Agonistic behavioral interactions between introduced western mosquitofish and native topminnows
نویسندگان
چکیده
منابع مشابه
Sociability between invasive guppies and native topminnows
The role of interspecific social interactions during species invasions may be more decisive than previously thought. Research has revealed that invasive fish improve their foraging success by shoaling with native Mexican species, and potentially increase the chances of invasion success. However, do native individuals tend to associate with invaders as well? We tested the hypothesis that the two...
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There are about 40 species of native bees in New Zealand, all belonging to the two most primitive bee families. Seven species have been introduced and established, five of which belong to the most advanced family of bees. All bees exploit similar resources such as nest sites, pollen, and nectar, so the question arises as to whether native and introduced bees are competing for these resources. S...
متن کاملQuantifying Differences Between Native and Introduced Species.
Introduced species have historically been presumed to be evolutionarily novel and 'different' from native species. Recent studies question these assumptions, however, as the traits and factors promoting successful introduced and native species can be similar. We advocate a novel statistical framework utilizing quantifiable metrics of evolutionary and ecological differences among species to test...
متن کاملViability Costs of Reproduction and Behavioral Compensation in Western Mosquitofish (Gambusia affinis)
The cost of reproduction hypothesis suggests that current reproduction has inherent tradeoffs with future reproduction. These tradeoffs can be both in the form of energy allocated to current offspring as opposed to somatic maintenance and future reproduction (allocation costs), or as an increase in mortality as a result of morphological or physiological changes related to reproduction (viabilit...
متن کاملHermaphroditism in Laboratory-Cultured Albino Western Mosquitofish.
During routine inspection of a colony of albino western mosquitofish Gambusia affinis, approximately 10 females were discovered to have distended abdominal cavities. Cause for the distention was investigated by examination of tissue sections from four sacrificed individuals, all of which suffered severe ascites. Hermaphroditic gonads were seen in two of the fish.
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ژورنال
عنوان ژورنال: Journal of Freshwater Ecology
سال: 2013
ISSN: 0270-5060,2156-6941
DOI: 10.1080/02705060.2012.688492