Results 21 to 30 of about 173,757 (217)

Risk from cattle trampling to nests of an endangered passerine evaluated using artificial nest experiments and simulations

Avian Conservation and Ecology, 2016
Grasslands are often grazed by cattle and many grassland birds nest on the ground, potentially exposing nests to trampling. We tested for trampling risk introduced by cattle to nests of endangered Florida Grasshopper Sparrows (Ammodramus savannarum ...
Brian W. Rolek, Gregory Schrott, D. Zak. Poulton, Reed Bowman   +3 more
doaj   +1 more source

Are arrival date and body mass after spring migration influenced by large-scale environmental factors in a migratory seabird?

Frontiers in Ecology and Evolution, 2015
Changes in the timing of migratory events have been observed recently in many migratory species, most likely in response to climatic change. In the common tern Sterna hirundo we examined such changes in spring arrival date and body mass based on a 19 ...
K. Lesley eSzostek, Sandra eBouwhuis, Peter H. Becker   +2 more
doaj   +1 more source

Bridging the gap: a genetically validated avian chorioallantoic membrane platform for investigation of spontaneous circulating tumor cells

Molecular Oncology, EarlyView.
We established the avian chorioallantoic membrane (CAM) assay as a scalable in vivo model for studying circulating tumor cells (CTCs). Human gastrointestinal tumors spontaneously released genetically validated CTCs that were detected across multiple platforms, demonstrating that the CAM model provides an accessible tool for investigating early cancer ...
Dennis Roth, Rui P. L. Neves, Julia Geheb, Christian Ballmeyer, Nathalie Gaßmann, Kiki C. Andree, Monica Sudarsanam, Christiane Driemel, Celine Örencik, Andrè Franken, Eslam Elmaghraby, Sven H. Loosen, Roderburg Christoph, Sebastian Schoelch, Hans Neubauer, Wolfram T. Knoefel, Nikolas H. Stoecklein, Georg Fluegen   +17 more
wiley   +1 more source

To cross or not to cross – thrushes at the German North Sea coast adapt flight and routing to wind conditions in autumn

Movement Ecology, 2019
Background Although many aspects of passerine migration are genetically determined, routing appears to be flexibly adjusted to the conditions experienced on each individual journey.
Vera Brust, Bianca Michalik, Ommo Hüppop   +2 more
doaj   +1 more source

Avidin is evolutionarily conserved in fish but dispensable for development and resistance against Streptococcus agalactiae in zebrafish

FEBS Open Bio, EarlyView.
The presence of biotin‐binding avidin proteins in fish and their biological significance are poorly characterized. We cataloged fish avidins and demonstrate that they are widely present and evolutionarily conserved. We created avd knockout zebrafish and show that zebavidin is dispensable for development and that resistance of avd knockout embryos in ...
Anni K. Saralahti, Markus J. T. Ojanen, Mataleena Parikka, Otto Kauko, Mika Rämet, Vesa P. Hytönen   +5 more
wiley   +1 more source

Adult Sex Ratio as a Demographic Feedback Linking Mating Systems, Parental Care, and Evolution

Advanced Science, EarlyView.
Breeding systems are some of the most diverse social behavior, and our team is investigation the evolutionary causes of this diversity. This review summarises our research carried out at the University of Bath. We argue that demographic components of wild populations, especially the adult sex ratio, plays a key role driving breeding system variation ...
Tamás Székely, Oscar G. Miranda
wiley   +1 more source

Toward Cell‐Specific Molecular MRI: Modulating Chemical Exchange Saturation Transfer Contrast With Manganese

Angewandte Chemie, EarlyView.
Manganese‐modulated chemical exchange saturation transfer (CEST) MRI, Manga CEST, leverages intracellular Mn2+ uptake to selectively perturb CEST contrast. Comparing Z‐spectra before and after Mn reveals compartment‐specific contributions. In vivo, neuron‐enriched Mn accumulation induces frequency‐dependent attenuation (3–4 ppm), enabling cell‐weighted
Eleonora Cavallari, Valeria Bitonto, Morgana Giachello, Angelo Bifone   +3 more
wiley   +2 more sources

CRISPR/Cas9-based programmable genome editing in chickens: concepts, applications and regulatory issues

Frontiers in Genome Editing
The advent of genetics, molecular biology, and genome sequencing has rapidly accelerated the development of elite genetic lines across various species, including poultry.
Gautham Kolluri, Adnan Naim, Shiva Kumar Kurva, Jagbir Singh Tyagi, Mohd. Matin Ansari, Simmi Tomar, Ashok Kumar Tiwari, Laxmi Chouhan   +7 more
doaj   +1 more source

SALT TOXICOSIS IN POULTS - A CLINICAL REPORT [PDF]

Journal of Veterinary and Animal Sciences, 2003
Sodium (Na+) is the toxic ion in salt toxicosis of domestic fowls. Sodium chloride (common salt) is generally thought of as providing the majority of Na+ found in the diet. However, other sources of sodium such as sodium bicarbonate, can also contribute
K. Shoba, A. Srithar, N.D.J. Chandran
doaj  

Engineering Approaches to Modify Immunomodulatory Functions of Mesenchymal Stromal Cells (MSCs): Tissue Regeneration and Clinical Application

Advanced Science, EarlyView.
Mesenchymal stromal cells (MSCs) show promise for treating immune‐related disorders through immunomodulation and tissue regeneration. This review gives a brief overview of current clinical approval of MSC therapies. It also discussed how bioengineering, including genetic modification, biomaterial delivery, extracellular vesicles, and iPSC‐derived MSCs,
Sichen Yang, Kejia Li, Ning Wang, Zhen Li, Zhiyong Zhang, Rocky S. Tuan, Yangzi Jiang   +6 more
wiley   +1 more source