Results 31 to 40 of about 43,466 (285)

Fossil clam shells reveal unintended carbon cycling consequences of Colorado River management [PDF]

open access: yesRoyal Society Open Science, 2016
Water management that alters riverine ecosystem processes has strongly influenced deltas and the people who depend on them, but a full accounting of the trade-offs is still emerging.
Jansen A. Smith   +4 more
doaj   +1 more source

Amino acid racemization dating of marine shells: a mound of possibilities [PDF]

open access: yes, 2007
Shell middens are one of the most important and widespread indicators for human exploitation of marine resources and occupation of coastal environments. Establishing an accurate and reliable chronology for these deposits has fundamental implications for ...
Bailey, Geoffrey N.   +5 more
core   +4 more sources

Pomacea canaliculata Ampullar Proteome: A Nematode-Based Bio-Pesticide Induces Changes in Metabolic and Stress-Related Pathways

open access: yesBiology, 2021
Pomacea canaliculata is a freshwater gastropod known for being both a highly invasive species and one of the possible intermediate hosts of the mammalian parasite Angiostrongylus cantonensis.
Federica Boraldi   +4 more
doaj   +1 more source

Pliocene-Pleistocene marine cyclothems, Wanganui Basin, New Zealand: a lithostratigraphic framework [PDF]

open access: yes, 1995
The Rangitikei River valley between Mangaweka and Vinegar Hill and the surrounding Ohingaiti region in eastern Wanganui Basin contains a late Pliocene to early Pleistocene (c. 2.6-1.7 Ma), c.
Abbott S. T.   +13 more
core   +2 more sources

Eparchikon biblion V, 2: Is Thalassai the Same as Byssos? [PDF]

open access: yes, 2013
The article examines a kind of fabric described as ‘θάλασσαι’ in The Book of the Prefect (Τὸ ἐπαρχικὸν βιβλίον). The meaning of this term by both editors and commentators of the document has not been satisfactorily explained so far.
Jaroszyński, Adam, Kotłowska, Anna
core   +1 more source

The Diversity of Molluscs in Seagrass Ecosystem of Wondama Bay, West Papua, Indonesia

open access: yesIlmu Kelautan
Papua, Indonesia is located in the Coral Triangle and is home to many marine creatures. Some areas of Papua, however, remain underexplored, particularly in terms of the diversity of mollusc and their seagrass bed habitat.
Ludi Parwadani Aji   +2 more
doaj   +1 more source

On the heritability of geographic range sizes [PDF]

open access: yes, 2003
Within taxonomic groups, most species are restricted in their geographic range sizes, with only a few being widespread. The possibility that species-level selection on range sizes contributes to the characteristic form of such speciesrange size ...
Gaston, K.J., Webb, T.J.
core   +1 more source

Genetic considerations for mollusc production in aquaculture: current state of knowledge.

open access: yesFrontiers in Genetics, 2014
IIn 2012, world mollusk production in aquaculture reached a volume of 15,171,000 tons, representing 23% of total aquaculture production and positioning mollusks as the second most important category of aquaculture products (fishes are the first).
Marcela eAstorga
doaj   +1 more source

Multiple Twinning in Nacre and Aragonite

open access: yesAdvanced Functional Materials, EarlyView.
Electron backscatter diffraction map of a cluster of geologic aragonite, exhibiting single, double, and triple twins. The whole cluster is approximately 2 cm wide. Colors indicate crystal orientations, so that pixels where the a‐, b‐, and c‐axis is perpendicular to the image plane are green, red, and blue, respectively.
Connor A. Schmidt   +7 more
wiley   +1 more source

Norepinephrine and octopamine: linking stress and immune function across phyla [PDF]

open access: yesInvertebrate Survival Journal, 2008
In species from three widely divergent phyla (Arthropoda, Mollusca and Chordata) tyrosine derivatives (norepinephrine or octopamine) mediate a response to acute stress.
SA Adamo
doaj   +2 more sources

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