13 research outputs found
Long-Term Climate Forcing in Loggerhead Sea Turtle Nesting
The long-term variability of marine turtle populations remains poorly understood,
limiting science and management. Here we use basin-scale climate indices and
regional surface temperatures to estimate loggerhead sea turtle (Caretta
caretta) nesting at a variety of spatial and temporal scales.
Borrowing from fisheries research, our models investigate how oceanographic
processes influence juvenile recruitment and regulate population dynamics. This
novel approach finds local populations in the North Pacific and Northwest
Atlantic are regionally synchronized and strongly correlated to ocean
conditionsâsuch that climate models alone explain up to 88% of the
observed changes over the past several decades. In addition to its performance,
climate-based modeling also provides mechanistic forecasts of historical and
future population changes. Hindcasts in both regions indicate climatic
conditions may have been a factor in recent declines, but future forecasts are
mixed. Available climatic data suggests the Pacific population will be
significantly reduced by 2040, but indicates the Atlantic population may
increase substantially. These results do not exonerate anthropogenic impacts,
but highlight the significance of bottom-up oceanographic processes to marine
organisms. Future studies should consider environmental baselines in assessments
of marine turtle population variability and persistence
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Throughput-Dissipation Tradeoff in Partially Reversible Nanocomputing: A Case Study
Treatment Patterns and Outcomes Associated With Palbociclib Plus Letrozole for Postmenopausal Women With HR+/HER2â Advanced Breast Cancer Enrolled in an Expanded Access Program
Deviation from goal pace, body temperature and body mass loss as predictors of road race performance
BMI and Employment: Is There an Overweight Premium?
Using pooled data from the Health Survey of England (HSE) and a semi-parametric regression model, this paper aims to estimate the relationship between body weight and employment probability. We show that employment probabilities do not follow a linear relationship and are highest at a body weight over the clinical threshold for overweight. Instead of an âobesity penaltyâ we find evidence of an âoverweight premiumâ, especially in socially active jobs. These results suggests that there might exists an endogenous social norm governing body weight judgments and influencing employment prospects, which has been recently updated due to an increase in average body weight