道,和谐——山水自然保护中心

<正>几年前看过一部叫做"蝴蝶"的电影,讲述一老一小,追寻一只叫做"伊莎贝尔"蝴蝶的故事,相信不少人也会如我一样,一遍又一遍地被这部电影的浓浓温情、唯美画面打动。大自然的生命姿态多姿绽放,但如何与它们相伴相依,这可以作为一个永恒话题被孜孜探索下去。纵然经常有人与自然不和谐的画面出现,但是,有人在行动,有这些个星星之火总可以燎原的NGO们在行动。近日,笔者走     

The rhythm of stereotypic behaviors in captive giant panda (Ailuropoda melanoleuca)北大核心CSCD

Stereotypy can be defined as a repetitive behavioral pattern with no apparent function or target in captivity. It is considered an abnormal behavior in contrast to the behavior in wild habitats and is often used as an important index to evaluate the captive environment, which has a significant scientific value. Many previous studies have focused on the impact of environment on stereotypical behavior; however, the rhythm of stereotypy remains unclear. To determine the mechanism of stereotypy, eight giant pandas (Ailuropoda melanoleuca) were investigated 24 h a day from Jan 2018 to Dec 2019, with focal sampling and continuous recording. No stereotypy in the juveniles was noted, while the adult giant pandas displayed different stereotypies. Mean stereotypy durations were 0.72% of the total activity in circadian rhythm, with a peak of mean durations in all seasons occurring at 7:00 am–9:00 am, while, in spring, there was a peak of mean duration at 1:00 am–3:00 am. Although there was no significant difference, mean stereotypy durations and frequencies in the night were longer than those in the daytime. Mean stereotypy frequencies in spring reached the highest level, whereas mean stereotypy durations in winter were maximal. The adult giant pandas in the daytime showed maximal mean stereotypy durations in winter and minimal mean stereotypy durations in busy seasons (summer and autumn), whereas mean stereotypy durations at night were maximal in busy seasons. Despite no significant differences among these seasons, our results suggest that the stereotypy of giant pandas may have diurnal rhythms and seasonal differences. In light of the similar captive environment between adult and juvenile giant pandas, the appearance of stereotypy may be correlated with age, which may be the effects of the environment or a strategy of adaptation. © 2022 Science Press. All rights reserved.     

好消息

正种子联动植树节微博绿动全国高校3月12日迎来了我国第36个植树节,"种子变绿植,绿动我校园"第四届全国大学生绿植领养活动也在全国1200所高校陆续启动。仅3月12日当天就有超过5万名大学生通过绿植领养虚拟点进行签到,复旦大学、浙江大学等601所高校植树节当天举办了本校的绿植领养活动,参与活动的同学只要发送微博#绿植领养#+自己的绿色生活宣言,分享一个自己的低碳生活小习惯,即可获得绿植种子一包。     

高黎贡山,白眉长臂猿最后的“避难所”

早就听说,在云南西部中缅边境,周边分布着傣、傈僳、独龙、景颇、德昂等20多个少数民族的高黎贡山中,有一种“神兽”数量比大熊猫还要稀少。它们是人类的近亲,也恪守一夫一妻制,对爱情忠贞,一旦结合就终生厮守;它们武艺超群,在林中跳跃飞行的距离达十多米远;它们擅长歌唱,旋律起伏婉转,数里外可闻其声;它们还给人类带来好运,被当地人称为“舞动的精灵”。