Results 21 to 30 of about 6,102 (197)

Patterns of Macroinvertebrate and Fish Diversity in Freshwater Sulphide Springs

open access: yesDiversity, 2014
Extreme environments are characterised by the presence of physicochemical stressors and provide unique study systems to address problems in evolutionary ecology research.
Ryan Greenway   +3 more
doaj   +1 more source

Predation risk reduces a female preference for heterospecific males in the green swordtail [PDF]

open access: yes, 2016
The presence of a predator can result in the alteration, loss or reversal of a mating preference. Under predation risk, females often change their initial preference for conspicuous males, favouring less flashy males to reduce the risk of being detected ...
Alonzo, Suzanne H.   +2 more
core   +1 more source

Conflict outcome in male green swordtail fish dyads (Xiphophorus helleri): Interaction of body size, prior dominance/subordination experience and prior residency [PDF]

open access: yes, 1996
The relative contribution of asymmetries in prior experience, size, and prior residency to the determination of dyadic dominance between unacquainted individuals was examined using pairs of green swordtail fish, Xiphophorus helleri.
Beaugrand, Jacques P.   +2 more
core   +1 more source

Inner ear morphology in the Atlantic molly Poecilia mexicana [PDF]

open access: yes, 2011
Fishes show an amazing diversity in hearing abilities, inner ear structures, and otolith morphology. Inner ear morphology, however, has not yet been investigated in detail in any member of the diverse order Cyprinodontiformes.
Hess, Martin   +2 more
core   +1 more source

Convergent evolution of coloration in experimental introductions of the guppy (Poecilia reticulata). [PDF]

open access: yes, 2018
Despite the multitude of examples of evolution in action, relatively fewer studies have taken a replicated approach to understand the repeatability of evolution.
Dick, Cynthia   +3 more
core   +1 more source

Unity in the wild variety of nature, or just variety? [PDF]

open access: yes, 2005
Although there are some common underlying mechanisms for many nonhuman behavioural asymmetries, the evidence at present is not compelling for commonalities in cerebral organisation across vertebrates.
McManus, IC
core   +1 more source

Ecto- and endo-parasitic monogeneans (Platyhelminthes) on cultured freshwater exotic fish species in the state of Morelos, South-Central Mexico

open access: yesZooKeys, 2018
An extensive parasitological study of 365 freshwater exotic fish specimens belonging to 13 species of seven families (Cichlidae, Cyprinidae, Osphronemidae, Pangasidae, Poeciliidae, Characidae, and Loricariidae) collected from 31 Aquaculture Production ...
Edgar F. Mendoza-Franco   +2 more
doaj   +3 more sources

First record of the Southern Platyfish, Xiphophorus maculatus (), (Cyprinodontiformes: Poeciliidae) in coastal streams of Venezuela and implications for conservation [PDF]

open access: yesActa Limnologica Brasiliensia
Several fishes of the family Poeciliidae are commonly produced in ornamental aquaculture and also used for pest control, leading to their introduction in numerous countries.
Douglas Rodríguez-Olarte   +3 more
doaj   +1 more source

Casanovas are liars : behavioral syndromes, sperm competition risk, and the evolution of deceptive male mating behavior in live-bearing fishes [version 2; referees: 2 approved, 1 approved with reservations] [PDF]

open access: yes, 2013
Male reproductive biology can by characterized through competition over mates as well as mate choice. Multiple mating and male mate choice copying, especially in internally fertilizing species, set the stage for increased sperm competition, i.e., sperm ...
Bierbach, David   +5 more
core   +2 more sources

DNA Barcoding Ikan Introduksi Khas Telaga Sari, Kabupaten Pasuruan

open access: yesBiotropika: Journal of Tropical Biology, 2019
Telaga Sari terletak di Purwodadi, Kabupaten Pasuruan yang memiliki kelimpahan jenis ikan introduksi dari Famili Poeciliidae. Anggota Poeciliidae merupakan ikan yang berukuran kecil, live-bearers, memiliki dimorfi seksual dari segi ukuran tubuh dan pola ...
Dwi Anggorowati Rahayu   +2 more
doaj   +1 more source

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