Results 91 to 100 of about 5,244 (196)

Colony Specificity in the Xenogeneic Combinations among Four Botrylloides Species (Urochordata, Ascidiacea) [PDF]

, 2002
Xenogeneic rejection reactions were histologically examined among four compound ascidians of the genus Botrylloides; B. simodensis, B. lentus, B. fuscus and B. violaceus, to compare with the allogeneic rejections of these species.
Hirose Euichi, Saito Yasunori, Shirae Maki, 齊藤 康典   +3 more
core   +1 more source

Corytophanes hernandesii [PDF]

, 2004
Number of Pages: 6Integrative BiologyGeological ...
McCranie, James R., Townsend, Josiah H., Wilson, Larry David   +2 more
core   +1 more source

Changing Feeding Levels Reveal Plasticity in Elasmobranch Life History Strategies

Ecology Letters, Volume 28, Issue 9, September 2025.
We analysed life history traits of 151 elasmobranch species for two contrasting feeding levels in a principal components analysis. Two axes, reproductive output and generation turnover, structure elasmobranch life history strategies. Wefound that species' positions in this life history space are dynamic, shifting towards higher reproductive output as ...
Sol Lucas, Per Berggren, Ellen Barrowclift, Isabel M. Smallegange   +3 more
wiley   +1 more source

Reproductive biology, distribution and abundance of Squalus megalops (Macleay, 1881) and Squalus mitsukurii (Jordan & Snyder, 1903) off southern Brazil, southwest Atlantic

Journal of Fish Biology, Volume 107, Issue 3, Page 824-836, September 2025.
Abstract Squalus megalops and Squalus mitsukurii are recognized as the most abundant Squalus species in the southern Brazil region. Currently, S. megalops is listed as ‘least concern’ (LC) and S. mitsukurii as ‘endangered’ (EN). However, at the regional level, both species are classified as ‘data deficient’ – DD, due to the lack of population local ...
Mônica Camila Lourenço, Gabriel Canani, Maria Cristina Oddone   +2 more
wiley   +1 more source

A Viviparous Fly [PDF]

The American Naturalist, 1873
Mode of access: Internet.
openaire   +1 more source

Viviparity Stimulates Diversification in an Order of Fish

, 2016
International audienceSpecies richness is distributed unevenly across the tree of life and this may be influenced by the evolution of novel phenotypes that promote diversification.
Helmstetter, AJ, Igea, J, Leroi, AM, Papadopulos, AST, Savolainen, V, Van Dooren, TJM   +5 more
core   +2 more sources

Condition and energy allocation during the reproductive cycle of the Patagonian redfish Sebastes oculatus from the Argentine continental shelf

Marine and Fishery Sciences
The Patagonian redfish (Sebastes oculatus Valenciennes 1833) is a viviparous species inhabiting the mid and outer shelf waters, as well as the rocky reefs along the Patagonian coast of Argentina.
Karina A. Rodrigues, Ezequiel Leonarduzzi, María I. Militelli, Gustavo J. Macchi   +3 more
doaj   +1 more source

Next-generation sequencing yields a nearly complete mitochondrial genome of the Multiocellated Racerunner (Eremias multiocellata) in Northwest China

Mitochondrial DNA. Part B. Resources, 2019
The viviparous Multiocellated Racerunner, Eremias multiocellata, is widespread in North China, Mongolia, and the Tuva Republic of Russia. A nearly complete mitochondrial genome of one individual from the suburb of Jingyuan County in Northwest China was ...
Xiuliang Su, Jinlong Liu, Dali Chen, Xianguang Guo   +3 more
doaj   +1 more source

Reproducción asincrónica de Sceloporus palaciosi (Sauria: Phrynosomatidae) en México, con comentarios sobre sus ventajas y regulación

Revista de Biología Tropical, 1998
Fall reproduction is a common pattern in viviparous lizards from Mexican mountains. The reproductive pattern of Sceloporus palaciosi is seasonal but asynchronous between sexes.
Fausto R. Méndez, Maricela Villagrán
doaj  

Egg retention and intrauterine embryonic development in Sceloporus aeneus (Reptilia: Phrynosomatidae): implications for the evolution of viviparity

Revista Mexicana de Biodiversidad, 2012
Egg retention (ER) and intrauterine embryonic development (IED) have been considered intermediate steps in the evolution from oviparity to viviparity. Sceloporus aeneus is an oviparous lizard that is closely related to the viviparous species (Sceloporus ...
Rodolfo García-Collazo, Maricela Villagrán-Santa Cruz, Eduardo Morales-Guillaumin, Rubi Nelsi Meza-Lázaro, Fausto R. Méndez-de la Cruz   +4 more
doaj   +1 more source