Results 91 to 100 of about 17,384 (223)
Ecology and Evolution, Volume 16, Issue 4, April 2026.We reintroduced the native ciliate Kerona pediculus into long‐term symbiont‐free Hydra oligactis lines differing in tumor affliction. Unexpectedly, spontaneous tumors arose at high frequency independently of ciliate acquisition, fundamentally reshaping the experimental framework and enabling comparisons of how symbiont reintroduction affects hosts with
Nikita Stepanskyy +6 more
wiley +1 more source
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 +1 more
doaj +1 more source
Limnology and Oceanography, Volume 71, Issue 4, April 2026.Abstract Hydromedusae are often overlooked in pelagic trophic ecology compared to large scyphozoans. We investigated the diet, prey selectivity, ingestion rates, digestion times, and predation impacts of the native Liriope tetraphylla and non‐indigenous species Cnidostoma fallax and Moerisia inkermanica in a subtropical estuary of the southwestern ...
Guilherme M. von Montfort +4 more
wiley +1 more source
The early expansion and evolutionary dynamics of POU class genes. [PDF]
, 2014 The POU genes represent a diverse class of animal-specific transcription factors that play important roles in neurogenesis, pluripotency, and cell-type specification. Although previous attempts have been made to reconstruct the evolution of the POU class,
Gates, Ruth D +2 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
From barrier to gateway: Climate‐facilitated expansion of thaliaceans in the Arctic Ocean
Limnology and Oceanography, Volume 71, Issue 4, April 2026.Abstract Thaliaceans (doliolids, pyrosomes, salps) play fundamental roles in global carbon cycling and pelagic food webs through high filtration rates and rapid reproduction. Despite their prevalence, they are virtually absent from the Arctic Ocean. This paper explores the ecological, physiological, and historical factors that may have contributed to ...
Florian Lüskow +4 more
wiley +1 more source
Diet composition of fish species from the southern continental shelf of Colombia [PDF]
, 2002 The diet composition of 30 fish species belonging to 16 families from the Pacific Coast of Colombia is described. Benthic crustaceans (37.5%) and bony fishes (23.7%, chiefly demersal) were the most important food items for the fish species analyzed. Data
Arcila, C.A.T., Lopez-Peralta, R.H.
core
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 +1 more
doaj +1 more source
Prey Resource Utilization by Coexistent Hydromedusae from Friday Harbor, Washington, USA [PDF]
, 2002 Prey selection patterns were quantified for a sympatric group of hydromedusae from Friday Harbor, WA. Selection patterns varied between species, but were largely replicable between sample dates and resembled dietary patterns found in similar studies from
Colin, Sean, Costello, John H.
core +1 more source
Biodiversity studies in the Ningaloo Reef lagoon [PDF]
, 2009 As part of the CSIRO Wealth from Oceans Flagship’s Ningaloo Collaboration Cluster program currently underway in Western Australia, this study aims to examine the habitats and biodiversity of lagoonal areas within Ningaloo Reef.
van Keulen, M.
core +1 more source