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Large-Scale Exogenous Forcing of Long-Term Pacific Salmon Production and Ecosystem Interactions in Western North America
(2008-09-27)
Pacific salmon (Oncorhynchus spp.) production strongly influences the ecosystems, cultures and economies of the Northeast Pacific. Historical variability in population sizes is complex, reflecting natural and human drivers. ...
Apoptosis and Aging in Drosophila
(2008-10-27)
Several genes involved in the regulation of apoptosis can influence longevity. Although observations in several different systems imply that apoptosis and aging are closely linked, the relationship between the two remains ...
Molecular cloning and characterization of the allatostatin receptor in the cockroach Diploptera punctata
(2008-04-24)
Allatostatins (ASTs) are neuropeptides that inhibit the biosynthesis and release of juvenile hormone from the corpora allata (CA) of various insects including the cockroach Diploptera punctata. We hypothesized that a similar ...
An investigation of the relationship between levels of apoptosis during aging and longetivity
(2008-08-14)
In multicellular organisms, apoptosis plays an important role in maintaining cellular homeostasis and removing damaged cells that present a threat to the integrity of the organism. Several lines of evidence suggest that ...
Carry-over effects in American redstarts: Implications for sexual selection and behaviour
(2008-09-23)
Migratory birds spend most of the year on the over-wintering grounds or traveling between breeding and wintering areas, but research has focused on the relatively short breeding period. As a consequence, we have only a ...
The Role of Invasive Bythotrephes longimanus in Lake Food Webs
(2008-01-15)
Bythotrephes longimanus, a predatory exotic cladoceran, has spread rapidly to numerous lakes through the Laurentian Great Lakes region of Ontario and North America. Post-invaded lakes are known to have reduced zooplankton ...
Co-immunoprecipitation analysis of the phosphoenolpyruvate carboxylase interactome of developing castor oil seeds
(2008-01-09)
Co-immunoprecipitation (co-IP) followed by proteomic analysis was employed to examine the phosphoenolpyruvate carboxylase (PEPC) interactome of developing castor oil seed (COS) endosperm. Earlier studies suggested that ...
Assessing Thule Inuit impacts on High Arctic lakes and ponds : a paleolimnological approach
(2008-01-03)
Until recently it has been widely believed that significant anthropogenic influences on the environment began in Canada following the onset of European colonization. However, our paleolimnological data indicate that ...
Developmental, but not activational, roles for estradiol and its receptor in paternal and sexual behaviour of Phodopus campbelli males
(2008-09-17)
The neuroendocrine basis of paternal behaviour is hypothesised to be homologous to that of maternal behaviour, with the expression of paternal behaviour resulting from the activation of estrogen-sensitive pathways in the ...
Black-Capped Chickadee Dawn Chorus Singing Behaviour: Evidence for Communication Networks
(2008-09-18)
There has been a recent paradigm shift in the study of animal communication from
examining interactions as dyads to considering interactions as occurring in a
communication network. The dawn chorus of songbirds, a striking ...