Species sex distribution. Medical search. Frequent questions

2019) demonstrated that it is the sister species of the world's smallest flightless bird, the Inaccessible Island rail Laterallus rogersi (previously placed in the monotypic genus Atlantisia) and should bear the binomial Laterallus spilopterus, which was supported by Kirchman et al. (wikipedia.org)
The genus Hyphessobrycon Durbin includes more than 100 valid species, occurring from Mexico and Central America to the Mar Chiquita Lagoon in Buenos Aires, Argentina and reaching its highest richness in the Amazon basin (Lima et al . (scielo.br)
During field trips to tributaries of the Uruguay River in Entre Ríos province, Argentina, the authors collected a new species of Hyphessobrycon that presents unique characters among the members of the genus. (scielo.br)
With this, the number of recognized species in the genus is increased to 15. (amnh.org)
This genus of plants, closely related to Senna , includes several species that aid in the growth and development of the cloudless sulphur butterfly. (whatsthatbug.com)
Type species: Hatteria punctata GRAY 1842 is the type species of the genus Sphenodon GRAY 1872 (nomen emendatum et conservatumg, Opinion 455, ICZN 1957, non Sphenodon LUND 189, a genus of fossil mammal). (reptarium.cz)

1992) studied redpolls at Churchill, Manitoba using a character index, and found only one statistically significant age-related plumage difference (aside from the obvious red/pink breast of adult males) - flank streaking on adult males was lighter than on any other age/sex class. (sibleyguides.com)
The only other species in which males have oval teeth at the tip of the lower jaw is Longman's beaked whale. (duke.edu)

The species are clearly illustrated in over 154 plates, showing plumage variation between sexes, seasons and age classes, as well as the upper side and underside of birds in flight. (fatbirder.com)

1,800+ colour illustrations, including drawings of birds in flight, showing the principal characteristics which allow the identification of the sex and age of different species. (lynxeds.com)
A dichotomous key of Fragaria species growing in China was prepared, considering runner branching, leaflets, sex, fruit characteristics, as well as presence of hairs on petioles, runners and peduncles. (ishs.org)

Significant differences were found between the species in the case of Cd and Zn concentrations. (unboundmedicine.com)
In general, there were highly significant differences among the storage conditions from accumulation the selected trace elements and metallothionein in both species point of view, but in most cases, no significant differences could be observed among the fresh, refrigerated and frozen specimens of P. semisulcatus. (unboundmedicine.com)
Highly significant differences between the sexes in Cu and Zn contents could be detected. (unboundmedicine.com)
The differences between the sexes in the levels of Zn and Cu were significantly greater in P. semisulcatus. (unboundmedicine.com)
Highly significant size-related differences were found in the levels of Cd, Cu and metallothionein in the selected tissues of the shrimp species. (unboundmedicine.com)
Sulphotransferaseーmediated activation of the carcinogen 5ーhydroxyーmethylchrtsene,Species and sex differences in tissue distribution of the enzyme activity and a possible participation of hydroxysteroid sulphotransforases. (nii.ac.jp)
Species differences in metabolic activation and inactivation of 1ーnitropyrene in the liver. (nii.ac.jp)
to seek clarification, and then I did my own examination of the scientific literature about sex differences in humans, including influential books and essays about the "fluidity" of sex and gender. (dissidentvoice.org)
Irrespective of the genetic, metabolic, biological and environmental circumstances in which a minority of individuals cannot unambiguously be attributed with a physiological sex that is unambiguously either male or female, there is without a doubt a male/female binary in humans, across time (history) and space (locality), where the male or female sexes correspond to distinct sets or groupings of physiological differences. (dissidentvoice.org)
Variability in the said physiological differences, and border uncertainty about which physiological attributes contribute to resolving sex, are not valid reasons to deny that there is a clear male/female bimodal distribution of a (variable) set of (variable) physiological attributes, fundamentally linked to natural reproduction. (dissidentvoice.org)
however, the ecological and evolutionary factors underlying these differences are not well understood, in part because most comparative investigations have focused on only two species. (biorxiv.org)
We find strong species differences in behavior that are associated with microhabitat, demonstrate that intermediate microhabitats are associated with higher levels of exploratory behavior, show that patterns of behavioral covariation across contexts are characteristic of modular complex traits, and contrast Malawi cichlid data with behavioral data from selectively bred high-and low-exploratory zebrafish. (biorxiv.org)
Taken together, our results tie ecology to species differences in behavior, and highlight Lake Malawi cichlids as a powerful system for understanding the evolution, ecology, and biology of natural behavioral variation. (biorxiv.org)
Furthermore, different behavioral assays and testing parameters have been used across studies, making it difficult to identify organizing principles that explain species differences in behavior. (biorxiv.org)

The worldwide taxonomic systems agree that the species is monotypic. (wikipedia.org)
The taxonomic placement of this species (indeed the group of species of which it is a member) is currently in something of a flux. (planetcatfish.com)

Many species are shown in several specimens to illustrate the colour variation. (nhbs.com)
No intraspecific variation was found, including between Eurasian and North American populations, among shallow and deep morphotypes of D. bugensis and between the sexes. (unboundmedicine.com)
We investigate behavioral variation across species, across microhabitats, and across environmental contexts. (biorxiv.org)
There was some variation within several Fragaria species. (ishs.org)
Competing causes of mortali- or all of the animal species tested genetic variation, health status, life ty may prevent the development of experimentally. (who.int)

Here, we argue that the steroid sensitivity of the kiss1 or kiss2 neurons has been well conserved during evolution among tetrapods and teleosts, and thus it may be the key to understanding the functional homologies of certain populations of kisspeptin ( kiss1 or kiss2 ) neurons among different species of vertebrates. (frontiersin.org)
On the other hand, the kisspeptin neurons in certain brain nuclei show steroid sensitivity in all the animal species thus far examined across teleosts and tetrapods. (frontiersin.org)
Therefore, we may be able to correlate the functional properties of the different populations of kisspeptin neurons in various species by using the sex steroid sensitivity as more physiological criteria. (frontiersin.org)
To understand the parallel evolution of these genes in the kisspeptin neuronal systems, we here propose that the steroid sensitivity helps to identify the functionally equivalent neuronal populations among different species, because the steroid sensitivity appears to be the evolutionarily well conserved feature of certain populations of the kisspeptin neurons. (frontiersin.org)
As will be argued below, the non-mammalian kisspeptin systems show a wealth of diversity of gene expression ( kiss1 and/or kiss2 ) pattern in the brain and dynamic changes in expression according to the sex steroid milieu. (frontiersin.org)

This courser is widespread in South Asia and overlaps with some other species such as the similar looking cream-colored courser . (wikipedia.org)
Widespread male/female division is consistent with the reproductive function being distributed in the human species, or at least having the intrinsic possibility of being distributed. (dissidentvoice.org)

That environmental factors - including culture and the violence or authoritativeness of the local social dominance hierarchy - affect both natural reproduction and the said set of sex-differentiating physiological attributes does nothing to invalidate the sex binary in human society. (dissidentvoice.org)

For example, fields such as ecology often use terrain attributes as predictors for species distribution models (Franklin, 1995;Ironside et al. (researchgate.net)
1959). Some Aspects of the Taxonomy, Ecology, and Distribution of the Tardigrades with Emphasis of the Tardigrades of East Central Illinois. (iwu.edu)

For gynodioecious plant species (both female and hermaphroditic plants in some populations), the establishment and success of females holds the key to our understanding of the evolution of separate sexes. (confex.com)
We used a T-RFLP database approach to identify AMF species present on roots and compared species composition and richness between populations with or without females present. (confex.com)
We found that plants within sexually dimorphic populations harbored lower overall AMF species richness in their roots than those of all-hermaphrodite populations. (confex.com)
But most of the infectious diseases that devastate human populations have their roots in wild species, and many pathogens are maintained silently by local wildlife communities before spillover to humans occurs. (cdc.gov)

Fig. 5: Divergence of sex chromosome and rSBG duplication across animal groups. (nature.com)
It is well established from the fossil record and phylogeographic analyses that late Quaternary climate fluctuations led to substantial changes in species' distribution, but whether and how these fluctuations resulted in phenotypic divergence and speciation is less clear. (datadryad.org)
In a biogeographic system (the Australian Wet Tropics, AWT) with a well-established history of refugial isolation during Pleistocene glacial periods, we test whether climate-mediated changes in distribution drove genetic and phenotypic divergence in the rainforest frog, Cophixalus ornatus. (datadryad.org)
Divergence in mating call, and contact zone analyses, suggest that the lineages now represent distinct species. (datadryad.org)

2016 found genetic evidence that B. sigma may be a valid species along the Pacific versant of Mexico. (reptarium.cz)
2016. Distribution Notes. (reptarium.cz)

The long-term undifferentiation of molluscan sex chromosomes is potentially sustained by the unexpected intertwined regulation of reversible sex-biased genes, together with the lack of sexual dimorphism and occasional sex chromosome turnover. (nature.com)
The pleiotropic constraint of regulation of reversible sex-biased genes is widely present in ancient homomorphic sex chromosomes and might be resolved in heteromorphic sex chromosomes through gene duplication followed by subfunctionalization. (nature.com)
The evolutionary dynamics of sex chromosomes suggest a mechanism for 'inheritance' turnover of sex-determining genes that is mediated by translocation of a sex-determining enhancer. (nature.com)
On the basis of whole-transcriptome analyses, we identify many genes that are expressed in a sex- or life stage-specific manner and characterize the transcriptional landscape of a morphological region with unique biological adaptations, namely, bacillary band and stichosome, found only in whipworms and related parasites. (nature.com)
We resolve chromosomal sequences and infer sex chromosome-specific parasite genes and new potential drug targets. (nature.com)

Seasonal case distribution was bimodal, with peaks of cases in spring and winter. (who.int)

Species Lists of Birds for South American Countries and Territories. (wikipedia.org)
Here, we profile eight genomes of the bivalve mollusc family of Pectinidae in a phylogenetic context and show 350 million years sex-chromosome homomorphy, which is the oldest known sex-chromosome homomorphy in the animal kingdom, far exceeding the ages of well-known heteromorphic sex chromosomes such as 130-200 million years in mammals, birds and flies. (nature.com)
Combining this with Troy's similar finding that redpolls form a continuum from pale to dark, and Troy's data showing that intermediate-colored birds were also intermediate in skeletal measurements, implies that observers should expect to find lots of intermediate birds that cannot be confidently assigned to a species. (sibleyguides.com)
PETER SPIERENBURG 2005 Birds in Bhutan - status and distribution. (dutchbirding.nl)
As a result, the information about the status and distribution of birds has increased dramatically in recent times. (dutchbirding.nl)
Distribution maps provide an at-a-glance view of where and when the birds can be found. (fatbirder.com)
Covers 540 species of European birds, including breeding, migrant and wintering birds. (lynxeds.com)
So in our recent study, we were interested in finding out the roles of different species of wild birds that may be involved in the natural maintenance cycle of the Lyme disease ticks and the Lyme disease pathogens. (cdc.gov)

S. flexneri is the predominant species in low-income countries and in international travellers returning to the USA [4]. (cdc.gov)
1,2 In Mainland China, there are two predominant species of Hantavirus, Hantaan and Seoul virus, and either or both species may circulate in a given area. (who.int)

Highly respected and experienced aquarist, Pam has visited cichlid habitats around the world, and bred in her's and her husband Gary fish house hundreds of cichlid species. (cichlidae.com)
The maps are small and I suspect that insufficient surveying has been done to ensure their total accuracy but good enough to tell which of the main habitats are likely to hold target species. (fatbirder.com)
Concise and accurate texts detailing the most important features of plumage, calls, songs and the habitats of each species. (lynxeds.com)

However, little is known about the taxonomy, species limits, and distribution of its closest relatives, because no generic revision has ever been undertaken. (amnh.org)

This hummingbird has a wide distribution across Central and South America. (hummingbirdsplus.org)
Maintaining intact forests throughout Central and South America will be important for the long-term preservation of this beautiful hummingbird species. (hummingbirdsplus.org)
Many of the species covered by the book have a wide distribution in South America. (nhbs.com)

A survey of various species by immunoblot analysis with several antibodies revealed little if any epitope relatedness among microsomal proteins from rats, mice, rabbits, hamsters, squirrel monkeys, guinea pigs, or humans. (nih.gov)

A temporal and spatial study of genetic structure in four species of bladed Bangiales (Rhodophyta) from the southeastern Pacific coast of Chile. (sb-roscoff.fr)
Species identity, genetic diversity, and molecular systematic relationships among the Ziphiidae (beaked whales). (duke.edu)
Genetic studies indicate that the presence of this species in Japan is likely the result multiple human introductions. (turtletimes.com)

A dot-winged crake nest was discovered near Buenos Aires but no details of it or any other aspects of the species' breeding biology are known. (wikipedia.org)

This gene encodes a DEAD box protein, which is a homolog of VASA proteins in Drosophila and several other species. (thermofisher.com)
The gene is specifically expressed in the germ cell lineage in both sexes and functions in germ cell development. (thermofisher.com)

The sexes are alike. (wikipedia.org)

Interestingly, either kiss1 or kiss2 or both have been lost during evolution in many vertebrate species, and the functional significance of kiss1 or kiss2 for the central regulation of reproduction is suggested to vary according to the species. (frontiersin.org)
In this study, we investigate exploratory behavior across 23 species in a previously untested vertebrate system, Lake Malawi cichlid fishes, which comprises hundreds of phenotypically diverse species that have diverged in the past one million years. (biorxiv.org)

The species is closely related to other coursers in the region and are considered to form a superspecies with Cursorius cursor , Cursorius rufus and Cursorius temminckii . (wikipedia.org)

Such distribution across classes occurs and is hormonally driven, in societies and cultures in which the dominance hierarchy does not strictly interfere with reproduction in classes of individuals. (dissidentvoice.org)

The conclusions are that single characters (i.e., dorsum green or brown, or subdermal dark lateral band present or absent) are generally widely distributed, beyond the distribution of the recognised subspecies. (amphibiaweb.org)

Furthermore, additional species of Chlamydiaceae , namely Chlamydia pneumoniae and C. psittaci , have been implicated in trachomatous disease by our group ( 6 ) and by another independent research group from Paris working in Guinea, Africa ( 7 ). (cdc.gov)
Schiøtz has argued that a number of forms from western-southern Central Africa have so many common characters that they should be regarded as belonging to one species H. parallelus . (amphibiaweb.org)
1991. Milnesium tetralamellatum new species of milnesiidae from Africa. (iwu.edu)

1991. Tre nuove specie de Eutardigradi della Groenlandia meridionale. (iwu.edu)

Based on their distribution patterns, some members of this family are believed to be involved in embryogenesis, spermatogenesis, and cellular growth and division. (thermofisher.com)

1998. Evaluation of a secondary sex character in Eutardigrades. (iwu.edu)

Commercial assays do not discriminate among all Chlamydiaceae species that might be involved in trachoma. (cdc.gov)

Contrary to classic theory prediction, sex-chromosome homomorphy is prevalent in the animal kingdom but it is unclear how ancient homomorphic sex chromosomes avoid chromosome-scale degeneration. (nature.com)

Colour distribution maps showing the breeding areas of species. (lynxeds.com)
Colour-coded visual index to quickly find the species in the book. (lynxeds.com)

In parallel, multiple technologies and manual finishing were used to produce an 85-Mb reference genome assembly from the more readily available mouse parasite species T. muris (Online Methods and Supplementary Note ). (nature.com)

Specifically, aerial inventories obtain data on sex and age composition of herds. (rmef.org)
Specifically, we asked: To what extent does AMF community composition and/or species richness predict the presence of females in a population? (confex.com)

Morphology of the male genitalia and pygidia are considered of primary importance as characters for the determination of new species in this descriptive work. (pensoft.net)
FW in male has a costal fold (See detail image ) from base to top of AM, where dark scale tufts lie flat, forming a dark spot, which is absent in similar species. (bugguide.net)
2. C. fractivittana is pretty distinctive by smooth FW pattern in both sexes and slender costal fold in the male. (bugguide.net)
4. Male C. rosaceana almost always have a rudimentary triangular costal fold (all species below lack a costal fold). (bugguide.net)
Dr. Matte has not responded to my written request for clarification about the alleged scientific consensus that there is no male and female in the human species. (dissidentvoice.org)
Leaving questions of self-identity aside, which are largely cultural, it appears that the idea that there is no binary male/female sex divide in humans is simply a vast overstatement of the fact that many other things also occur in the genital and metabolic physiology of a minority of individuals. (dissidentvoice.org)
Sex: Male. (rhinoresourcecenter.com)
The Sex Differential Plasticity hypothesis suggests that females are more likely to establish in stressful environments, where hermaphrodites may allocate more resources to male function thus allowing females to exceed the threshold relative seed fitness they require to invade. (confex.com)

By 1883 the term Cyprinodontidae was in general use for 30 genera and 130 species, as reflected in the work of Jordan and Gilbert. (encyclopedia.com)

Molluscs constitute the second largest, Precambrian-originated animal phylum and have ancient, uncharacterized homomorphic sex chromosomes. (nature.com)

Due to the distinctive habit of forming a cocoon within the shrunken larval body of the host, cocoons of both sexes of the icheneumonid wasp, Hyposoter ebeninus , displayed morphological similarities. (bioone.org)

Species of the spirochete Treponema cause diverse infections in humans. (medscape.com)

Both sexes are equally affected, especially in the pediatric population. (medscape.com)

The genome assemblies and functional annotations of scallop species are also available in the MolluscDB database ( http://mgbase.qnlm.ac/page/download/download ). (nature.com)
The Rhodoexplorer Platform for Red Algal Genomics and Whole Genome Assemblies for Several Gracilaria Species. (sb-roscoff.fr)

The Indian courser ( Cursorius coromandelicus ) is a species of courser found in mainland South Asia , mainly in the plains bounded by the Ganges and Indus river system. (wikipedia.org)
Their distribution is often based on soil conditions, and they are not found where the soil is too hard to dig. (texas.gov)
One common pattern found in gynodioecious species is that females tend to become established in the "harsher" portion of their distribution. (confex.com)

Its type species, K. hibernalis (Hentz, 1842), remains a favorite candidate for studies on spider phylogeny and comparative morphology. (amnh.org)

A fully comprehensive field guide to the 521 officially recorded bird species of Mongolia. (fatbirder.com)

On the basis of these findings, we propose an evolutionary model for the long-term preservation of homomorphic sex chromosomes. (nature.com)
Fig. 6: Evolutionary model for homomorphy maintenance and heteromorphy transition of sex chromosome. (nature.com)
Recent literature on the kisspeptin of non-mammalian species suggests that the kiss1 and kiss2 systems may have undergone such evolutionary processes. (frontiersin.org)

Several authors have regarded some of the forms as full species. (amphibiaweb.org)
2001) has split up part of the forms in this superspecies into 10 full species. (amphibiaweb.org)
2010) suggested that B. c. imperator may be a full species. (reptarium.cz)

Boa constrictor sigma is now considered a valid species by most authors. (reptarium.cz)

Today I was asked how to separate species that look similar to Choristoneura rosaceana and thought I'd share my response here since it is commonly collected and frequently misIDed. (bugguide.net)
Also, some other authors have regarded some of these forms as separate species. (amphibiaweb.org)

Guide to the study and identification of the songs and calls of the most common species. (lynxeds.com)
Species and sex identification by hyperspectral imaging Identifying mosquitoes is important for the prevention of mosquito-borne diseases, effective pest control, and environmental monitoring. (lu.se)

Charlesworth, B. The evolution of sex chromosomes. (nature.com)
Jablonka, E. & Lamb, M. J. The evolution of heteromorphic sex chromosomes. (nature.com)
Daish, T. & Grützner, F. Evolution and meiotic organization of heteromorphic sex chromosomes. (nature.com)

With its distinctive long, forked tail and vibrant green plumage, this species is one of the most recognizable hummingbirds in its range. (hummingbirdsplus.org)
Both sexes have a long narrow bill with serrated edges that is red with blackish culmen and nail. (outdooralabama.com)

In the new ordering the viviparous families did not form a monophyletic group, because some live-bearers turned out to be related more closely to oviparous species than to other live-bearers. (encyclopedia.com)

Our group monitors insect activity with Lidar (Light Detection and Ranging) to assess pollinators' diversity and distribution. (lu.se)

In addition, they provide information on distribution, animal condition, concentration areas, and provide information on other wildlife species observed. (rmef.org)
Many other wildlife species use and benefit from abandoned armadillo burrows. (texas.gov)

Fig. 1: Phylogeny-scale profiling of scallop sexual systems and sex chromosomes. (nature.com)
These findings show that biotic factors could play a role in sexual dimorphism within this species. (confex.com)

Anatomy1

Diseases1

Chemicals and Drugs3

Analytical, Diagnostic and Therapeutic Techniques and Equipment10

Psychiatry and Psychology8

Phenomena and Processes7

Anthropology, Education, Sociology and Social Phenomena4

Information Science2

Named Groups2

Health Care13

Genus6

Males2

Plumage variation1

Characteristics2

Differences14

Taxonomic2

Variation5

Steroid5

Widespread2

Physiological1

Ecology2

Populations4

Divergence4

20162

Genes5

Bimodal1

Birds8

Predominant species2

Habitats3

Taxonomy1

South America3

Various species1

Genetic3

Biology1

Gene2

Alike1

Vertebrate2

Closely related1

Reproduction1

Widely1

Africa3

19911

Patterns1

Secondary1

Assays1

Unclear1

Colour2

Methods1

Composition2

Male8

Genera1

Phylum1

Morphological1

Humans1

Equally1

Genome assemblies2

Found3

18421

Bird species1

Evolutionary3

Full species3

Valid species1

Separate species2

Identification2

Evolution3

Long2

Oviparous1

Detection1

Wildlife2

Sexual2