Results 121 to 130 of about 57,095 (255)
Hypotheses for the Adaptive Maintenance of Phenotypic Polymorphisms
Ecology and Evolution, Volume 16, Issue 5, May 2026.Phenotypic polymorphisms offer easily observable diversity ideal for empirical and theoretical exploration, but developing and comparing hypotheses for the adaptive maintenance of polymorphism can be a challenge. Here, we propose a framework categorizing polymorphisms based on (i) one of five distinct types of maintenance selection and (ii) the context
Jay J. Falk +2 more
wiley +1 more source
Effects of debeaking and cage density on egg production
California Agriculture, 1967 Cannibalism is one of the reactions of hens to the crowding of cage living. Debeaking at 12 to 17 weeks of age has provided a practical control of cannibalism in the past.
E Bramhall, T Little
doaj
Futures Exchange Innovations: Reinforcement versus Cannibalism [PDF]
Futures exchanges are in constant search of futures contracts that will generate a profitable level of trading volume. In this context, it would be interesting to determine what effect the introduction of new futures contracts have on the trading volume ...
Joost M.E. Pennings, Raymond M. Leuthold
core
VARIANCE COMPONENTS AND SELECTION FOR FEATHER PECKING BEHAVIOR IN LAYING HENS [PDF]
, 2005 Variance components and selection response for feather pecking behaviour were studied by analysing the data from a divergent selection experiment.
Kjaer, Jørgen B. +2 more
core
Size‐Dependent Habitat Selection in a Tropical Freshwater Crayfish: Preference for Vegetated Refugia
Ecology and Evolution, Volume 16, Issue 5, May 2026.Young freshwater crayfish need shelter to survive, but it is often unclear whether they actively choose safe habitats or simply remain where they are found. We show that craylings and juvenile red claw crayfish prefer vegetated habitats over bare sand or gravel, and that this preference becomes stronger as crayfish grow.
Mitchell Heide +4 more
wiley +1 more source
The impact of cannibalism on the population dynamics of cyclopoid copepods [PDF]
, 1991 Bosch, Frank van den, Gabriel, Wilfried
core +1 more source
Ecology and Evolution, Volume 16, Issue 5, May 2026.The survival function of nine larval wood frog populations and their viral loads when exposed to FV3. The populations were collected as eggs from a range of salt‐polluted ponds. Viral load data are means ±1 SE. The populations are ordered in terms of the saltiness of their natal ponds.
Rick A. Relyea +8 more
wiley +1 more source
Ecology and Evolution, Volume 16, Issue 5, May 2026.Araneomorph spiders are regarded as a model group for sexual selection studies, while the mating system of mygalomorph spiders remains largely unknown. We here report on the mating behaviour of an Australian wishbone spider species, involving a novel post‐copulatory behaviour for mygalomorph spiders (‘burrow plugging’).
Andrea Piccinini +5 more
wiley +1 more source
Size variation of an herbivorous insect affects host plant damage: Mechanisms behind the effect
Functional Ecology, Volume 40, Issue 5, Page 1504-1516, May 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Intraspecific trait variation can strengthen or weaken species interactions in ecological communities. A mechanistic understanding of how intraspecific variation affects species interactions will help identify general rules about when intraspecific variation strengthens
Monica Paniagua Montoya +2 more
wiley +1 more source