Results 31 to 40 of about 5,569 (158)

The Value of Periodical Trap-nesting

open access: yesPoultry Science, 1939
Abstract SINCE it has become an established fact that egg production is to a considerable extent inherited, it is necessary, if one is to carry out a progressive breeding program, to know something of the inherent production qualities of each bird. In order to secure this information, some poultrymen have resorted to the use of the trap-nest. However,
openaire   +1 more source

Managing trap‐nesting bees as crop pollinators: Spatiotemporal effects of floral resources and antagonists [PDF]

open access: yesJournal of Applied Ecology, 2017
Abstract The decline of managed honeybees and the rapid expansion of mass‐flowering crops increase the risk of pollination limitation in crops and raise questions about novel management approaches for wild pollinators in agroecosystems. Adding artificial nesting sites, such as trap nests, can promote cavity‐nesting bees in agroecosystems, but ...
Dainese, Matteo   +5 more
openaire   +2 more sources

Grazing Intensity and the Diversity of Grasshoppers, Butterflies, and Trap‐Nesting Bees and Wasps

open access: yesConservation Biology, 2002
Abstract: The maintenance of grasslands as distinct habitats depends on regular management, usually through grazing or mowing, but their species diversity is known to decline with increasing management intensity.
Kruess, Andreas, Tscharntke, Teja
openaire   +2 more sources

What do we know about Neotropical trap-nesting bees? Synopsis about their nest biology and taxonomy

open access: yesPapéis Avulsos de Zoologia
Cavity-nesting bees are enigmatic because they are difficult to observe in the wild, hence trap-nests (man-made cavities) provide the means by which these bees may be studied.
Camila Cristina Ferreira da Costa   +1 more
doaj   +1 more source

Studying the Nesting Biology of Golden Eagles by Use of Trap Cameras

open access: yesПернатые хищники и их охрана, 2023
Trap camera was installed in an active nest of Golden Eagles (Aquila chrysaetos) in Eastern Rhodopes, Bulgaria. The recordings encompassed 45 days in June and July and the camera took 12 900 photos, from the time when the single chick was ca. 32 days old
Ivaylo D. Angelov
doaj   +1 more source

Dynamics of nest occupation and homing of solitary bees in painted trap nests [PDF]

open access: yesEcological Entomology, 2020
1. The oil‐collecting bee Centris analis (Fabricius, 1804) is an important pollinator for the Neotropical region. The species can be attracted to nest in human‐made cavities. Such trap nests or insect hotels offer the opportunity to study the behaviour of populations in semifield conditions.
Samuel Boff, Anna Friedel
openaire   +2 more sources

Accuracy of Short-Interval Trap-Nesting of the Fowl

open access: yesPoultry Science, 1941
Abstract DAILY trap-nesting of fowls is one of the most costly operations of a poultry breeding plant. Any reduction in the labor required in obtaining trap-nest records would obviously reduce the costs of operation. Many short-cut methods for obtaining satisfactory egg records of hens have been proposed and a complete review of the literature was ...
openaire   +1 more source

Unveiling the trap-nesting bees and wasps’ fauna (Hymenoptera: Apocrita) and associated organisms of the Jardim Botânico do Rio de Janeiro, Brazil [PDF]

open access: yesPapéis Avulsos de Zoologia
Urban areas, as cities, are frequently overlooked as refuges for the native fauna. However, these places may support several species and house relevant biodiversity contributing to important ecosystemic functions.
Diego Marinho, Felipe Vivallo
doaj   +2 more sources

A Test of the Accuracy of Trap-Nest Records

open access: yesPoultry Science, 1937
Abstract IN A recent paper Amiet (1936) suggested that the methods of statistics might be used to good advantage in record of performance inspection work. As a contribution to this field, Hendricks (1937) showed that the familiar chi-square distribution may be employed to test the accuracy of trap-nest records.
openaire   +1 more source

Wild Foundress Queen Bumble Bees Make Numerous, Short Foraging Trips and Exhibit Frequent Nest Failure: Insights From Trap‐Nesting and RFID Tracking

open access: yesEcology and Evolution
The overwhelming majority of research on wild bumble bees has focused on the social colony stage. Nest‐founding queens in the early season are difficult to study because incipient nests are challenging to find in the wild and the foundress queen flight ...
Erica Sarro Gustilo   +2 more
doaj   +1 more source

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