Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Sharon B. Emerson"'
Autor:
Sharon B. Emerson, Margaret M. Stewart
Publikováno v:
Copeia. 2002:873-877
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fa7b7f9315f871673f7b8c0af95f52d
https://doi.org/10.1643/0045-8511(2002)002[0873:hprfi]2.0.co
https://doi.org/10.1643/0045-8511(2002)002[0873:hprfi]2.0.co
Autor:
Sharon B. Emerson
Publikováno v:
Biological Journal of the Linnean Society. 73:139-151
The fanged frogs of South East Asia (50 species) show remarkable variation in body size, reproductive mode and sexual dimorphism. This study examines the importance of a specialized, primitive trait, relative fang size, in contributing to this divers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2cfe58a96d30f3648775897cad9d1412
https://doi.org/10.1111/j.1095-8312.2001.tb01352.x
https://doi.org/10.1111/j.1095-8312.2001.tb01352.x
Autor:
Sharon B. Emerson, David L. Hess
Publikováno v:
Hormones and Behavior. 39:59-69
Male advertisement vocalization in frogs is known to be one of the energetically most expensive activities of ectothermic vertebrates. Glucocorticoids have marked effects on energy metabolism, and, generally, plasma concentrations of glucocorticoids
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5bb2bf96dec7493572a7993f22c8ce5d
https://doi.org/10.1006/hbeh.2000.1635
https://doi.org/10.1006/hbeh.2000.1635
Publikováno v:
General and Comparative Endocrinology. 114:173-180
The presence/absence of androgen receptors is examined in two sexually dimorphic features of frogs: the nuptial pad and the external oblique muscle. Immunohistochemistry reveals that both males and females possess androgen receptors in these tissues.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e7a1e23b6afb96e5b1bea6949cd45bc
https://doi.org/10.1006/gcen.1999.7251
https://doi.org/10.1006/gcen.1999.7251
Autor:
Philip A. Hastings, Sharon B. Emerson
Publikováno v:
The Quarterly Review of Biology. 73:141-162
Methods of inferring phylogenetic relationships have received an enormous amount of attention in recent years. One missing component in much of this work concerns the analysis of the data being used. Most techniques of phylogenetic inference, includi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ceb9ae9d4095f65bfd572765ecc1c74
https://doi.org/10.1086/420182
https://doi.org/10.1086/420182
Autor:
Sharon B. Emerson, Ryk Ward
Publikováno v:
Zoological Journal of the Linnean Society. 122:537-553
A group of Southeast Asian frogs of the family Ranidae are characterized by a suite of unusual secondary sexual characteristics. Males are larger than females, possess bony odontoid processes (fangs) and have enlarged heads. While all members of this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ae527fbbae415237146e56cc3806de1
https://doi.org/10.1111/j.1096-3642.1998.tb02162.x
https://doi.org/10.1111/j.1096-3642.1998.tb02162.x
Publikováno v:
The Journal of Experimental Zoology. 279:587-596
The fanged frogs of Southeast Asia do not express most of the hormone-dependent secondary sexual characteristics such as thumb pads that are common to other ranid frogs. At the same point in the evolutionary history of the group that these androgen-m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eee2b77f0d642023435005ce28169884
https://doi.org/10.1002/(sici)1097-010x(19971215)279:6<587::aid-jez7>3.0.co
https://doi.org/10.1002/(sici)1097-010x(19971215)279:6<587::aid-jez7>3.0.co
Autor:
Sharon B. Emerson
Publikováno v:
Behavioral Ecology and Sociobiology. 41:227-235
While sperm competition may be a major factor affecting relative testis size in vertebrates as a whole, additional hypotheses have not been given much attention in frogs. This is important because sperm competition is relatively uncommon in frogs and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cde740970325e67693e6f7a11a6614e
https://doi.org/10.1007/s002650050383
https://doi.org/10.1007/s002650050383
Autor:
Sharon B. Emerson
Publikováno v:
Systematic Biology. 45:278-289
There are a number of species of Southeast Asian Rana that are characterized by an unusual suite of sexually dimorphic features and derived reproductive modes. These frogs lack the usual secondary sexual characteristics of ranid frogs: nuptial pads,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f36845d3c1b5ee008da45e2b82874e20
https://doi.org/10.1093/sysbio/45.3.278
https://doi.org/10.1093/sysbio/45.3.278
Autor:
Sharon B. Emerson
Publikováno v:
The American Naturalist. 143:848-869
Some Southeast Asian species of the genus Rana possess an unusual suite of secondary sexual characteristics: fangs, hypertrophied jaw muscles, enlarged heads, and males larger than females. Phylogenetic analysis indicates that these frogs form a mono
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1b8335f6f580782f1036f913edcb860d
https://doi.org/10.1086/285636
https://doi.org/10.1086/285636