Results 61 to 70 of about 126,453 (209)
Wildlife Letters, EarlyView.Common cuckoo nestlings from different populations show varying degrees of mimicry of warbler begging calls, with the Yongnianwa population being the most accurate and the Zhalong population the least. Overall, these cuckoos employ a dual strategy: they conservatively mimic the high‐frequency components of host calls while adaptively adjusting their ...
Jiaojiao Wang, Lumeng Xu, Canchao Yang
wiley +1 more source
Nest sanitation as the evolutionary background for egg ejection behaviour and the role of motivation for object removal. [PDF]
PLoS ONE, 2013 Higher interclutch colour variation can evolve under the pressure of brood parasitism to increase the detection of parasitic eggs. Nest sanitation could be a prerequisite for the evolution of anti-parasite defence in terms of egg ejection.
Miroslav Poláček +3 more
doaj +1 more source
When is the bait worth the risk? A mechanistic model of a compensatory ecological trap in seabirds
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Ecological traps occur when organisms preferentially select habitats that reduce fitness. In seabird–fishery systems, fishery‐derived trophic subsidies can increase foraging success, reinforce habitat preference and indirectly enhance reproductive output or recruitment,
Cristóbal Anguita +2 more
wiley +1 more source
Use of social over personal information enhances nest defense against avian brood parasitism
, 2011 Interactions with conspecifics influence the behavioral repertoire of an organism, as they apply to foraging techniques, song acquisition, habitat selection, and mate choice.
Sealy, GS +3 more
core +1 more source
Functional variation in butterfly egg pore traits: The potential role of climate
Functional Ecology, EarlyView.Read the free Plain Language Summary for this article on the Journal blog. Abstract Immobile eggs of terrestrial animals are exposed to variable environmental conditions. Insect egg pores, critical for gas exchange (aeropyles) and fertilisation (micropyles), are ecologically important yet understudied.
Teun de Jong +4 more
wiley +1 more source
Breeding Biology of Grassland Birds in Western New York: Conservation and Management Implications
Avian Conservation and Ecology, 2010 Declining grassland breeding bird populations have led to increased efforts to assess habitat quality, typically by estimating density or relative abundance.
Christopher J. Norment +2 more
doaj +1 more source
Behavioural and physiological responses to brood parasitism and nest predation in two passerine species [PDF]
, 2017 Brood parasitism and nest predation are two of the most important selective pressures in birds, particularly in altricial species, which are the species whose nestlings, being born unfeathered, blind and helpless, must be cared by parents.
Roncalli, Gianluca
core
Integrative Zoology, EarlyView.The relationship between the position of a flea species in the networks and its functional originality was found to be consistently positive in all realms, independently of which originality index was used. ABSTRACT We investigated the relationships between a species’ network position (measured as the combined normalized degree, species strength, and ...
Boris R. Krasnov, Vasily I. Grabovsky
wiley +1 more source
Use of alternate upland nesting habitat reduces brood parasitism in an endangered bird
Avian Conservation and EcologyThe Least Bell’s Vireo ( Vireo bellii pusillus ) is a federally endangered songbird restricted to Southern California, USA, and Baja California, Mexico. Historically abundant, it suffered a catastrophic population decline during the twentieth century due
Kevin B Clark, Kimberly Ferree
doaj +1 more source
Offspring Defensive Investment Covaries With Brood Value in a Female Cobweb Spider
Integrative Zoology, EarlyView.We performed a thorough field investigation on the web architectures of Campanicola campanulata to research its cobweb architecture variation under the condition of whether it carried egg sacs, in order to test the theory of its brood value. Our results demonstrate that retreat construction in female cobweb spiders is modulated by brood value.
Haixin Zhang +7 more
wiley +1 more source