Army ant males lose seasonality at a site on the equator

Army ant males lose seasonality at a site on the equator
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赤道上的雄性行军蚁失去了季节性

DOI:
10.1111/btp.13192
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发表时间:
2023
期刊:
影响因子:
2.1
通讯作者:
Longino, John T.
Longino, John T.
中科院分区:
环境科学与生态学3区
文献类型:
--
作者:
Tozetto, Leonardo;Forrister, Dale L.;Duval, Megan;Hays, Tobias;Garwood, Nancy C.;Castro, Ronald Vargas;Lattke, John E.;Sendoya, Sebastian;Longino, John T.

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行军蚁是热带和亚热带地区的主要掠食者。在繁殖过程中,雄蜂在蜂群之间飞行,与未交配的无翅蜂后交配。大多数物种的雄性都被灯光所吸引,因此可以使用灯光陷阱来监测它们的存在和繁殖时间。以往的研究考察了行军蚁雄性繁殖的季节性及其与个别地点气候因素的关系,但对地点之间的变化知之甚少。我们在三个地点研究了行军蚁雄性飞行的季节性:(1)哥斯达黎加的La Selva生物站,一个具有弱温度季节性和中等降雨量以及日长季节性的地点,(2)厄瓜多尔的亚苏尼国家公园,一个没有温度或日长季节性和非常弱的降雨季节性的地点,以及(3)巴西南部的巴拉那州,一个具有非常强的温度、降雨量、和日长季节性。行军蚁在拉塞尔瓦和巴拉那的季节性很强,在亚苏尼的季节性很弱甚至没有。在拉塞尔瓦和巴拉那,飞行时间因物种而异,但每年都很容易预测,这表明白天的长度或温度是可预测的线索,而不是降雨量。赤道附近缺乏季节性的线索可能是一个挑战的行军蚁物种,需要同步殖民地繁殖,因此可能有保护的最低人口规模所需的,以确保稳定的人口。
Army ants are keystone predators in the tropics and subtropics. During reproduction, males fly between colonies to mate with unmated, wingless queens. The males of most species are attracted to lights, and thus their presence and the timing of reproduction can be monitored using light traps. Previous studies examined the seasonality of army ant male reproduction and its relationship to climate factors at individual sites, but less is known about variation among sites. We examined army ant male flight seasonality at three sites: (1) La Selva Biological Station in Costa Rica, a site with weak temperature seasonality and moderate rainfall and day length seasonality, (2) Yasuní National Park, Ecuador, a site with no temperature or day length seasonality and very weak rainfall seasonality, and (3) the state of Paraná in southern Brazil, a site with very strong temperature, rainfall, and day length seasonality. Army ants showed strong seasonality at the La Selva and Paraná sites, and very weak to no seasonality at the Yasuní site. At La Selva and Paraná, flight times varied among species, but were very predictable from year to year, which suggests day length or temperature as predictable cues rather than rainfall. Lack of seasonal cues near the equator may be a challenge for army ant species that need to synchronize colony reproduction, and thus may have conservation implications for minimum population sizes needed to ensure stable populations.Abstract in Spanish is available with online material.
新热带地区行军蚁袭击率高及其对蚁群和群落结构的影响
DOI: --
发表时间: 2003
期刊:
影响因子: --
作者:
M. Kaspari;S. O’Donnell
通讯作者: S. O’Donnell
DOI: --
发表时间: 1991
期刊:
影响因子: --
作者:
Renato C. Marinoni;Renato R.C. Dutra
通讯作者: Renato R.C. Dutra
四种森林中的行军蚁:袭击率和物种组成的地理差异。
DOI: --
发表时间: 2007
影响因子: 4.8
作者:
S. O’Donnell;J. Lattke;S. Powell;M. Kaspari
通讯作者: M. Kaspari
DOI: 10.1111/j.1095-8312.1987.tb00298.x
发表时间: 1987-03-01
影响因子: 1.9
作者:
FRANKS, NR;HOLLDOBLER, B
通讯作者: HOLLDOBLER, B
DOI: 10.2307/3546338
发表时间: 1996-09-01
期刊: OIKOS
影响因子: 3.4
作者:
Kaspari, M
通讯作者: Kaspari, M