Ecologists studying hare populations have found that the North American snowshoe hare follows a roughly ten-year cycle . Its numbers fall tenfold to thirty ina typical cycle , and a hundredfold change canoccur . T wo factors appear to be generating the cycle : food plants and predators .T ...
Ecologists studying har e populations have foun d that th e North American snowsho e har e follow s a roughly ten-year cycl e. Its numbers fall tenfol d t o thirty in a typical cycle, an d a hundredfol d chang e can occur. T wo factors appear to b e generating th e cycle: ...
Population cycles are characteristic of small mammals,and they sometimes appear to be brought about by predators.Ecologists studying hare populations have found that the North American snowshoe hare follows a roughly ten-year cycle.Its numbers fall tenfold to thirty in a typical cycle,and a ...
Population cycles are characteristic of small mammals,and they sometimes appear to be brought about by predators.Ecologists studying hare populations have found that the North American snowshoe hare follows a roughly ten-year cycle.Its numbers fall tenfold to thirty in a typical cycle,and a hundredf...
How do population ecologists quantitatively describe such a population? (Figure 1). Figure 1: Changes in a population of Paramecium over a six day period Each individual in the population divides once per day. The Exponential Equation is a Standard Model Describing the Growth of a Single ...
This has led to problems for conservation ecologists due to increased numbers of reported human-wildlife encounters. Deer are often found in public spaces and are of particular concern. Previous research suggests elevated levels of stress hormones (e.g., cortisol) in deer is a result of ...
Ecologists have developed mathematical equations describing how much prey a predator should be able to eat, and elegant graphs show how populations rise and fall as one eats the other. But what really happens in nature? Does size matter? How many 1-day-old tadpoles does a fully grown wat...
Bulletin of the Society of Vector Ecologists 10, 30–35 (1985). 16. Silverman, J. & Rust, M. K. Some Abiotic Factors Affecting the Survival of the Cat Flea, Ctenocephalides felis (Siphonaptera: Pulicidae). Environmental Entomology 12, 490–495 (1983). 17. Dryden, M. W. Biology of ...
Many people in the West have never even heard of the pangolin, yet this "scaly anteater" is the source of a billion-dollar criminal industry that threatens to push it to extinction. BBC Future met a team of Hong Kong's ecologists and activists trying to save these creatures from extinction...
Our goal in this review is to build a bridge between cognitive neuroscientist and evolutionary biologists, illustrate how their research could be complementary, and encourage evolutionary ecologists to include explicit attention to cognitive processes in their studies of behaviour. We believe that in ...