Digenean parasites of Ciconiiform birds from Argentina Digéneos parásitos de aves Ciconiiformes de Argentina

Abstract. The helminthological survey of 13 specimens of 5 ciconiiform species revealed the presence of 10 species of intestinal digeneans: Sphincterodiplostomum musculosu

Longer and less overlapping food webs in anthropogenically disturbed marine ecosystems: confirmations from the past

The human exploitation of marine resources is characterised by the preferential removal of the largest species. Although this is expected to modify the structure of food webs, we have a relatively poor understanding of the potential consequences of such alteration. Here, we take advantage of a collection of ancient consumer tissues, using stable isotope analysis and SIBER to assess changes in the structure of coastal marine food webs in the South-western Atlantic through the second half of the Holocene as a result of the sequential exploitation of marine resources by hunter-gatherers, western sealers and modern fishermen. Samples were collected from shell middens and museums. Shells of both modern and archaeological intertidal herbivorous molluscs were used to reconstruct changes in the stable isotopic baseline, while modern and archaeological bones of the South American sea lion Otaria flavescens, South American fur seal Arctocephalus australis and Magellanic penguin Spheniscus magellanicus were used to analyse changes in the structure of the community of top predators. We found that ancient food webs were shorter, more redundant and more overlapping than current ones, both in northern-central Patagonia and southern Patagonia. These surprising results may be best explained by the huge impact of western sealing on pinnipeds during the fur trade period, rather than the impact of fishing on fish populations. As a consequence, the populations of pinnipeds at the end of the sealing period were likely well below the ecosystem's carrying capacity, which resulted in a release of intraspecific competition and a shift towards larger and higher trophic level prey. This in turn led to longer and less overlapping food webs

A new species of cosmocercoides (Nematoda; cosmocercidae) and other helminths in leptodactylus latrans (anura; leptodactylidae) from Argentina

Cosmocercoides latrans n. sp. (Cosmocercidae) from the small intestine of Leptodactylus latrans (Anura: Leptodactylidae) from Northeastern Province of Buenos Aires, Argentina is described. The new species can be distinguished from their congeners by a combination of the characters, among which stands out the number of rosette papillae, the lack of gubernaculum and the presence of lateral alae in both sexes. There are over 20 species in the genus Cosmocercoides, and Cosmocercoides latrans n. sp. represents the third species from the Neotropical realm and the second for Argentina. Additionally, seven previously known taxa are reported; Pseudoacanthocephalus cf. lutzi, Catadiscus uruguayensis, Rauschiella palmipedis, Aplectana hylambatis, Cosmocerca parva, Schrankiana sp. and Rhabdias elegans; providing literature records and information on distribution and host-parasite relationships.Fil: Draghi, Regina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología Invertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Drago, Fabiana Beatriz. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología Invertebrados; Argentina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; ArgentinaFil: Lunaschi, Lía Inés. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología Invertebrados; Argentin

Notocotylidae Luhe 1909

Family Notocotylidae Lühe, 1909 Catatropis Odhner, 1905 Catatropis chilinae Flores & Brugni, 2003 Natural host: unknown. Experimental hosts: Gallus gallus domesticus (L.), Anas sp. Site of infection: distal portion of ceca. Life history: Hi 1: Chilina dombeiana (Bruiguiere) (natural host) from Lacar Lake, Neuquén Province; metacercariae in digestive gland and around the intestine wall. Material deposited: MACN, MLP, UNC, MNZ, BMNH. Reference: Flores & Brugni (2003). Catatropis hatcheri Flores & Brugni, 2006 Natural host: Anas platyrhynchos Linnaeus. Experimental hosts: Anas sp.; Gallus gallus domesticus (L.). Site of infection: distal portion of ceca. Locality: near Hess Lake, Río Negro Province. Life history: Hi 1: Heleobia hatcheri (Pilsbry) (natural host) from Nahuel Huapí Lake, Río Negro Prov­ ince; metacercariae in digestive gland and around the intestine wall. Material deposited: MACN, MLP, UNC, BMNH. Reference: Flores & Brugni (2006). Notocotylus Diesing, 1839 Notocotylus attenuatus (Rudolphi, 1809) Kossack, 1911 Hosts: Anas versicolor Vieillot, Cygnus melanocorypha (Molina). Site of infection: gizzard, intestine, ceca. Locality: De Monte lagoon, Buenos Aires Province. References: Boero et al. (1972 a, 1972 b). Notocotylus biomphalariae Flores & Brugni, 2005 Natural host: unknown. Experimental hosts: Anas sp., Gallus gallus domesticus (L.). Site of infection: distal portion of ceca. Life history: Hi 1: Biomphalaria peregrina (d’Orbigny) (natural host) from Fantasma Pond, near Nahuel Huapí Lake and Pond near Mascardi Lake, Patagonia; metacercariae encysted in digestive gland and around the intestine wall. Material deposited: MACN, MLP, UNC, BMNH. Reference: Flores & Bugni (2005). Notocotylus chionis Baylis, 1928 Host: Chionis alba (Gmelin). Site of infection: ceca. Locality: Patagonia. Material deposited: BMNH. References: Baylis (1928), Boero et al. (1972 a). Notocotylus gibbus (Mehlis) Kossack, 1911 Host: Fulica leucoptera Vieillot. Site of infection: intestine. Locality: Buenos Aires Province. Reference: Szidat & Szidat (1961). Notocotylus imbricatus (Looss, 1893) Szidat, 1935 Host: Anas sibilatrix (Poepping). Site of infection: ceca. Locality: Pellegrini Lake, Río Negro Province. Material deposited: MLP, 751 D. Reference: Lunaschi & Sutton (1987). Notocotylus tachyeretis Duthoit, 1931 Host: Tachyeres patachonicus (King). Site of infection: large intestine and ceca. Locality: Patagonia. Reference: Boero et al. (1972 a).Published as part of Cremonte, Florencia & Drago, Fabiana B., 2007, Checklist of digenean parasites of birds from Argentina, pp. 1-36 in Zootaxa 1403 on pages 18-19, DOI: 10.5281/zenodo.27368

Diplodiscidae Cohn 1904

Family Diplodiscidae Cohn, 1904 <p> <i>Catadiscus</i> Cohn, 1904</p> <p> <i>Catadiscus freitaslenti</i> Ruiz, 1943</p> <p> Hosts and records: <i>Waglerophis merremi</i> (Wagler 1824) (Cba, SF, Ch), <i>Lystrophis dorbignyi</i> Duméril, Bibron & Duméril, 1854 (ER, C), <i>Erythrolamprus aesculapii</i> (Linnaeus, 1766) (M), <i>Liophis almadensis</i> (Wagler, 1824) (C), <i>Liophis flavifrenatus</i> (Cope 1862) (M), <i>Bothrops alternatus</i> Duméril, Bibron & Duméril, 1854 (SE), <i>B. neuwedii diporus</i> Cope 1862 (LR). Site of infection: large and small intestine.</p> <p>Reference: Caubisens Poumarau (1968).</p> <p> <i>Catadiscus longicoecalis</i> Caubisens Poumarau, 1965</p> <p> Hosts and records: <i>Bothrops neuwiedi diporus</i> Cope 1862 (Ch), <i>Waglerophis merremi</i> (Wagler 1824) (ER, Ch), <i>Lystrophis dorbignyi</i> Duméril, Bibron & Duméril, 1854 (SF), <i>Philodryas olfersii</i> (Liechtenstein, 1823) (S).</p> <p>Site of infection: small and large intestine.</p> <p>Reference: Caubisens Poumarau (1965, 1968).</p> <p> <i>Catadiscus uruguayensis</i> Freitas & Lent, 1939</p> <p> Host and record: <i>Liophis poecilogyrus</i> (Wied, 1825) (BA). Site of infection: intestine.</p> <p>Reference: Lunaschi & Drago (2002).</p>Published as part of <i>Lunaschi, Lía I. & Drago, Fabiana B., 2007, Checklist of digenean parasites of amphibians and reptiles from Argentina, pp. 51-68 in Zootaxa 1476</i> on page 56, DOI: <a href="http://zenodo.org/record/176772">10.5281/zenodo.176772</a&gt

Telorchiidae Stunkard 1924

Family Telorchiidae Stunkard, 1924 <p> <i>Telorchis</i> Lühe, 1899</p> <p> <i>Telorchis birabeni</i> Mañé Garzón & Gil, 1961</p> <p> Host and record: <i>Phrynops hilarii</i> (Duméril & Bibron, 1835) (C). Site of infection: small intestine.</p> <p>Reference: Lombardero & Moriena (1977).</p> <p> <i>Telorchis clava</i> (Diesing, 1850) Lühe, 1899</p> <p> Hosts and records: <i>Eunectes notaeus</i> Cope, 1862 (Ch), <i>Hydrodynastes gigas</i> (Duméril, Bibron & Duméril, 1854) (C).</p> <p>Site of infection: small intestine.</p> <p> References: Caubisens Poumarou (1968), Martínez <i>et al.</i> (1996).</p>Published as part of <i>Lunaschi, Lía I. & Drago, Fabiana B., 2007, Checklist of digenean parasites of amphibians and reptiles from Argentina, pp. 51-68 in Zootaxa 1476</i> on page 60, DOI: <a href="http://zenodo.org/record/176772">10.5281/zenodo.176772</a&gt

Leptodactylidae

Family Leptodactylidae Ceratophrys cranwelli Barrio, 1980 Haematoloechus longiplexus Stafford, 1902 Leptodactylus chaquensis Cei, 1950 Haematoloechus longiplexus Stafford, 1902 Leptodactylus laticeps (Boulenger, 1918) Glypthelmins chaquensis (Mañé-Garzón & Holcman-Spector, 1967) Leptodactylus latinasus Jiménez de la Espada, 1875 Bursotrema aff. tetracotyloides (metacercariae) Catadiscus inopinatus Freitas, 1941 Glypthelmins repanda (Rudolphi, 1819) Travassos, 1924 Haematoloechus longiplexus Stafford, 1902 Petasiger sp. (metacercariae) Styphlodora sp. (metacercariae) Travtrema aff. stenocotyle (metacercariae) Leptodactylus ocellatus (Linnaeus, 1758) Gorgodera australiensis Johnston, 1912 Gorgoderina parvicava Travassos, 1920 Haematoloechus ozorioi Freitas & Lent, 1939 Glypthelmins palmipedis (Lutz, 1928) Travassos, 1930 Glypthelmins biliaris Suriano, 1968 Halipegus dubius Klein, 1905 Catadiscus uruguayensis Freitas & Lent, 1939 Bursotrema tetracotyloides Szidat, 1960 (metacercariae) Pseudopaludicola boliviana Parker, 1927 Gorgoderina sp. Haematoloechus sp. Catadiscus sp. Bursotrema sp. (metacercariae) Travtrema sp. (metacercariae)Published as part of Lunaschi, Lía I. & Drago, Fabiana B., 2007, Checklist of digenean parasites of amphibians and reptiles from Argentina, pp. 51-68 in Zootaxa 1476 on page 62, DOI: 10.5281/zenodo.17677

Proterodiplostomidae Dubois 1936

Family Proterodiplostomidae Dubois, 1936 Chelonidiplostomum Sudarikov, 1960 Chelonidiplostomum testudinis (Dubois, 1936) Sudarikov, 1960 Syn. Herpetodiplostomum (Chelonidiplostomum) t. (Dubois) Sudarikov, 1960 Host and record: Phrynops hilarii (Duméril & Bibron, 1835) (C). Site of infection: intestine. Reference: Lombardero & Moriena (1977). Heterodiplostomum Dubois, 1936 Heterodiplostomum lanceolatum Dubois, 1936 Hosts and records: Bothrops alternatus Duméril, Bibron & Duméril, 1854 (SE, C, SF), Helicops infrataeniatus Jan, 1865 (BA), H. leopardinus (Schlegel, 1837) (Ch, C), Hydrodynastes gigas (Duméril, Bibron & Duméril, 1854) (C). Site of infection: small intestine. Material deposited: MLP 1091 C References: Caubisens Poumarou (1968), Lunaschi & Sutton (1985). Paradiplostomum La Rue, 1926 Paradiplostomum abbreviatum (Brandes, 1888) La Rue, 1926 Host and record: Caiman latirrostris (Daudin, 1802) (F). Site of infection: intestine. Material deposited: MLP 1518 C Reference: Lunaschi & Sutton (1990).Published as part of Lunaschi, Lía I. & Drago, Fabiana B., 2007, Checklist of digenean parasites of amphibians and reptiles from Argentina, pp. 51-68 in Zootaxa 1476 on page 55, DOI: 10.5281/zenodo.17677

Elapidae

Family Elapidae <p> <i>Micrurus frontalis</i> (Duméril, Bibron & Duméril, 1854)</p> <p> <i>Haplometroides buccicola</i> Odhner, 1911</p> <p> <i>Micrurus pyrrhocryptus</i> (Cope 1862)</p> <p> <i>Opisthogonimus lecithonotus</i> Lühe, 1900 <i>Styphlodora condita</i> Faria, 1911</p>Published as part of <i>Lunaschi, Lía I. & Drago, Fabiana B., 2007, Checklist of digenean parasites of amphibians and reptiles from Argentina, pp. 51-68 in Zootaxa 1476</i> on page 65, DOI: <a href="http://zenodo.org/record/176772">10.5281/zenodo.176772</a&gt

Plagiorchiidae (Luhe, 1901) Ward 1917

Family Plagiorchiidae (Lühe, 1901) Ward, 1917 <p> <i>Styphlodora</i> Looss, 1899</p> <p> <i>Styphlodora</i> sp.</p> <p> Host and records: <i>Leptodactylus latinasus</i> Jiménez de la Espada, 1875 (C). Site of infection: metacercariae in kidney. References: Hamann <i>et al.</i> (2006).</p> <p> <i>Travtrema</i> Pereira, 1928</p> <p> <i>Travtrema stenocotyle</i> (Cohn, 1902) Goodman, 1951 Host: <i>Hypsiboas pulchellus</i> (Duméril & Bibron, 1841) (BA). Site of infection: metacercariae in internal organs. Material deposited: MLP 1137 C, 1142 C Reference: Ostrowski de Núñez (1979b).</p> <p> <i>Travtrema</i> aff. <i>stenocotyle</i></p> <p> Host and records: <i>Leptodactylus latinasus</i> Jiménez de la Espada, 1875 (C). Site of infection: metacercariae in mesentery, body cavity, pharyngeal zone and muscle. References: Hamann <i>et al.</i> (2006).</p> <p> <i>Travtrema</i> sp.</p> <p> Hosts: <i>Pseudopaludicola boliviana</i> Parker, 1927 (C). Site of infection: metacercariae in mesentery. References: Duré <i>et al.</i> (2004).</p>Published as part of <i>Lunaschi, Lía I. & Drago, Fabiana B., 2007, Checklist of digenean parasites of amphibians and reptiles from Argentina, pp. 51-68 in Zootaxa 1476</i> on page 61, DOI: <a href="http://zenodo.org/record/176772">10.5281/zenodo.176772</a&gt