Results 41 to 50 of about 1,679 (178)

Evidence for adaptive explanations of semelparity in animals

Biological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher, Roberto Salguero‐Gómez   +1 more
wiley   +1 more source

Interplanetary frontiers: terraforming from an invasion science perspective

Oikos, EarlyView.
The pursuit of a multi‐planetary existence represents one of humanity's greatest frontiers. If applied justly, it offers an opportunity to extend its civilization's lifespan amid escalating sustainability crises on Earth. One approach increasingly gaining traction is terraforming, a hitherto theoretical ecological and evolutionary experiment revolving ...
Teun Everts, Ronaldo Sousa, Phillip J. Haubrock   +2 more
wiley   +1 more source

Extremely high abundances of Prasiola crispa-associated micrometazoans in East Antarctica

Polar Research, 2022
To elucidate poorly known aspects of the microscopic metazoan distribution in ice-free parts of the Antarctic, we examined samples of the multicellular terrestrial alga Prasiola crispa, collected over the last decade in different parts of continental ...
Dzmitry A. Lukashanets, Yury H. Hihiniak, Vladislav Y. Miamin   +2 more
doaj   +1 more source

Compromised DNA replication in gut cells underlies sensitivity to genotoxic stress in the tardigrade Hypsibius exemplaris

The FEBS Journal, EarlyView.
DNA damage in the tardigrade Hypsibius exemplaris elicits distinct cellular outcomes depending on replication status. While non‐replicating cells tolerate genotoxic stress, constitutively replicating cells undergo irreversible replication failure upon DNA damage, leading to loss of tissue homeostasis, fat depletion, sterility, and organismal death ...
Gonzalo Quiroga‐Artigas, Pauline Fontanié, Benjamin Lacroix, Maria Dolores Molina, María Moriel‐Carretero   +4 more
wiley   +1 more source

Tardigrade indexing approach on exoplanets [PDF]

Life Sciences in Space Research, 2018
Finding life on other worlds is a fascinating area of astrobiology and planetary sciences. Presently, over 3800 exoplanets, representing a very wide range of physical and chemical environments, are known. Scientists are not only looking for traces of life outside Earth, but they are also trying to find out which of Earth's known organisms (ex ...
Madhu Kashyap, Jagadeesh, Milena, Roszkowska, Łukasz, Kaczmarek   +2 more
openaire   +2 more sources

Tips and tricks how to culture water bears: simple protocols for culturing eutardigrades (Tardigrada) under laboratory conditions

The European Zoological Journal, 2021
Tardigrades are microinvertebrates inhabiting almost all aquatic and terrestrial ecosystems throughout the world. They are known for their ability to enter into cryptobiosis and to survive extreme environmental conditions (e.g.
M. Roszkowska, D. Wojciechowska, H. Kmita, S. Cerbin, M. K. Dziuba, E. Fiałkowska, R. Sobkowiak, W. Szydło, Ł. Kaczmarek   +8 more
doaj   +1 more source

Understanding marine biodiversity patterns and drivers: The fall of Icarus

Marine Ecology, EarlyView.
Abstract Biodiversity patterns are fundamental in our understanding of the distribution of life, ecosystem function, and conservation. In this concept analysis, A survey of the existing knowledge on marine biodiversity patterns and drivers across latitudes, longitudes, and depths indicates that none of the postulated patterns represent a rule.
Roberto Danovaro
wiley   +1 more source

The genus Milnesium (Eutardigrada, Apochela, Milnesiidae) in Argentina: description of three new species and key to the species of South America

European Journal of Taxonomy, 2022
A revision of microscope slides deposited between 2014 and 2017 in the collection of Rocha and Doma (National University of La Pampa, Argentina) revealed three new species of the genus Milnesium Doyère, 1840: M. pelufforum sp. nov., M. irenae sp.
Alejandra M. Rocha, Andrea X. González-Reyes, Belén Ostertag, Oscar Lisi   +3 more
doaj   +1 more source

Restoration ecology in conflict along the Colorado front range

Restoration Ecology, EarlyView.
Abstract Introduction Cheatgrass (Bromus tectorum) is a challenge to restoration in western North America. It attracts the attention of academic and government research scientists, weed managers, and chemical companies. Attempts to control it cause conflicts among these groups.
G. Robert Brakenridge, Tim R. Seastedt
wiley   +1 more source

Chasing (macro)elements in microinvertebrates: A new methodological approach for quantitative and qualitative analyses of phosphorus by PIXE (Particle‐Induced X‐Ray Emission) applied to glacier tardigrades

Methods in Ecology and Evolution
Microinvertebrates in harsh environments often occupy the highest trophic levels and directly influence the turnover of macroelements. However, the investigation of their body elemental composition is complicated due to their low dry weight or sample ...
Tereza Novotná Jaroměřská, Vladimír Havránek, David Novotný, Krzysztof Zawierucha, Oleksandr Romanenko, Jakub Štenc, Lenka Vondrovicová, Marie Fayadová, Jakub Trubač   +8 more
doaj   +1 more source