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共检索到46条 ,权限内显示50条;
Hydro-CH2018 reservoirs
- 负责人：
- Brunner, Manuela Irene
- DOI：
- doi:10.16904/envidat.69
- 摘要：
- The dataset Hydro-CH2018 reservoirs provides estimates of current and future water supply, water demand, and storage volumes for 307 medium-sized
GBIF Occurrence Download
- 负责人：
- DOI：
- doi:10.15468/dl.bjq1xi
- 摘要：
- A dataset containing 8710 species occurrences available in GBIF matching the query: BasisOfRecord: Human Observation or Specimen Year: 2010-2018
Data from: Motivations, success and cost of coral reef restoration
- 负责人：
- DOI：
- doi:10.5061/dryad.sv798dm
- 摘要：
- restoration techniques, with coral growth, productivity and survival being the main variables measured. The median project cost was 400,000 US$ ha?1 (2010 US$), ranging
GBIF Occurrence Download
- 负责人：
- DOI：
- doi:10.15468/dl.k2kwbc
- 摘要：
- A dataset containing 217229 species occurrences available in GBIF matching the query: Country: Belgium Year: 2010-2018 Geometry: POLYGON((3.67933 50
GBIF Occurrence Download
- 负责人：
- DOI：
- doi:10.15468/dl.crbzex
- 摘要：
- A dataset containing 94 species occurrences available in GBIF matching the query: Country: Benin Year: 2010-2018 TaxonKey: Ximenia americana
GBIF Occurrence Download
- 负责人：
- DOI：
- doi:10.15468/dl.kzphqe
- 摘要：
- .000000 or < 175.000000 DecimalLatitude: >= -50.000000 or < -45.000000 Year: >= 2000 or <= 2018. The dataset includes 55551 records from 13
GBIF Occurrence Download
- 负责人：
- DOI：
- doi:10.15468/dl.izk7uq
- 摘要：
- Observation Issue: Coordinate rounded or Geodetic datum assumed WGS84 Year: 2010-2018 HasCoordinate: true TaxonKey: Loxodonta africana (Blumenbach, 1797
GBIF Occurrence Download
- 负责人：
- DOI：
- doi:10.15468/dl.wa6knw
- 摘要：
- A dataset containing 882 species occurrences available in GBIF matching the query: BasisOfRecord: Human Observation Year: 1990-2018 HasCoordinate
GBIF Occurrence Download
- 负责人：
- DOI：
- doi:10.15468/dl.sh4whd
- 摘要：
- A dataset containing 908 species occurrences available in GBIF matching the query: BasisOfRecord: Human Observation or Specimen Year: 2010-2018
Data from: Polybrominated diphenyl ether (DE-71) exposure skews phenotypic sex ratio, and alters steroid hormone levels and steroidogenic enzyme activities in juvenile Silurana tropicalis
- 负责人：
- DOI：
- doi:10.5061/dryad.q4qd540
- 摘要：
- The impact of the brominated flame-retardant mixture, DE-71, on gonadal steroidogenesis during sexual differentiation in Silurana tropicalis was examined. A partial lifecycle study exposing S. tropicalis to varying concentrations of DE-71 (0.0, 0.65, 1.3, 2.5, and 5.0 ?g/L [nominal]) was conducted from early gastrula stage embryo to 150 d post-metamorphosis (dpm). Exposure of S. tropicalis to DE-71 induced liver necrosis and induced abnormal ovary development characterized by previtellogenic oocyte necrosis and arrested development of vitellogenic oocytes in females in a concentration-dependent manner. Decreased mean plasma DHT and T, gonad T, and increased mean plasma E2 levels were found in 150 dpm DE-71-treated male S. tropicalis compared to controls. Plasma E2 levels in females were not significantly altered compared to control S. tropicalis, although lower plasma and gonad T were detected. Mean gonadal CYP 19 aromatase activity in both male and female S. tropicalis exposed to DE-71 was not appreciably affected. Decreased mean male 5?-reductase and CYP17 activities in both male and females were observed compared to control frogs. Overall, these studies suggested that PBDE exposure induced liver necrosis and abnormal ovary development; and reduced circulating and gonadal androgens resulting in a phenotypic skew in sex ratio toward the female sex in S. tropicalis
