Early Life Histories, Ocean Currents, and the Population Genetics of Caribbean Reef Fishes

Evolution ◽  
1995 ◽  
Vol 49 (5) ◽  
pp. 897 ◽  
Author(s):  
Myra J. Shulman ◽  
Eldredge Bermingham
Keyword(s):  
Population Genetics ◽  
Early Life ◽  
Life Histories ◽  
Reef Fishes ◽  
Ocean Currents ◽  
Caribbean Reef

Spatially dynamic maternal control of migratory fish recruitment pulses triggered by shifting seasonal cues

2018 ◽  
Vol 69 (6) ◽  
pp. 942 ◽  
Author(s):  
Daisuke Goto ◽  
Martin J. Hamel ◽  
Mark A. Pegg ◽  
Jeremy J. Hammen ◽  
Matthew L. Rugg ◽  
...  
Keyword(s):  
Life History ◽  
Early Life ◽  
Life Histories ◽  
Egg Production ◽  
Local Density ◽  
Early Life History ◽  
Biophysical Model ◽  
Larval Stages ◽  
Predation Mortality ◽  
Stability And Resilience

Environmental regimes set the timing and location of early life-history events of migratory species with synchronised reproduction. However, modified habitats in human-dominated landscapes may amplify uncertainty in predicting recruitment pulses, impeding efforts to restore habitats invaluable to endemic species. The present study assessed how environmental and spawner influences modulate recruitment variability and persistence of the Missouri River shovelnose sturgeon (Scaphirhynchus platorynchus) under modified seasonal spawning and nursery habitat conditions. Using a spatially explicit individual-based biophysical model, spawning cycle, early life-history processes (dispersal, energetics and survival) and prey production were simulated under incrementally perturbed flow (from –10 to –30%) and temperature (+1 and +2°C) regimes over 50 years. Simulated flow reduction and warming synergistically contracted spring spawning habitats (by up to 51%) and periods (by 19%). Under these conditions, fewer mature females entered a reproductive cycle, and more females skipped spawning, reducing spawning biomass by 20–50%. Many spawners migrated further to avoid increasingly unfavourable habitats, intensifying local density dependence in larval stages and, in turn, increasing size-dependent predation mortality. Diminished egg production (by 20–97%) and weakened recruitment pulses (by 46–95%) ultimately reduced population size by 21–74%. These simulations illustrate that environmentally amplified maternal influences on early life histories can lower sturgeon population stability and resilience to ever-increasing perturbations.

scholarly journals Erratum to: Comparison of the early life histories of two Cynoglossus species in the inner estuary of Ariake Bay, Japan

2009 ◽  
Vol 56 (4) ◽  
pp. 372-372
Author(s):  
Yuta Yagi ◽  
Izumi Kinoshita ◽  
Shinji Fujita ◽  
Hiroshi Ueda ◽  
Daisuke Aoyoma
Keyword(s):  
Early Life ◽  
Life Histories ◽  
Ariake Bay

scholarly journals Comparing biodiversity databases: Greater Caribbean reef fishes as a case study

2020 ◽  
Vol 21 (6) ◽  
pp. 1195-1212 ◽  
Author(s):  
Iliana Chollett ◽  
D. Ross Robertson
Keyword(s):  
Reef Fishes ◽  
Caribbean Reef ◽  
Biodiversity Databases

Caribbean Reef Fishes

Copeia ◽  
1969 ◽  
Vol 1969 (1) ◽  
pp. 210
Author(s):  
Victor G. Springer ◽  
John E. Randall
Keyword(s):  
Reef Fishes ◽  
Caribbean Reef

scholarly journals The influence of weather conditions during gestation on life histories in a wild Arctic ungulate

2016 ◽  
Vol 283 (1841) ◽  
pp. 20161760 ◽  
Author(s):  
Mathieu Douhard ◽  
Leif Egil Loe ◽  
Audun Stien ◽  
Christophe Bonenfant ◽  
R. Justin Irvine ◽  
...  
Keyword(s):  
Life History ◽  
Reproductive Success ◽  
Environmental Conditions ◽  
Early Life ◽  
Life Histories ◽  
Weather Conditions ◽  
Later Life ◽  
Svalbard Reindeer ◽  
Long Term Study ◽  
Age Related

The internal predictive adaptive response (internal PAR) hypothesis predicts that individuals born in poor conditions should start to reproduce earlier if they are likely to have reduced performance in later life. However, whether this is the case remains unexplored in wild populations. Here, we use longitudinal data from a long-term study of Svalbard reindeer to examine age-related changes in adult female life-history responses to environmental conditions experienced in utero as indexed by rain-on-snow (ROS utero ). We show that females experiencing high ROS utero had reduced reproductive success only from 7 years of age, independent of early reproduction. These individuals were able to maintain the same annual reproductive success between 2 and 6 years as phenotypically superior conspecifics that experienced low ROS utero . Young females born after high ROS utero engage in reproductive events at lower body mass (about 2.5 kg less) than those born after low ROS utero . The mean fitness of females that experienced poor environmental conditions in early life was comparable with that of females exposed to good environmental conditions in early life. These results are consistent with the idea of internal PAR and suggest that the life-history responses to early-life conditions can buffer the delayed effects of weather on population dynamics.

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