Direct and indirect effects of metal stress on physiology and life history variation in field populations of a lycosid spider

2011 ◽  
Vol 74 (6) ◽  
pp. 1489-1497 ◽  
Author(s):  
Debbie Eraly ◽  
Frederik Hendrickx ◽  
Thierry Backeljau ◽  
Lieven Bervoets ◽  
Luc Lens
Keyword(s):  
Life History ◽  
Indirect Effects ◽  
Metal Stress ◽  
Direct And Indirect Effects ◽  
Life History Variation

The direct and indirect effects of guppies: implications for life‐history evolution in Rivulus hartii

2010 ◽  
Vol 25 (1) ◽  
pp. 227-237 ◽  
Author(s):  
Matthew R. Walsh ◽  
Douglas F. Fraser ◽  
Ronald D. Bassar ◽  
David N. Reznick
Keyword(s):  
Life History ◽  
Indirect Effects ◽  
Life History Evolution ◽  
Direct And Indirect Effects ◽  
History Evolution

scholarly journals Direct and latent effects of ocean acidification on the transition of a sea urchin from planktonic larva to benthic juvenile

2021 ◽  
Author(s):  
Narimane Dorey ◽  
Emanuela Butera ◽  
Nadjejda Espinel-Velasco ◽  
Sam Dupont
Keyword(s):  
Life History ◽  
Ocean Acidification ◽  
Sea Urchin ◽  
Indirect Effects ◽  
Strongylocentrotus Droebachiensis ◽  
Energetic Cost ◽  
Continuous Exposure ◽  
Direct And Indirect Effects ◽  
Life History Stages ◽  
Latent Effects

Ongoing ocean acidification (OA) is expected to affect marine organisms and ecosystems. While sea urchins can survive a wide range of pH, this comes at a high energetic cost, and early life stages are particularly vulnerable. Information on how OA affects transitions between life-history stages is scarce. We evaluated the direct and indirect effects of pH (pHT 8.0, 7.6 and 7.2) on the development and transition between life-history stages of the sea urchin Strongylocentrotus droebachiensis, from fertilization to early juvenile. Continuous exposure to low pH negatively affected larval mortality and growth. At pH 7.2, formation of the rudiment (the primordial juvenile) was delayed by two days. Larvae raised at pH 8.0 and transferred to 7.2 after competency had mortality rates five to six times lower than those kept at 8.0, indicating that pH also has a direct effect on older, competent larvae. Latent effects were visible on the larvae raised at pH 7.6: they were more successful in settling (45%) and metamorphosing (30%) than larvae raised at 8.0 (17 and 1% respectively). These direct and indirect effects of OA on settlement and metamorphosis have important implications for population survival.

Direct and indirect effects of dynamic social impact

2005 ◽  
Author(s):  
Dana M. Binder ◽  
Martin J. Bourgeois ◽  
Christine M. Shea Adams
Keyword(s):  
Indirect Effects ◽  
Social Impact ◽  
Direct And Indirect Effects
Sign in / Sign up

Export Citation Format

Share Document