Mammal Occurrence in Rock Outcrops in Shenandoah National Park: Ecological and Anthropogenic Factors Influencing Trap Success and Co-Occurrence

2017 ◽  
Vol 37 (4) ◽  
pp. 507-514 ◽  
Author(s):  
Jason V. Lombardi ◽  
Michael T. Mengak ◽  
Steven B. Castleberry ◽  
Vanessa K. Terrell
Keyword(s):  
National Park ◽  
Anthropogenic Factors ◽  
Rock Outcrops ◽  
Shenandoah National Park ◽  
Factors Influencing

Study on Prediction Model of Karstic Large Spring Water Level Dynamic Coupling Multiple Factors in Jinan

2015 ◽  
Vol 8 (1) ◽  
pp. 309-317 ◽  
Author(s):  
Xing Liting ◽  
Zhou Juan ◽  
Zhang Fengjuan ◽  
Wang Song ◽  
Dou Tongwen ◽  
...  
Keyword(s):  
Prediction Model ◽  
Water Level ◽  
Spring Water ◽  
Anthropogenic Factors ◽  
Karst Water ◽  
Multiple Factors ◽  
Factors Influencing ◽  
Heterogeneous Features ◽  
Dry Seasons ◽  
Natural Decay

In karst regions, due to the heterogeneous features of karst medium, the characteristics of the groundwater flow turn to be of high complexity. Researchers have been seeking proper forecasting methods for karst water dynamic for many years. This paper, taking the spring in Jinan as an example, using regression analysis, analyzed the factors influencing spring water dynamic, and quantitatively evaluated the influencing coefficients of spring water level concerning rainfall, exploitation and recharge as well as the natural decay coefficient of spring water in dry seasons. The prediction model coupling multiple factors was built by investigating natural and anthropogenic factors influencing groundwater level, which could be used for forecasting dynamic of spring water in Jinan. The calculated value of model was highly coincided with the observed value. In consideration of the characteristics of uneven precipitation in Jinan, the suitable zones and volume of artificial recharge were investigated finally, which could help to sustain the spewing of Jinan springs significantly.

Host species influence on flea (Siphonaptera) infection parameters of terrestrial micromammals in a temperate forest of Mexico

Parasitology ◽  
2018 ◽  
Vol 146 (5) ◽  
pp. 670-677
Author(s):  
Fernando Aguilar Montiel ◽  
Arturo Estrada-Torres ◽  
Roxana Acosta ◽  
Miguel Rubio-Godoy ◽  
Jorge Vázquez
Keyword(s):  
Host Species ◽  
National Park ◽  
Temperate Forest ◽  
Flea Species ◽  
Factors Influencing ◽  
La Malinche ◽  
Infection Parameters ◽  
Major Factors ◽  
La Malinche National Park ◽  
Abundance And Distribution

AbstractStudies of abundance and distribution of organisms are fundamental to ecology. The identity of host species is known to be one of the major factors influencing ectoparasitic flea abundance, but explanations are still needed regarding how host taxa influence abundance parameters of different flea species. This study was carried out at La Malinche National Park (LMNP), Tlaxcala, Mexico, where previously 11 flea species had been recorded on 8 host species. Our aims were to list micromammal flea species, to determine flea infection parameters [flea prevalence (FP) and flea mean abundance (FMA)] and to analyse the influence of host species on these parameters. A total of 16 species of fleas were identified from 1178 fleas collected from 14 species of 1274 micromammals captured with Sherman®traps from March 2014 to December 2015 in 18 sites at LMNP. Some host species influence FP and FMA, in particular,Microtus mexicanusandPeromyscus melanotisshowed particularly higher infection values than other host species.Plusaetis aztecusandPlusaetis sibynuswere identified as the most abundant flea species.

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