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A new species of Isoperla (Insecta, Plecoptera) from the Karawanken, with considerations on the Southern Limestone Alps as centers of endemism.

Graf W, Konar M, Murányi D, Orci KM, Vitecek S - Zookeys (2014)

Bottom Line: A new species of the genus Isoperla (Plecoptera, Perlodidae), belonging to the oxylepis species-group is described, and the male mating call is characterized.Its range falls within a small region of the Southern Limestone Alps which is well known to be one endemism-centre of aquatic insects.

View Article: PubMed Central - HTML - PubMed

Affiliation: Institute of Hydrobiology and Aquatic Ecosystem Management, University of Natural Resources and Applied Life Sciences, Max Emanuel-Strasse 17, A-1180 Vienna, Austria.

ABSTRACT
A new species of the genus Isoperla (Plecoptera, Perlodidae), belonging to the oxylepis species-group is described, and the male mating call is characterized. Its range falls within a small region of the Southern Limestone Alps which is well known to be one endemism-centre of aquatic insects.

No MeSH data available.


Related in: MedlinePlus

Oscillograms showing the drumming call of an Isoperlaclaudiae sp. n. male (ambient air temperature 24.2 °C). A oscillogram showing rhythm and amplitude variation patterns of a call B a faster oscillogram of two bi-beats from the second half of the call C variation of interval duration between bi-beats during the call presented in A. Inter-beat intervals were measured from the amplitude peak of one bi-beat to the amplitude peak of the next bi-beat (measured on the same call presented in A).
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Figure 4: Oscillograms showing the drumming call of an Isoperlaclaudiae sp. n. male (ambient air temperature 24.2 °C). A oscillogram showing rhythm and amplitude variation patterns of a call B a faster oscillogram of two bi-beats from the second half of the call C variation of interval duration between bi-beats during the call presented in A. Inter-beat intervals were measured from the amplitude peak of one bi-beat to the amplitude peak of the next bi-beat (measured on the same call presented in A).

Mentions: As it is observable in (Fig. 4A) the male call is a sequence of bi-beats. After an initial crescendo the peak amplitude of bi-beats fluctuate around a constant value. In bi-beats the first beat is of lower amplitude (missing in the low amplitude initial part of the call and sometimes hardly detectable even in the main part of the signal), the second one is of higher amplitude and followed by a long, decaying wave train (Fig. 4B). Inter beat interval within bi-beats varied between 8–20 ms during the call. The interval between bi-beats (or single beats at the initial part) gradually increased during the sequence (except for a short initial part of the sequence where inter beat interval decreases) varying between 230–350 ms (Fig. 4C).


A new species of Isoperla (Insecta, Plecoptera) from the Karawanken, with considerations on the Southern Limestone Alps as centers of endemism.

Graf W, Konar M, Murányi D, Orci KM, Vitecek S - Zookeys (2014)

Oscillograms showing the drumming call of an Isoperlaclaudiae sp. n. male (ambient air temperature 24.2 °C). A oscillogram showing rhythm and amplitude variation patterns of a call B a faster oscillogram of two bi-beats from the second half of the call C variation of interval duration between bi-beats during the call presented in A. Inter-beat intervals were measured from the amplitude peak of one bi-beat to the amplitude peak of the next bi-beat (measured on the same call presented in A).
© Copyright Policy - creative-commons-attribution
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4233392&req=5

Figure 4: Oscillograms showing the drumming call of an Isoperlaclaudiae sp. n. male (ambient air temperature 24.2 °C). A oscillogram showing rhythm and amplitude variation patterns of a call B a faster oscillogram of two bi-beats from the second half of the call C variation of interval duration between bi-beats during the call presented in A. Inter-beat intervals were measured from the amplitude peak of one bi-beat to the amplitude peak of the next bi-beat (measured on the same call presented in A).
Mentions: As it is observable in (Fig. 4A) the male call is a sequence of bi-beats. After an initial crescendo the peak amplitude of bi-beats fluctuate around a constant value. In bi-beats the first beat is of lower amplitude (missing in the low amplitude initial part of the call and sometimes hardly detectable even in the main part of the signal), the second one is of higher amplitude and followed by a long, decaying wave train (Fig. 4B). Inter beat interval within bi-beats varied between 8–20 ms during the call. The interval between bi-beats (or single beats at the initial part) gradually increased during the sequence (except for a short initial part of the sequence where inter beat interval decreases) varying between 230–350 ms (Fig. 4C).

Bottom Line: A new species of the genus Isoperla (Plecoptera, Perlodidae), belonging to the oxylepis species-group is described, and the male mating call is characterized.Its range falls within a small region of the Southern Limestone Alps which is well known to be one endemism-centre of aquatic insects.

View Article: PubMed Central - HTML - PubMed

Affiliation: Institute of Hydrobiology and Aquatic Ecosystem Management, University of Natural Resources and Applied Life Sciences, Max Emanuel-Strasse 17, A-1180 Vienna, Austria.

ABSTRACT
A new species of the genus Isoperla (Plecoptera, Perlodidae), belonging to the oxylepis species-group is described, and the male mating call is characterized. Its range falls within a small region of the Southern Limestone Alps which is well known to be one endemism-centre of aquatic insects.

No MeSH data available.


Related in: MedlinePlus