Comments on: “Estimating the body mass of the Late Pleistocene megafauna from the South America Intertropical Region and a new regression to estimate the body mass of extinct xenarthrans”

Comments on: “Estimating the body mass of the Late Pleistocene megafauna from the South America Intertropical Region and a new regression to estimate the body mass of extinct xenarthrans”
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评论:“估算南美洲热带地区晚更新世巨型动物的体重以及估算已灭绝异角动物体重的新回归”

DOI:
10.1016/j.jsames.2022.103994
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发表时间:
2022
影响因子:
1.8
通讯作者:
Machado, Fabio A.
Machado, Fabio A.
中科院分区:
地球科学4区
文献类型:
--
作者:
Hubbe, Alex;Machado, Fabio A.

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量化野生动物的食物摄入量对于许多生态和进化问题至关重要,但它可能非常具有挑战性,特别是在海洋环境中。由于可以从许多海洋生物的潜水记录中推断出觅食行为,因此我们假设特定的行为潜水变量可以指示食物摄入量。为了验证这一假设,我们在繁殖中的阿德利企鹅身上安装了时间深度记录仪,这些记录仪也植入了 RFID 标签,当它们往返于海洋喂养雏鸟时,这些标签会穿过地磅。地磅报告了企鹅在觅食过程中增加了多少质量。解释海上体重显着变化的变量是每小时潜水觅食的次数(46%)和每小时波动的次数(12%)。最重要的是,每小时觅食潜水速度每增加 1,企鹅在 6 至 60 小时的觅食行程中平均体重增加 170 克。这些结果加深了人们的认识,即不同的觅食成功指标可能适用于不同的物种,并且使用时间深度记录仪评估潜水的类型和频率可以产生有价值的见解。
Quantifying food intake in wild animals is crucial to many ecological and evolutionary questions, yet it can be very challenging, especially in the marine environment. Because foraging behavior can be inferred from dive recordings in many marine creatures, we hypothesized that specific behavioral dive variables can indicate food intake. To test this hypothesis, we attached time-depth recorders to breeding Adélie penguins also implanted with RFID tags that crossed a weighbridge as they traveled to and from the ocean to feed their chicks. The weighbridge reported how much mass the penguin had gained during a foraging trip. The variables that explained a significant amount of the change in body mass while at sea were the number of foraging dives per hour (46%) and the number of undulations per hour (12%). Most importantly, every increment of 1 in the rate of foraging dives per hour equated to a penguin gaining an average 170 g of mass, over the course of a 6–60 h foraging trip. These results add to a growing understanding that different metrics of foraging success are likely appropriate for different species, and that assessing the types and frequencies of dives using time-depth recorders can yield valuable insights.
DOI: 10.1186/1741-7007-10-60
发表时间: 2012-07-10
期刊: BMC biology
影响因子: 5.4
作者:
Campione NE;Evans DC
通讯作者: Evans DC
DOI: 10.2139/ssrn.4103305
发表时间: 2022
期刊: SSRN Electronic Journal
影响因子: --
作者:
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通讯作者: M. Dantas
Xenarthrans 的颅后肌肉骨骼系统:两个多世纪研究的见解和未来方向
DOI: --
发表时间: 2018
影响因子: 1.9
作者:
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通讯作者: J. Nyakatura
体型作为进化阻力最小的一条线:新大陆猴的饮食和适应性形态辐射
DOI: 10.1111/j.0014-3820.2005.tb01049.x
发表时间: 2005
期刊: The Journal of clinical endocrinology and metabolism
影响因子: --
作者:
G. Marroig;J. Cheverud
通讯作者: J. Cheverud
DOI: 10.1017/pab.2017.9
发表时间: 2017-11-01
期刊: PALEOBIOLOGY
影响因子: 2.7
作者:
Campione, Nicols E.
通讯作者: Campione, Nicols E.