Results 91 to 100 of about 17,201 (206)

Characterization of nAChRs in Nematostella vectensis supports neuronal and non-neuronal roles in the cnidarian–bilaterian common ancestor

EvoDevo, 2019
Background Nicotinic and muscarinic acetylcholine receptors likely evolved in the cnidarian–bilaterian common ancestor. Both receptor families are best known for their role at chemical synapses in bilaterian animals, but they also have described roles as
Dylan Z. Faltine-Gonzalez, Michael J. Layden   +1 more
doaj   +1 more source

The evolution and comparative neurobiology of endocannabinoid signalling [PDF]

, 2012
CB(1)- and CB(2)-type cannabinoid receptors mediate effects of the endocannabinoids 2-arachidonoylglycerol (2-AG) and anandamide in mammals. In canonical endocannabinoid-mediated synaptic plasticity, 2-AG is generated postsynaptically by diacylglycerol ...
Devane W. A., Maurice R. Elphick, Montell C., Soderstrom K., Soderstrom K.   +4 more
core   +1 more source

The Seasonal Rhythms of Coastal eDNA: Insights Into Biodiversity and Regional Detection Patterns

Environmental DNA, Volume 8, Issue 1, January–February 2026.
Seasonal variation affects environmental DNA (eDNA) detection, yet its influence on species monitoring remains underexplored. This study examines eDNA detection windows across taxa, primers, and regions, finding that most species have short detection periods (1–2 months) that vary with taxonomy and primer choice. These results underscore the importance
Melissa K. Morrison, Kimberly Howland, Erin K. Grey, Timothy J. Barrett, Claudio DiBacco, Meghan C. McBride, Maelle Sevellec, Anaïs Lacoursière‐Roussel   +7 more
wiley   +1 more source

MECHANISMS OF IMMUNE RESPONSES IN CNIDARIANS

Acta Biológica Colombiana, 2015
The immune system maintains the integrity of the organisms through a complex network of molecules, cells, and tissues that recognize internal or external antigenic substances to neutralized and eliminate them.
Iván Darío Ocampo, Luis F. Cadavid Gutierrez   +1 more
doaj   +1 more source

Medusan Morphospace: Phylogenetic Constraints, Biomechanical Solutions, and Ecological Consequences [PDF]

, 2008
Medusae were the earliest animals to evolve muscle-powered swimming in the seas. Although medusae have achieved diverse and prominent ecological roles throughout the world\u27s oceans, we argue that the primitive organization of cnidarian muscle tissue ...
Ahlborn, Ahlborn, Alexander, Anderson, Arai, Arkett, Behrends, Biewener, Boero, Bolsterli, Bone, Bonner, Bouillon, Boulenger, Brusca, Chapman, Clifford, Colin, Colin, Colin, Colin, Colin, Collins, Collins, Costello, Costello, Costello, Costello, D'Ambra, Daan, Dabiri, Dabiri, Dabiri, Daniel, Daniel, Daniel, DeMont, DeMont, DeMont, Fancett, Feigenbaum, Ford, Ford, Gerritsen, Gladfelter, Gladfelter, Gladfelter, Greene, Hansson, Hansson, Hansson, Hyman, Jankowski, Kramp, Larson, Larson, Larson, Larson, Larson, Larson, Lindahl, Mackie, Mackie, Madin, Marques, Matsakis, Mayer, Mayr, McGhee, Megill, Mianzan, Mills, Mills, Moller, Moller, O'Dor, Olesen, Omori, Pauly, Polis, Prairie, Prothero, Pugh, Purcell, Purcell, Purcell, Purcell, Purcell, Purcell, Purcell, Purcell, Purcell, Purcell, Purcell, Raskoff, Raup, Roper, Satterlie, Satterlie, Schneider, Schuchert, Seipel, Shorten, Sotje, Sullivan, Titelman, Totton, Tregouboff, Uye, Valentine, Valentine, Van Iten, Vogel, Widmer, Youngbluth   +114 more
core   +2 more sources

Oceanographic heterogeneity facilitates gelatinous zooplankton niche space and diversity

Limnology and Oceanography Letters, Volume 11, Issue 1, January 2026.
Abstract Gelatinous zooplankton serve diverse ecological roles in shelf food webs—from grazers to predators. However, their spatial niches are poorly resolved, especially at detailed taxonomic levels, due to conventional techniques that are unable to measure distributions at fine spatial scales.
Adam T. Greer, Luciano M. Chiaverano
wiley   +1 more source

Biodiversity of Spongosorites coralliophaga (Stephens, 1915) on coral rubble at two contrasting cold-water coral reef settings [PDF]

, 2015
The authors would like to thank Bill Richardson (Master), the crew of the RRS James Cook, Will Handley and the Holland-I ROV team. We also thank all the specialists in taxonomy that provided important help with identification of species: Professor Paul ...
Henry, Lea-Anne, Kazanidis, Georgios, Roberts, J. Murray, Witte, Ursula F. M.   +3 more
core   +1 more source

Cnidarian Nerve Nets and Neuromuscular Efficiency [PDF]

Integrative and Comparative Biology, 2015
Cnidarians are considered "nerve net animals" even though their nervous systems include various forms of condensation and centralization. Yet, their broad, two-dimensional muscle sheets are innervated by diffuse nerve nets. Do the motor nerve nets represent a primitive organization of multicellular nervous systems, do they represent a consequence of ...
openaire   +2 more sources

Palaeoscolecids from the early Cambrian Guanshan biota, Yunnan Province, China

Papers in Palaeontology, Volume 12, Issue 1, January/February 2026.
Abstract Palaeoscolecidomorphs (Palaeoscolecida and Cricocosmiidae) are widespread early Palaeozoic worms crucial to understanding the early evolution of Ecdysozoa. They are well known from the early–middle Cambrian of the Yangtze Platform of South China, but research has disproportionately focused on the well‐known Cambrian Stage 3 Chengjiang biota of
Xiaomei Shi, Richard J. Howard, Guangxu Zhang, Xiaoya Ma   +3 more
wiley   +1 more source

Functional Characteristics of Nematocysts Found on the Scyphomedusa Cyanea Capillata [PDF]

, 2007
Although prey capture by cnidarians is mediated through nematocysts, their influence on prey selection by cnidarians remains poorly documented. The difficulty in visualizing nematocyst–prey interactions remains the chief obstacle to understanding how the
Colin, Sean, Costello, John H.
core   +1 more source