Results 131 to 140 of about 546,879 (254)
Diurnal Variations in the Upstream Migration of Adult Masu Salmon (Oncorhynchus masou) in Rivers of Hokkaido during the Spawning Season [PDF]
, 2002 産卵期におけるサクラマス親魚の遡上活動の日周変動について、十勝川水系猿別川と尻別川水系目名川の下流に位置するサケマス捕獲場で観察した。サクラマスの遡上活動は日中に活発化して夜間にはほとんど移動しないのに対し、同時に採捕されたサケおよびカラフトマスは夜間にも遡上し、日中の遡上時間帯もサクラマスとサケ間で有意に異なった。上流域を産卵場として選択するサクラマスの遡上行動は、流れの中で遡上障害物を視覚で認識することの出来る日中に活発化すると考えられた。Diurnal variations of adult ...
マヤマ, ヒロシ +2 more
core
Mobile consumers influence the shoreward edge of intertidal seagrass ecosystems
Journal of Animal Ecology, EarlyView.Ecological paradigms suggest that the environmentally stressful edge of a habitat is determined by physical factors. The work finds that, counter to these paradigms, an environmentally stressful edge can also be impacted by biotic interactions and are more complex than suggested.
Stephanie R. Valdez +4 more
wiley +1 more source
Evidence of parental care as a newly identified reproductive isolating barrier
Journal of Animal Ecology, EarlyView.Behavioural variation can contribute to reproductive isolation and can be an important driver of speciation. Here, we show that a previously undescribed mechanism, parental care, can function as a postzygotic reproductive isolating barrier when dysregulated in hybrids.
Colby Behrens +6 more
wiley +1 more source
British Journal of Management, EarlyView.Abstract Business schools are often criticized for reproducing growth‐oriented norms, but alternative pedagogies remain difficult to normalize. Drawing on Butler's theory of subversive performativity, this study examines how art‐based pedagogy enables academics to challenge growth logics in business schools by transforming their identities over time ...
Sylvain Bureau +3 more
wiley +1 more source
Economic Factors Effecting Salmon Fisheries in Japan [PDF]
, 2005 わが国の沖合サケ漁業は衰退したが、国産シロザケの生産量はふ化放流事業の成功によって年々増加してきた。しかし、サケ市場が国際化したことによって国産シロザケの産地価格は低迷し続け、わが国のサケ漁業は存続の危機に直面し構造改革を迫られている。国産シロザケの価格変動要因を明らかにするために、北海道の水揚げ港におけるシロザケ価格の短期および長期の変動機構並びに産地市場におけるシロザケの価格形成要因を計量的に分析した。生鮮サケ類産地価格は生鮮サケ類在庫量と生鮮サケマス類輸入量が増加すると低下し ...
清水, 幾太郎 +2 more
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Journal of the Royal Anthropological Institute, EarlyView.Indigenous societies along the temperate Pacific coast of North America embody diverse cultural institutions. This variation is conventionally classified into two distinct cultural areas: the Northwest Coast (NWC) and California (CAL). Discussion of the environmental, material, social, and ideological variation in these societies has a long and ...
Eric Alden Smith, Brian F. Codding
wiley +1 more source
The Ladies’ Alpine Club, Embattled Collaboration and International Communities of Knowledge, 1907–39
History, EarlyView.Abstract This article considers the development of the Ladies’ Alpine Club from its inception until the Second World War through its Yearbooks, articles and lectures, as part of a community of knowledge which was devoted to international mountaineering.
James Watts
wiley +1 more source
Extraocular Photoreception in Optic Lobes, Suckers, and Skin of Octopus vulgaris
Integrative Zoology, EarlyView.Evidence of extra‐ocular photoreception in Octopus vulgaris (a) Diagram of the O. vulgaris different tissues considered: SPB, sucker proximal big; SPL, sucker proximal large; SM, sucker medium; SD, sucker distal; SK, skin; OL, optic lobes; RT, retina; (b‐d) Gene expression analysis of Ov‐GRK1 (red), Ov‐retinochrome (green), Ov‐rhodopsin (blue) mRNA ...
Valeria Maselli +7 more
wiley +1 more source
Integrative Zoology, EarlyView.A high‐quality chromosome‐level reference genome was constructed for Hucho bleekeri. Population structure and environmental adaptation of Hucho species were revealed by whole‐genome resequencing. ABSTRACT Salmonidae represents an important family in the study of genome evolution following genome duplication.
Yeyu Chen +9 more
wiley +1 more source
Integrative Zoology, EarlyView.This study identified a specific sequence of an extended drought followed by exceptional rainfall as a necessary precursor for mouse plagues in southeastern Australia. Long‐term rainfall anomalies interact with ecological processes to reset population dynamics, creating conditions that support rapid mouse population growth following periods of ...
Peter R. Brown
wiley +1 more source