Effects of acute maternal stress induced by predator cues on spatial learning and memory of offspring in the subterranean rodent Ctenomys talarum
Anim Cogn. 2023 Aug 26. doi: 10.1007/s10071-023-01822-w. Online ahead of print.ABSTRACTOne of the main selection pressures to which animals are exposed in nature is predation, which affects a wide variety of biological traits. When the mother experiences this stressor during pregnancy and/or lactation, behavioral and physiological responses may be triggered in the offspring as well. Thus, in order to broaden and deepen knowledge on the transgenerational effects of predation stress, we evaluated how maternal stress experienced during pregnancy and/or lactation affects the spatial abilities of progeny at the onset of adultho...
Source: Animal Cognition - August 26, 2023 Category: Zoology Authors: J Iribarne V Brachetta M Kittlein C Schleich R Zenuto Source Type: research
Cranial asymmetry in odontocetes: a facilitator of sonic exploration?
In this study, we investigated how cranial asymmetry varies across odontocete species both in terms of quality (i.e., shape), and quantity (magnitude of deviation from symmetry). We investigated 72 species across all ten families of Odontoceti using two-dimensional geometric morphometrics. The average asymmetric shape was largely consistent across odontocetes - the rostral tip, maxillae, antorbital notches and braincase, as well as the suture crest between the frontal and interparietal bones were displaced to the right, whereas the nasal septum and premaxillae showed leftward shifts, in concert with an enlargement of the r...
Source: Zoology - August 26, 2023 Category: Zoology Authors: Ma íra Laeta Jo ão A Oliveira Salvatore Siciliano Olivier Lambert Frants H Jensen Anders Galatius Source Type: research
Effects of insulin-like growth factor-1 on the proliferation and apoptosis of stallion testicular cells under normal and heat stress culture conditions
This study investigated the effect of heat stress on stallion testicular cells (TCs) and the effect of insulin-like growth factor (IGF)-1 on TC viability, proliferation, and apoptosis, including different stages of germ cells. TCs were divided into control or treatment groups with 0.01, 0.1, 1, 10, and 100 ng/mL of recombinant human IGF-1 (rhIGF-1) for 24 h at 34 °C and 37 °C. The population and viability were measured before and after treatment. The effects of rhIGF-1 on TC viability, proliferation, and apoptosis were determined using RT-qPCR. Proliferating cell nuclear antigen (PCNA) and marker of proliferation Ki-67 (...
Source: Animal Reproduction Science - August 26, 2023 Category: Zoology Authors: Muhammad Shakeel Minjung Yoon Source Type: research
Effects of acute maternal stress induced by predator cues on spatial learning and memory of offspring in the subterranean rodent Ctenomys talarum
Anim Cogn. 2023 Aug 26. doi: 10.1007/s10071-023-01822-w. Online ahead of print.ABSTRACTOne of the main selection pressures to which animals are exposed in nature is predation, which affects a wide variety of biological traits. When the mother experiences this stressor during pregnancy and/or lactation, behavioral and physiological responses may be triggered in the offspring as well. Thus, in order to broaden and deepen knowledge on the transgenerational effects of predation stress, we evaluated how maternal stress experienced during pregnancy and/or lactation affects the spatial abilities of progeny at the onset of adultho...
Source: Animal Cognition - August 26, 2023 Category: Zoology Authors: J Iribarne V Brachetta M Kittlein C Schleich R Zenuto Source Type: research
Cranial asymmetry in odontocetes: a facilitator of sonic exploration?
In this study, we investigated how cranial asymmetry varies across odontocete species both in terms of quality (i.e., shape), and quantity (magnitude of deviation from symmetry). We investigated 72 species across all ten families of Odontoceti using two-dimensional geometric morphometrics. The average asymmetric shape was largely consistent across odontocetes - the rostral tip, maxillae, antorbital notches and braincase, as well as the suture crest between the frontal and interparietal bones were displaced to the right, whereas the nasal septum and premaxillae showed leftward shifts, in concert with an enlargement of the r...
Source: Zoology - August 26, 2023 Category: Zoology Authors: Ma íra Laeta Jo ão A Oliveira Salvatore Siciliano Olivier Lambert Frants H Jensen Anders Galatius Source Type: research
Cranial asymmetry in odontocetes: a facilitator of sonic exploration?
In this study, we investigated how cranial asymmetry varies across odontocete species both in terms of quality (i.e., shape), and quantity (magnitude of deviation from symmetry). We investigated 72 species across all ten families of Odontoceti using two-dimensional geometric morphometrics. The average asymmetric shape was largely consistent across odontocetes - the rostral tip, maxillae, antorbital notches and braincase, as well as the suture crest between the frontal and interparietal bones were displaced to the right, whereas the nasal septum and premaxillae showed leftward shifts, in concert with an enlargement of the r...
Source: Zoology - August 26, 2023 Category: Zoology Authors: Ma íra Laeta Jo ão A Oliveira Salvatore Siciliano Olivier Lambert Frants H Jensen Anders Galatius Source Type: research
Cranial asymmetry in odontocetes: a facilitator of sonic exploration?
In this study, we investigated how cranial asymmetry varies across odontocete species both in terms of quality (i.e., shape), and quantity (magnitude of deviation from symmetry). We investigated 72 species across all ten families of Odontoceti using two-dimensional geometric morphometrics. The average asymmetric shape was largely consistent across odontocetes - the rostral tip, maxillae, antorbital notches and braincase, as well as the suture crest between the frontal and interparietal bones were displaced to the right, whereas the nasal septum and premaxillae showed leftward shifts, in concert with an enlargement of the r...
Source: Zoology - August 26, 2023 Category: Zoology Authors: Ma íra Laeta Jo ão A Oliveira Salvatore Siciliano Olivier Lambert Frants H Jensen Anders Galatius Source Type: research
Cranial asymmetry in odontocetes: a facilitator of sonic exploration?
In this study, we investigated how cranial asymmetry varies across odontocete species both in terms of quality (i.e., shape), and quantity (magnitude of deviation from symmetry). We investigated 72 species across all ten families of Odontoceti using two-dimensional geometric morphometrics. The average asymmetric shape was largely consistent across odontocetes - the rostral tip, maxillae, antorbital notches and braincase, as well as the suture crest between the frontal and interparietal bones were displaced to the right, whereas the nasal septum and premaxillae showed leftward shifts, in concert with an enlargement of the r...
Source: Zoology - August 26, 2023 Category: Zoology Authors: Ma íra Laeta Jo ão A Oliveira Salvatore Siciliano Olivier Lambert Frants H Jensen Anders Galatius Source Type: research
Cranial asymmetry in odontocetes: a facilitator of sonic exploration?
In this study, we investigated how cranial asymmetry varies across odontocete species both in terms of quality (i.e., shape), and quantity (magnitude of deviation from symmetry). We investigated 72 species across all ten families of Odontoceti using two-dimensional geometric morphometrics. The average asymmetric shape was largely consistent across odontocetes - the rostral tip, maxillae, antorbital notches and braincase, as well as the suture crest between the frontal and interparietal bones were displaced to the right, whereas the nasal septum and premaxillae showed leftward shifts, in concert with an enlargement of the r...
Source: Zoology - August 26, 2023 Category: Zoology Authors: Ma íra Laeta Jo ão A Oliveira Salvatore Siciliano Olivier Lambert Frants H Jensen Anders Galatius Source Type: research
Cranial asymmetry in odontocetes: a facilitator of sonic exploration?
In this study, we investigated how cranial asymmetry varies across odontocete species both in terms of quality (i.e., shape), and quantity (magnitude of deviation from symmetry). We investigated 72 species across all ten families of Odontoceti using two-dimensional geometric morphometrics. The average asymmetric shape was largely consistent across odontocetes - the rostral tip, maxillae, antorbital notches and braincase, as well as the suture crest between the frontal and interparietal bones were displaced to the right, whereas the nasal septum and premaxillae showed leftward shifts, in concert with an enlargement of the r...
Source: Zoology - August 26, 2023 Category: Zoology Authors: Ma íra Laeta Jo ão A Oliveira Salvatore Siciliano Olivier Lambert Frants H Jensen Anders Galatius Source Type: research
Protective Geometry and Reproductive Anatomy as Candidate Determinants of Clutch Size Variation in Pentatomid Bugs
The American Naturalist, Ahead of Print. (Source: The American Naturalist)
Source: The American Naturalist - August 25, 2023 Category: Zoology Authors: Paul K. Abram Eric Guerra-Grenier Jacques Brodeur Clarissa Capko Michely Ferreira Santos Aquino Elizabeth H. Beers Maria Carolina Blassioli-Moraes Miguel Borges M. Fernanda Cingolani Antonino Cusumano Patrick De Clercq Celina A. Fernandez Tara D. Gariepy Source Type: research
Mutation and Selection Induce Correlations between Selection Coefficients and Mutation Rates
The American Naturalist, Ahead of Print. (Source: The American Naturalist)
Source: The American Naturalist - August 25, 2023 Category: Zoology Authors: Bryan L. Gitschlag Alejandro V. Cano Joshua L. Payne David M. McCandlish Arlin Stoltzfus Source Type: research
The Past Contribution and Future Fate of Genetic Variants under Climate Change in an Island Population of Musa itinerans
The American Naturalist, Ahead of Print. (Source: The American Naturalist)
Source: The American Naturalist - August 24, 2023 Category: Zoology Authors: Ya-Ping Lin Cheng-Yueh Lu Cheng-Ruei Lee Source Type: research
Taxonomic revision of the sexually dimorphic flies of the Neotropical genus Euepalpus Townsend, 1908 (Diptera: Tachinidae), with notes on sexual patches in Tachinini
Canadian Journal of Zoology, Ahead of Print. Euepalpus Townsend, 1908 is a small Neotropical genus of bristle flies (Diptera: Tachinidae: Tachinini), which includes two valid species whose taxonomy is unclear, mainly because males and females are sexually dimorphic. Males exhibit a pair of sexual patches on the dorsal surface of abdominal tergite 5, an unusual feature in Tachinidae. Here, the genus is revised, including a key to species and detailed descriptions and illustrations of the type material and males and females of each species. The male and female terminalia of Euepalpus species are described for the first time....
Source: Canadian Journal of Zoology - August 24, 2023 Category: Zoology Authors: Filipe Macedo Gudin Source Type: research
Five Decades of Data Yield No Support for Adaptive Biasing of Offspring Sex Ratio in Wild Baboons (Papio cynocephalus)
The American Naturalist, Ahead of Print. (Source: The American Naturalist)
Source: The American Naturalist - August 24, 2023 Category: Zoology Authors: Matthew N. Zipple Elizabeth A. Archie Jenny Tung Raphael S. Mututua J. Kinyua Warutere I. Long ’ida Siodi Jeanne Altmann Susan C. Alberts Source Type: research
