Guppies
نویسنده
چکیده
What are guppies? Guppies (Poecilia reticulata) are small tropical fish, native to the coastal streams of northeast South America. They owe their name to Robert John Lechmere Guppy who introduced them into the aquarium trade. Guppies have since become very popular aquarium fish, known for colorful males and live-bearing females. But guppies are also one of the premier model systems for the study of ecology, evolution, genetics, and sexual selection. The guppy is now poised to become an important model for functional genomics of adaptive characters.
منابع مشابه
Guppies as predators of common mosquito larvae in Malaysia.
Observation on predation activities of guppies (Poecilia reticulata) on the larvae of three species of mosquito, namely Aedes albopictus, Aedes aegypti, and Culex quinquefasciatus was carried out under laboratory conditions. Male and female guppies were used as predators for predation experiments on the 4th instars of mosquito larvae. The daily feeding rates comparing male and female guppies on...
متن کاملInvestigation of LC50, NOEC and LOEC of Glyphosate, Deltamethrin and Pretilachlor in Guppies (Poecilia Reticulata)
Background: The presence of pesticides is very prevalent in surface waters of Iran. These toxic substances may accumulate in the food chain and cause serious ecological and health problems. The aim of this study was to determine the acute toxicity of glyphosate, deltamethrin and pretilachlor as potential dangerous organic pesticides to assess lethal effects of these chemicals agents to the Gu...
متن کاملThe direct and indirect effects of guppies: implications for lifehistory evolution in Rivulus hartii
1. Ecological factors that alter mortality rates, such as predation, can cause evolutionary change. However, in addition to killing prey, predators can reduce prey abundance and increase food to survivors. Such indirect effects may also cause evolution. Predictions from theory that models how life histories evolve in response to increased mortality rates often change when they include indirect ...
متن کاملOn the natural history of an introduced population of guppies (Poecilia reticulata Peters, 1859) in Germany
Artificially heated water bodies represent unusual habitats in temperate regions and form a refuge for exceptional fish communities. The Gillbach, a tributary of the river Erft in Germany, receives thermally polluted cooling water from a power plant. Here, we present data on the composition of the fish community in the Gillbach and found a high abundance of invasive species from all over the wo...
متن کاملEvolution of juvenile growth rates in female guppies (Poecilia reticulata): predator regime or resource level?
Recent theoretical and empirical work argues that growth rate can evolve and be optimized, rather than always being maximized. Chronically low resource availability is predicted to favour the evolution of slow growth, whereas attaining a size-refuge from mortality risk is predicted to favour the evolution of rapid growth. Guppies (Poecilia reticulata) evolve differences in behaviour, morphology...
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ورودعنوان ژورنال:
- Current Biology
دوره 16 شماره
صفحات -
تاریخ انتشار 2006