Results 111 to 120 of about 93,272 (288)
Pine Tree and Rocks, [Sketch 2]
, 1940 Pencil on cardstock. Large tree, small pine, and rocks in foreground; small trees and clouds in background. One of four pencil sketches Everett Spruce created at John William Rogers’ request.
Spruce, Everett F. (Everett Franklin), 1908-2002
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Insect Science, EarlyView.Moderate retention forestry creates structurally sharp forest edges that act as ecological filters, shaping orientation‐specific activity of ground‐dwelling arthropods. Using drift‐fence pitfall traps, we show that activity aligned with ecotones is more frequent than activity across forest–clearcut boundaries, particularly among detritivores.
Dominik Stočes +3 more
wiley +1 more source
Pine Tree and Rocks, [Sketch 3]
, 1940 Pencil on cardstock. Bare tree trunk standing in semicircle of stones in right foreground. Large pine in left foreground. One of four pencil sketches Everett Spruce created at John William Rogers’ request.
Spruce, Everett F. (Everett Franklin), 1908-2002
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Insect Science, EarlyView.The Moorland Clouded Yellow (Colias palaeno) benefited from cattle grazing in three different ways by (i) fostering the nectar supply; (ii) enhancing rejuvenation of the host plant (Vaccinium uliginosum); and (iii) improving microclimatic conditions for successful development of the immature stages.
Florian Fumy +3 more
wiley +1 more source
Pine Tree and Rocks, [Sketch 4]
, 1940 Pencil on cardstock. Large pine tree in foreground; path or road to the left; additional rocks and trees in the background. One of four pencil sketches Everett Spruce created at John William Rogers’ request.
Spruce, Everett F. (Everett Franklin), 1908-2002
core
Integrative Zoology, EarlyView.We study that browsing by wapiti reduces the growth of saplings, and it develop chemical defenses to prevent themselves browsed again. These results reduce our concern about wapiti browse T. cuspidate saplings, and provide basic data for the study of the interaction between them, and also provide theoretical basis for the population restoration and ...
Jianan Feng +3 more
wiley +1 more source
Warm Spring Weather Alters Calling Phenology of Four Sympatric Early‐Breeding Anurans
Integrative Zoology, EarlyView.An unusually warm March in 2024 (“false spring”) followed by freezing temperatures allowed us to assess the impact of a weather event on an amphibian community. The calling activity of all four species was associated with increasing temperature, and the first date of calling was advanced by 11–18 days.
Jeffrey P. Ethier +3 more
wiley +1 more source
Mechanisms of resistance of white spruce to the spruce bud moth
The Forestry Chronicle, 1996 There is a genetic basis to resistance of open-grown white spruce trees to their primary pest, the spruce bud moth, Zeiraphera canadensis Mutt. & Free. Resistance is attributable to late budburst and unknown factors associated with higher predation and parasitism of eggs and mortality of old larvae.
openaire +1 more source
, 1939 Individual sketches originally found in small sketchbook containing pencil sketches by Everett Spruce (Spruce Spiral Sketch Book brand sketchbook.
Spruce, Everett F. (Everett Franklin), 1908-2002
core
Microbiota‐Mediated Sequential Gallery Colonization by Adults and Larvae of an Invasive Bark Beetle
Integrative Zoology, EarlyView.Dispersing adult beetles harbor more pinitol‐degrading microbes to colonize novel host pines with high levels of pinitol stress. These microbes from the beetle's exoskeleton and gut will be transmitted into the gallery via adults’ feeding and frass, whose proliferation in the gallery contributes to the formation of a low‐pinitol microhabitat.
Wei Chen +7 more
wiley +1 more source