Copulation rate and sperm use by female bearded tits,Panurus biarmicus

1998 ◽  
Vol 56 (5) ◽  
pp. 1199-1204 ◽  
Author(s):  
ANDREAS SAX ◽  
HERBERT HOI ◽  
TIM R BIRKHEAD
Keyword(s):  
Copulation Rate ◽  
Panurus Biarmicus

Food availability reverses the effect of hunger state on copulation rate in Drosophila prolongata females

2020 ◽  
Vol 166 ◽  
pp. 51-59 ◽  
Author(s):  
Yuki Ando ◽  
Toshiki Yoshimizu ◽  
Takashi Matsuo
Keyword(s):  
Food Availability ◽  
Copulation Rate

scholarly journals Copulation rate declines with mating group size in dusky dolphins (Lagenorhynchus obscurus)

2015 ◽  
Vol 93 (6) ◽  
pp. 503-507 ◽  
Author(s):  
D.N. Orbach ◽  
G.G. Rosenthal ◽  
B. Würsig
Keyword(s):  
New Zealand ◽  
Group Size ◽  
Energy Costs ◽  
Indirect Benefits ◽  
Lagenorhynchus Obscurus ◽  
Mating Group ◽  
Copulation Rate ◽  
Mating Opportunities ◽  
Dusky Dolphins ◽  
Time And Energy

Males in polygamous species often engage in intrasexual competition for mates. If females actively evade mating attempts, it may benefit males to cooperate to restrict female movement, as has been found in some mammals. We tested if male dusky dolphins (Lagenorhynchus obscurus (Gray, 1828)) cooperate or compete during group mating chases. If they cooperate, then the per-male probability of copulating should increase with group size; if they compete, then the probability should decrease. We followed mating groups by boat during the breeding season (October 2013 – January 2014) off Kaikoura, New Zealand. The copulation rate per male decreased with increasing group size and with the number of noncopulating males in proximity to a copulating female. Male dusky dolphins have multiple mates and appear to use sperm and exploitative scramble competition. Males may remain in mating groups despite competition because there are alliances within the groups, they are unable to exclude rivals from joining a group, the time and energy costs of searching for unescorted females exceed the costs of reduced mating opportunities in a group, they receive other direct or indirect benefits that offset the costs of reduced mating opportunities, or they are in the group largely for social learning rather than procreation.

Infestation by the mite Harpirhynchus nidulans in the Bearded Tit Panurus biarmicus

Bird Study ◽  
2004 ◽  
Vol 51 (1) ◽  
pp. 34-40 ◽  
Author(s):  
Pierre-Yves Henry ◽  
Brigitte Poulin ◽  
François Rousset ◽  
François Renaud ◽  
Frédéric Thomas
Keyword(s):  
Panurus Biarmicus

Nomenclatural and taxonomic status of bird taxa (Aves) described by an ornithological swindler, Josef Prokop Pražák (1870–1904)

Zootaxa ◽  
2011 ◽  
Vol 3005 (1) ◽  
pp. 45
Author(s):  
JIŘÍ MLÍKOVSKÝ
Keyword(s):  
Parus Major ◽  
Taxonomic Status ◽  
Species Group ◽  
Zoological Nomenclature ◽  
Restricted Type ◽  
Curriculum Vitae ◽  
University Of Edinburgh ◽  
Panurus Biarmicus ◽  
Taxonomic Studies ◽  
The University

Josef Prokop Pražák (1870–1904) published a number of papers from 1894–1900, mainly on faunistics and taxonomy of birds. In the 1890s his faunistic papers were shown to include many fraudulent data and were thus rejected or cited with caution. However, no comprehensive review of Pražák’s new bird taxa was made. My reconstruction of Pražák's Curriculum vitae shows that Pražák spent most of his life in his native Bohemia. In 1893–95 he studied at the Universität Wien, Austria, and volunteered at the Naturhistorisches Hofmuseum, and in 1896–98 he studied at the University of Edinburgh, Scotland. His taxonomic studies are connected with the ornithological collections in Vienna and Edinburgh. Although his contemporaries described Pražák as a charming and talented man, I document that his taxonomic papers include many fraudulent data and that his activities included stealing and relabeling museum specimens. The revision of Pražák's new bird taxa presented here reveals that Remizus and the following species-group names are available for nomenclatural purposes: Aegithalus caudatus japonica (Aegithalidae), Alauda arborea cherneli (Alaudidae), Carduelis elegans alpestris (Fringillidae), Carduelis elegans hortensis (Fringillidae), Carduelis elegans sylvestris (Fringillidae), Erithacus rubecula maior (Turdidae), Lophophanes cristatus brunnescens (Paridae), Lophophanes cristatus scotica (Paridae), Panurus biarmicus raddei (Paradoxornithidae), Parus caeruleus obscurus (Paridae), Parus major newtoni (Paridae), Parus major blanfordi (Paridae), Poecile cincta alascensis (Paridae), Poecile lugubris persica (Paridae), Remizus pendulinus raddei (Remizidae) and Sturnus vulgaris intermedius (Sturnidae). I defined type series for all, and I restricted type localities for most, of these species-group taxa. I synonymized Remizus pendulinus raddei Pražák, 1897g, with Remiz pendulinus pendulinus (Linnaeus, 1758). In addition I found that Vanellus grisescens was described by Grant (1912), not by Pražák, and I synonymized this species with Vanellus chilensis lampronotus (Wagler, 1827). I found that the following names created by Pražák have no standing in zoological nomenclature: Accentor modularis sclateri (hypothetical form), Anthus spipoletta reichenowi (hypothetical form), Scops scops taczanowskii (manuscript name), Trochalopteron hennickei (hypothetical form) and Vanellus grisescens (hypothetical form).

Sign in / Sign up

Export Citation Format

Share Document