Results 41 to 50 of about 67,988 (235)

Clutch Abandoning Parasitised Yellow Warblers Have Increased Circulating Corticosterone With No Effect of Past Corticosterone or Differences in Egg Maculation Characteristics

open access: yesFrontiers in Ecology and Evolution, 2022
Parental care can be costly to parents’ fitness. As such, abandonment of the current reproductive attempt may benefit potential future opportunities, maximising lifetime reproductive success.
Antoine V. Turcotte-van de Rydt   +6 more
doaj   +1 more source

Grazing Impact on Brood Parasitism [PDF]

open access: yes, 2015
Anthropogenic land use changes can have tremendous direct and indirect effects on biota. A prevalent land use change in Texas is conversion of land to grazing.
Locatelli, Anthony
core   +1 more source

Assessing the Consequences of Brood Parasitism and Nest Predation On Seasonal Fecundity in Passerine Birds [PDF]

open access: yes, 1995
Brood parasites and nest predators reduce the seasonal fecundity and, hence, the population growth rates of their victims. However, most field studies do not measure directly how parasites and predators decrease seasonal fecundity, but instead measure ...
Grzybowski, Joseph A., Pease, Craig M.
core   +1 more source

Choice of nest attributes as a frontline defense against brood parasitism [PDF]

open access: yes, 2021
Breeding- and nest-site choice is a behavioral strategy often used to counter negative interactions. Site choices before breeding prevent costs of predation and competition but have been neglected in the context of brood parasitism.
Morosinotto C.   +5 more
core   +1 more source

Russet Sparrows spot alien chicks from their nests

open access: yesAvian Research, 2018
Background In coevolutionary interactions between brood parasites and their hosts, host parents are under strong selection to evolve defenses against parasitism.
Juan Huo   +4 more
doaj   +1 more source

Evolution: How Not to Detect a Brood Parasite [PDF]

open access: yesCurrent Biology, 2018
An elegant study on social parasitism in digger wasps quantifies the costs and benefits of kin recognition and shows that recognizing non-kin comes at a cost. This supports 'Crozier's paradox' of why kin recognition genes are unlikely to evolve when rare alleles are selected against.
Bruce E, Lyon, Andrew G, Zink
openaire   +2 more sources

Anti-brood Parasite Defences: The Role of Individual and Social Learning

open access: yes, 2017
In this chapter, we consider the ways in which learning is involved in the antibrood parasitism defences that hosts deploy across the nesting cycle. Brood parasitism varies in space and through time, and hosts have accordingly evolved plastic defences
Justin A. Welbergen   +5 more
core   +1 more source

Azure-winged Magpies breeding in urban areas can effectively reduce the risk of brood parasitism

open access: yesAvian Research
With the ongoing acceleration of global urbanization, an increasingly larger proportion of natural habitats are being transformed and utilized by humans.
Jianping Liu   +3 more
doaj   +1 more source

Brood parasitism, provisioning rates and breeding phenology of male and female magpie hosts [PDF]

open access: yes, 2020
Precioso M, Molina‐Morales M, Sanchez-Tojar A, Avilés JM, Martínez JG. Brood parasitism, provisioning rates and breeding phenology of male and female magpie hosts. Journal of Avian Biology.
Precioso, Marta   +13 more
core   +1 more source

Evidence for adaptive explanations of semelparity in animals

open access: yesBiological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher   +1 more
wiley   +1 more source

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