scholarly journals Fusion of Holistic and Part Based Features for Gender Classification in the Wild

2015 ◽  
pp. 43-50 ◽  
Author(s):  
Modesto Castrillón-Santana ◽  
Javier Lorenzo-Navarro ◽  
Enrique Ramón-Balmaseda
Keyword(s):  
Gender Classification ◽  
In The Wild

Coarse and Fine: A New Method for Gender Classification in the Wild

2017 ◽  
pp. 162-171
Author(s):  
Qianbo Jiang ◽  
Li Shao ◽  
Zhengxi Liu ◽  
Qijun Zhao
Keyword(s):  
New Method ◽  
Gender Classification ◽  
In The Wild

scholarly journals Multi-scale score level fusion of local descriptors for gender classification in the wild

2016 ◽  
Vol 76 (4) ◽  
pp. 4695-4711 ◽  
Author(s):  
M. Castrillón-Santana ◽  
J. Lorenzo-Navarro ◽  
E. Ramón-Balmaseda
Keyword(s):  
Scale Score ◽  
Gender Classification ◽  
Score Level Fusion ◽  
Local Descriptors ◽  
Multi Scale ◽  
In The Wild ◽  
Level Fusion

scholarly journals Descriptors and regions of interest fusion for in- and cross-database gender classification in the wild

2017 ◽  
Vol 57 ◽  
pp. 15-24 ◽  
Author(s):  
M. Castrillón-Santana ◽  
J. Lorenzo-Navarro ◽  
E. Ramón-Balmaseda
Keyword(s):  
Regions Of Interest ◽  
Gender Classification ◽  
In The Wild

On using periocular biometric for gender classification in the wild

2016 ◽  
Vol 82 ◽  
pp. 181-189 ◽  
Author(s):  
Modesto Castrillón-Santana ◽  
Javier Lorenzo-Navarro ◽  
Enrique Ramón-Balmaseda
Keyword(s):  
Gender Classification ◽  
In The Wild

Freeze-substituted fungal cells of Nectria haematococca: A comparison of the macroconidial walls of the adhesion-competent wild type with an adhesion-reduced mutant

1990 ◽  
Vol 48 (3) ◽  
pp. 688-689
Author(s):  
Thecan Caesar-Ton That ◽  
Lynn Epstein
Keyword(s):  
Freeze Substitution ◽  
Uranyl Acetate ◽  
Wild Type ◽  
Nectria Haematococca ◽  
Fruit Extract ◽  
Dialysis Tubing ◽  
Tube Emergence ◽  
Contrast Microscopy ◽  
In The Wild ◽  
Freeze Damage

Nectria haematococca mating population I (anamorph, Fusarium solani) macroconidia attach to its host (squash) and non-host surfaces prior to germ tube emergence. The macroconidia become adhesive after a brief period of protein synthesis. Recently, Hickman et al. (1989) isolated N. haematococca adhesion-reduced mutants. Using freeze substitution, we compared the development of the macroconidial wall in the wild type in comparison to one of the mutants, LEI.Macroconidia were harvested at 1C, washed by centrifugation, resuspended in a dilute zucchini fruit extract and incubated from 0 - 5 h. During the incubation period, wild type macroconidia attached to uncoated dialysis tubing. Mutant macroconidia did not attach and were collected on poly-L-lysine coated dialysis tubing just prior to freezing. Conidia on the tubing were frozen in liquid propane at 191 - 193C, substituted in acetone with 2% OsO4 and 0.05% uranyl acetate, washed with acetone, and flat-embedded in Epon-Araldite. Using phase contrast microscopy at 1000X, cells without freeze damage were selected, remounted, sectioned and post-stained sequentially with 1% Ba(MnO4)2 2% uranyl acetate and Reynold’s lead citrate. At least 30 cells/treatment were examined.

Prey tell: what quillback rockfish early life history traits reveal about their survival in encounters with juvenile coho salmon

2020 ◽  
Vol 650 ◽  
pp. 7-18 ◽  
Author(s):  
HW Fennie ◽  
S Sponaugle ◽  
EA Daly ◽  
RD Brodeur
Keyword(s):  
Life History ◽  
Early Life ◽  
Life History Traits ◽  
Direct Evidence ◽  
Coho Salmon ◽  
Larval Fish ◽  
Early Life History ◽  
In The Wild ◽  
Otolith Microstructure Analysis ◽  
Pelagic Juvenile

Predation is a major source of mortality in the early life stages of fishes and a driving force in shaping fish populations. Theoretical, modeling, and laboratory studies have generated hypotheses that larval fish size, age, growth rate, and development rate affect their susceptibility to predation. Empirical data on predator selection in the wild are challenging to obtain, and most selective mortality studies must repeatedly sample populations of survivors to indirectly examine survivorship. While valuable on a population scale, these approaches can obscure selection by particular predators. In May 2018, along the coast of Washington, USA, we simultaneously collected juvenile quillback rockfish Sebastes maliger from both the environment and the stomachs of juvenile coho salmon Oncorhynchus kisutch. We used otolith microstructure analysis to examine whether juvenile coho salmon were age-, size-, and/or growth-selective predators of juvenile quillback rockfish. Our results indicate that juvenile rockfish consumed by salmon were significantly smaller, slower growing at capture, and younger than surviving (unconsumed) juvenile rockfish, providing direct evidence that juvenile coho salmon are selective predators on juvenile quillback rockfish. These differences in early life history traits between consumed and surviving rockfish are related to timing of parturition and the environmental conditions larval rockfish experienced, suggesting that maternal effects may substantially influence survival at this stage. Our results demonstrate that variability in timing of parturition and sea surface temperature leads to tradeoffs in early life history traits between growth in the larval stage and survival when encountering predators in the pelagic juvenile stage.

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