Results 1 to 10 of about 22,102 (258)

Sea star wasting disease demography and etiology in the brooding sea star Leptasterias spp. [PDF]

open access: yesPLoS ONE, 2019
Sea star wasting disease (SSWD) describes a suite of disease signs believed to have led to catastrophic die-offs in many asteroid species, beginning in 2013. While most studies have focused on large, easily visible sea stars with widely-dispersing larvae,
Noah Jaffe   +3 more
doaj   +4 more sources

Regeneration of the larval sea star nervous system by wounding induced respecification to the Sox2 lineage [PDF]

open access: yeseLife, 2022
The ability to restore lost body parts following traumatic injury is a fascinating area of biology that challenges current understanding of the ontogeny of differentiation.
Minyan Zheng   +2 more
doaj   +2 more sources

Two decades of change in sea star abundance at a subtidal site in Puget Sound, Washington. [PDF]

open access: yesPLoS ONE, 2023
Long-term datasets can reveal otherwise undetectable ecological trends, illuminating the historical context of contemporary ecosystem states. We used two decades (1997-2019) of scientific trawling data from a subtidal, benthic site in Puget Sound ...
Helen R Casendino   +4 more
doaj   +2 more sources

Lineage tracing shows that cell size asymmetries predict the dorsoventral axis in the sea star embryo [PDF]

open access: yesBMC Biology, 2022
Background Cell size asymmetries are often linked to cell fate decisions, due to cell volumes and cell fate determinants being unequally partitioned during asymmetric cell divisions.
Vanessa Barone   +2 more
doaj   +2 more sources

Microbial dysbiosis precedes signs of sea star wasting disease in wild populations of Pycnopodia helianthoides

open access: yesFrontiers in Marine Science, 2023
Sea star wasting (SSW) disease, a massive and ongoing epidemic with unknown cause(s), has led to the rapid death and decimation of sea star populations with cascading ecological consequences.
Andrew R. McCracken   +11 more
doaj   +3 more sources

Sea star inspired crawling and bouncing. [PDF]

open access: yesJ R Soc Interface, 2020
The oral surface of sea stars is lined with arrays of tube feet that enable them to achieve highly controlled locomotion on various terrains. The activity of the tube feet is orchestrated by a nervous system that is distributed throughout the body without a central brain. How such a distributed nervous system produces a coordinated locomotion is yet to
Heydari S   +4 more
europepmc   +7 more sources

Intra- and Interspecific Foraging and Feeding Interactions in Three Sea Stars and a Gastropod from the Deep Sea

open access: yesBiology, 2023
Competitive interactions come in a variety of forms and may be modulated by the size and number of individuals involved, and/or the resources available.
Brittney Stuckless   +3 more
doaj   +1 more source

Impact of the extinct megaherbivore Steller's sea cow (Hydrodamalis gigas) on kelp forest resilience

open access: yesFrontiers in Ecology and Evolution, 2022
Giant kelp forests off the west coast of North America are maintained primarily by sea otter (Enhydra lutris) and sunflower sea star (Pycnopodia helianthoides) predation of sea urchins.
Peter D. Roopnarine   +4 more
doaj   +1 more source

RNA expression and disease tolerance are associated with a “keystone mutation” in the ochre sea star Pisaster ochraceus [PDF]

open access: yesPeerJ, 2017
An overdominant mutation in an intron of the elongation factor 1-α (EF1A) gene in the sea star Pisaster ochraceus has shown itself to mediate tolerance to “sea star wasting disease”, a pandemic that has significantly reduced sea star populations on the ...
V. Katelyn Chandler, John P. Wares
doaj   +2 more sources

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