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Engystomops
''Engystomops'' is a genus of frogs in the family Leptodactylidae. They are known commonly as foam frogs or túngara frogs, though the latter name most commonly refers to ''Engystomops pustulosus''. They are native to the Americas from southern Mexico south to the Amazon Basin. This genus was maintained on its own until 1970, when it was merged into ''Physalaemus'', a genus of similar frogs. As studies progressed, there was increasing evidence that ''Physalaemus'' was not a monophyletic group; it was made up of several groups. One of those groups consisted of several frogs more closely related to each other than to the rest of the ''Physalaemus'', and they were represented by ''P. pustulosus'', now ''Engystomops pustulosus''. This group was split off in 2005 on the basis of characters such as basic morphology and vocalizations, as well as allozyme and other genetic analysis. The group was given the revalidated name ''Engystomops''. It included two newly described species. Descri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engystomops Petersi
''Engystomops petersi'' (common name: Peters' dwarf frog) is a species of frog in the family Leptodactylidae. It is found in Amazonian Colombia, Ecuador, and Peru. It is morphologically similar to its sibling species, '' Engystomops freibergi'', and for a period the latter was considered to be a junior synonym of ''Engystomops petersi''. Taxonomy and classification of this species is constantly changing due to the continual evolution of behavioral isolation and rapid speciation in the region. There are also records from the Guianas that have not yet been allocated to either species. Divergence of these two species seems to have been driven by behavioural isolation related to male call characteristics more than geographic isolation. Taxonomy The genus ''Engystomops'' is part of the family Leptodactylid. Previously, the genus ''Engystomops'' was grouped in with other Amazonian genera like ''Eupemphix'' and ''Physalaemus.'' These names are routinely exchanged making it hard to chara ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engystomops
''Engystomops'' is a genus of frogs in the family Leptodactylidae. They are known commonly as foam frogs or túngara frogs, though the latter name most commonly refers to ''Engystomops pustulosus''. They are native to the Americas from southern Mexico south to the Amazon Basin. This genus was maintained on its own until 1970, when it was merged into ''Physalaemus'', a genus of similar frogs. As studies progressed, there was increasing evidence that ''Physalaemus'' was not a monophyletic group; it was made up of several groups. One of those groups consisted of several frogs more closely related to each other than to the rest of the ''Physalaemus'', and they were represented by ''P. pustulosus'', now ''Engystomops pustulosus''. This group was split off in 2005 on the basis of characters such as basic morphology and vocalizations, as well as allozyme and other genetic analysis. The group was given the revalidated name ''Engystomops''. It included two newly described species. Descri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engystomops Puyango
''Engystomops'' is a genus of frogs in the family Leptodactylidae. They are known commonly as foam frogs or túngara frogs, though the latter name most commonly refers to ''Engystomops pustulosus''. They are native to the Americas from southern Mexico south to the Amazon Basin. This genus was maintained on its own until 1970, when it was merged into ''Physalaemus'', a genus of similar frogs. As studies progressed, there was increasing evidence that ''Physalaemus'' was not a monophyletic group; it was made up of several groups. One of those groups consisted of several frogs more closely related to each other than to the rest of the ''Physalaemus'', and they were represented by ''P. pustulosus'', now ''Engystomops pustulosus''. This group was split off in 2005 on the basis of characters such as basic morphology and vocalizations, as well as allozyme and other genetic analysis. The group was given the revalidated name ''Engystomops''. It included two newly described species. Descri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engystomops Pustulosus
''Engystomops'' is a genus of frogs in the family Leptodactylidae. They are known commonly as foam frogs or túngara frogs, though the latter name most commonly refers to ''Engystomops pustulosus''. They are native to the Americas from southern Mexico south to the Amazon Basin. This genus was maintained on its own until 1970, when it was merged into ''Physalaemus'', a genus of similar frogs. As studies progressed, there was increasing evidence that ''Physalaemus'' was not a monophyletic group; it was made up of several groups. One of those groups consisted of several frogs more closely related to each other than to the rest of the ''Physalaemus'', and they were represented by ''P. pustulosus'', now ''Engystomops pustulosus''. This group was split off in 2005 on the basis of characters such as basic morphology and vocalizations, as well as allozyme and other genetic analysis. The group was given the revalidated name ''Engystomops''. It included two newly described species. Descri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engystomops Pustulatus
''Engystomops pustulatus'' (common name: Guayaquil dwarf frog) is a species of frog in the family Leptodactylidae. It is known with certainty from western Ecuador, whereas the status of Peruvian records is ambiguous as they may refer to an undescribed species or possibly ''Engystomops puyango''. Nevertheless, given that ''E. pustulatus'' is now known from Huaquillas in southern Ecuador, near the Peruvian border, it is likely to be found in Peru too. Description Adult males measure and adult females in snout–vent length. The snout is rounded. The tympanum is visible and round. Maxillary and premaxillary teeth are present. The fingers have no webbing nor expanded discs. The dorsum is strongly tubercular, with enlarged and somewhat elongated tubercles forming a "ʌ" pattern in the scapular region. The belly is smooth. There is an elongated row of glands on the flank. Habitat and ecology ''Engystomops pustulatus'' inhabits scrub savanna, Pacific tropical forests, and equatori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engystomops Freibergi
''Engystomops freibergi'' is a frog native to the Amazonian Brazil, southeastern Peru, and Amazonian Bolivia. For a while, it was considered to be a synonym of ''Engystomops petersi'', its sibling species, but its species status was resurrected in a study published in 1998. Nevertheless, these two species have also been mixed in later studies, and there are records from the Guianas that have not yet been allocated to either species. Divergence of these two species seems to have been driven by behavioural isolation related to male call characteristics more than geographic isolation. Description ''Engystomops freibergi'' are relatively small frogs. Males measure in snout–vent length and females . Dorsal colouration is variable. Skin on dorsum is warty, bearing small tubercles with scattered larger tubercles. Habitat ''Engystomops freibergi'' is a locally common species found in lowland Amazon rainforest. These frogs are nocturnal and usually found in the leaf litter in primary fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engystomops Coloradorum
''Engystomops coloradorum'', also known as Colorado dwarf frog, is a species of frogs in the family Leptodactylidae. It is endemic to the Pacific lowlands and foothills of the Andes in the Pichincha and Santo Domingo de los Tsáchilas Provinces, Ecuador. Description Adult males measure and adult females in snout–vent length. The snout is subacuminate. The tympanum is small, recessed, and smooth, whereas the tympanic annulus is granular. The forelimbs are slender; fingers are without webbing. The hind limbs are short and the toes have basal webbing. All dorsal surfaces have small tubercles, and there are large tubercles on head and body. The dorsum is brown and may have an orange-brown middorsal stripe posteriorly. The limbs are orange-brown; forelimbs have dark brown markings and hind limbs have dark brown to black bars. The venter is black and heavily mottled with white or bluish white, which becomes dark brown on flanks and hind limbs. The iris is pale grayish brown or d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engystomops Montubio
''Engystomops montubio'' is a species of frog in the family Leptodactylidae. It is endemic to western Ecuador. It inhabits lowland evergreen and semi-deciduous forest and lowland dry shrub. It also inhabits open man-made habitats, such as pastures, near buildings, etc. Breeding takes place in pools during the rainy season. References montubio Montubio is the term used to describe the mestizo people of the countryside of coastal Ecuador. The Montubio make up 7.4% of the country's population and were recognized as a distinct ethnicity by the government in the spring of 2001 after prot ... Amphibians of Ecuador Endemic fauna of Ecuador Taxonomy articles created by Polbot Amphibians described in 2004 {{Leptodactylidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engystomops Randi
''Engystomops randi'' is a species of frog in the family Leptodactylidae. It is endemic to western Ecuador. It inhabits lowland deciduous and semi-deciduous forest and evergreen Costa forest. It also inhabits open man-made habitats, such as pastures, near buildings, and agricultural lands (flooded rice fields, banana plantations). Breeding takes place in small pools during the rainy season. The species makes a floating foam nest. References randi Randi is both a given name, and a nickname in the English language, popular in North America and Norway. It is primarily a feminine name, although there is recorded usage of the name by men. It may have originated as a pet form of '' Miranda'' o ... Amphibians of Ecuador Endemic fauna of Ecuador Taxonomy articles created by Polbot Amphibians described in 2004 {{Leptodactylidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engystomops Guayaco
''Engystomops guayaco'' is a species of frog in the family Leptodactylidae. It is endemic to Ecuador. Its natural habitats are subtropical or tropical dry forests, intermittent freshwater marshes, and irrigated land. It is threatened by habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby .... References Guayaco Amphibians of Ecuador Endemic fauna of Ecuador Taxonomy articles created by Polbot Amphibians described in 2005 {{Leptodactylidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leptodactylidae
The southern frogs form the Leptodactylidae, a name that comes from Greek meaning a bird or other animal having slender toes. They are a diverse Family (biology), family of frogs that most likely diverged from other hyloidea, hyloids during the Cretaceous. The family has undergone major taxonomic revisions in recent years, including the reclassification of the former subfamily Eleutherodactylinae into its own family the Eleutherodactylidae; the Leptodactylidae now number 206 species in 15 genera distributed throughout Mexico, the Caribbean, and Central America, Central and South America. The family includes terrestrial, burrowing, aquatic, and arboreal members, inhabiting a wide range of habitats. Several of the genera within the Leptodactylidae lay their eggs in foam nests. These can be in crevices, on the surface of water, or on forest floors. These foam nests are some of the most varied among frogs. When eggs hatch in nests on the forest floor, the tadpoles remain within the ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sexual Selection
Sexual selection is a mode of natural selection in which members of one biological sex mate choice, choose mates of the other sex to mating, mate with (intersexual selection), and compete with members of the same sex for access to members of the opposite sex (intrasexual selection). These two forms of selection mean that some individuals have greater reproductive success than others within a population, for example because they are more Animal sexual behaviour, attractive or prefer more attractive partners to produce offspring. Successful males benefit from frequent mating and monopolizing access to one or more fertile females. Females can maximise the return on the energy they invest in reproduction by selecting and mating with the best males. The concept was first articulated by Charles Darwin who wrote of a "second agency" other than natural selection, in which competition between mate candidates could lead to speciation. The theory was given a mathematical basis by Ronald F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
