Masses of scalloped hammerheads return to one of Australia's busiest beaches
For the second year in a row, over 100 hammerheads have gathered at one of Australia's busiest beaches, Burleigh Beach in the Gold Coast.
For the second year in a row, over 100 hammerheads have gathered at one of Australia's busiest beaches, Burleigh Beach in the Gold Coast.
Plants & Animals
Apr 16, 2024
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1
University of Otago researchers have formally identified and named a fossil dolphin which they discovered has a unique feeding method.
Plants & Animals
Apr 4, 2024
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171
Two red-tailed coral snakes have been observed competing over a caecilian in the first documented wild case of kleptoparasitism within the family Elapidae.
Plants & Animals
Mar 26, 2024
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926
A theoretical experiment characterized the network architecture of a species-rich ecosystem over eight months. Predator–prey interaction networks play a key role in structuring ecosystems, but ecological research has often ...
Ecology
Mar 6, 2024
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Foxes and cats kill about 2.6 billion mammals, birds and reptiles across Australia, every year. To save native species from extinction, we need to protect them from these introduced predators. But land managers tend to focus ...
Ecology
Mar 1, 2024
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The number of lemmings (Lemmus lemmus) in the mountains can fluctuate sharply from one year to the next. Years when populations explode are called lemming years. These population explosions are important for many other species. ...
Plants & Animals
Feb 23, 2024
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A regime shift is gradually spreading through the archipelagos of the Swedish Baltic Sea coast, where shallow bays, previously dominated by pike and perch have one by one become dominated by one of their prey species, the ...
Ecology
Feb 14, 2024
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13
In the first reintroduction of western quolls to a fenced conservation reserve, researchers from UNSW and Arid Recovery watched closely to measure their impacts on local prey species. While predation by quolls and the impacts ...
Plants & Animals
Jan 31, 2024
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In a new study, two species of bacteria grown in a lab reversed their predator-prey relationship after one species was grown at a lower temperature. Marie Vasse of MIVEGEC, France, and colleagues have published these findings ...
Ecology
Jan 23, 2024
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152
Gray wolves were reintroduced to Colorado in December 2023, the latest attempt in a decades-long effort to build up wolf populations in the Rocky Mountain states. SciLine interviewed Joanna Lambert, professor of wildlife ...
Plants & Animals
Jan 10, 2024
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In ecology, predation describes a biological interaction where a predator (an organism that is hunting) feeds on its prey, (the organism that is attacked). Predators may or may not kill their prey prior to feeding on them, but the act of predation always results in the death of the prey. The other main category of consumption is detritivory, the consumption of dead organic material (detritus). It can at times be difficult to separate the two feeding behaviors, for example where parasitic species prey on a host organism and then lay their eggs on it for their offspring to feed on its decaying corpse. The key characteristic of predation however is the predator's direct impact on the prey population. On the other hand, detritivores simply eat what is available and have no direct impact on the "donor" organism(s).
Selective pressures imposed on one another has led to an evolutionary arms race between prey and predator, resulting in various antipredator adaptations.
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