Results 31 to 40 of about 96,797 (305)
Breeding Enhancement of Musca domestica L. 1758: Egg Load as a Measure of Optimal Larval Density
The amount of waste produced by the population creates general health problems in terms of public health and hygiene. In recent years the common housefly (Musca domestica L.
Idriss Hamidou Leyo +4 more
doaj +1 more source
IVF, same-sex couples and the value of biological ties [PDF]
Ought parents, in general, to value being biologically tied to their children? Is it important, in particular, that both parents be biologically tied to their children? I will address these fundamental questions by looking at a fairly new practice within
Di Nucci, Ezio
core +1 more source
Anti-aphrodisiac compounds of male butterflies increase the risk of egg parasitoid attack by inducing plant synomone production [PDF]
During mating in many butterfly species, males transfer spermatophores that contain anti-aphrodisiacs to females that repel conspecific males. For example, males of the large cabbage white, Pieris brassicae (Lepidoptera: Pieridae), transfer the anti ...
Fatouros, N.E. +7 more
core +2 more sources
Reproductive conflicts and egg discrimination in a socially polymorphic ant [PDF]
The ability to discriminate against competitors shapes cooperation and conflicts in all forms of social life. In insect societies, workers may detect and destroy eggs laid by other workers or by foreign queens, which can contribute to regulate reproductive conflicts among workers and queens.
Meunier, Joël +2 more
openaire +2 more sources
Molecular characterization of Salmonella Enteritidis : comparison of an optimized multi-locus variable-number of tandem repeat analysis (MLVA) and pulsed-field gel electrophoresis [PDF]
Salmonella Enteritidis (SE) is a genetically homogenous serovar, which makes optimal subtype discrimination crucial for epidemiological research. This study describes the development and evaluation of an optimized multiple-locus variable number tandem ...
Bertrand, Sophie +9 more
core +2 more sources
Host Sex Discrimination by an Egg Parasitoid on Brassica Leaves
Egg parasitoids are able to find their hosts by exploiting their chemical footprints as host location cues. In nature, the apolar epicuticular wax layer of plants that consists of several classes of hydrocarbons serves as the substrate that retains these contact kairomones. However, experiments on chemical footprints generally have used filter paper as
Lo Giudice, Daniela +4 more
openaire +3 more sources
Most studies exploring abilities of hosts to detect brood parasitism are based on detecting colour and/or pattern differences among parasitic and host eggs or nestlings, while only few were focused on size differences. True recognition and recognition by
Jinmei Liu +3 more
doaj +1 more source
Rumen fluke in Irish sheep: prevalence, risk factors and molecular identification of two paramphistome species [PDF]
peer-reviewedBackground Rumen flukes are trematode parasites found globally; in tropical and sub-tropical climates, infection can result in paramphistomosis, which can have a deleterious impact on livestock. In Europe, rumen fluke is not
Lawlor, Kim +5 more
core +1 more source
The existence of a coevolutionary process between avian brood parasites and their hosts predicts a lower intra-clutch variation in egg appearance of host eggs among rejecters as this would favor egg discrimination of parasite eggs by hosts once parasitic
Mercedes Molina-Morales +6 more
doaj +1 more source
Brood parasitized and/or colonial birds use egg features as visual identity signals, which allow parents to recognize their own eggs and avoid paying fitness costs of misdirecting their care to others' offspring.
Jesús Gómez, Oscar Gordo, Piotr Minias
doaj +1 more source

