Results 121 to 130 of about 106,461 (304)

Structure of inflorescenses in Сampanulaceae

open access: yesRUDN Journal of Ecology and Life Safety, 2008
Comparative morphological analysis of inflorescenses in Campanulaceae family revealed different patterns of their structure. There is the intraspecific variability in some characteristics of the species. Main changes tendencies are shown.
N P Balоbanova
doaj  

Pairwise interaction point processes for modelling bivariate spatial point patterns in the presence of interaction uncertainty [PDF]

open access: yes, 2015
Current ecological research seeks to understand the mechanisms that sustain biodiversity and allow a large number of species to coexist. Coexistence concerns inter-individual interactions. Consequently, there is an interest in identifying and quantifying
Illian, Janine Baerbel   +2 more
core   +1 more source

A second species of non‐crocodyliform crocodylomorph from the Late Triassic fissure deposits of southwestern UK: Implications for locomotory ecological diversity in Saltoposuchidae

open access: yesThe Anatomical Record, EarlyView.
Abstract The Late Triassic–Early Jurassic fissures of the Bristol Channel area (southwest England and south Wales) are renowned for their diverse vertebrate faunas. These assemblages have yielded an array of predominantly small‐bodied forms that are crucial to our understanding of the early evolution of several major tetrapod clades.
Ewan H. Bodenham   +4 more
wiley   +1 more source

An enrichment‐based capture method from nuclear environmental DNA presents new opportunities for population genomics: A case study on the common frog

open access: yesMethods in Ecology and Evolution
Population genetics is a powerful tool for studying evolutionary processes and informing conservation biology. Traditional approaches typically rely on tissue sampling, which poses challenges in aquatic environments where specimen collection is often ...
Stéphanie Manel   +13 more
doaj   +1 more source

Much more than their fangs: Macroscopic anatomy of the brain of Bothrops moojeni Hoge 1966 (Squamata, Serpentes, Viperidae)

open access: yesThe Anatomical Record, EarlyView.
Abstract Neuroanatomical research has progressed considerably in several vertebrate lineages, yet studies of reptilian brain morphology remain markedly underdeveloped. Here we provide the first description of macroscopic brain anatomy and its ontogeny in the viperid Bothrops moojeni, based on a sample of seven individuals.
Paula Araújo   +2 more
wiley   +1 more source

Mitochondrial genome of the shorthead catfish (Pelteobagrus eupogon): structure, phylogeny, and intraspecific variation

open access: yesGenetics and Molecular Research, 2016
The complete 16,532-nucleotide sequence of the mitochondrial genome of the shorthead catfish (Pelteobagrus eupogon) was determined using the long and accurate polymerase chain reaction method, and compared with the mitochondrial genome sequences of 49 other catfish species belonging to the order Siluriformes.
R-Q, Wang, D-Z, Wang, C-T, Li, X-R, Yang
openaire   +2 more sources

A Community-Based Framework Integrates Interspecific Interactions into Forest Genetic Conservation

open access: yesPlants
Forest genetic conservation is typically species-specific and does not integrate interspecific interaction and community structure. It mainly focuses on the theories of population and quantitative genetics.
Xi Wang   +5 more
doaj   +1 more source

Early stages of tooth development in the harbor porpoise Phocoena phocoena

open access: yesThe Anatomical Record, EarlyView.
Abstract Here we describe the stages of tooth development in toothed whales on the basis of the harbor porpoise (Phocoena phocoena). The aim of the study was to find out whether these stages are identical to those of other mammals analyzed so far although toothed whales are homodont and monophyodont.
Lasse M. Mathes   +2 more
wiley   +1 more source

Endogenous and exogenous constraints in the population changes of wild boar (sus scrofa Linnaeus, 1758) [PDF]

open access: yes, 2004
The population dynamics of wild boar (Sus scrofa) was studied in a time series over 26 years using data from the Regional Hunting Reserve of Somiedo (northern Spain).
Nores, Carlos, Uzal Fernandez, Antonio
core  

Early evolution of the gular musculature and its innervation in ray‐finned fishes

open access: yesThe Anatomical Record, EarlyView.
Abstract Gular muscles are an important but often overlooked component of cranial anatomy in bony fishes. They are located on the ventral surface of the head and are derived from the mandibular and hyoid arches. We present a comprehensive review of the gular musculature and its innervation across early diverging actinopterygian lineages. By integrating
Aléssio Datovo   +4 more
wiley   +1 more source

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