Results 61 to 70 of about 7,298 (208)
Influence of elevation, climate, snowmelt and floral abundance on body size of solitary bees
Ecological Entomology, EarlyView.We measured body size in bee species from a 10‐year specimen collection from Colorado sub‐alpine meadows (2450–3450 m) and tested effects of elevation and annual snowmelt, climate and floral abundance. 2 out of 4 bee species collected across a broad elevation range showed a decline in body size with higher elevations; the other two showed no effect ...
Lachlan C. Jones +5 more
wiley +1 more source
A Rangeland Grasshopper Insurance Program
Journal of Agricultural and Resource Economics, 1995 The incidence of benefits and costs from controlling rangeland grasshoppers on public grazing lands poses problems of economic efficiency and distributional equity. Public grasshopper control programs operate like public disaster assistance.
Melvin D. Skold, Robert M. Davis
doaj +1 more source
Ecological Entomology, EarlyView.Cotesia glomerata polydnavirus and venom, either alone or in combination, affect colonisation by members of the arthropod community in a natural field setting. Plants damaged by P. brassicae injected with both polydnavirus and venom were colonised more often by Mamestra brassicae caterpillars, Myzus persicae aphids and aphid parasitoids compared to ...
Sarah Naomi Kalisvaart +5 more
wiley +1 more source
The influence of cutting height on arthropods in farm grassland
Insect Conservation and Diversity, EarlyView.Mowing at a cutting height of 13 cm slightly reduced the immediate negative impact of mowing compared to mowing at a height of 7 cm. Medium‐term effects overrode this benefit: the number of vegetation‐dwelling arthropods remained strongly reduced two and four weeks after mowing, regardless of the cutting height.
Lea von Berg +6 more
wiley +1 more source
Losers, winners, and opportunists: How grassland land‐use intensity affects orthopteran communities
Ecosphere, 2016 Land use and corresponding habitat loss are major drivers of local species extinctions. Orthoptera as important grassland herbivores showed different responses to land‐use intensity in different studies, and the susceptibility of this group remains ...
Melanie N. Chisté +6 more
doaj +1 more source
Insect Conservation and Diversity, EarlyView.Consensus habitat‐suitability maps identify current hotspots of species richness across the Inner Western Anatolian mountain systems. Late‐century projections (2081–2100) under SSP2‐4.5 and SSP5‐8.5 show range shifts and changing richness patterns, intensifying at higher elevations.
Muhammed Arif Demir, Mahmut Kabalak
wiley +1 more source
Dragonfly functional connectivity responses are dynamic relative to drought
Insect Conservation and Diversity, EarlyView.During drought, dragonfly species richness decreases. Yet, dragonfly assemblages show a higher propensity for dispersal during drought. Dispersal pathways vary among the wet and dry periods, and relative to temporal changes in the landscape. While some dragonfly species can traverse plantation compartments, conservation corridors facilitate functional ...
Charl Deacon +2 more
wiley +1 more source
The pectoralis muscle orientation as an indicator of the modes of wing‐propelled locomotion in birds
Journal of Anatomy, EarlyView.The pectoralis orientation of birds was consistent with the orientation of the aerodynamic force acting on the wing, varying by wing‐propelled locomotion (WPL) mode. The skeletal morphology unique to each WPL mode, related to the origin/insertion of the pectoralis, may be associated with these functional demands of pectoralis orientation.
Takumi Akeda, Shin‐ichi Fujiwara
wiley +1 more source
Journal of Systematics and Evolution, EarlyView.Our ancestral state reconstruction in tree crickets reveals multiple independent and irreversible losses of sound‐producing and ‐receiving structures, supporting the convergent evolution of the silent phenotype. We demonstrate strong evolutionary integration between forewings and tympana, although the discovery of ‘silent listeners′ and ‘deaf singers ...
Lucas Denadai de Campos +3 more
wiley +1 more source