Results 111 to 120 of about 31,138 (282)
Ecology and Evolution, Volume 16, Issue 2, February 2026.Obligatory brood parasitism in the Lake Tanganyika cuckoo catfish requires rapid reproductive readiness to exploit unpredictable host spawning. Our experiments showed that males are almost continuously ready to reproduce, while females ovulate about once a week, with social interactions enhancing gamete maturation in both sexes.
Holger Zimmermann +5 more
wiley +1 more source
Innervation Drives Postembryonic Expansion of the Zebrafish Anterior Lateral Line System
Journal of Comparative Neurology, Volume 534, Issue 1, January 2026.A dramatic expansion of the anterior lateral line system occurs during zebrafish ontogeny, largely driven by the addition of superficial neuromasts. Here, we describe a new hybrid‐origin mechanism of neuromast addition and uncover a larval‐stage developmental switch to an innervation‐dependent phase of expansion.
Theresa J. Christiansen +2 more
wiley +1 more source
An introgressed wing pattern acts as a mating cue. [PDF]
, 2015 Heliconius butterflies provide good examples of both homoploid hybrid speciation and ecological speciation. In particular, examples of adaptive introgression have been detected among the subspecies of Heliconius timareta, which acquired red color pattern
Enciso-Romero, Juan +6 more
core +2 more sources
Ecology and Evolution, Volume 16, Issue 1, January 2026.This study morphologically analyzed 385 Diptychus maculatus from 5 Tarim River Basin populations. Using traditional and geometric morphometrics, it revealed environmental (high‐altitude cold, rapids, reservoir flows) and human‐driven morphological differentiation.
Yichao Hao +6 more
wiley +1 more source
FishesThe radiation of cichlid species in the East African Great Lakes is remarkable and rapid. The population genetics of two deep-water Cyphotilapia species along the east coast of Lake Tanganyika from Burundi to southern Tanzania was determined using ddRAD ...
George D. Jackson +5 more
doaj +1 more source
Environmental DNA, 2020 Background and Aims Environmental DNA (eDNA) metabarcoding provides a highly sensitive method of surveying freshwater fish communities, although studies to date have largely been restricted to temperate ecosystems.
Christopher J. Doble +6 more
doaj +1 more source
Mortality estimates of the four major Cichlid fishes of Umuoseriche Lake, Imo State, Nigeria [PDF]
, 2004 The mortality of the four major cichlid fishes of Urnuoseriche Lake is the subject of this paper. Mortality I as estimated by five techniques, vary amongst the cichlid fishes, viz, Tilapia carbrae, Tilapia mariac, Tilapia zilli cend (hrornoditilapfa ...
Anene, Afamdi
core
Phase Transition in Sexual Reproduction and Biological Evolution
, 2008 Using Monte Carlo model of biological evolution we have discovered that populations can switch between two different strategies of their genomes' evolution; Darwinian purifying selection and complementing the haplotypes. The first one is exploited in the
Ayala F. J. +9 more
core +1 more source
Carotenoid-based coloration in cichlid fishes
Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology, 2014 Animal colors play important roles in communication, ecological interactions and speciation. Carotenoid pigments are responsible for many yellow, orange and red hues in animals. Whereas extensive knowledge on the proximate mechanisms underlying carotenoid coloration in birds has led to testable hypotheses on avian color evolution and signaling, much ...
Sefc, Kristina M. +2 more
openaire +2 more sources
Environmental Toxicology, Volume 41, Issue 1, Page 81-94, January 2026.ABSTRACT The toxicity of microplastics in aquatic environments is usually due to plasticizers, the chemical additives that keep the plastic polymers together. Thus, the current study reports on the toxicity of three common plasticizers found in freshwater ecosystems and their impacts on two South African freshwater organisms at the organismal and ...
Paul Kojo Mensah +4 more
wiley +1 more source