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Fig. 1 in A phylogenetically unresolved apicomplexan (APXSc) causing swirl lesions in the Tehuelche scallop, Aequipecten tehuelchus, from the Southwest Atlantic coast

Fig. 1. Sites where Tehuelche scallops were collected in this study. Sampling collection sites within San Jose´Gulf (Chubut province, Argentina): in the West domain, La Tapera, and in the East domain, Punta Conos.

Fig. 11 in A phylogenetically unresolved apicomplexan (APXSc) causing swirl lesions in the Tehuelche scallop, Aequipecten tehuelchus, from the Southwest Atlantic coast

Fig. 11. Interaction plot of the predicted prevalences of aplicomplexan (APXSc) as function of season in the wild Tehuelche scallop Aequipecten tehuelchus.

Fig. 10 in A phylogenetically unresolved apicomplexan (APXSc) causing swirl lesions in the Tehuelche scallop, Aequipecten tehuelchus, from the Southwest Atlantic coast

Fig. 10. Logistic regression of the presence or absence of apicomplexan (APXSc) parasite as a function of size (shell length) in the wild Tehuelche scallop Aequipecten tehuelchus. The tick marks along the bottom and top lines show the locations of the data points along the x-axis. The black dots indicate the mean and SE of the predicted proportions.

Fig. 8 in A phylogenetically unresolved apicomplexan (APXSc) causing swirl lesions in the Tehuelche scallop, Aequipecten tehuelchus, from the Southwest Atlantic coast

Fig. 8. Ultrastructure of mature merozoites of APXSc. (A–D) The ultrastructure of a mature merozoites showing four rhoptries (Rh), micronemes (Mn), amylopectin (Am), conoid (Co), dense granules (Dg) (A, B, C). Furthermore, a micropore (Mp) (B), a typical pellicle with an outer- middle- and inner membrane (Om, Mm, Im) (C) and a mitochondrion (Mi) (D).

Fig. 7 in A phylogenetically unresolved apicomplexan (APXSc) causing swirl lesions in the Tehuelche scallop, Aequipecten tehuelchus, from the Southwest Atlantic coast

Fig. 7. TEM microphotographs showing signs of endomerogony of APXSc. (A) A group of meronts, some of which with signs of spindle microtubules within the nucleus (white arrowhead) and one showing signs of asynchronous endomerogony (within the rectangle), i.e. where the merozoites develop inside the mother cell. (B) Higher magnification of presumable endomerogony, showing two forms inside a mother cell. Remains of the conoid of the mother cell are still visible (insert) but at the other end an apical complex a "progeny" seems to be forming (micronemes = Mn), while another merozoite has completely detached from the mother cell (arrow). (C) A dividing meront with visible spindle microtubules (arrow). N = nucleus; No = nucleolus; Mn = micronemes.

Fig. 6 in A phylogenetically unresolved apicomplexan (APXSc) causing swirl lesions in the Tehuelche scallop, Aequipecten tehuelchus, from the Southwest Atlantic coast

Fig. 6. TEM microphotographs showing ectomerogony of APXSc. (A–E) Pleomorphic maturing meronts, dividing by ectomerogony. (A) A developing meront in schizogony, within a parasitophorous vacuole (Pv). (B–C) Higher magnification of visible centriole (Ce) from (A), indicative of mitosis. (B) A centriole characteristic for apicomplexans, i.e. with 9 singlet microtubules arranged in a circular fashion, usually there is also one in the middle, i.e. 9 + 1, but this looks like 9 + 0, which is also known. (C) Dividing centriole (Ce), mother- (upper Ce) and daughter (lower Ce) centrioles. (D) Pleomorphic, dividing meront. Note the duplication of the nucleolus (No) within the nucleus (N) and the formation of two adjacent centrioles by division (white arrowheads). (E) A meront during schizogony, with pairs of centrioles (white arrowheads) visible at various sites in the cell. Abbreviations: N = nucleus; No = nucleolus; Ce = centriole; Dg = dense granules; Am = amylopectin; R = rhoptries; Mn = micronemes; Pv = parasitophorous vacuole; Pvm = parasitophorous vacuolar membrane.

Fig. 9 in A phylogenetically unresolved apicomplexan (APXSc) causing swirl lesions in the Tehuelche scallop, Aequipecten tehuelchus, from the Southwest Atlantic coast

Fig. 9. Maximum likelihood topology from phylogenetic analysis of the SSU rDNA of the main clades of apicomplexans and the basal Chrompodellids, using the dinoflagellates as an outgroup. Numbers at the nodes denote bootstrap support values (1000 replications) with the scale shown at the bottom of the tree. The sequence generated in this study is shown in bold and groups together with a parasite known to infect oysters in New Zealand. This novel clade does not show any phylogenetic affinity to the known clades of apicomplexans infecting marine and terrestrial animals and is placed at the base of the tree next to the Chrompodellids.

Fig. 4 in A phylogenetically unresolved apicomplexan (APXSc) causing swirl lesions in the Tehuelche scallop, Aequipecten tehuelchus, from the Southwest Atlantic coast

Fig. 4. HE stained section of merogony/schizogony of APXSc within the host. (A) APXSc trophozoite within a free hemocyte (white arrowhead: hemocyte nucleus) in the digestive gland connective tissue, showing signs of cleavage (black arrowheads). (B) A cluster of APXSc parasites in the digestive gland. The insert shows signs of early schizogony/ectomerogony (arrowhead). (C–D) Granulomatous swirl lesion with more advanced schizogony/ ectomerogony (D) (arrowhead). Within a cyst of 6–8 parasites in one hemocyte nucleus (Hn).

Fig. 5 in A phylogenetically unresolved apicomplexan (APXSc) causing swirl lesions in the Tehuelche scallop, Aequipecten tehuelchus, from the Southwest Atlantic coast

Fig. 5. Ultrastructure of common forms of APXSc. (A) An early trophozoite with a prominent nucleus (N) and nucleolus (No), amylopectin like structures (Am) and dense granules (Dg). The apical complex (Ac) is visible, presumably remains of the initial infective sporozoite. (B) A cluster of dividing pleomorphic/amoeboid forms (white arrowheads) and early trophozoites (black arrowhead) within hemocytes (Hn = hemocyte nucleus). (C) A developing trophozoite within a parasitophorous vacuole (Pv) surrounded by a parasitophorous vacuolar membrane (Pvm). (D) Two merozoites (Me) within a granuloma. Note the host cell nucleus (white arrowhead) and the surrounding fibroblast like hemocytes (black arrowheads).

Fig. 3 in A phylogenetically unresolved apicomplexan (APXSc) causing swirl lesions in the Tehuelche scallop, Aequipecten tehuelchus, from the Southwest Atlantic coast

Fig. 3. Host reaction and pathology related to APXSc. (A–E) Granulomatous swirl lesions within the Tehuelche scallop, a common host reaction to APXSc infection. (A) Semithin section stained with toluidine blue, showing typical swirl-like lesion, where fibroblast-like hemocytes (black arrowheads) surround groups of parasites, commonly 4–8 (black arrow). A larger granuloma is then formed around a cluster of these groups, forming a kind of double granuloma. (B) ISH sections of a similar swirl lesion as in (A), note the formation of numerous groups of parasites, each group apparently within one hemocyte (host nuclei: white arrowheads) and surrounded by fibroblast like hemocytes (black arrowheads). The insert shows a higher magnification of a cluster of the parasites. (C–E) Granulomatous swirl lesions with apparently degenerating parasites (*), surrounded by fibroblast like hemocytes (arrowheads). (C) = HE) = ISH.. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)

Fig. 2 in Infestation and distribution of chigger mites on Chevrieri's field mouse (Apodemus chevrieri) in Southwest China

Fig. 2. Theoretical curve fitting for the species abundance distribution of chigger mite community on Chevrieri's field mice (Apodemus chevrieri) in southwest China (2001–2019).

Fig. 1. The 91 in Infestation and distribution of chigger mites on Chevrieri's field mouse (Apodemus chevrieri) in Southwest China

Fig. 1. The 91 investigation sites and the captured sites where Chevrieri's field mice (Apodemus chevrieri) were captured in southwest China (2001–2019).

Fig. 4 in Analysis on infestation and related ecology of chigger mites on large Chinese voles (Eothenomys miletus) in five provincial regions of Southwest China

Fig. 4. The species abundance distribution of chigger mites on large Chinese voles (E. miletus) fitted by Preston's lognormal distribution model with the ̂– [0.27(R– 2)] 2 theoretical equation of S(R) = 34e.

Fig. 2 in Analysis on infestation and related ecology of chigger mites on large Chinese voles (Eothenomys miletus) in five provincial regions of Southwest China

Fig. 2. Niche breaths of the 18 main chigger species on large Chinese voles (E. miletus) along the combined environment series (multidimensional environment series) in the five provincial regions of Southwest China (2001–2019).

Fig. 1 in Analysis on infestation and related ecology of chigger mites on large Chinese voles (Eothenomys miletus) in five provincial regions of Southwest China

Fig. 1. Investigation sites (n = 91) in the five provincial regions of Southwest China between 2001 and 2019 (The sites marked "▴" were newly increased sites after 2013 and those marked "*" were the sites where large Chinese voles, E. miletus, were captured. The name abbreviations of the investigation sites were shown in "Appendix").

Fig. 3 in Analysis on infestation and related ecology of chigger mites on large Chinese voles (Eothenomys miletus) in five provincial regions of Southwest China

Fig. 3. The dendrogram of niche overlaps of the 18 main chigger species on large Chinese voles (E. miletus) along the combined environment series (multidimensional environment series) in the five provincial regions of Southwest China (2001–2019).

opencc-zeroJan 2024View details →

Linked collectors and determiners for: A review of the Subtribe Lebiina Bonelli (Lebiini, Carabidae, Coleoptera) from Southwest of Saudi Arabia.

Natural history specimen data linked to collectors and determiners held within, "A review of the Subtribe Lebiina Bonelli (Lebiini, Carabidae, Coleoptera) from Southwest of Saudi Arabia". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/2c7fe9b1-f5a7-4169-bcc0-d544c884e01f">https://bionomia.net/dataset/2c7fe9b1-f5a7-4169-bcc0-d544c884e01f</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/2c7fe9b1-f5a7-4169-bcc0-d544c884e01f">https://gbif.org/dataset/2c7fe9b1-f5a7-4169-bcc0-d544c884e01f</a>. Formatted as a Frictionless Data package.

opencc-zeroJan 2024View details →

Linked collectors and determiners for: Hesperis burdurensis (Brassicaceae), a new species from Southwest Anatolia.

Natural history specimen data linked to collectors and determiners held within, "Hesperis burdurensis (Brassicaceae), a new species from Southwest Anatolia". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/6e5bd4da-f50f-4162-ace0-fbfcc1354d65">https://bionomia.net/dataset/6e5bd4da-f50f-4162-ace0-fbfcc1354d65</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/6e5bd4da-f50f-4162-ace0-fbfcc1354d65">https://gbif.org/dataset/6e5bd4da-f50f-4162-ace0-fbfcc1354d65</a>. Formatted as a Frictionless Data package.

opencc-by-4.0Jun 2021View details →

Fig. 11 in Taxonomic revision of the species of Stenothemus from Southwest China (Coleoptera, Cantharidae), with the descriptions of five new species

Fig. 11. Aedeagus of Stenothemus laticornis Y. Yang & H. Liu sp. nov., holotype (MHBU HBU(E) 410045). A. Ventral view. B. Dorsal view. C. Lateral view. Scale bar = 0.5 mm.