Results 121 to 130 of about 223,330 (313)
THE PERIODICITY OF FRESHWATER ALGAE
American Journal of Botany, 1916 The normal life of a freshwater alga such as a Spirogyra consists of a period of germination of spores, a period of growth and development, and a period of sexual or asexual reproduction, commonly followed by a period of dormancy. An Oedogonium has in addition to these periods one or more phases during the vegetative period when zoospores are produced.
openaire +2 more sources
Partners or passengers? Revisiting the association between diatoms and aquatic animals
Biological Reviews, EarlyView.ABSTRACT Numerous studies have revealed the importance of research on the communities capable of colonizing animal surfaces (epibionts) and the animals on which they live (basibionts). Very few studies have considered epizoic diatoms, and there are gaps and biases in our knowledge, including the choice of basibionts, the methods used, and the habitats ...
Gianluca Vacca +2 more
wiley +1 more source
Blue-green algae questions and answers for water systems operators [PDF]
, 2010 This archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Title from PDF caption (viewed on Aug. 12, 2010)"DHS HARMFUL
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Review of the fauna associated with wild and farmed mussels and oysters in the Mediterranean
Biological Reviews, EarlyView.ABSTRACT Mussels and oysters are important ecosystem engineers which modify the physical and chemical characteristics of the environment and create habitats that support highly diverse associated communities. In the Mediterranean Sea, the native Mediterranean mussel Mytilus galloprovincialis and the European flat oyster Ostrea edulis, together the ...
Barbara Mikac +5 more
wiley +1 more source
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 +1 more
wiley +1 more source
Triassic dasycladalean algae from the Dolomites (Italy): stratigraphic assessment. [PDF]
, 2003 Triassic dasycldalean algae from the Dolomites (Northern ...
BASSI, Davide, FUGAGNOLI A.
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A Systemic Model for Understanding Business Interactions With Biodiversity and Ecosystems
Business Strategy and the Environment, EarlyView.ABSTRACT Biodiversity loss and ecosystem degradation represent critical threats to human well‐being and economic resilience, challenging businesses to understand and manage their interdependence with natural systems. This study develops a systemic framework—the BioModel—that elucidates the reciprocal relationship between businesses, biodiversity, and ...
Lino Cinquini +2 more
wiley +1 more source
The annual cycle of growth and reproduction of planktonic blue-green algae in the Salopian meres [PDF]
, 1977 PhDThe physical and, chemical factors which affect sporulation, and the growth and survival of vegetative populations of blue-green algae were examined in two eutrophic kataglacial lakes of the Ellesmere (North Salop) group of meres.
Rother, Joachim August
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Too Much, Too Fast: Why Ecological Systems May Be More Vulnerable to Excess Than to Scarcity
The Bulletin of the Ecological Society of America, EarlyView.
Natalie Avneri Rosen
wiley +1 more source