Results 71 to 80 of about 132,738 (254)

Pathogenic fungus in feral populations of the invasive North American bullfrog in Argentina [PDF]

, 2017
Nearly a third (32.4%) of the world?s amphibian species are either threatened with extinction or already extinct (1). The chytrid fungus Batrachochytrium dendrobatidis (Bd) (Chytridiomycetes: Ryzophydiales) (2) has been recognized as responsible for mass
Ghirardi, Romina, Levy, Michael G., Lopez, Javier Alejandro, Quiroga, Lorena Beatriz, Sanabria, Eduardo Alfredo   +4 more
core   +1 more source

Commentary: The missing sabertooth baculum—At what point might the absence of evidence reasonably be considered evidence of absence?

The Anatomical Record, Volume 308, Issue 11, Page 3053-3062, November 2025.
Abstract Most carnivorans and all modern felids have ossified bacula; however, no machairodont baculum has ever been identified. This is true despite the many fairly complete skeletons found around the world of several sabertooth taxa. Although the bacula of modern felids are much smaller than those of canoids (even the least weasel's baculum is longer
Adam Hartstone‐Rose
wiley   +1 more source

The Medullary Audio–Vocal Network in the Toad Bombina orientalis

Journal of Comparative Neurology, Volume 533, Issue 10, October 2025.
Hypothetical network of audio‐vocal integration of motor neurons (twin circles) and interneurons (circles) in the medulla oblongata of the toad. ABSTRACT Anurans are an established paradigm to study vocal mechanisms in vertebrates. Regarding the motor patterns, airborne vocalization of most evolutionarily old anurans (Archaeobatrachia) resembles ...
Stefan Huggenberger, Wolfgang Walkowiak
wiley   +1 more source

Overwintering Behavior of Adult Bullfrogs, Rana catesbeiana, in Northeastern Ohio [PDF]

, 1994
Author Institution: Department of Biology, The University of AkronMany species of ranid anurans overwinter in aquatic habitats such as streams, ponds, and lakes, but little is known about their behavior or location when submerged.
Orcutt, Scott, Stinner, Jerry, Zarlinga, Nicholas   +2 more
core  

Crosstalk between thyroid hormones and the central corticotropin‐releasing factor system in Atlantic salmon

Journal of Neuroendocrinology, Volume 37, Issue 9, September 2025.
The corticotropin‐releasing factor (CRF) system plays a key role in centrally regulating thyroid hormone (TH) synthesis in non‐mammalian vertebrates, but interactions between THs and the CRF system remain poorly understood in fish. Here, we report that THs directly affect transcription of several CRF system components across different hypophysiotropic ...
Brett M. Culbert, Emily Jenkins, Nicholas J. Bernier   +2 more
wiley   +1 more source

Flexibility within the middle ears of vertebrates [PDF]

, 2012
Introduction and aims: Tympanic middle ears have evolved multiple times independently among vertebrates, and share common features. We review flexibility within tympanic middle ears and consider its physiological and clinical implications.
Baird, Bell, Burda, Dahmann, Feenstra, Fleischer, Goode, Goode, Ingelstedt, Jørgensen, Kirikae, Kobrak, Larsen, Lenhardt, M J Mason, M R B Farr, Manley, Marquet, Mason, Mason, Mason, Mason, Mills, Narins, Nishihara, Pau, Rosowski, Schuknecht, Segall, Smith, Tideholm, Werner, Wever, Wever, Wever, Yamada, Özcan   +36 more
core   +1 more source

A Multiplex Real‐Time PCR for Qualitative Detection of Mutton, Pork, Chicken, and Duck in Processed Meat Products

Food Science &Nutrition, Volume 13, Issue 7, July 2025.
This study aimed to develop a multiplex real‐time PCR method for the qualitative detection of pork, chicken, and duck adulteration in mutton products. The method exhibited high specificity, accuracy, and sensitivity through method validation. To evaluate its applicability, we analyzed 35 commercial processed meat products, and the results confirmed the
Lijuan Chang, Chengping Fu, Mengxue Deng, Yuanhong Li   +3 more
wiley   +1 more source

Non‐Native Species in Aquaculture: Burgeoning Production and Environmental Sustainability Risks

Reviews in Aquaculture, Volume 17, Issue 3, June 2025.
ABSTRACT Rising global food demands and technological advancements have led to unprecedented growth in the aquaculture industry. This rapid expansion has facilitated the translocation of species beyond their native ranges. While farming non‐native species boosts global food supply, it also poses environmental and socio‐economic risks when escapees ...
Francisco J. Oficialdegui, Ismael Soto, Paride Balzani, Ross N. Cuthbert, Phillip J. Haubrock, Melina Kourantidou, Eléna Manfrini, Ali Serhan Tarkan, Irmak Kurtul, Rafael L. Macêdo, Camille L. Musseau, Koushik Roy, Antonín Kouba   +12 more
wiley   +1 more source

Premetamorphic Growth of Rana Catesbeiana in Southwestern Ohio [PDF]

, 1975
Author Institution: Department of Biology, Xavier ...
Hedeen, Stanley E.
core  

eDNA‐Based Detection of Invasive Crayfish and Crayfish Plague in Estonia

Environmental DNA, Volume 7, Issue 3, May–June 2025.
Our study explored the potential of integrating the eDNA approach into ongoing annual monitoring programs for invasive crayfish species and A. astaci. Crayfish eDNA was detected in 9 out of 14 water bodies where presence was confirmed by trapping, yielding 64% detection efficiency. eDNA from A.
Michael Oliewo Aluma, Katrin Kaldre, David A. Strand, Margo Hurt, Lilian Pukk   +4 more
wiley   +1 more source