Distribution of the genus Boeckella (Crustacea, Copepoda, Calanoida, Centropagidae) at high latitudes in South America and the main Antarctic biogeographic regions [PDF]
ZooKeys, 2019 Copepods are present in numerous aquatic environments, playing key roles in food webs, and are thought to be useful indicators of environmental change. Boeckella is a calanoid copepod genus distributed mainly in the Southern Hemisphere, with 14 species ...
Claudia S. Maturana +4 more
doaj +4 more sources
Reversible intracellular acidification and depletion of NTPs provide a potential physiological origin for centuries of dormancy in an Antarctic freshwater copepod [PDF]
Scientific Reports, 2023 A great diversity of crustacean zooplankton found in inland and coastal waters produce embryos that settle into bottom sediments to form an egg bank. Embryos from these banks can remain dormant for centuries, creating a reservoir of genetic diversity.
Katherine A. Reed +4 more
doaj +2 more sources
Emerging biological archives can reveal ecological and climatic change in Antarctica. [PDF]
Glob Chang Biol, 2022 Antarctic and Southern Ocean biological archives such as extant moss beds and peat profiles, biological proxies in lake and marine sediments, vertebrate animal colonies, and extant terrestrial and benthic marine invertebrates, record the nature and rate of past ecological change, paleoenvironmental drivers of that change, and constrain ecosystem and ...
Strugnell JM +7 more
europepmc +2 more sources
Assessment of the cyst wall and surface microbiota in dormant embryos of the Antarctic calanoid copepod, Boeckella poppei. [PDF]
Environ Microbiol RepA diverse microbiome colonizes the surface of dormant copepod embryos, which can survive for ~200 years in lake sediments. During dormancy, the outer two layers of a five‐layered cyst wall break apart, while the third layer remains undamaged, despite the presence of microbial species with chitinase genes.
Arrington HB, Lee SG, Lee JH, Covi JA.
europepmc +2 more sources
Top-down control by an aquatic invertebrate predator increases with temperature but does not depend on individual behavioral type. [PDF]
Ecol Evol, 2018 Potential interactive effects of warming and intraspecific behavioral variation on food web processes are largely unexplored. Using a microcosm experiment with an aquatic invertebrate predator, we found effects of temperature but not individual behavioral type on top‐down control.
Ingram T, Burns ZD.
europepmc +2 more sources
Frontiers in Ecology and Evolution, 2022 Two main hypotheses have been proposed to explain the contemporary distribution of Antarctic terrestrial biota. We assess whether the current distribution of maritime Antarctic populations of the freshwater copepod Boeckella poppei is the result of (1) a
Peter Convey +2 more
exaly +3 more sources
Sexually-manifested variations in pigmentation of Boeckella poppei (Copepoda, Calanoida) from Livingston Island (Maritime Antarctica) [PDF]
BioRisk, 2022 Antarctic environments are exposed to high levels of ultraviolet radiation (UVR) that are often detrimental to their biota. Recent studies suggest that the genus Boeckella (Copepoda, Calanoida) has a high level of plasticity in terms of its reaction to ...
Ivan Pandourski +2 more
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Український антарктичний журнал, 2023 The copepod Boeckella poppei (Mrazek, 1901) (Calanoida: Centropagidae) is one of the Maritime Antarctic’s most common freshwater zooplankton species. It was first discovered in 1961–1962 on Signy Island (South Orkney Islands).
M. Nabokin +9 more
doaj +1 more source
Diversity and Distributions, Volume 27, Issue 12, Page 2330-2343, December 2021., 2021 Abstract Aim We investigated evolutionary relationships and biogeographical patterns within the genus Boeckella to evaluate (1) whether its current widespread distribution in the Southern Hemisphere is due to recent long‐distance dispersal or long‐term diversification; and (2) the age and origin of sub‐Antarctic and Antarctic Boeckella species, with ...
Claudia S. Maturana +12 more
wiley +1 more source
Population features of Boeckella poppei in Lake Wujka, King George Island
Український антарктичний журнал, 2021 The maritime Antarctic is one of the most interesting regions on planet where climate change can be observed to impact all components of its poor flora. Boeckella poppei is common in the maritime and continental Antarctic species of the copepod.
V. Trokhymets +2 more
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