Results 11 to 20 of about 9,373 (153)

Global Patterns and Drivers of Climatic Niche Originality and Overlap: Disentangling Ecological From Methodological Signals. [PDF]

open access: yesEcol Evol
This study presents BioOverlap, a global database quantifying macroclimatic niche properties, niche overlap, and geographic range overlap for ~16,000 species. Analyses reveal that niche originality consistently reflects ecological factors such as niche breadth, productivity, and climatic heterogeneity, whereas pairwise niche–range relationships are ...
Chevalier M, Violet C, Boyé A.
europepmc   +2 more sources

Selachian faunas from the earliest Cretaceous Purbeck Group of Dorset, southern England. [PDF]

open access: yes, 2002
Abundant selachian remains have been recovered from a number of horizons through the Purbeck Group at Durlston Bay, Lulworth Cove and Stair Hole in southern England.
Rees, J., Underwood, Charlie J.
core   +7 more sources

Tooth morphology of deep-water catsharks of the genus Apristurus (Chondrichthyes: Pentanchidae) in the North Atlantic Ocean. [PDF]

open access: yesJ Fish Biol
Abstract The deep‐water catshark family (Pentanchidae) is the most species‐rich family among extant shark lineages. Within this family, the genus Apristurus is the largest, comprising small, deep‐sea species characterised by elongated bodies and dorso‐ventrally compressed snouts. Five Apristurus species are currently recognised from the North Atlantic,
Seifert J, Moore DM.
europepmc   +2 more sources

Bioenergetic Model of the Highly Exploited Shark Mustelus schmitti under a Global Warming Context

open access: yesDiversity, 2023
Bioenergetic models are tools that allow the evaluation of the effect of environmental variables on fish growth. Successful implementation of this approach has been achieved in a few elasmobranch species. Our objective was to develop a bioenergetic model
Juan Manuel Molina   +3 more
doaj   +1 more source

Pengembangan Media Pembelajaran Berbasis Aplikasi Lectora Inspire Pada Materi Chondrichthyes [PDF]

open access: yes, 2023
Penelitian ini bertujuan untuk mengembangkan media pembelajaran berbasis aplikasi Lectora Inspire Pada materi Chondrichthyes, mengukur kelayakan media pembelajaran, serta mengukur efektivitas media pembelajaran dalam meningkatkan hasil belajar ...
Pasaribu, Ribka Novita Christine   +1 more
core   +1 more source

An updated checklist of Chondrichthyes from the southeast Pacific off Peru [PDF]

open access: yesCheck List, 2015
The first updated and comprehensive checklist of Chondrichthyes from the southeast Pacific off Peru, based on the revision of scientific literature, is presented.
Rodolfo Cornejo   +4 more
doaj   +3 more sources

Paths from the heart: Morphology and evolution of afferent branchial arteries in Chondrichthyes [PDF]

open access: yesVertebrate Zoology
Chondrichthyes, a monophyletic group comprising sharks, batoids, and chimaeras, includes approximately 1200 valid species and displays remarkable morphological diversity, both internal and external.
Maria Clara El Bayeh de Andrade   +1 more
doaj   +3 more sources

The Development of the Chimaeroid Pelvic Skeleton and the Evolution of Chondrichthyan Pelvic Fins

open access: yesJournal of Developmental Biology, 2022
Pelvic girdles, fins and claspers are evolutionary novelties first recorded in jawed vertebrates. Over the course of the evolution of chondrichthyans (cartilaginous fish) two trends in the morphology of the pelvic skeleton have been suggested to have ...
Jacob B. Pears   +5 more
doaj   +1 more source

Late Jurassic selachians (Chondrichthyes, Elasmobranchii) from southern Germany: Re-evaluation on taxonomy and diversity [PDF]

open access: yes, 2004
The record and taxonomy of Late Jurassic selachians from southern Germany is reviewed and discussed. The conservation lagerstätten of Nusplingen and the Solnhofen area are outstanding because they yielded numerous entire skeletons.
Klug, S   +4 more
core   +1 more source

A Comparison of the Innate and Adaptive Immune Systems in Cartilaginous Fish, Ray-Finned Fish, and Lobe-Finned Fish

open access: yesFrontiers in Immunology, 2019
The immune system is composed of two subsystems—the innate immune system and the adaptive immune system. The innate immune system is the first to respond to pathogens and does not retain memory of previous responses.
Nicole C. Smith   +2 more
doaj   +1 more source

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