Osteological Studies in the European Water FrogsRana ridibunda, Rana lessonae andRana “esculenta” (Anura, Ranidae)

Böhme, Gottfried; Günther, Rainer

doi:10.1002/mmnz.4830550118

Cited by 7 publications

(12 citation statements)

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“…P. esculentus. The morphological differences mainly lie in the development of the tuber superior, in particular in P. lessonae where this structure is very strong, laterally prominent and relatively steep, developing over the anterior border of the acetabulum (Böhme and Günther 1979). The same conclusions have been raised by Gleed-Owen (1998, 2000 from the study of 20 individuals each of P. ridibundus and P. kl.…”

Section: Discussionsupporting

confidence: 55%

“…P. esculentus. Böhme and Günther (1979) carried out a more extensive study on a modern and sub-fossil material, using biometric methods, which permitted some specific diagnosis. Whereas frontoparietal was found to show significant differences between P. lessonae, P. ridibundus and P. kl.…”

Section: Discussionmentioning

confidence: 99%

“…P. esculentus in his study. From a biometrical point of view, Böhme and Günther (1979) showed that the angle between the main iliac axis and the posterior border of the ilium was distinctive, measuring less than 55°(min/max = 43°to 55°) in P. kl. P. esculentus and P. ridibundus, while in P. lessonae, it is mainly over 55°(min/max = 52°to 58°).…”

Section: Discussionmentioning

confidence: 99%

“…The studied sample includes complete dry disarticulated skeletons from East Germany prepared in 1976 by one of us (see Böhme 1977 andGünther 1979 for more details). This material is stored in the collections of the Museum für Naturkunde (Berlin, Germany).…”

Section: Methodsmentioning

confidence: 99%

“…Measurements have been done as follows: character 1, projected length of ilium on the line that goes from the upper part of the intersection between the acetabulum and the posterior margin and that is tangential to the highest point of the iliac's lower margin (Sanchiz et al 1993; measurement 3 or IL); character 2, angle between the tuber superior and the iliac's main axis (Sanchiz et al 1993; measurement 2 called ANG); character 3, dorsal crest height (measurement 1 or CDH in Sanchiz et al 1993 andmeasurement d in Böhme andGünther 1979); character 4, acetabular diameter (measurement a in Esteban and Sanchiz 1985, measurement b in Böhme and Günther 1979and measurement d in Gleed-Owen 1998, 2000; character 5, corpus thickness at the centre of the acetabulum (measurement a in Böhme and Günther 1979and measurement t in Gleed-Owen 1998, 2000; character 6, 'iliac neck' or smallest thickness of the crest on the corpus (measurement e in Böhme and Günther 1979); character 7, maximum width of the junctura ilioischiadica; and character 8, width of the pars ascendens on the imaginary line that is tangential to the tuber superior's dorsal margin and that crosses the point at the intersection between the upper part of the acetabulum and the posterior edge of the ilia.…”

Section: Methodsmentioning

confidence: 99%

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Variation in the ilium of central European water frogs Pelophylax (Amphibia, Ranidae) and its implications for species-level identification of fragmentary anuran fossils

2015

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Background: In the opinion of all field herpetologists and archaeozoologists, green frogs (living and sub-fossil specimens) are among the most difficult European amphibians to identify. Here, we examine the intra-and interspecific variation in both continuous and discrete iliac characters for refining the criteria for species-level identification among European green frogs Pelophylax ridibundus, Pelophylax lessonae and their associated klepton Pelophylax kl. P. esculentus (Amphibia, Ranidae). Results: A total of 454 ilia of modern green frogs from the former German Democratic Republic have been studied: 168 for P. lessonae (86 of males and 82 of females), 118 for P. ridibundus (44 of males and 74 of females) and 168 for P. kl. P. esculentus (86 of males and 82 of females). The origin, sex, population structure and phenotype are known for each of the studied specimens. Eight variables have been taken (one angle and seven measurements), mainly on the distal part of the element in order to be able to apply them to fragmentary fossil ilia. Interspecific variations, sexual dimorphism and population structure have been investigated. Results suggest that the secure determination of a single fossil ilium at species level is quite impossible, but that at population level, it may be possible to distinguish between a 'pure' species or a 'pure' species plus its cohabiting hybrid form, as some minor differences have been evidenced in particular in the angle of the tuber superior in relation to iliac's main axis (character 2) and the width of the pars ascendens (character 8); two parameters significantly non size-dependent. No sexual dimorphism has been detected, except for P. lessonae. Conclusions: We propose here a new biometrical method in order to differentiate between the fossil ilia of central European water frogs (genus Pelophylax) at population level.

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Section: Discussionsupporting

confidence: 55%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Variation in the ilium of central European water frogs Pelophylax (Amphibia, Ranidae) and its implications for species-level identification of fragmentary anuran fossils

2015

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Neglected native or undesirable alien? Resolution of a conservation dilemma concerning the pool frog Rana lessonae

Beebee

Buckley²,

Evans

et al. 2005

Biodivers Conserv

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Introduced species often pose serious threats to biodiversity, but occasionally confusion arises as to whether a species really is introduced or is in fact an overlooked native. A recent UK conservation dilemma has centred on the status of the pool frog Rana lessonae. This species has been the subject of documented introductions from central and southern Europe since the early 1800s, the accepted position being that all UK R. lessonae populations are descended from these introductions. However, a closer examination of early UK literature sources, and recent discoveries of isolated, native R. lessonae populations in Sweden and Norway, led some herpetologists to question whether the species was in fact present as a native at some locations prior to the introductions. Research was initiated along four major lines of enquiry: genetic, bioacoustic, archaeozoological and archival. A high degree of convergence among the genetic and bioacoustic investigations demonstrated that the potentially native UK pool frogs were closely related to Scandinavian frogs, thus ruling out introductions from further south as a potential origin. Subfossil evidence of pool frogs was found from ca. 1000 years before present, demonstrating that the species occurred in the UK prior to known introductions. Archival sources produced no historical support for introductions from northern Europe. The postglacial history inferred for these northern populations is consistent with the known climatic and geographical conditions. Taken together, the evidence for the native status of the pool frog is compelling, and furthermore the UK population appears to be part of a distinct northern clade.Abbreviations: bp -before present; LGM -Late Glacial Maximum; mtDNA -mitochondrial DNA; RAPD -Randomly Amplified Polymorphic DNA.

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Some archaeoherpetological remains from the Netherlands

Glastra¹

1983

Journal of Archaeological Science

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Osteological Studies in the European Water FrogsRana ridibunda, Rana lessonae andRana “esculenta” (Anura, Ranidae)

Cited by 7 publications

References 1 publication

Variation in the ilium of central European water frogs Pelophylax (Amphibia, Ranidae) and its implications for species-level identification of fragmentary anuran fossils

Variation in the ilium of central European water frogs Pelophylax (Amphibia, Ranidae) and its implications for species-level identification of fragmentary anuran fossils

Neglected native or undesirable alien? Resolution of a conservation dilemma concerning the pool frog Rana lessonae

Some archaeoherpetological remains from the Netherlands

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