Results 61 to 70 of about 1,995 (225)

Host defense triggers rapid adaptive radiation in experimentally evolving parasites

open access: yesEvolution Letters, Volume 3, Issue 2, Page 120-128, April 2019., 2019
Abstract Adaptive radiation occurs when the members of a single lineage evolve different adaptive forms in response to selection imposed by competitors or predators. Iconic examples include Darwin's finches, Caribbean anoles, and Hawaiian silverswords, all of which live on islands.
Sarah E. Bush   +5 more
wiley   +1 more source

Chaetotaxy of three nymphal instars of an ischnoceran louse, Aegypoecus perspicuus (Phthiraptera: Insecta) [PDF]

open access: yes, 2012
The present study on three nymphal instars of Aegypoecus perspicuus indicated that these differ from each other not only an size, abdominal segmentation, chitinization but also in the number of setae occurring on head, thorax and abdomen.
Agarwal, G. P.   +5 more
core   +2 more sources

Feather holes of rock ptarmigan are associated with amblyceran chewing lice

open access: yesWildlife Biology, Volume 2017, Issue SP1, Page 1-8, 2017., 2017
Feather holes have traditionally been suggested to be feeding traces of chewing lice (mallophagans). There is controversy whether mallophagans are the real source of feather holes. We studied mallophagan infestations and holes in tail feathers of 528 rock ptarmigan Lagopus muta collected 2007–2012 in northeast Iceland.
Ute Stenkewitz   +3 more
wiley   +1 more source

Countdown to 2010: Can we assess Ireland’s insect species diversity and loss? [PDF]

open access: yes, 2010
peer-reviewedThe insects are the most diverse organisms on this planet and play an essential role in ecosystem functioning, yet we know very little about them.
McCormack, Stephen   +4 more
core   +1 more source

River barriers and cryptic biodiversity in an evolutionary museum

open access: yesEcology and Evolution, Volume 3, Issue 3, Page 536-545, March 2013., 2013
We find strong genetic evidence that the Congo River has served as a barrier to both birds and their ectoparasitic lice. Our results indicate that contemporaneous, Pleistocene lineage diversification has occurred across the Congo River. Abstract The Riverine Barriers Hypothesis (RBH) posits that tropical rivers can be effective barriers to gene flow ...
G. Voelker   +9 more
wiley   +1 more source

Effects of Habitat and Human Activities on Species Richness and Assemblages of Staphylinidae (Coleoptera) in the Baltic Sea Coast

open access: yesPsyche: A Journal of Entomology, Volume 2012, Issue 1, 2012., 2012
In 2009, the staphylind fauna was studied in six habitats of the Baltic Sea coast of Schleswig‐Holstein (northern Germany). The following habitats lagoon, sandy beach, shingle beach, primary dune, wooded cliff, and woodless cliff were significantly separated by their species composition.
Ulrich Irmler, Panagiotis Milonas
wiley   +1 more source

Egg shell morphology of an amblyceran louse, Hohorstiella rampurensis (Phthiraptera) infesting ring dove, Streptopelia decaocta [PDF]

open access: yes, 2016
Scanning electron microscopy (SEM) study showed that miniature rice grain like egg shell of Hohorstiella rampurensis was covered by obliquely placed opercular disc. The apophyses were present only on one side of the egg shell.
Gupta, Nidhi   +2 more
core   +2 more sources

Population characteristics of Phthiraptera occurring on Red Whiskered Bulbul (Pycnonotus jocosus) [PDF]

open access: yes, 2010
Two phthirapteran species, Menacanthus eurysternus (Amblycera) and Brueelia sp. (Ischnocera) were recovered from 100 Red Whiskered Bulbuls (Pycnonotus jocosus) during March to December 2006.
Ahmad, Aftab   +4 more
core   +2 more sources

New records of chewing lice (Insecta, Phthiraptera) from birds of southern Brazil, with description of a new species Novos registros de malófagos (Insecta, Phthiraptera) em aves do sul do Brasil, com a descrição de uma nova espécie

open access: yesIheringia: Série Zoologia, 2009
A collection of chewing lice was studied from the Natural History Museum of the Universidade Católica de Pelotas, Rio Grande do Sul, Brazil. Twenty three samples from 16 bird species were examined.
Michel P. Valim   +2 more
doaj   +1 more source

On the origin of Halipeurus heraldicus on Round Island petrels: cophylogenetic relationships between petrels and their chewing lice [PDF]

open access: yes, 2010
Lice phylogenetic relationships have often been used to elucidate host relationships and vice versa. In this study, we investigate the louse genus Halipeurus which parasitizes bird hosts in the families Procellariidae, Hydrobatidae and Pelecanoididae ...
Brown, R.   +4 more
core   +1 more source

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