Results 11 to 20 of about 3,873 (152)

Hidden demographic impacts of fishing and environmental drivers of fecundity in a sea turtle population

open access: yesConservation Biology, Volume 37, Issue 5, October 2023., 2023
Abstract Fisheries bycatch is a critical threat to sea turtle populations worldwide, particularly because turtles are vulnerable to multiple gear types. The Canary Current is an intensely fished region, yet there has been no demographic assessment integrating bycatch and population management information of the globally significant Cabo Verde ...
Michael J. Roast   +9 more
wiley   +1 more source

Cost of parasite exposure depends on host ontogeny 寄生接觸的代價依賴於宿主發育階段

open access: yesEcological Entomology, Volume 51, Issue 3, Page 592-603, June 2026.
The cost of parasite exposure varies across host developmental stages, demonstrating that ontogeny influences the expression of non‐consumptive effects (NCEs). Mite exposure resulted in consumptive effects in fly eggs and NCEs in early‐stage pupae; mite longevity was comparable when provisioned with pupae or water but increased when provisioned with ...
Lisa R. MacLeod   +2 more
wiley   +1 more source

ギンイソイワシ Hypoatherina tsurugae の温度依存型性決定機構に関する研究 [PDF]

open access: yes, 2020
東京海洋大学博士学位論文 2020年度(2020年9月) 応用生物科学 課程博士 甲第557号指導教員:ストルスマン C.A ...
三好 花歩
core   +1 more source

The influence of zCep85 and zNek2 on the early embryonic development of zebrafish [PDF]

open access: yes, 2016
zCep85是哺乳动物中心体结合蛋白Cep85在斑马鱼中的同源蛋白,其靠近C端的部分具有一个coil-coiled功能域,这是大部分中心体结合蛋白共有的结构。目前对zCep85的研究尚浅,本实验室早期报道显示,哺乳动物细胞中hCep85特异性地拮抗hNek2,使得细胞停滞于G2/M期。但是,我们对其在脊椎动物胚胎发育中的功能依然所知甚少。为了深入探究zCep85在发育中的作用,本课题以斑马鱼(Daniorerio)为动物模型从基因结构、表达谱、功能分析等方面研究了zCep85在胚胎发育中的作用。此外 ...
余成涛
core  

Parental care and bird embryonic metabolism: A comparison between uniparentally incubating Silver‐throated Tits and biparentally incubating Black‐throated Tits

open access: yesFunctional Ecology, Volume 40, Issue 4, Page 800-815, April 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Studies have shown that organisms may adjust metabolic rates in response to thermal variability, highlighting metabolic plasticity as a key adaptive mechanism. Understanding the extent of metabolic plasticity of an organism is key to predicting its adaptation to climate
Qian Hu   +6 more
wiley   +1 more source

tudies of two kinds of hepcidins in the gonad of the mudskipper Boleophthalmus pectinirostris [PDF]

open access: yes, 2015
大弹涂鱼(Boleophthalmuspectinirostris)分布于我国东南沿海潮间滩涂,生活于洞穴之中,因其肉质鲜美,营养丰富,是我国东南沿海的重要的养殖鱼类之一。前期的研究发现,生殖季节雄性大弹涂鱼在洞穴中建造产卵室,性成熟的雌雄鱼在产卵室内交配产卵,受精卵粘附在产卵室的顶部和四周,仔鱼需要5d才能孵出。虽然洞穴内底泥和海水含有许多致病菌,但大弹涂鱼受精卵在孵化期间卵膜和胚体始终保持清洁透明状态,孵化率达到99.7%。为了了解大弹涂鱼在生殖过程中的免疫抗菌机制 ...
李哲
core  

First Confirmed Cooperative Breeding of the Brown Hornbill (Anorrhinus austeni) in China at the Sino–Lao Frontier 中国中老边境尚勇保护区首次记录白喉犀鸟 (Anorrhinus austeni) 的合作繁殖行为

open access: yesIntegrative Conservation, Volume 5, Issue 1, Page 10-15, March 2026.
First confirmed breeding of the Brown Hornbill in China, documented through cooperative feeding in Shangyong Protected Area. ABSTRACT The Brown Hornbill (Anorrhinus austeni), a Near Threatened frugivore, reaches the northern edge of its distribution in southern Yunnan, China, yet breeding had not been previously documented with site‐attributed nests in
Junsong Li   +8 more
wiley   +1 more source

Parental Care Contributes to the High Nest Predation Rates in a Passerine Species With Concealed Nests 亲代抚育导致具有隐蔽巢的雀形目鸟类巢捕食率升高

open access: yesWildlife Letters, Volume 3, Issue 2, Page 64-72, June 2025.
Daily survival rate of active nests (with parental care) (n = 30) and the same inactive nests after breeding had finished (without parental care) (n = 30) of the White‐bellied Redstarts during the incubation period; the orange line represents inactive nests and the blue line represents active nests at the same site.
Yifei Wang   +5 more
wiley   +1 more source

ウコッケイハイ ノ タイガイバイヨウ ニ オケル セイゾンリツ ト フカリツ ニ オヨボス ダイヨウランカク ノ エイキョウ ト ランカクチュウ ミネラルドウタイ [PDF]

open access: yes, 2020
本実験では,白色レグホン卵殻を代用卵殻として,ウコッケイ胚の体外培養を行い,その生存率におよぼす影響を検討するとともに,ウコッケイと白色レグホン有精卵の通常孵卵中におけるday 0およびday 21の骨形成に係る卵殻中ミネラル含有量を検証した。体外培養は,孵卵器内にて3日間通常孵卵したウコッケイ胚を白色レグホン卵殻に移し培養を行った。また,通常孵卵のday 0とday 21の卵殻は高周波プラズマ発光分析装置にて,Ca, P, Mgの含有量を分析した。体外培養の結果,白色レグホン卵殻を用いることによって ...
藤田 悠記   +13 more
core   +2 more sources

ダイ40ジ ニホン ナンキョク チイキ カンソクタイ エットウ ホウコク 1999-2000 [PDF]

open access: yes, 2011
第40次日本南極地域観測越冬隊40名は,1999年2月1日から翌2000年1月31日までの1年間,昭和基地で越冬し,第期5カ年計画3年次の観測・設営計画を遂行した.越冬観測の枠組みは第38-39次隊と同じく,定常観測(電離層,気象,潮汐)と,宙空,気水圏,地学,生物・医学の4分野におけるプロジェクト研究観測とモニタリング研究観測から成る.多くの継続観測に加えて,年次計画に従い,新たな観測も開始した.電離層部門では,50MHz・112MHzオーロラレーダ観測およびVLF電波観測を再開した.気象部門では ...
Hiroshi Miyaoka, 宮岡 宏
core   +1 more source

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