Tag: gradient

Discovery of Natural Separation of Isotopes in Layered Intrusions Provided by the Gradients of a Temperature, of a Pressure and of a Deformation, using Lukkulaisvaara Intrusion (North Karelia) as an Example

The geographical local abnormalities of concentration ratios for isotopes 143Nd/144Nd (or eNd) and 87Sr/86Sr were discovered in the Lukkulaisvaara intrusion (North Karelia). Physical processes and descriptions of the effects of anomaly emergence were established and presented. The hypothesised mechanisms are based on the phenomenon of component migration (diffusion) caused...
Read More

Total Body Rings Increase with Latitude and Decrease with Precipitation in Forest Millipedes Centrobolus Cook, 1897| Chapter 13 | New Visions in Biological Science Vol.9

Juliformia’s size is determined by two factors: body diameter and number of rings. The researchers wanted to see if there were any links between latitude and precipitation and body rings and sexual size dimorphism (SSD) in Centrobolus. The number of body rings in females and latitude (r=-0.53, Z score=-2.35,...
Read More

The Latitudinal Gradient in Dalodesmidae Cook, 1896a Species Richness | Chapter 12 | New Visions in Biological Science Vol.9

The Tropical Conservativism Hypothesis proposes that processes of speciation, extinction, and dispersal resulted in higher species richness in the tropics and decreased away from the equator, implying that species richness increased in the tropics and fell away from the equator. The Biogeographical Conservativism Hypothesis proposes that the processes in...
Read More

The Inverse Latitudinal Gradient in Species Richness of Forest Millipedes: Centrobolus Cook, 1897| Chapter 11 | New Visions in Biological Science Vol.9

The goal of this study was to see if forest millipedes could test the Tropical Conservativism Hypothesis and the Biogeographical Conservativism Hypothesis. To discriminate between the two ideas, the latitudinal diversity gradient (LDG) was evaluated in the Centrobolus genus. The number of species and latitudinal degrees distant from the...
Read More

Why Sexual Size Dimorphism Increases with Longitude, Precipitation and Temperature and Decreases with Latitude in Forest Millipedes Centrobolus Cook, 1897| Chapter 9 | New Visions in Biological Science Vol.9

The goal of this research was to see what happened when Bergmann’s Rule collided with Rensch’s Rule Sexual Size Dimorphism (SSD) and body size varied as a result of eco-geographical factors. In the woodland millipede genus Centrobolus, body size and SSD were associated with latitude, longitude, precipitation, and temperature....
Read More

Assessment of Latitudinal Gradient in Species Richness of Sphaerotherium| Chapter 3 | New Visions in Biological Science Vol.9

Forest millipedes were used to test the Tropical Conservativism Hypothesis and the Biogeographical Conservativism Hypothesis. The Biogeographical Conservativism Hypothesis proposes that the processes involved are not unique to the tropics, but rather rely on historical biogeography to determine species richness distribution. To discriminate between the two ideas, the latitudinal...
Read More