Sofía I. Arce

An unusual harvestman from Eocene Baltic amber presenting a previously unknown morphology of the pedipalps

Alexis Gerbe, Christian Bartel, Carolin Haug, Sofía I. Arce et autres

Harvestmen are common elements of the modern-day fauna, however, the fossil record of harvestmen is sparse, with only about 50 fossil species in comparison to almost 7000 extant species. A new fossil harvestman (Arachnida, Opiliones) is described here, from Eocene Baltic amber. …

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An adult wasp of Braconidae entangled with a beetle larva of Silvanidae in Baltic amber

Christine Kiesmüller, Ana Zippel, Swane Jung, André P. Amaral et autres

Braconidae, a highly diverse family of ichneumonoidean wasps, comprises over 21,000 described species.These parasitoid wasps are of growing interest in biological pest control due to their role in regulating insect populations.A new syninclusion in Baltic amber presents a female braconid wasp alongside …

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When opposites attract: a syninclusion of extinct mites and a bradytelic bristly millipede in Baltic amber

Jéhan Le Cadre, Jörg U. Hammel, Roland R. Melzer, Megan Short et autres

Abstract Amber resin is known for its exceptional preservations thanks to quick encapsulation of animals and plant material. Fast encapsulation not only helps preserve detailed organisms, but it also offers a glimpse into “frozen behaviors” from up to hundreds of million years, …

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Variación geográfica en el parasitismo por garrapatas e impacto en la fisiología inmune de la lagartija Psammodromus algirus a lo largo de su rango de distribución

Jorge Garrido-Bautista, Gregorio Moreno‐Rueda, Francisco Javier Zamora‐Camacho, Mar Comas et autres

Haematophagous ectoparasites draw resources from their hosts, reducing host body condition and altering haematology and immune physiology. The tick Ixodes ricinus is a hard tick whose immature stages can infest the lizard host Psammodromus algirus along its geographic distribution. However, few studies …

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Ácaros mesostigmátidos parásitos de aves silvestres y de corral en Sudamérica: estado actual del conocimiento y perspectivas a futuro

Sofía I. Arce, María José Saravia-Pietropaolo, Valeria Vanesa Corbalán, Marcela Lareschi

El orden Mesostigmata (Acari: Parasitiformes) incluye muchas de las especies de ácaros asociadas a las aves y a sus nidos. En aves silvestres, estos ácaros se relacionan con reducciones en el fitness de sus hospedadores, mientras que en aves de corral pueden …

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DATASET-Variación geográfica en el parasitismo por garrapatas e impacto en la fisiología inmune de la lagartija Psammodromus algirus a lo largo de su rango de distribución

Jorge Garrido-Bautista, Gregorio Moreno‐Rueda, Francisco Javier Zamora‐Camacho, Mar Comas et autres

Ecosistemas 34(2) 2931-Dataset

New Amber Fossils Indicate That Larvae of Dermestidae Had Longer Defensive Structures in the Past

Jéhan Le Cadre, Joshua Gauweiler, Joachim T. Haug, Sofía I. Arce et autres

Representatives of Dermestidae (skin, larder, and carpet beetles) play a crucial role as decomposers in global ecosystems, facilitating the recycling of animal and plant biomass to sustain nutrient cycling. Despite their widespread ecological presence and functional importance, the fossil record of their …

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MORPHOLOGICAL VARIATION OF LONG-LEGGED VELVET MITE LARVAE IN DEEP TIME

Sofía I. Arce, Florian Braig, Simon Linhart, Jéhan Le Cadre et autres

Parasitengona, an ingroup of Trombidiformes, is characterised by a complex life cycle, in which the larval stage is parasitic on animals. Larvae of erythraeoideans or long-legged velvet mites, one ingroup of Parasitengona, parasitise euarthropodan hosts and have extremely long legs that confer …

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Quantitative morphological comparison of rake-legged mites over the last 100 million years and the first fossil larva of Caeculidae

Alexis Gerbe, Carolin Haug, Florian Braig, Patrick Müller et autres

Abstract Rake-legged mites (Caeculidae) are ambush predators. The fossil record of the group Caeculidae is scarce, but includes a few well-preserved specimens in Miocene, Eocene and Cretaceous ambers. We report newly discovered specimens from approximately 100-million-year-old Kachin amber in Myanmar. The specimens …

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Drivers and consequences of nest ectoparasite pressure in tit nestlings

Sofía I. Arce, Jorge Garrido-Bautista, Catarina Cascão, Inês Vilhena et autres

Ectoparasites impose significant costs to their hosts and modulate their life-history traits. We evaluated the prevalence and abundance of louse flies, blowflies, fleas and mites in great tits ( Parus major ) and blue tits ( Cyanistes caeruleus ) breeding in nest …

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Morphological stasis in the mite family Caeculidae: Caeculus aeternus sp. nov., a remarkable fossil species of rake-legged mite from Baltic amber

Andrés O. Porta, Vanesa Mamani, Sofía I. Arce, Elián Leandro Guerrero et autres

Caeculus aeternus sp. nov. is described based on a single specimen preserved in Baltic amber (Eocene). This species is the second fossil representative of the genus Caeculus, and the third species of the genus known from Europe. The species has a remarkable …

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Morphological stasis in the mite family Caeculidae: Caeculus aeternus sp. nov., a remarkable fossil species of rake-legged mite from Baltic amber

Andrés O. Porta, Vanesa Mamani, Sofía I. Arce, Elián Leandro Guerrero et autres

Caeculus aeternus sp. nov. is described based on a single specimen preserved in Baltic amber (Eocene). This species is the second fossil representative of the genus Caeculus, and the third species of the genus known from Europe. The species has a remarkable …