific location and for only one production season and one year, it recommended to repeat the experiment for more locations in order to generate a more reliable and sustainable result.
DOI: 10.17632/4kmst6mmzh
title: Migration After the Flood: Kangaroo, Armadillo and Koala

description: How did kangaroos, koalas, and giant armadillos get from the Mountains of Ararat to Australia and the Americas in only a few centuries?

This paper builds a post-Flood migration model using Ice Age land bridges, rafting, and rapid range expansion. From Indian kangaroo rock art to South American glyptodont kill sites, the evidence points to swift, testable dispersal within a biblical timeframe.

If you enjoy biogeography, population dynamics, or testing models against real-world data, you’ll want to read this.