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High frequency but low impact of brood parasitism by the specialist Screaming Cowbird on its primary host, the Baywing
(Csiro Publishing, 2014-05)
Brood-parasitic cowbirds (Molothrus spp.) exploit the parental care of other species (hosts) that raise their offspring. Parasitism by cowbirds reduces host reproductive success in several ways and quantifying such costs ...
Insights into life history theory: a brood size manipulation on a southern hemisphere species, Tachycineta leucorrhoa, reveals a fast pace of life
(Wiley, 2014-05)
Life history traits exhibit substantial geographical variation associated with the pace of life. Species with a slow pace are expected to invest more in their future/residual reproductive value and are more common at ...
Experimental evidence for an antipredatory function of egg rejection behaviour in a common host of the brood-parasitic shiny cowbird
(Springer, 2016-10)
Abstract: The rejection of foreign eggs is the most effective adaptation against brood parasitism in birds. Many hosts, however, show suboptimal responses towards parasitic eggs, which could reflect a compromise between ...
High fishing intensity reduces females sperm reserve and brood fecundity in a eubrachyuran crab subject to sex and size-biased harvest
(2017)
Size-selective male fisheries may result in sperm limitation whereby the number of sperm is insufficient to fertilize all oöcytes produced by females. In eubrachyuran crabs, females have seminal receptacles for sperm storage ...
Sex-specific environmental sensitivity on the postnatal growth of a sexually size-dimorphic seabird
(Wiley Blackwell Publishing, Inc, 2020-12)
The environment experienced during development is a key factor determining intraspecific variation in postnatal growth. In sexually size-dimorphic species, the larger sex typically grows at a higher absolute rate and ...
Reproduction and brooding of Crepidula argentina, Simone, Pastorino & Penchaszadeh 2000 (Gastropoda: Calyptraeidae)
(Bailey-Matthews Shell Museum, 2001-06)
Crepidula argentina is a protandric hermaphrodite that undergoes complete sex change. Males develop a mature gonad when the shell length is 4 mm. Sex change begíns when shell length is around 8 mm and continues until 11 ...
Female and male rufous horneros eject shiny cowbird eggs using a mental template of the size of their own eggs
(Elsevier Science, 2020-09)
Hosts of interspecific brood parasites often evolve antiparasitic defences, like the recognition and rejection of parasite's eggs. Most hosts use differences in coloration and maculation to discriminate between their own ...
Occurrence of sexual size dimorphism in belostoma elegans (Heteroptera: Belostomatidae)
(American Entomological Society, 2010-02)
Sexual size dimorphism (SSD) is detected in Belostoma elegans for the first time in a multivariate framework. Females are usually bigger than males in Heteroptera species; size is frequently associated with reproductive ...
Effect of ivermectin on the survival and fecundity of Euoniticellus intermedius (Coleoptera: Scarabaeidae)
(Universidad de Costa Rica, 2012)