Results 81 to 90 of about 912 (185)

Mating order and reproductive success in male Columbian ground squirrels (Urocitellus columbianus) [PDF]

open access: yes, 2017
Multiple mating by females is common in many mammalian species, often resulting in mixed paternity litters. In such mating systems, mating order, male age, and male body mass frequently play an important role in determining male reproductive success.
Balmer, Adele   +6 more
core  

Amorous scorpionflies: causes and consequences of the long pairing prelude of Panorpa cognata [PDF]

open access: yes, 2002
Engqvist L, Sauer KP. Amorous scorpionflies: causes and consequences of the long pairing prelude of Panorpa cognata. Animal Behaviour. 2002;63(4):667-675.The scorpionfly Panorpa cognata has a prolonged premating period.
Engqvist, Leif , Sauer, Klaus Peter
core   +2 more sources

The mitochondrial genomes of Panorpidae: sequence, structure and phylogenetic analysis

open access: yes, 2020
Abstract Background: Mitochondrial genomes play a significant role in reconstructing phylogenetic relationships and revealing molecular evolution in insects. However, only two species of Panorpidae have been documented for mitochondrial genomes in Mecoptera to date.Results: We obtained complete mitochondrial genomes of 17 species of Panorpidae.
Yuan Hua   +4 more
openaire   +1 more source

A dataset on the distribution of genus Panorpa (Mecoptera, Panorpidae) in the forest and forest-steppe zones of European Russia

open access: yesActa Biologica Sibirica
Among all insects, the order Mecoptera is the least studied in European Russia. Among this order, the small family Panorpidae stands out, the species of which are found mainly in forest ecosystems. In order to fill this gap, during 2008, 2009, 2011, 2015,
Alexander B. Ruchin   +9 more
doaj   +1 more source

Morphologie und Histologie der Speicheldrüsen der männlichen Skorpionsfliege Panorpa vulgaris Imhoff & Labram (Insecta: Mecoptera, Panorhidae). [PDF]

open access: yes, 2002
Die paarige männliche Speicheldrüse von Panorpa vulgaris (Mecoptera, Panorpidae) wird morphologisch und histologisch beschrieben. Diese Drüse besteht aus je 2-4 blind endenden Drüsenschläuchen. Sie sezernieren das Sekret-Bonbon als Hochzeitgeschenk.
Nahif, Ali Agha
core   +2 more sources

Contribution à l'étude de la géométrie alaire du genre "Calopteryx" (Odonates) [PDF]

open access: yes, 1978
En aquest treball s'ha investigat, la funció de la corba alar tenint com a base la utilització dels punts tangents i perpendiculars que coincideixen amb l'anatomia i els àpexs alars.
Brémond, Jean
core  

Further Evidence for Pre-metamorphosis Larval Eye Reduction in the Holometabola (Insecta: Mecoptera: Panorpa vulgaris Imhoff & Labram, 1836). [PDF]

open access: yes, 2015
Die Larven der Gattung Panorpa weisen eine ungewöhnliche Augenentwicklung auf. Sie besitzen ein aus vielen Linsen bestehendes, komplexaugenähnliches Organ, welches nicht zu einem Teil des späteren Adultauges wird.
Saltin, Brian D.
core   +3 more sources

Death Feigning in Larvae of Scorpionflies (Mecoptera: Panorpidae): Frequency and Postural Changes Based on Larval Instars [PDF]

open access: yes
Death feigning is thought to have evolved primarily as a predator avoidance behavior, and has been reported in 10 of the 31 orders of insects. However, there have been no reports of death-feigning behavior in Mecoptera species.
Ishihara, Ryo   +2 more
core   +1 more source

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