Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Ralph V. Cartar"'
Publikováno v:
Insect Conservation and Diversity. 16:122-132
Publikováno v:
Behavioral Ecology. 33:386-397
The ideal-free distribution and central-place foraging are important ecological models that can explain the distribution of foraging organisms in their environment. However, this model ignores distance-based foraging costs from a central place (hive,
Publikováno v:
Agriculture, Ecosystems & Environment. 347:108396
Autor:
George C. Adamidis, Stephen F. Pernal, Shelley E Hoover, Ralph V. Cartar, Andony P. Melathopoulos
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-12 (2019)
Scientific Reports
Scientific Reports
Insect pollination of flowers should change the within-season allocation of resources in plants. But the nature of this life-history response, particularly regarding allocation to roots, photosynthetic structures, and flowers, is empirically unresolv
Autor:
Ralph V. Cartar, Jordan C. Roberts
Publikováno v:
Canadian Journal of Zoology. 93:531-537
Wing wear reflects the accumulation of irreversible damage to an insect’s wings over its lifetime and this damage should influence flight performance. In the case of bumble bees, flight seems robust to variation in wing-area asymmetry and air press
Autor:
Virginia Kowal, Ralph V. Cartar
Publikováno v:
Journal of Insect Conservation. 16:613-627
Increasing fragmentation of forests worldwide by timber and industrial development makes it important to understand the edge effects of common anthropogenic disturbances on forest fauna. We collected ground-active spiders along transects across the e
Autor:
Ralph V. Cartar, Chris J. Pengelly
Publikováno v:
Forest Ecology and Management. 261:2068-2074
The rate of floral nectar production, an important trait for supporting populations of pollinators, is known to be affected by local environment. This study examines the effect, 9 years after an anthropogenic disturbance—variable retention logging,
Autor:
Ralph V. Cartar, Danusha J. Foster
Publikováno v:
Journal of Experimental Biology. 214:1896-1901
SUMMARYFlying is an ecologically important behaviour in many insects, but it often results in permanent wing damage. Although wing wear in insects is often used as a method to determine insect age, and is associated with an increased risk of mortalit
Autor:
Danusha J. Foster, Ralph V. Cartar
Publikováno v:
Behavioral Ecology. 22(1):52-59
Damage to structures that enable mobility can potentially influence foraging behavior. Bumble bees vary in extent of individual wing wear, a trait predicted to affect mechanical performance during foraging. This study asks 1) do bumble bees distribut
Autor:
Chris J. Pengelly, Ralph V. Cartar
Publikováno v:
Forest Ecology and Management. 260:994-1002
Boreal forests are currently facing intensified logging pressures, yet we know little about impacts of logging on the pollination community. This study extends research done immediately before and after logging, to consider its longer term effects. W