Papers by Mariel Campbell
BioScience, Dec 16, 2020
The open-science movement seeks to increase transparency, reproducibility, and access to scientif... more The open-science movement seeks to increase transparency, reproducibility, and access to scientific data. As primary data, preserved biological specimens represent records of global biodiversity critical to research, conservation, national security, and public health. However, a recent decrease in specimen preservation in public biorepositories is a major barrier to open biological science. As such, there is an urgent need for a cultural shift in the life sciences that normalizes specimen deposition in museum collections. Museums embody an open-science ethos and provide long-term research infrastructure through curation, data management and security, and community-wide access to samples and data, thereby ensuring scientific reproducibility and extension. We propose that a paradigm shift from specimen ownership to specimen stewardship can be achieved through increased open-data requirements among scientific journals and institutional requirements for specimen deposition by funding and permitting agencies, and through explicit integration of specimens into existing data management plan guidelines and annual reporting.
Journal of Parasitology, Dec 1, 2003
peratures of 20-23 C. Marsupials infected with cestodes were collected in a transition zone betwe... more peratures of 20-23 C. Marsupials infected with cestodes were collected in a transition zone between Yungas and Chacoan vegetation.
Cestodes are reported from Didelphis albiventris Lund, 1840 and Micoureus cinereus Temminck, 1824... more Cestodes are reported from Didelphis albiventris Lund, 1840 and Micoureus cinereus Temminck, 1824 (Marsupialia: Didelphidae) in Argentina. These include a new species of Mathevotaenia Akhumyan, 1946 (Cestoda: Anoplocephalata) as well as M. bivittata (Janicki, 1904) and an unknown hymenolepidid cestode. Mathevotaenia argentinensis n. sp. is characterized by a relatively narrow strobila, 18-37 mm in total length and 1.0-1.5 mm in maximum width, 135-163 craspedote proglottids, 19- 27 testes, and a muscular genital atrium. This species differs from M. didelphidis (Rudolphi, 1819) in the disposition of the genital ducts between the excretory canals and in the entrance of the vagina into the genital atrium posterior to the cirrus pouch; from M. paraguayae Schmidt and Martin, 1978 in the disposition of the genital ducts, absence of a seminal receptacle, and presence of an armed cirrus; and from M. boliviana Sawada and Harada, 1986 and M. pennsylvanica Chandler and Melvin, 1951 in the presence of an armed cirrus. Linstowiines appear to be the dominant cestodes in New World marsupials, with M. bivittata representing the most prevalent and widely distributed species. The hymenolepidid is the first record of this family in Neotropical marsupials. Anoplocephalate cestodes of the subfamily Linstowiinae ap- pear to be widely distributed in New World marsupials despite the paucity of published information on marsupial helminths in the neotropics. Five species of Mathevotaenia Akhumyan, 1946 have been reported from didelphid marsupials: M. bivittata (Janicki, 1904), M. didelphidis (Rudolphi, 1819) Spasskii 1951, M. marmosae (Beddard, 1914), M. pennsylvanica (Chandler and Melvin, 1951), and M. surinamensis (Cohn, 1902). Math- evotaenia (syn. Oochoristica) bivittata has been reported from numerous genera of didelphid marsupials in Brazil (Janicki, 1904; Janicki, 1906; Baer, 1927b; Pereira and Machado Filho, 1968; Santos, 1968; Pinto and Gomes, 1976; Gomes, 1979),
Research Ideas and Outcomes
This joint statement aims at encouraging all authors, publishers and editors involved in scientif... more This joint statement aims at encouraging all authors, publishers and editors involved in scientific publishing to give the bibliographic source of the authorities of taxonomic names. This initiative, written by members of the three communities, has been approved by the executive boards of the SPNHC (Society for the Preservation of Natural History Collections), CETAF (Consortium of European Taxonomic Facilities) and BHL (Biodiversity Heritage Library).
Systematics and Biodiversity
<i> Hobergia</i> n. gen. ( Figs. 1–6) LSIDurn:lsid:zoobank.org:act: 439BC5C8-B0AE-410... more <i> Hobergia</i> n. gen. ( Figs. 1–6) LSIDurn:lsid:zoobank.org:act: 439BC5C8-B0AE-4108-94ED-044B34E1DB9D<b> Type and only species:</b><i> Hobergia irazuensis</i><b> n. gen., n. sp.</b><b> Diagnosis:</b> Hymenolepididae, Hymenolepidinae. Strobila elongate, widest at level just anterior to terminal gravid proglottids. Strobila attenuated and narrowest in neck region, posteriad to scolex. Scolex with four fully developed and separate suckers ( Fig. 1). Each sucker with foveola and associated structures. Foveolae completely contain suckers when suckers are retracted ( Fig. 2). Apical organ, piriform ( Fig. 1). Anterior most part of osmoregulatory canals not penetrating apical organ sac. Transverse tubes connect ventral osmoregulatory canals. Genital ducts pass dorsal to osmoregulatory canals. Genital pores dextral, marginal, and unilateral. Cirrus sac, internal seminal vesicle, and external seminal vesicle dorsal to seminal receptacle, ovary, vitelline gland, and Mehlis' gland. Vitelline and Mehlis' glands posterior and slightly ventral to divided ovary. Two laterally extended lobes of ovary, connected by narrow isthmus, clearly lie on each side of vitelline gland. Gravid proglottids with transverse saccular uterus. Terminology of egg morphology follows Ubelaker (1980). Eggs ( Fig. 6) subspherical, embryophore larvae with three pairs of hooks, including: 1 st pair dimorphic consisting of 1 small and 1 large hook, 2 nd (middle pair) monomorphic delicate, 3 rd pair dimorphic consisting of 1 small and 1 large hook. Large embryo hooks have a wide and thick guard compared to the small embryo hooks of both the middle pair and the paired small-hooks of 1 st and 3 rd pairs. Middle pair of embryo hooks identical, with falcate blade having shallow curve and with most delicate and narrow guard of all three embryo hook types ( Fig. 6).<b> Etymology:</b> The new genus is named in honor of Dr. Eric P. Hoberg who was the last curator of the United States National Parasite Collection. We honor Eric's life-long dedication and acknowl [...]
<i> Hymenolepis cratogeomyos</i> n. sp. ( Figs. 7–9) LSIDurn:lsid:zoobank.org:act: BB... more <i> Hymenolepis cratogeomyos</i> n. sp. ( Figs. 7–9) LSIDurn:lsid:zoobank.org:act: BB0861E9-71F4-4618-92BB-601F156C12F0<b> Symbiotype host:</b> (see Frey<i> et al</i>., 1992). Volcán De Toluca Pocket Gopher,<i> Cratogeomys planiceps</i> Merriam 1895 ( Rodentia: Geomyidae).<b> Symbiotype catalog number:</b> LSUMZ 36120.<b> Type locality/collection date.</b> Mexico, 10 km S, 16 km W Toluca, 3,000 m; lat. 19° 11' 52.8"N, long. 99° 48' 36"W; 17 February 1998.<b> Collector:</b> Mark S. Hafner.<b> Site of infection:</b> Small intestine.<b> Prevalence:</b> 100% of those examined; one infected of one specimen examined.<b> Specimens deposited:</b> Holotype, HWML139035.<b> Specimens examined:</b> Paratypes: HWML 139036, HWML 139037, HWML 139038, HWML 139039..<b> Description:</b> All specimens available were studied, including one full and 2 partial). At time of collection, specimens were placed directly into 95% ethanol, and so are extremely contracted, with only a few mature proglottids non-contracted and available to examine. Scolex ( Fig. 7) unarmed, length N = 2, 198–203 (200 ± 2.6), maximum width N = 2, 209–227 (218 ± 12.6). Apical organ (AO), N = 1, 21.8–21.8 (21.8 ± 0) long. Osmoregulatory ducts terminate at base of AO, but do not appear to penetrate AO ( Fig. 7). Apical organ sac, N = 3, 55–59 (57 ± 2) long by, N = 2, 33–37 (34.8 ± 2.9) wide. Apical organ sac not extending farther than posterior margins of suckers. Suckers, N = 6, 109–117 (112 ± 3) long by, N = 4, 84–89 (87 ± 2) wide. Neck, N = 1, 375–375 (375 ± 0) long by N = 2, 169–172 (170 ± 2.3) in maximum width. Strobila, N = 2, 88.28–128.58 mm (108.42 ± 28.49 mm) long, with 1,257 –1,266 (1,262 ± 6) proglottids; maximum width 2.72–3.41 mm (3.06 ± 0.49 mm) attained in gravid proglottids. Strobila anapolytic. Strobilar margins craspedote with intersegmental divisions plainly visible in mature and gravid proglottids; length: width ratio of mature and gravid proglottids 0.09–0.178 (N = 4) and 0.11–0.177 (N =4), respectively. Genital pores marginal, dextral, and no [...]
FIGURE 3. Image of distal end of cirrus sac of Hobergia irazuensis n. gen., n. sp. showing the sp... more FIGURE 3. Image of distal end of cirrus sac of Hobergia irazuensis n. gen., n. sp. showing the spinose nature of the cirrus (line).
PLEASE CONTACT AUTHORS IF YOU CONTRIBUTE AND WOULD LIKE TO BE LISTED AS A CO-AUTHOR. (this messag... more PLEASE CONTACT AUTHORS IF YOU CONTRIBUTE AND WOULD LIKE TO BE LISTED AS A CO-AUTHOR. (this message will be removed some time weeks/months after the first publication) Terrestrial Parasite Tracker indexed biotic interactions and review summary. The Terrestrial Parasite Tracker (TPT) project began in 2019 and is funded by the National Science foundation to mobilize data from vector and ectoparasite collections to data aggregators (e.g., iDigBio, GBIF) to help build a comprehensive picture of arthropod host-association evolution, distributions, and the ecological interactions of disease vectors which will assist scientists, educators, land managers, and policy makers. Arthropod parasites often are important to human and wildlife health and safety as vectors of pathogens, and it is critical to digitize these specimens so that they, and their biotic interaction data, will be available to help understand and predict the spread of human and wildlife disease. This data publication contains ...
Arctic Science, 2017
The Beringian Coevolution Project (BCP), a field program underway in the high northern latitudes ... more The Beringian Coevolution Project (BCP), a field program underway in the high northern latitudes since 1999, has focused on building key scientific infrastructure for integrated specimen-based studies on mammals and their associated parasites. BCP has contributed new insights across temporal and spatial scales into how ancient climate and environmental change have shaped faunas, emphasizing processes of assembly, persistence, and diversification across the vast Beringian region. BCP collections also represent baseline records of biotic diversity from across the northern high latitudes at a time of accelerated environmental change. These specimens and associated data form an unmatched resource for identifying hidden diversity, interpreting past responses to climate oscillations, documenting contemporary conditions, and anticipating outcomes for complex biological systems in a regime of ecological perturbation. Because of its dual focus on hosts and parasites, the BCP record also prov...
Proceedings of TDWG, 2017
Cestodes are reported from Didelphis albiventris Lund, 1840 and Micoureus cinereus Temminck, 1824... more Cestodes are reported from Didelphis albiventris Lund, 1840 and Micoureus cinereus Temminck, 1824 (Marsupialia: Didelphidae) in Argentina. These include a new species of Mathevotaenia Akhumyan, 1946 (Cestoda: Anoplocephalata) as well as M. bivittata (Janicki, 1904) and an unknown hymenolepidid cestode. Mathevotaenia argentinensis n. sp. is characterized by a relatively narrow strobila, 18–37 mm in total length and 1.0–1.5 mm in maximum width, 135–163 craspedote proglottids, 19–27 testes, and a muscular genital atrium. This species differs from M. didelphidis (Rudolphi, 1819) in the disposition of the genital ducts between the excretory canals and in the entrance of the vagina into the genital atrium posterior to the cirrus pouch; from M. paraguayae Schmidt and Martin, 1978 in the disposition of the genital ducts, absence of a seminal receptacle, and presence of an armed cirrus; and from M. boliviana Sawada and Harada, 1986 and M. pennsylvanica Chandler and Melvin, 1951 in the presen...
A new species of cestode of the genus Linstowia (Cestoda: Anoplocephalidae) is described from mar... more A new species of cestode of the genus Linstowia (Cestoda: Anoplocephalidae) is described from marsupials of the genera Thylamys and Monodelphis. The new species (Linstowia schmidti) differs from Linstowia iheringi Zschokke, 1904, in having a much smaller strobila and reduced number of proglottids, and in the distribution of the eggs in gravid proglottids. In Bolivia, cestodes of the genus Linstowia appear to have a restricted geographic distribution, occurring in marsupials only in southeastern Bolivia near the western margin of the Chaco. This host-parasite association may represent an ecological-historical relict
Pritchardia boliviensis n. gen. n. sp. (Anoplocephalidae: Linstowiinae) is described from marsupi... more Pritchardia boliviensis n. gen. n. sp. (Anoplocephalidae: Linstowiinae) is described from marsupials (Marmosops noctivagus, Metachirus nudicaudatus, Gracilinanus sp.) collected in Bolivia and Paraguay. These cestodes have a very small strobila with only three segments, regularly alternating genital pores, genital ducts crossing excretory canals ventrally, ovoid to pyriform cirrus sac, three to five testes, external seminal vesicle present and separated from cirrus sac by long seminal duct surrounded by glandular material, uterus ephemeral, eggs forming rapidly in gravid segments, and seminal receptacle present. Pritchardia boliviensis n. sp. includes a single species that occurs in small marsupials in the family Didelphidae of the lowlands and Yungas of Bolivia and Atlantic forests of Paraguay
Biodiversity Information Science and Standards, 2018
Arctos (https://arctosdb.org), an online collection management information system, was developed ... more Arctos (https://arctosdb.org), an online collection management information system, was developed in 1999 to manage museum specimen data and to make those data publicly available. The portal (arctos.database.museum) now serves data on over 3.5 million cataloged specimens from more than 130 collections throughout North America in an instance at the Texas Advanced Computing Center. Arctos also is a community of museum professionals that collaborates on museum best practices and works together to improve Arctos data richness and functionality for on-line museum data streaming. In 2017, three large Arctos genomics collections at the Museum of Southwestern Biology (MSB), Museum of Vertebrate Zoology, Berkeley (MVZ), and University of Alaska Museum of the North (UAM), received support from GGBN to create a pipeline for publishing data from Arctos to the GGBN portal. Modifications to Arctos included standardization of controlled vocabulary for tissues; changes to the data structure and code...
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Papers by Mariel Campbell