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Breeding site attendance and breeding success in Phyllomedusa trinitatis (Anura: Phyllomedusidae) 三叶卷毛藻(无尾目:卷毛藻科)的繁殖地出席率和繁殖成功率
IF 0.4 4区 生物学 Q4 ZOOLOGY Pub Date : 2021-06-22 DOI: 10.11606/issn.2316-9079.v20i1p53-66
C. Boyle, Eleanor H. Z. Gourevitch, J. Downie
Using a natural marker, we documented breeding site attendance patterns by males and females of the Trinidad Leaf Frog, Phyllomedusa trinitatis. We followed attendance at a cluster of three isolated ponds over 53 and 56 consecutive nights in 2016 and 2019 respectively. Most females attended only once, but for those that attended more than once we calculated an inter-nesting interval (mean 27.6 days, N = 7). Males showed high pond fidelity, but some did attend at two of the ponds, always with a strong preference for one of them. Males showed three attendance patterns. A few attended on multiple consecutive nights (maximum, 19 nights); more were sporadic (one attended seven times over 46 nights with gaps of 15 and 19 days in the sequence); some attended only once (2016: 12, 2019: 15), but most were found to be present on multiple nights (2016: 38, 2019: 32). Our analysis suggested that these latter frogs were either newly recruited individuals or had been predated during the study. Our data show that rainfall has some influence on attendance. We found no relationship between male body condition and attendance pattern. In addition, there was no evidence that a particular male attendance pattern was optimal for breeding success.
利用自然标记,我们记录了特立尼达叶蛙(Phyllomedusa trinitatis)雄性和雌性在繁殖地的出席模式。我们分别在2016年和2019年连续53天和56个晚上跟踪了三个孤立池塘的出勤情况。大多数雌鸟只筑巢一次,但对于那些多次筑巢的雌鸟,我们计算了筑巢间隔(平均27.6天,N = 7)。雄性表现出很高的池塘忠诚度,但有些确实会去两个池塘,总是对其中一个有强烈的偏好。男性有三种出勤模式。少数人连续数晚出席(最多19晚);更多的是零星的(一个人在46个晚上参加了7次,间隔15天和19天);有些人只参加过一次(2016年:12次,2019年:15次),但大多数人被发现参加了多个晚上(2016年:38次,2019年:32次)。我们的分析表明,这些后来的青蛙要么是新招募的个体,要么是在研究期间被淘汰的。我们的数据显示,降雨对出勤率有一定影响。我们发现男性的身体状况和出勤模式没有关系。此外,没有证据表明特定的雄性出勤模式是繁殖成功的最佳选择。
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引用次数: 2
Predation of anurans by spiders: four cases in Mexican tropical forests 蜘蛛捕食无尾蚁:墨西哥热带森林中的四例
IF 0.4 4区 生物学 Q4 ZOOLOGY Pub Date : 2020-12-12 DOI: 10.11606/issn.2316-9079.v19i2p279-282
Ricardo Luría-Manzano, Liliana Ortíz-Lozada, Jaime Pelayo-Martínez, J. L. Aguilar-López, Sarai Gómez-Toxqui, A. Ramírez‐Bautista
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引用次数: 0
Notes on the reproduction and thermal biology of Porthidium ophryomegas (Serpentes: Viperidae) 大孔门蛛繁殖及热生物学研究(蛇科:蝰科)
IF 0.4 4区 生物学 Q4 ZOOLOGY Pub Date : 2020-12-12 DOI: 10.11606/issn.2316-9079.v19i2p253-257
M. A. Turcios-Casco, Alejandro Velásquez, Nadienhka W. Casco-Raudales, J. A. Soler-Orellana
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引用次数: 0
Phenology and mortality of embryos in a Colombian population of Nymphargus grandisonae (Anura: Centrolenidae) 哥伦比亚大睡蝶种群胚胎的表型和死亡率
IF 0.4 4区 生物学 Q4 ZOOLOGY Pub Date : 2020-12-12 DOI: 10.11606/issn.2316-9079.v19i2p225-241
Daniela Villegas-Mora, Sebastian Muñoz-Acevedo, E. C. Guevara-Molina, F. Vargas-Salinas
Phenology and mortality of embryos in a Colombian population of Nymphargus grandisonae (Anura: Centrolenidae). Studies of phenology and natural history of anurans provide information useful for its conservation. This is particularly important in current scenarios of emergent diseases, high rates of deforestation, and climate change. We recorded the timing of breeding of the Glass Frog Nymphargus grandisonae and its relationship to precipitation and environmental temperature for four years in a population located in the Central Andes of Colombia, South America. In addition, we recorded the causes of mortality in egg clutches of this species. We quantified infestation by fly larvae and its impact on the survival of embryos. We found that the reproductive activity of N. grandisonae (number of males calling) was seasonal and occurred in months with highest precipitation. The main cause of embryo mortality in clutches was associated with the infestation by a spittlebug fly of the genus c.f. Cladochaeta (Drosophilidae). The survival of embryos in infested clutches was significantly lower than in those clutches not infested by fly larvae. Our results provide baseline data for the monitoring of anuran population dynamics in the Andean region using the glass frog N. grandisonae as a model system.
哥伦比亚大睡蝶种群胚胎的表型和死亡率。对无尾兰的酚学和自然史的研究为其保护提供了有用的信息。在当前突发疾病、高森林砍伐率和气候变化的情况下,这一点尤为重要。我们在位于南美洲哥伦比亚安第斯山脉中部的一个种群中记录了玻璃蛙大睡蛙的繁殖时间及其与降水和环境温度的关系,持续了四年。此外,我们还记录了该物种卵窝死亡的原因。我们量化了苍蝇幼虫的侵扰及其对胚胎存活的影响。我们发现,大锥虫的繁殖活动(雄性数量)是季节性的,发生在降雨量最高的月份。离合器胚胎死亡的主要原因与一种枝毛病蝇属(Drosophilidae)的spitlebug蝇的侵扰有关。受感染的离合器中胚胎的存活率明显低于未受苍蝇幼虫感染的离合器。我们的研究结果为使用玻璃蛙N.grandsonae作为模型系统监测安第斯地区无尾蛙种群动态提供了基线数据。
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引用次数: 2
Multimodal signaling in Boana albopunctata (Anura: Hylidae): reading visual and acoustic cues 白斑波猴(无尾目:水螅科)的多模态信号:阅读视觉和听觉线索
IF 0.4 4区 生物学 Q4 ZOOLOGY Pub Date : 2020-12-12 DOI: 10.11606/issn.2316-9079.v19i2p201-216
Andréa Rösel de Lourenço, C. Haddad, F. P. Sá
Multimodal signaling in Boana albopunctata (Anura: Hylidae): reading visual and acoustic cues. The acoustic mode of communication is important for anurans, but visual communication is beginning to be considered essential for some species, genera, and families. This study focuses on visual and acoustic signals in Boana albopunctata (Hylidae: Cophomantinae) in an attempt to increase our understanding of signaling in this nocturnal Neotropical treefrog. Visual signals were assessed to determine whether they are directed toward conspecific opponents, as has already been observed for some diurnal anurans, or associated with potential morphological asymmetries. Associations between visual and acoustic signals were explored. The results suggest that males may combine visual and acoustic signals (multimodal signaling) synergistically, thereby strengthening the efficiency of information transmission. Thus, in nocturnal anuran species, visual signals may function primarily as an alerting component and multimodal signaling may be a relevant way of communication.
白暨豚的多模式信号传导:阅读视觉和声学线索。声学交流模式对无尾类动物很重要,但视觉交流开始被认为对某些物种、属和科至关重要。本研究的重点是白腹蛙的视觉和声学信号,试图加深我们对这种夜间新热带树蛙信号的理解。对视觉信号进行了评估,以确定它们是否是针对同种对手的,正如已经在一些昼夜无尾类中观察到的那样,或者与潜在的形态不对称有关。探讨了视觉和声学信号之间的关联。研究结果表明,男性可以将视觉和听觉信号(多模式信号)协同结合,从而提高信息传递的效率。因此,在夜间活动的无尾类物种中,视觉信号可能主要作为警报成分发挥作用,而多模式信号可能是一种相关的沟通方式。
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引用次数: 2
Fruit consumption by Salvator merianae (Squamata: Teiidae) in the Brazilian Caatinga 巴西Caatinga的Salvator meriane(Squamata:Teiidae)的水果消费
IF 0.4 4区 生物学 Q4 ZOOLOGY Pub Date : 2020-12-12 DOI: 10.11606/issn.2316-9079.v19i2p283-286
Virgínia Helen Figueiredo Paixão, E. Venticinque
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引用次数: 2
Natural history of the marsupial frog Gastrotheca albolineata (Anura: Hemiphractidae) in lowland Brazilian Atlantic Forest 巴西大西洋低地森林腹腹蛙(无尾目:腹腹蛙科)的自然历史
IF 0.4 4区 生物学 Q4 ZOOLOGY Pub Date : 2020-12-12 DOI: 10.11606/issn.2316-9079.v19i2p189-200
E. Muscat, R. Menegucci, R. M. Tanaka, Elsie Rotenberg, Matheus de Toledo Moroti, Mariana Pedrozo, D. R. Stuginski, I. Sazima
Natural history of the marsupial frog Gastrotheca albolineata (Anura: Hemiphractidae) in lowland Brazilian Atlantic Forest. Gastrotheca albolineata is a marsupial frog endemic to the Atlantic Forest in southeastern Brazil. It remains poorly studied in nature and is uncommon in herpetological collections. We studied the natural history of G. albolineata during a four-year period (2015 to 2019), in Ubatuba, Sao Paulo state, Brazil, at its southernmost distribution. Our results show that G. albolineata is arboreal, perches from low to medium heights, and breeds during the dry season without chorus aggregation. Calling activity occurs during the day but is more intense during the first half of the night. We used dorsal body markings to identify individuals. Six individuals were recaptured during the study, indicating site fidelity during the active season. The defensive repertory of G. albolineata contains seven different behaviors, including a high-pitched distress call. Egg development in the female’s dorsal pouch took at least 87 days, and fully formed froglets were born with a snout–vent length of 16 mm. Our data substantially add to the knowledge of the natural history of Brazilian marsupial frogs and can be helpful to delineate conservation strategies for elusive species such as G. albolineata.
巴西大西洋低地森林腹腹蛙(无尾目:腹腹蛙科)的自然历史。腹腹蛙是巴西东南部大西洋森林特有的一种有袋蛙。它在自然界的研究仍然很少,在爬行动物收藏中并不常见。我们研究了巴西圣保罗州乌巴图巴最南端分布的G. albolineata在4年期间(2015年至2019年)的自然史。研究结果表明,青鸟为树栖动物,栖息在低至中等高度,在旱季繁殖,没有合唱聚集。叫声活动发生在白天,但在前半夜更为强烈。我们用背部的身体标记来识别个体。在研究期间,有6只个体被重新捕获,表明在活动季节的现场保真度。白桦的防御能力包括七种不同的行为,包括一种高音的求救信号。卵在雌性背囊中的发育至少需要87天,完全成形的小蛙出生时的口孔长度为16毫米。我们的数据大大增加了对巴西有袋蛙自然历史的了解,并有助于描绘诸如G. albolineata等难以捉摸的物种的保护策略。
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引用次数: 0
Novel predator-prey interactions of Rhinella major (Anura: Bufonidae) from an urban area in northern Brazil 巴西北部城市地区大型犀牛(无尾目:蟾蜍科)捕食者-猎物相互作用的新发现
IF 0.4 4区 生物学 Q4 ZOOLOGY Pub Date : 2020-12-12 DOI: 10.11606/issn.2316-9079.v19i2p287-292
Fillipe PEDROSO-SANTOS, C. E. Costa-Campos
Direct field observations of predator-prey interactions improve our knowledge about species niches and the ways in which vertebrate and invertebrate assemblages are structured, as well as aiding in the conservation of species (Vitt and Caldwell 2009, van den Burg and Miguel 2020). As anurans grow, the degree of capture specialization by type and size of prey changes (Donnelly 1991, Simon and Toft 1991), but the increase in prey size with ontogeny is more than a passive effect of selection for larger prey in some species of leaf-litter frogs (Lima et al. 2000). An organism’s diet is influenced by its morphology, physiology, and behavior in response to selective pressures and phylogenetic constraints (Toft 1981, Duellman and Trueb 1994, Wells 2007, Solé et al. 2009). Anurans have been shown to be flexible predators in trophic chains (Toledo et al. 2007, Oliveira et al. 2013). Data on anuran’s diet inform us about their life history, environmental conditions, and
对捕食者-猎物相互作用的直接实地观察提高了我们对物种生态位以及脊椎动物和无脊椎动物群落结构的了解,并有助于物种保护(Vitt和Caldwell,2009年,van den Burg和Miguel,2020年)。随着无尾蛙的生长,猎物类型和大小的捕获专业化程度会发生变化(Donnelly 1991,Simon和Toft 1991),但随着个体发育,猎物大小的增加不仅仅是一些种类的落叶蛙选择更大猎物的被动影响(Lima等人,2000)。生物体的饮食受到其形态、生理和行为的影响,以应对选择性压力和系统发育限制(Toft 1981,Duellman和Trueb 1994,Wells 2007,Solé等人2009)。Anurans已被证明是营养链中灵活的捕食者(Toledo等人,2007年,Oliveira等人,2013年)。关于阿努兰饮食的数据告诉我们他们的生活史、环境条件和
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引用次数: 3
Observations on metamorphosing tadpoles of Hyalinobatrachium orientale (Anura: Centrolenidae) 东方透明蛙蝌蚪的变态观察(无尾目:蟾科)
IF 0.4 4区 生物学 Q4 ZOOLOGY Pub Date : 2020-12-12 DOI: 10.11606/issn.2316-9079.v19i2p217-223
Isabel Byrne, Robyn Thomson, Rory R. Thomson, Duncan Murray-Uren, J. Downie
Observations on metamorphosing tadpoles of Hyalinobatrachium orientale (Anura: Centrolenidae). Metamorphosis, when anuran amphibians resorb their tails and remodel their mouthparts and internal organs, is a vulnerable stage in the frog’s life history. As larvae metamorphose from tadpoles to adult frogs, they are neither suited to aquatic life nor ready for active terrestrial life. Previous studies have examined the duration of metamorphosis in a range of species, with respect to tadpole size, habitat, and other factors; however, the duration of metamorphosis relative to where it takes place has not been reported in centrolenids. In Hyalinobatrachium orientale, metamorphosis takes place on the upper surfaces of the leaves of low understory plants and lasts 3.5–4.0 days, a little longer than expected for the tadpole of this body size. Metamorphs seem to shift their perches from leaf to leaf randomly. There are no significant differences in the temperature or relative humidity of the upper and lower surfaces of leaves in the forest understory; thus, the presence of the metamorphs on the upper surfaces of leaves may provide moisture from the upper story vegetation after rain and protect them from terrestrial predators.
东方透明管蛛(Anura:中央蛛科)变态蝌蚪的观察。变形,当无尾两栖动物吸收尾巴,重塑口器和内脏时,是青蛙生命史上的一个脆弱阶段。随着幼虫从蝌蚪变成成年青蛙,它们既不适合水生生活,也不适合活跃的陆地生活。先前的研究考察了一系列物种的变态持续时间,包括蝌蚪的大小、栖息地和其他因素;然而,在着丝粒中,变态发生的持续时间与发生地点的关系还没有报道。在东方海蛙中,变态发生在低矮林下植物的叶子上表面,持续3.5–4.0天,比这种体型的蝌蚪预期的要长一点。变形虫似乎会随意地将它们的栖息位置从一片叶子移到另一片叶子。林下层树叶上下表面的温度或相对湿度没有显著差异;因此,树叶上表面的变态可能会在雨后为上层植被提供水分,并保护它们免受陆地捕食者的侵害。
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引用次数: 0
New records of avian and interspecific predation in lizards of the genus Liolaemus (Squamata: Liolaemidae) 蜥蜴属鸟类和种间捕食的新记录(角鲨目:蜥蜴科)
IF 0.4 4区 生物学 Q4 ZOOLOGY Pub Date : 2020-12-12 DOI: 10.11606/issn.2316-9079.v19i2p267-272
J. Troncoso-Palacios, Yery Marambio-Alfaro, I. Vargas, Daniel Hiriart
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引用次数: 1
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Phyllomedusa
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