scholarly journals ZONACION DE OCTOCORALES GORGONACEOS EN EL AREA DE SANTA MARTA Y PARQUE NACIONAL TAYRONA, COSTA CARIBE COLOMBIANA

2016 ◽  
Vol 17 ◽  
Author(s):  
Leonor Botero
Keyword(s):  
Environmental Factors ◽  
Vertical Distribution ◽  
Distribution Patterns ◽  
Water Transparency ◽  
Wave Turbulence ◽  
Physical Environmental Factors

Thirty nine species of gorgonacean octocorals have been found so far in the area of SantaMarta and Parque NacionalTayrona. Themajority of zooxanthellate gorgonaceans are distributed betwenn 1 and 16-18 m of depth, since lack of hard, consolidated substrate inhibits their presence below these depths. The low water transparency is probably also influencing their maximun limit of vertical distribution, since on hard consolidated rock at 50 m of depth in one station, only azooxanthellate gorgonaceans grow. Type of substrate, amount of light and wave turbulence, are probably the main physical environmental factors that determine zonation and distribution patterns of gorgonaceans in the study area.

Measurement of selected indoor physical environmental factors in hairdresser salons in a Turkish City

2007 ◽  
Vol 134 (1-3) ◽  
pp. 471-477 ◽  
Author(s):  
E. D. Evci ◽  
M. D. Bilgin ◽  
Ş Akgör ◽  
Ş G. Zencirci ◽  
F. Ergiń ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Physical Environmental Factors

scholarly journals Do individual cognitions mediate the association of socio-cultural and physical environmental factors with adolescent sports participation?

2010 ◽  
Vol 13 (10A) ◽  
pp. 1746-1754 ◽  
Author(s):  
Klazine van der Horst ◽  
Anke Oenema ◽  
Saskia J te Velde ◽  
Johannes Brug
Keyword(s):  
Environmental Factors ◽  
Leisure Time ◽  
Sports Participation ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Family Routine ◽  
Social Environmental ◽  
Physical Environmental Factors ◽  
Sports Activities ◽  
At Home

AbstractObjectiveTo examine the associations of perceived physical environmental factors (availability of physical activity (PA) attributes at home, PA facilities in the neighbourhood, neighbourhood pleasantness and safety) and social environmental factors (parental sports behaviour and parental rule regarding sports participation) with adolescent leisure-time sports participation, and to explore whether the associations found were mediated by individual cognitions as derived from the theory of planned behaviour (TPB).DesignCross-sectional study.SettingIn schoolyear 2005/2006 adolescents from seventeen schools in Rotterdam, the Netherlands, completed a questionnaire during school hours that included self-reported measures of leisure-time sports participation, perceived physical environmental factors and TPB variables. Information about parental sports behaviour and parental rule was obtained from a questionnaire that was completed by one parent of the adolescents.SubjectsData were collected from 584 adolescent–parent combinations.ResultsData were analysed with multi-level logistic regression analyses. Availability of PA attributes at home (OR = 1·26), parents’ sports behaviour (OR = 2·03) and parental rule (OR = 1·64) were associated with a higher likelihood of adolescents’ leisure-time sports participation. These associations were partly mediated by attitude and intention.ConclusionsAdolescents were more likely to engage in leisure-time sports when PA attributes were available at home, when parents participated in sports activities and had a rule about their offspring participation in sports activities. These associations were partly mediated by attitude and intention. These results suggest that parents can importantly promote sports participation among their offspring by making sports activities accessible and a family routine.

Associations between Self-Reported and Objective Physical Environmental Factors and Use of a Community Rail-Trail

2001 ◽  
Vol 32 (2) ◽  
pp. 191-200 ◽  
Author(s):  
Philip J. Troped ◽  
Ruth P. Saunders ◽  
Russell R. Pate ◽  
Belinda Reininger ◽  
John R. Ureda ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Physical Environmental Factors

scholarly journals Distribution Patterns of Odonate Assemblages in Relation to Environmental Variables in Streams of South Korea

Insects ◽  
2018 ◽  
Vol 9 (4) ◽  
pp. 152 ◽  
Author(s):  
Da-Yeong Lee ◽  
Dae-Seong Lee ◽  
Mi-Jung Bae ◽  
Soon-Jin Hwang ◽  
Seong-Yu Noh ◽  
...  
Keyword(s):  
Land Use ◽  
Ecosystem Services ◽  
Environmental Factors ◽  
South Korea ◽  
Habitat Heterogeneity ◽  
Environmental Variables ◽  
Environmental Changes ◽  
Distribution Patterns ◽  
Self Organizing Map ◽  
Factors Affecting

Odonata species are sensitive to environmental changes, particularly those caused by humans, and provide valuable ecosystem services as intermediate predators in food webs. We aimed: (i) to investigate the distribution patterns of Odonata in streams on a nationwide scale across South Korea; (ii) to evaluate the relationships between the distribution patterns of odonates and their environmental conditions; and (iii) to identify indicator species and the most significant environmental factors affecting their distributions. Samples were collected from 965 sampling sites in streams across South Korea. We also measured 34 environmental variables grouped into six categories: geography, meteorology, land use, substrate composition, hydrology, and physicochemistry. A total of 83 taxa belonging to 10 families of Odonata were recorded in the dataset. Among them, eight species displayed high abundances and incidences. Self-organizing map (SOM) classified sampling sites into seven clusters (A–G) which could be divided into two distinct groups (A–C and D–G) according to the similarities of their odonate assemblages. Clusters A–C were characterized by members of the suborder Anisoptera, whereas clusters D–G were characterized by the suborder Zygoptera. Non-metric multidimensional scaling (NMDS) identified forest (%), altitude, and cobble (%) in substrata as the most influential environmental factors determining odonate assemblage compositions. Our results emphasize the importance of habitat heterogeneity by demonstrating its effect on odonate assemblages.

Diel vertical distribution of early marine phase juvenile pink salmon (Oncorhynchus gorbuscha) and behaviour when exposed to salmon louse (Lepeophtheirus salmonis)

2011 ◽  
Vol 89 (9) ◽  
pp. 796-807 ◽  
Author(s):  
S. Tang ◽  
A.G. Lewis ◽  
M. Sackville ◽  
L. Nendick ◽  
C. DiBacco ◽  
...  
Keyword(s):  
Vertical Distribution ◽  
Water Column ◽  
Pink Salmon ◽  
Distribution Patterns ◽  
Oncorhynchus Gorbuscha ◽  
Lepeophtheirus Salmonis ◽  
Night Time ◽  
Pink Salmon Oncorhynchus Gorbuscha ◽  
Salmon Louse ◽  
Seawater Acclimation

We observed diel vertical migration patterns in juvenile pink salmon ( Oncorhynchus gorbuscha (Walbaum, 1792)) and tested the hypothesis that fish behaviour is altered by exposure to sea lice copepodids. Experiments involved replicated field deployments of a large (9 m) plankton column, which provided a vertical distribution enclosure under natural light and salinity conditions. Diel vertical distributions of juvenile pink salmon were observed during the first 3 weeks of seawater acclimation in both the presence and the absence of the ectoparasitic salmon louse ( Lepeophtheirus salmonis (Krøyer, 1838)). Immediately upon entering seawater, juvenile pink salmon preferred the top 1 m of the water column, but they moved significantly deeper down the vertical water column as seawater acclimation time increased. A significant diel migration pattern was observed, which involved a preference for the surface at night-time, compared with daytime. When fish in the column were exposed to L. salmonis copepodids for 3 h, 43%–62% of fish became infected, fish expanded their vertical distribution range, and significant changes in vertical distribution patterns were observed.

scholarly journals Physical environmental factors that invite older adults to walk for transportation

2014 ◽  
Vol 38 ◽  
pp. 94-103 ◽  
Author(s):  
Jelle Van Cauwenberg ◽  
Veerle Van Holle ◽  
Ilse De Bourdeaudhuij ◽  
Peter Clarys ◽  
Jack Nasar ◽  
...  
Keyword(s):  
Older Adults ◽  
Environmental Factors ◽  
Physical Environmental Factors
Sign in / Sign up

Export Citation Format

Share Document