scholarly journals Small fish (Leucaspius delineatus) that are often released into garden ponds and amphibian breeding sites prey on eggs and tadpoles of the common frog (Rana temporaria)

2009 ◽  
Vol 30 (2) ◽  
pp. 290-293 ◽  
Author(s):  
Beatrice Lüscher ◽  
Benedikt Schmidt ◽  
Thomas Leu ◽  
Silvia Zumbach
Keyword(s):  
Rana Temporaria ◽  
Native Fish ◽  
Small Fish ◽  
Common Frog ◽  
Breeding Sites ◽  
Amphibian Larvae ◽  
Frog Rana Temporaria ◽  
The Common ◽  
Diet Analyses ◽  
Eggs And Larvae

AbstractNon-native fish often negatively affect amphibian populations. The sunbleak (Leucaspius delineatus), a small cyprinid fish, is often released into ponds that support amphibian populations because it is thought not to consume amphibian larvae; the argument was based on diet analyses. Here, we present results from a laboratory experiment that demonstrates that sunbleak consume amphibian eggs and larvae. Mortality of eggs and small tadpoles was 100%. Thus, sunbleak at least potentially could be harmful to amphibian populations despite their preference for small prey items reported in the literature. Although diet analyses are valuable, the assessment of whether a species is a predator of another should not be based solely on diet analyses. Experimental predation trials are necessary to assess predation risk.

scholarly journals Present distribution of the common frog, Rana temporaria and the moor frog, R. arvalis (Amphibia, Anura) in the “old” Moscow

2021 ◽  
Vol 21 (1/2) ◽  
pp. 55-62
Author(s):  
A. B. Petrovskiy ◽  
◽  
A. A. Shpagina ◽  
A. A. Kidov ◽  
◽  
...  
Keyword(s):  
Rana Temporaria ◽  
Common Frog ◽  
Natural Areas ◽  
Breeding Sites ◽  
Specially Protected Natural Areas ◽  
Frog Rana Temporaria ◽  
Protected Natural Areas ◽  
Present Distribution ◽  
The Common ◽  
Moor Frog

The common frog (Rana temporaria) and the moor frog (R. arvalis) lived in all green areas of Moscow until the end of the 20th century. The reduction in the area of woody vegetation, the destruction of breeding sites and introduction of the invasive fish Perccottus glenii contributed to the extinction of these amphibians in most of the city. The paper provides information on the distribution of brown frogs in Moscow based on the results of monitoring in 2020. R. temporaria was found in 37 localities in the Northwestern (6 points), Northern (3 points), Northeastern (1 point), Eastern (9 points), Southeastern (1 point), Southern (5 points), Southwestern (5 points) and Western (7 points) administrative districts. Eleven finds (29.7%) are located outside of specially protected natural areas. Most of the species’ habitats (30 points, or 81.1%) are isolated from other populations. R. arvalis was found in 14 localities in the Northwestern (3 points), Northern (3 points), Eastern (4 points), Southwestern (1 point) and Western (3 points) administrative districts of Moscow. Of all the finds noted, three ones (21.4%) are located outside of specially protected natural areas. The vast majority of the habitats of the species (10 points, or 71.4%) are isolated.

Predation-induced effects on hatchling morphology in the common frog (Rana temporaria)

2001 ◽  
Vol 79 (5) ◽  
pp. 926-930 ◽  
Author(s):  
Anssi Laurila ◽  
Pierre-André Crochet ◽  
Juha Merilä
Keyword(s):  
Life History ◽  
Early Life ◽  
Rana Temporaria ◽  
Morphological Changes ◽  
Early Life History ◽  
Life Stages ◽  
Common Frog ◽  
Amphibian Larvae ◽  
Frog Rana Temporaria ◽  
The Common

As mortality due to predation is often high at early independent life stages in many animals, it can be expected that predation-induced modifications of early life history and morphology will be common when predation risk varies spatially or temporally. However, studies of such effects are still rare. Predation-induced changes in life history and morphology have often been described in amphibian larvae, but the focus has been on older larvae and little is known about responses of hatchlings or very young larvae. We examined whether predator presence influenced timing of hatching and hatchling morphology in the common frog, Rana temporaria. In a paired design, eggs from 10 clutches were allowed to develop from fertilization to hatching, with or without the nonlethal presence of a larva of the large diving beetle Dytiscus marginalis. We found no evidence that predator presence affected timing of hatching. However, hatchlings raised in the presence of the predator had relatively shorter bodies and deeper tail fins than their full-sibs raised in the absence of the predator, indicating that predation induces morphological responses in R. temporaria hatchlings. This is one of the very few studies showing that predators, or chemical cues released during a predation event, can induce a plastic morphological changes in vertebrates at very early life stages.

Small woods positively influence the occurrence and abundance of the common frog (Rana temporaria) in a traditional farming landscape

2015 ◽  
Vol 36 (4) ◽  
pp. 417-424 ◽  
Author(s):  
Alexandre Boissinot ◽  
Pierre Grillet ◽  
Aurélien Besnard ◽  
Olivier Lourdais
Keyword(s):  
Western Europe ◽  
Rana Temporaria ◽  
Common Frog ◽  
Traditional Farming ◽  
Critical Determinant ◽  
Southern Margin ◽  
Frog Species ◽  
Frog Rana Temporaria ◽  
The Common ◽  
Extensive Farming

Traditional farming landscape in western Europe is made of a complex mosaic of pastures, cultures, ponds and hedgerows connected with woods. Previous observations in the common frog species suggest that lowland populations are closely associated to wood cover and our aim was to test the validity of this assumption. We studied common frog occurrence and abundance in western central France (Deux-Sèvres department) close to the southern margin of lowland distribution. Our results pointed out that the proportion of woods surface around sampled areas (1 ha) was a critical determinant of common frog presence and abundance. Extensive farming, which maintains a mosaic of small woods, may provide a robust conservation tool for this species.

scholarly journals VIII. On the structure and development of the skull of the common frog ( Rana temporaria , L.)

1871 ◽  
Vol 161 ◽  
pp. 137-211 ◽  
Keyword(s):  
Rana Temporaria ◽  
The Other ◽  
Common Frog ◽  
Frog Rana Temporaria ◽  
The Subject ◽  
The Common ◽  
Working Out

Since the sending in of my last communication, that on the Skull of the Fowl, our knowledge of the morphology of the facial arches has been very greatly extended by Professor Huxley’s invaluable paper “On the Representatives of the Malleus and the Incus of the Mammalia in the other Vertebrata” (see Proc. Zool. Soc. May 1869, pp. 391-407). After comparing the components of the mandibular and hyoid arches in an extended series of vertebrate types, the author concludes his paper by saying (p. 406), “in the higher Amphibia changes of a most remarkable kind take place, of which I do not now propose to speak, as my friend Mr. Parker is engaged in working out that part of the subject.”

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