Results 31 to 40 of about 1,199,584 (155)
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract The design of experiments to investigate the combined effects of multiple stressors requires exposing target organisms to multiple combinations of stressor doses. Concurrent manipulation of stressors is often infeasible with wildlife, but long‐lasting health effects allow individual health to be used as an integrator of prior stressor exposure.
Enrico Pirotta +24 more
wiley +1 more source
, 1991 本工作试图从想象的丰富性和特点来比较想象的年龄差异。被试共45例,分三个年龄组(少年、青年和老年),每组15例(男8、女7)。测试材料为抽象直线图形和Droodles.结果表明:①对图想象的总数随增龄而减少;②不同年龄组想象的内容有不同倾向;③对图形想象的种类和新颖性随增龄而减少;④老年组想象的整体性明显低于青年组和少年组,后两组相接近。可见,少年具有想象丰富、活跃和新颖的特点,在教育工作中应予重视 ...
孙长华 +3 more
core +1 more source
四川大学学报. 自然科学版, 2002 根据2001和2002两年间6个月的标志重捕资料,在对分布于四川西北部若尔盖草原的青海沙蜥(Phrynocephalusvlangalii)的体长、体重和尾长3组数据进行相关分析的基础上,分别对这3组数据进行聚类分析.最后选取体长的聚类分析结果把青海沙蜥的所有个体分成3个年龄组,3个年龄组的体长范围分别是:26～36mm;37～50mm;51～65mm.各年龄组体长、体重和尾长平均值差异的F检验结果,说明用体长划分年龄较为合理.青海沙蜥种群的年龄结构基本上呈金字塔形,但第II年龄组个体数比例较小 ...
吴鹏飞 +6 more
doaj
Shuitu Baochi Xuebao, 2020 为明确一定养分条件下枸杞耗水量与产量的关系，于2014年和2015年采用2因素3水平对比试验设计，研究了枸杞耗水量与碱解氮消耗量耦合效应对产量的影响，通过回归的耦合模型对基于树种、树龄、碱解氮消耗量的枸杞灌溉制度进行了优化。结果表明：（1）相同施肥条件时，4年树龄时HW产量最高，为1 335.7 kg/hm2，MW产量次之，为1 174.2 kg/hm2，LW产量最低，为1 066.5 kg/hm2，5年树龄时HW产量为2 463.7 kg/hm2，MW产量最高，为2 556.1 kg/hm2 ...
马波, 田军仓
doaj
Zhongguo shiyan zhenduanxue, 2021 不孕症在育龄期女性中发病率为10%-15%[1],不孕症的病因较多,不管是输卵管因素、卵巢因素或者子宫因素等,机体内可能存在慢性炎症,因此,回顾性分析了不孕症患者白细胞计数、凝血功能、纤维蛋白原及D-二聚体的结果,并与女性体检组作为对照组进行比较分析。1资料与方法1.1一般资料2018年1月1日至2019年8月31日,来湖北省妇幼保健院生殖中心就诊,年龄22-44岁的女性患者,诊断为女性原发性不孕症253例,平均年龄(29.5±3.7)岁;女性继发性不孕症205例,平均年龄(31.1±4.4)岁 ...
胡兴文, 熊潜涛, 洪媛
doaj
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract Bycatch in fisheries is one of the most serious threats to pelagic seabirds, causing major population declines. Mitigation measures can reduce bycatch substantially, but many fisheries fail to apply best practices, and seabird mortality remains high.
V. Warwick‐Evans +2 more
wiley +1 more source
Assessing differences among elasmobranch nurseries to aid conservation based on a genomics framework
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract Elasmobranch nurseries often differ in environmental conditions, demographics, and use patterns. These differences affect the distribution of genetic variation among nurseries. However, conservation and management strategies often fail to account for such differences because they are difficult to characterize.
Dominic G. Swift +8 more
wiley +1 more source
How identity bias affects perceptions of conservation messages on social media
Conservation Biology, Volume 40, Issue 4, August 2026.Abstract Public support is essential for conservation, as public opinion can influence decision‐making and policy. Therefore, understanding whether bias toward conservationists due to their identity (identity bias) affects their perceived credibility and support for their recommendations is important.
Lauren F. Rudd +4 more
wiley +1 more source
Zhongguo shiyan zhenduanxue, 2011 目的分析健康成人血清ALP活性,探讨ALP水平在成人性别和年龄的分布规律。方法随机选择2008年来吉大一院健康体检各项指标正常的健康人19416例,对其血清ALP活性进行回顾性统计分析。结果 21-50岁男性ALP值显著高于同年龄组女性 ...
吉利, 连丽丽, 孙淑艳, 孙小慧
doaj
Ultrasound in Obstetrics &Gynecology, Volume 68, Issue 1, Page 59-67, July 2026.ABSTRACT Objective Infertility affects up to 20% of couples in high‐income countries, which has led to an increased use of assisted reproductive technology (ART). While previous studies have linked ART to a higher risk of major congenital heart defects (CHD), less is known about the associated risk of minor CHD.
F. Kyhl‐Svart +16 more
wiley +1 more source