Results 31 to 40 of about 1,470,106 (385)

Long-Term Stability in the Trophic Ecology of a Pelagic Forager Living in a Changing Marine Ecosystem

Frontiers in Marine Science, 2020
Natural or human-induced environmental changes can modify the structure of ecological communities and thus alter food web interactions. After the collapse of hake stocks (Merluccius hubbsi) provoked by fisheries over the Patagonian shelf in 1997 profound
Damián G. Vales, Luis Cardona, Rocío Loizaga, Néstor A. García, Enrique A. Crespo   +4 more
doaj   +1 more source

Spontaneous Tumors and Non-Neoplastic Proliferative Lesions in Pet Degus (Octodon degus)

Veterinary Sciences, 2020
In recent years, degus (Octodon degus), rodents native to South America, have been becoming increasingly popular as pet animals. Data about neoplastic diseases in this species are still sparse and mainly limited to single-case reports.
Tanja Švara, Mitja Gombač, Alessandro Poli, Jožko Račnik, Marko Zadravec   +4 more
doaj   +1 more source

MHC-linked and un-linked class I genes in the wallaby [PDF]

, 2009
Background: MHC class I antigens are encoded by a rapidly evolving gene family comprising classical and non-classical genes that are found in all vertebrates and involved in diverse immune functions.
Beck, S., Belov, K., Cheng, Y., Coggill, P., Deakin, J.E., Harrow, J., Hart, E., Siddle, H.V., Wong, E.S.W.   +8 more
core   +4 more sources

Nitric oxide synthases in mammals.

Biochemical Journal, 1994
Nitric oxide is an inorganic free radical gas, of formula *N=O (abbreviated as NO). The discovery in 1987/88 that vascular endothelial cells are able to synthesize NO from L-arginine as a transcellular signal [1-4] was initially received by most ...
Richard Graham Knowles, S. Moncada
semanticscholar   +1 more source

Canary Bornavirus (Orthobornavirus serini) Infections Are Associated with Clinical Symptoms in Common Canaries (Serinus canaria dom.)

Viruses, 2022
While parrot bornaviruses are accepted as the cause of proventricular dilatation disease (PDD) in psittacine birds, the pathogenic role of bornaviruses in common canaries is still unclear.
Monika Rinder, Noreen Baas, Elisabeth Hagen, Katrin Drasch, Rüdiger Korbel   +4 more
doaj   +1 more source

Ectoparasitic Arthropods Collected From Some Northern Ohio Mammals [PDF]

, 2017
Ectoparasitic arthropods were collected from some fur-bearing mammals in northern Ohio. Specimens representing seven mammalian species were examined and found to collectively harbor acarines, fleas, and biting lice.
Johnston, Scott A, Rockett, C. Lee
core   +3 more sources

Within-guild dietary discrimination from 3-D textural analysis of tooth microwear in insectivorous mammals [PDF]

, 2013
Resource exploitation and competition for food are important selective pressures in animal evolution. A number of recent investigations have focused on linkages between diversification, trophic morphology and diet in bats, partly because their roosting ...
Crumpton, Nicholas, Gill, Pamela G, Jones, Gareth, Purnell, Mark A, Rayfield, Emily J   +4 more
core   +2 more sources

Differences between the Filling Velocities of the Left and Right Heart Ventricle in Racing Pigeons (Columba livia F. Domestica) and the Influence of Anesthesia with Isoflurane

Veterinary Sciences, 2019
The ventricular filling velocities during diastole and the influence of isoflurane anesthesia on these blood flow velocities of the racing pigeon (n = 43) are evaluated by pulsed-wave (PW) Doppler sonography. Sonographic examination demonstrates an early
Marko Legler, Lajos Koy, Norbert Kummerfeld, Michael Fehr   +3 more
doaj   +1 more source

Building Babies - Chapter 16 [PDF]

, 2012
In contrast to birds, male mammals rarely help to raise the offspring. Of all mammals, only among rodents, carnivores, and primates, males are sometimes intensively engaged in providing infant care (Kleiman and Malcolm 1981).
A Fuentes, A Goldizen, A Gozalo, A Morcillo, A Paul, A Savage, AC Keddy Hector, AF Dixson, AF Dixson, AI Houston, AI Houston, AI Houston, AJ Bateman, AK Birnie, AM Hurtado, AW Goldizen, AW Goldizen, AW Goldizen, B Jantschke, BB Smuts, BC Sheldon, BC Trainor, BC Trainor, BS Hewlett, BS Hewlett, C Ross, C Schradin, C Schradin, C Welker, CK Wolovich, CK Wolovich, CK Wolovich, CM Anderson, CM Drea, CM Nievergelt, CR Pryce, CT Snowdon, DC Geary, DC Geary, DG Kleiman, DJ Gubernick, DK Brockmann, DM Fragaszy, DS Sherry, E Fernandez-Duque, E Fernandez-Duque, E Fernandez-Duque, E Fernandez-Duque, E Fernandez-Duque, E Fernandez-Duque, E Fernandez-Duque, E Fernandez-Duque, E Fernandez-Duque, E Fernandez-Duque, EC Price, EC Price, EC Price, EC Price, ED Starin, ED Starin, ER Patel, EW Heymann, F Marlowe, F Marlowe, FB Bercovitch, GA Parker, GG Achenbach, H Kokko, HG Erkert, HS Morland, J Allman, J Itani, J Mitani, J Moreno, JA Stallcup, JC Buchan, JC Mitani, JC Wingfield, JE Fite, JK Martin, K Hirschenhauser, KA Hoffman, KAI Nekaris, KG Anderson, KL Bales, KL Bales, KL Kramer, KL Wuensch, KM Kostan, LM Porter, LM Porter, LT Gettler, LT Gettler, M Huck, M Huck, M Huck, M Huck, M Rotundo, MA Norconk, ME Yamamoto, MF Small, MJ Wade, MJ Wade, MJE Charpentier, ML Bastian, ML Rafacz, N Nicolson, NG Solomon, P Löttker, PA Garber, PA Garber, PB Gray, PC Wright, PC Wright, PC Wright, PE Komers, PL Whitten, PM Kappeler, PM Kappeler, R Dawkins, R Härdling, R Palombit, RA Fisher, RIM Dunbar, RJ Hoage, RL Trivers, S Gursky, S Lappan, S Maynard Smith, S Perry, S Sánchez, S Tardif, SA Kingma, SB Hrdy, SD Tardif, SN Austad, SP Mendoza, SR Tecot, TE Ziegler, TE Ziegler, TE Ziegler, TE Ziegler, TG O’Brien, TH Clutton-Brock, TR Harris, U Reichard, W Goymann, W Leutenegger, W Wickler, WC McGrew, ZF Xiang   +150 more
core   +2 more sources

Detecting narwhal foraging behaviour from accelerometer and depth data using mixed-effects logistic regression

Animal Biotelemetry, 2023
Background Due to their Arctic habitat and elusive nature, little is known about the narwhal (Monodon monoceros) and its foraging behaviour. Understanding its ability to catch prey is essential for understanding its ecological role, but also to assess ...
Frederik H. Jensen, Outi M. Tervo, Mads Peter Heide-Jørgensen, Susanne Ditlevsen   +3 more
doaj   +1 more source