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35 results for “freshwater sources”
Data Source: Synergistic effects of precipitation and groundwater extraction on freshwater wetland inundation
Wetlands provide essential ecosystem services, including nutrient cycling, flood protection, and biodiversity support, that are sensitive to changes in wetland hydrology. Wetland hydrological inputs come from precipitation, groundwater discharge, and surface run-off. Changes to these inputs via climate variation, groundwater extraction, and land development may alter the timing and magnitude of wetland inundation. Data were compiled for 152 wetlands in west-central Florida over 14 years to investigate the response of wetland inundation to the interactive effects of precipitation, groundwater extraction, surrounding land development, basin geomorphology, and wetland vegetation class. Further methods are defined in the Methods section of the journal article associated with this dataset (Synergistic effects of precipitation and groundwater extraction on freshwater wetland inundation, published in the Journal of Environmental Management, 2023).
Freshwater sources from Antarctica and Greenland
<p>Freshwater sources from Greenland and Antarctica. For details see https://github.com/NASA-GISS/freshwater-forcing-workshop and https://doi.org/10.5194/egusphere-2025-1940</p> <p>v7 update: See changelog at <a href="https://github.com/NASA-GISS/freshwater-forcing-workshop/compare/de5779e8b454a7d432b0159aebfe289665ced3c8...f4250709080c46d82fd96a082a80e4f18ceaa604">https://github.com/NASA-GISS/freshwater-forcing-workshop/compare/de5779e8b454a7d432b0159aebfe289665ced3c8...f4250709080c46d82fd96a082a80e4f18ceaa604</a></p>
Data from: Estimating potential global sources and secondary spread of freshwater invasions under historical and future climates
<p>Aim: We employ a climate-matching method to evaluate potential source regions of freshwater invasive species to an introduced region and their potential secondary spread under historical and future climates.</p> <p>Location: Global source regions, with primary introductions to the Laurentian Great Lakes and secondary introductions throughout North America</p> <p>Methods: We conducted a climate-match analysis using the CLIMATE algorithm to estimate global source freshwater ecoregions under historical and future climates with an ensemble of general circulation models for climate change scenario SSP5-8.5. Given existing research, we use a climate match of ≥ 71.7% between ecoregions to indicate climatic conditions that will not inhibit the survival of introduced freshwater organisms. Further, we estimate the secondary spread of freshwater invaders to the ecoregions of North America under historical and future climates.</p> <p>Results: We identified 54 global freshwater ecoregions with a climate match ≥ 71.7% to the recipient Laurentian Great Lakes under historical climatic conditions and 11 additional ecoregions were predicted to exceed the threshold under climate change. Three of the 11 ecoregions were located in South America, a continent where no matches existed under historical climates and eight were located in the southern United States, southern Europe, Japan, and New Zealand. Further, we identify 34 North American ecoregions of potential secondary spread of freshwater invasions from the Great Lakes under historical climatic conditions, and five ecoregions were predicted to exceed the threshold under climate change.</p> <p>Main conclusion: We provide a climate-match method that can be employed to assess the sources and spread of freshwater invasions under historical and future climate scenarios. Our climate-match method predicted increases in climate match between the recipient region and several potential source regions, and changes in areas of potential spread under climate change. The identified ecoregions are candidates for detailed biosecurity risk assessments and related management actions. The identified ecoregions are candidates for detailed biosecurity risk assessments and related management actions.</p>
Data from: Estimating potential global sources and secondary spread of freshwater invasions under historical and future climates
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FIGURE 19 in Description of two new species, Aphanolaimus strilliae n. sp. (Nematoda: Aphanolaimidae) and Makatinus africanus n. sp. (Nematoda: Aporcelaimidae), and SEM observations on three known species from freshwater sources in the Telperion Nature Reserve (Mpumalanga, South Africa)
FIGURE 19. Scanning electron micrograph of Neotobrilus ampiei (Joubert & Heyns, 1979) Tsalolikhin, 1981 A + C) Close up of supplements S2 and S3 (S1 identical to S2 and S3); B) Close up of ventrosublateral setae, arrow showing junction where two parts meet; D–F) Close up of supplement S4–S6.
FIGURE 16 in Description of two new species, Aphanolaimus strilliae n. sp. (Nematoda: Aphanolaimidae) and Makatinus africanus n. sp. (Nematoda: Aporcelaimidae), and SEM observations on three known species from freshwater sources in the Telperion Nature Reserve (Mpumalanga, South Africa)
FIGURE 16. Scanning electron micrograph of Neotobrilus ampiei (Joubert & Heyns, 1979) Tsalolikhin, 1981; A) Lateral view of anterior end showing amphid (a); long cephalic setae (lcs), short cephalic setae (scc) and labial papillae (lp); B) Anterior end showing long cephalic setae (lcs), short cephalic setae (scc) and labial papillae (lp) and liplets (l); C) Close up of long cephalic setae (lcs) and labial papillae (lp), arrows indicating the opening of the sensory organs; D) Arrow indicating lateral cord; E) Ventral side of body showing vulva.
FIGURE 13 in Description of two new species, Aphanolaimus strilliae n. sp. (Nematoda: Aphanolaimidae) and Makatinus africanus n. sp. (Nematoda: Aporcelaimidae), and SEM observations on three known species from freshwater sources in the Telperion Nature Reserve (Mpumalanga, South Africa)
FIGURE 13. Light microscopic pictures of Eutobrilus annetteae (Joubert & Heyns, 1979) Tsalolikhin, 1983 female A) Anterior region indicating buccal cavity to cardia; B) Whole female specimen, arrow indicating vulva; C) Vulval region showing simple vaginal musculature; D) Labial region showing buccal cavity and two overlapping tooth pockets (T1 and T2).
FIGURE 10 in Description of two new species, Aphanolaimus strilliae n. sp. (Nematoda: Aphanolaimidae) and Makatinus africanus n. sp. (Nematoda: Aporcelaimidae), and SEM observations on three known species from freshwater sources in the Telperion Nature Reserve (Mpumalanga, South Africa)
FIGURE 10. Scanning electron micrograph of Chronogaster africana Heyns & Coomans, 1980 female, A) Posterior end showing anus and arrow indicating caudal pore; B) Close up of caudal pore arrows indicating two possible openings; C, D, F) Tail tip showing projections, arrows indicate anastomosis; E) Posterior end indicating anus and caudal pores (arrow).
FIGURE 9 in Description of two new species, Aphanolaimus strilliae n. sp. (Nematoda: Aphanolaimidae) and Makatinus africanus n. sp. (Nematoda: Aporcelaimidae), and SEM observations on three known species from freshwater sources in the Telperion Nature Reserve (Mpumalanga, South Africa)
FIGURE 9. Scanning electron micrograph of Chronogaster africana Heyns & Coomans, 1980 female, A) Anterior end showing cephalic setae (cs) and amphid opening (a); B) Ventral side of body showing cephalic region with cephalic setae (cs) and amphid (a); C) Close up of excretory pore (exp); D) Anterior region showing the position of the excretory pore (exp).
FIGURE 7. Makatinus africanus n in Description of two new species, Aphanolaimus strilliae n. sp. (Nematoda: Aphanolaimidae) and Makatinus africanus n. sp. (Nematoda: Aporcelaimidae), and SEM observations on three known species from freshwater sources in the Telperion Nature Reserve (Mpumalanga, South Africa)
FIGURE 7. Makatinus africanus n. sp. female A) Anterior region with oesophagus; B) Anterior region with spear and position of amphid; C) Tail region; D) Habitus; E) Vulval region with pars distalis vaginae (pdv), pars refringens vaginae (prv) and pars proximalis vaginae (ppv); F) Reproductive system.
FIGURE 15 in Description of two new species, Aphanolaimus strilliae n. sp. (Nematoda: Aphanolaimidae) and Makatinus africanus n. sp. (Nematoda: Aporcelaimidae), and SEM observations on three known species from freshwater sources in the Telperion Nature Reserve (Mpumalanga, South Africa)
FIGURE 15. Male drawings Neotobrilus ampiei (Joubert & Heyns, 1979) Tsalolikhin, 1981 A) Close up of supplements 3–6 showing position of micropapillae; B) Supplementary row S1–S6 (S1 starting anteriorly); Ductus ejaculatoris; spicule and gu- bernaculum; C) Anterior region showing stoma and arrangement of teeth pockets.
FIGURE 6 in Description of two new species, Aphanolaimus strilliae n. sp. (Nematoda: Aphanolaimidae) and Makatinus africanus n. sp. (Nematoda: Aporcelaimidae), and SEM observations on three known species from freshwater sources in the Telperion Nature Reserve (Mpumalanga, South Africa)
FIGURE 6. Scanning electron micrographs of Aphanolaimus strilliae n. sp. female A) Ventral view of vulva; B) Ventral view of anus; C–D) Tail tip with opening of spinneret; E) Tail region with lateral field and last body pore (bp).
FIGURE 4 in Description of two new species, Aphanolaimus strilliae n. sp. (Nematoda: Aphanolaimidae) and Makatinus africanus n. sp. (Nematoda: Aporcelaimidae), and SEM observations on three known species from freshwater sources in the Telperion Nature Reserve (Mpumalanga, South Africa)
FIGURE 4. Scanning electron micrographs of Aphanolaimus strilliae n. sp. female A) Lateral view of anterior region with amphid (a), first body pore (bp) and the beginning of the lateral field (lf); B) First body pore (bp) and lateral field (lf); C) Lateral field (lf) at mid-body; D) Ventral view mid-body with lateral field (lf) and two body pores (bp).
FIGURE 3 in Description of two new species, Aphanolaimus strilliae n. sp. (Nematoda: Aphanolaimidae) and Makatinus africanus n. sp. (Nematoda: Aporcelaimidae), and SEM observations on three known species from freshwater sources in the Telperion Nature Reserve (Mpumalanga, South Africa)
FIGURE 3. Scanning electron micrographs of Aphanolaimus strilliae n. sp. female A) Head region in ventral view with cephalic setae (cs) and amphid (a); B + C) Head region in lateral view with cephalic setae (cs) and amphid (a); D) Lip region in en face view of lip region with amphid opening (a) and stoma opening (s).
FIGURE 2. Aphanolaimus strilliae n in Description of two new species, Aphanolaimus strilliae n. sp. (Nematoda: Aphanolaimidae) and Makatinus africanus n. sp. (Nematoda: Aporcelaimidae), and SEM observations on three known species from freshwater sources in the Telperion Nature Reserve (Mpumalanga, South Africa)
FIGURE 2. Aphanolaimus strilliae n. sp. female A) Oesophageal region with ventral gland; B–D) Anterior region with oesophagus, stoma, position of amphid and position of first lateral body pore; E) Lateral field at mid-body; F) Vulval region; G) Reproductive system; H) Tail region; I) Genital tract with developing juveniles.
FIGURE 1 in Description of two new species, Aphanolaimus strilliae n. sp. (Nematoda: Aphanolaimidae) and Makatinus africanus n. sp. (Nematoda: Aporcelaimidae), and SEM observations on three known species from freshwater sources in the Telperion Nature Reserve (Mpumalanga, South Africa)
FIGURE 1. Telperion Nature Reserve, Mpumalanga, indicating the four study sites from which water and sediment samples were taken. Blue colour indicates water. The red star on the map of South Africa (top left) indicates the location of the Telperion Nature Reserve, Mpumalanga. (Shorthouse 2010).
FIGURE 5 in Description of two new species, Aphanolaimus strilliae n. sp. (Nematoda: Aphanolaimidae) and Makatinus africanus n. sp. (Nematoda: Aporcelaimidae), and SEM observations on three known species from freshwater sources in the Telperion Nature Reserve (Mpumalanga, South Africa)
FIGURE 5. Scanning electron micrographs of Aphanolaimus strilliae n. sp. female A–D) Body pores detail all located in ante- rior half of body; E–F) Body pores in posterior half of body (lf = lateral field).
FIGURE 8 in Description of two new species, Aphanolaimus strilliae n. sp. (Nematoda: Aphanolaimidae) and Makatinus africanus n. sp. (Nematoda: Aporcelaimidae), and SEM observations on three known species from freshwater sources in the Telperion Nature Reserve (Mpumalanga, South Africa)
FIGURE 8. Light microscope photos of Makatinus africanus n. sp. female A) Anterior region arrows indicate dorsal median pores; B) Vulval region with pars distalis vaginae (pdv), pars refringens vaginae (prv) and pars proximalis vaginae (ppv); C) Tail region with arrow indicating peg.
FIGURE 14 in Description of two new species, Aphanolaimus strilliae n. sp. (Nematoda: Aphanolaimidae) and Makatinus africanus n. sp. (Nematoda: Aporcelaimidae), and SEM observations on three known species from freshwater sources in the Telperion Nature Reserve (Mpumalanga, South Africa)
FIGURE 14. Female drawings Neotobrilus ampiei (Joubert & Heyns, 1979) Tsalolikhin, 1981 A) Anterior region showing oesophagus; B) Tail; C) Vulval region showing musculature of vagina; D) Anterior region showing structure of stoma and teeth pockets; E) Vulval region showing part of anterior genital tract with two eggs and full posterior tract with one egg.
FIGURE 21 in Description of two new species, Aphanolaimus strilliae n. sp. (Nematoda: Aphanolaimidae) and Makatinus africanus n. sp. (Nematoda: Aporcelaimidae), and SEM observations on three known species from freshwater sources in the Telperion Nature Reserve (Mpumalanga, South Africa)
FIGURE 21. Light microscopic pictures of Neotobrilus ampiei (Joubert & Heyns, 1979) Tsalolikhin, 1981 Male A); Posterior region showing supplements S1–S4 and Ductus ejaculatoris (DE); B) Arrow indicating flaggelloid sperm cells in male.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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