Insects found in birds' nests from Argentina: Tachycineta leucorrhoa leucorrhoa (Vieillot, 1817) [Aves: Hirundinidae], a new host for Acanthocrios furnarii (Cordero & Vogelsang, 1928) [Hemiptera: Cimicidae]

Zootaxa ◽  
2008 ◽  
Vol 1896 (1) ◽  
pp. 1-24
Author(s):  
OSVALDO DI IORIO ◽  
FLORENCIA BULIT ◽  
FLORENCIA ALDATZ ◽  
VIVIANA MASSONI

Nest-boxes used by the White-rumped Swallows, Tachycineta leucorrhoa leucorrhoa (Vieillot, 1817) [Aves: Hirundinidae] were sampled during two consecutive breeding seasons in the province of Buenos Aires, Argentina. A total of 11 taxa of insects were found in the nests of this species: 10 in the order Coleoptera: Coccinellidae [Cycloneda ancoralis; Scymnus sp.]; Cavognathidae [Cavognatha sp.]; Aphodiidae [Aphodius sp.]; Dermestidae [Trogoderma sp.; Dermestes maculatus]; Histeridae [Saprinus sp.]; Carabidae [Notaphus fisheri; Bradycellus sp.]; Elateridae [undetermined sp.]; Undetermined family (larvae), and one in the order Hemiptera: Cimicidae [Acanthocrios furnarii]. These insects were differentiated from prey remains, sometimes entire specimens. The species of Cimicidae appeared in two different nests built in the same box by the same female. The composition of the insect fauna found in swallows’ nests is similar to those in natural birds’ nests from the same province, but the diversity, abundance and richness in swallows’ nests inside boxes were lower.

Zootaxa ◽  
2008 ◽  
Vol 1871 (1) ◽  
pp. 1 ◽  
Author(s):  
PAOLA TURIENZO ◽  
OSVALDO DI IORIO

Insects found in the nests of Anumbius annumbi (Vieillot) [Aves: Furnariidae] from the provinces of Buenos Aires, Santa Fe, Entre Ríos, and La Pampa (Argentina) were studied. A total of 20 nests was sampled every 21 days in Buenos Aires, together with the insects found under ritidome of Eucalyptus in the same area. Samples from nests were divided by seasons: end of summer [nest 1]; autumn [nests 2 to 6]; winter [nests 7 to 12]; spring [nests 13 to 16]; summer [nests 17 to 19], and beginning of autumn [nest 20]. A total of 92 species of insects was found, of which only 36 species had been previously reported in the literature from 1943 until 2005. Additional nests were sampled from Santa Fe (3 nests), Entre Ríos (1 nest), and La Pampa (4 nests). Species richness, abundance and diversity per nest are given and discussed. Insects in birds´nests are classified according to their functional guilds (predators; hematophages and parasitoids; detritivores; phytophages and fungivorous); degree of permanence in the nests (temporal inhabitants [hibernants]; permanent inhabitants; accidentals and/or occasionals). Mortality among the insect fauna inside the nests and other dead insects found inside nests, probably prey remains, are cited. The insect fauna under the ritidome of Eucalyptus permits establishment of a habitat gradient: species only found in the nests, species mainly found in the nests and rarely under the ritidome, species found both under the ritidome and in the nests, species mainly found under ritidome and seldom in the nests, and species only found under the ritidome. Comments and remarks are made on selected taxa lacking or with limited biological data. The microhabitat in the tunnels of Ctenomys [Rodentia] is compared with the birds’nests regarding its similar insect fauna. Inquiline birds and mammals are also mentioned.


2016 ◽  
Vol 53 (1) ◽  
pp. 81-86 ◽  
Author(s):  
N. P. Scioscia ◽  
P. M. Beldomenico ◽  
G. M. Denegri

SummaryThe present study reports the first case of infection by Pterygodermatites affinis in Lycalopex gymnocercus, and the first report of this nematode in Argentina. Examining 80 foxes from Buenos Aires province, specimens of this species were recovered from 21.25 % of the small intestines and eggs were found in 7.5 % of the fecal samples.


2017 ◽  
Vol 57 (37) ◽  
pp. 473
Author(s):  
José Matias Rusconi ◽  
Maria Fernanda Achinelly ◽  
Nora Beatriz Camino

Thelastomatidae is one of the largest families parasitizing insects, within the order Oxyurida. In this work we reported parasitism in nymphs and adults of Neocurtilla claraziana by two different thelastomatid species as a part of a field survey on agricultural pests. Nymphs and adults of this insect were isolated from grasslands of Buenos Aires State, Argentina using a tensio-active solution. The nematode species Gryllophila skrjabini Sergiev, 1923 and Cephalobellus magalhaesi Schwenk, 1926 are briefly described and measurements are given. Both nematodes are reported for the first time in Argentina with C. magalhaesi being the second isolation of this species in the world. Neocurtilla clarziana is a new host record for G. skrjabini.


1993 ◽  
Vol 71 (8) ◽  
pp. 1534-1542 ◽  
Author(s):  
Jaime Potti

Ontogenetic, genetic, and environmental variation in egg length, breadth, and volume were investigated in the Pied Flycatcher across four breeding seasons in central Spain. Egg length and breadth were poorly correlated and did not vary with laying date. There was an indication of decreasing egg breadth with increasing clutch size that may indicate a trade-off between both variables. Egg size increased with female condition and, independently, with territory quality. Mean egg size decreased with advancing female age, which is perhaps related to the increase of clutch size with age in this species. There were high, significant repeatabilities of almost all egg dimensions, including relative volumes of first and last eggs, among females, both within and between years. Also, nest boxes were repeatable in the relative volume of the last eggs of (different) females laying in them, suggesting an influence of territory quality on relative egg size. Territory quality also had positive influences on some egg measurements that were independent of female condition. Heritability, estimated by mother–daughter regression, was significant only for egg length. These results are discussed in relation to proximate constraints on egg formation, predictions from the brood-survival hypothesis, and a possible trade-off between clutch and egg sizes.


Behaviour ◽  
2002 ◽  
Vol 139 (5) ◽  
pp. 677-693 ◽  
Author(s):  
Juan Moreno ◽  
Marta Arenas ◽  
Sara Sánchez ◽  
José Veiga

AbstractThe males' trade-off between caring for the offspring or investing in attracting additional mates is well established in the theory of mating systems. The reproductive consequences for males of alternative strategies adopted by them in response to these conflicting demands should depend on several ecological and social factors that may strongly vary among years. This variation, however, has been rarely addressed in field studies despite it being essential to understand the evolution of parental care in facultatively polygynous species. In the present paper, we examine the reproductive consequences of paternal vs. territorial strategies in the polygynous spotless starling (Sturnus unicolor) during four consecutive breeding seasons (1996-1999) in which the number of male defending nest boxes and several population variables such as nestling starvation rates, nest predation rates and fledgling production varied markedly. In 1996 we manipulated the propensity of males to feed their offspring by means of androgens and antiadrogens, and examined the consequences of male behaviour on reproductive success during the subsequent four breeding seasons. Males implanted in1996 with the antiandrogen cyproterone acetate (Cy-males) fed more frequently than males implanted with testosterone (T-males) or control males (C-males) both during the season in which they were implanted and in the next season. The number of nest boxes defended influenced total breeding success mainly in the years when male feeding frequency was less important for breeding success per nest. A lower proportion of Cy-males than T- or C-males still held at least a nest box in 1999, three years after they were implanted. As a result, the number of fledglings produced over the four years studied was smaller for Cy-males than for T- or C-males. These results suggest that the oscillating selective forces acting on breeding male starlings seem to operate more frequently against the development of parental care strategies, while the polygynous strategy seems to be favoured under a wide array of ecological conditions. Although increased density of potential breeders may constrain territorial expansion and polygyny, the high cost of losing a minimum breeding site may select for the maintenance of aggressive behaviour and low parental investment.


Zootaxa ◽  
2018 ◽  
Vol 4394 (2) ◽  
pp. 251 ◽  
Author(s):  
ALI FALAHATPISHEH ◽  
MAJID FALLAHZADEH ◽  
ABU FAZEL DOUSTI ◽  
GÉRARD DELVARE

The current paper presents new data on the nomenclature and distribution of Chalcididae (Hymenoptera, Chalcidoidea) collected in various regions of Iran. The following new synonymies are proposed: Brachymeria argenteopilosa (Radoszkowski, 1876) = Chalcis persica Masi, 1824 syn. nov., Brachymeria albicrus (Klug, 1834) = Chalcis rufigaster Masi, 1924 syn. nov. and Bucekia differens (Bouček, 1949) = B. Boučeki Nikol'skaya, 1960 syn. nov. The status of Lasiochalcidia [described under Euchalcis] igiliensis (Masi, 1916) is resurrected and is removed from synonymy with L. pubescens (Klug). Lectotypes are designated for Chalcis kassalensis Kirby, 1886, Halticella subelongata Kohl, 1906 and Chalcis pubescens Klug, 1834. Two genera, Bucekia Steffan, 1951 and Euchalcis Dufour, 1861, as well as eight species, Brachymeria kassalensis (Kirby, 1886), Dirhinus anthracia Walker, 1846, Antrocephalus subelongatus (Kohl, 1906), Bucekia differens (Bouček, 1949), Euchalcis unicolor (Lucas, 1871), L. rubripes (Kieffer, 1899), Psilochalcis dentata (Steffan, 1951) and P. subdola (Nikol'skaya, 1960), are new records for the Iranian insect fauna. A new host is recorded for E. unicolor. A list of 68 species in 18 genera of Chalcididae known from Iran is also included and some previous erroneous records are discussed. 


2005 ◽  
Vol 65 (4) ◽  
pp. 631-637 ◽  
Author(s):  
M. S. Couri ◽  
F. L. Rabuffetti ◽  
J. C. Reboreda

Philornis Meinert is a very interesting Muscidae (Diptera) genus whose larvae are associated with a wide range of bird species. The existing description of Philornis seguyi Garcia (1952), which was reported in Argentina, so far involves only the female. During the 2000-2002 breeding seasons, we collected Philornis flies from six bird species in Buenos Aires province, Argentina. All the flies were identified as P. seguyi. Based on this material, we describe the larva, puparium, adult male, and male and female terminalia. All the host associations presented here - Mimus saturninus (Mimidae), Troglodytes aedon (Troglodytidae), Pitangus sulfuratus (Tyrannidae), Pyrocephalus rubinus (Tyrannidae), Satrapa icterophrys (Tyrannidae) and Molothrus bonariensis (Icteridae) in nests of M. saturninus and Troglodytes aedon - are new for P. seguyi. We also present some data on the biology of the species.


Check List ◽  
2010 ◽  
Vol 6 (3) ◽  
pp. 382 ◽  
Author(s):  
Fabiana B. Drago ◽  
Lía Inés Lunaschi

Australapatemon canadensis Dubois and Rausch, 1950 (Digenea, Strigeidae) is reported parasitizing to Cygnus melancoryphus (Molina) (Anatidae) from Lacombe Lagoon, Buenos Aires Province and Pellegrini Lake Río Negro Province, Argentina. This species is described and compared with related species. The finding of A. canadensis in C. melancoryphus in Argentina represents a new host record extending to South America the geographical distribution of this species.


2012 ◽  
Vol 22 (4) ◽  
pp. 371-382 ◽  
Author(s):  
IGNACIO ROESLER ◽  
SANTIAGO IMBERTI ◽  
HERNÁN CASAÑAS ◽  
BETTINA MAHLER ◽  
JUAN CARLOS REBOREDA

SummaryWe estimated the present population size of the Hooded Grebe Podiceps gallardoi and compared it with the population in 1985. During the breeding seasons 2009/2010 and 2010/2011 we monitored 251 lakes on the main plateaus of Santa Cruz province, southern Patagonia, Argentina, where the entire population of Hooded Grebes spends the breeding season. During 2009/2010 we monitored 131 lakes and observed 521 Hooded Grebes in 16 lakes, while during 2010/2011 we monitored 186 lakes and observed 535 individuals in 14 lakes. At both breeding seasons five lakes contained near 85% of the population. We only observed 6 breeding colonies, two in 2009/2010 and four in 2010/2011, totalling 242 nesting attempts. Nearly 90% of the nests failed during egg stage, mainly due to strong winds and depredation by American mink Neovison vison. Only 28 nests hatched chicks, but none of the young survived to independence due to low temperatures. We compared the results of our 2010/2011 survey with one conducted during 1984/1985 and detected that the population diminished by approximately 80%. This decline was observed on all but one plateau (“Buenos Aires”) where most breeding attempts occurred. Our results show that at present Hooded Grebes are highly dependent on a few suitable lakes where they congregate to breed. We analyse possible causes for the decline of the population and propose conservation actions to protect this species.


Zootaxa ◽  
2013 ◽  
Vol 3630 (3) ◽  
pp. 582-590 ◽  
Author(s):  
OSVALDO DI IORIO ◽  
PAOLA TURIENZO ◽  
LAURA BRAGAGNOLO ◽  
MIGUEL ÁNGEL SANTILLÁN ◽  
JUAN MANUEL GRANDE

Acanthocrios furnarii (Cordero & Vogelsang, 1928) [Hemiptera: Cimicidae: Haematosiphoninae] is an ectoparasite on avian hosts from Argentina and Uruguay. It has been mostly found in mud nests of Furnarius rufus (Gmelin, 1788) [Aves: Furnariidae], but its true hosts are some of the inquiline birds that use F. rufus nests. These inquiline hosts belong to the families Emberizidae, Hirundinidae, Icteridae, Passeridae, and Troglodytidae. Outside F. rufus mud nests, A. furnarii has been found in nests of other Furnariidae, Hirundinidae, and Passeridae. The present work adds the first nonpasserine host (Falconidae) of A. furnarii, together with new records in La Pampa, Argentina. The transmission mechanism of A. furnarii, together with all other cimicid bugs from Argentina and adjacent countries, is increased considering this new host; and we also take into account the birds that nidificate in nest boxes, the cavity-nesting birds in trees and earth, and the inquiline birds in stick nests of Furnariidae and Psittacidae.


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