Pub Date : 2024-05-06DOI: 10.1515/mammalia-2024-0038
Marcus Vinícius Brandão, Karine Santos Ferreira, Tiago Teixeira Dornas, Leandro Uceli Maioli, Juliana Gualda de Barros, Caroline Cotrim Aires, Ana Yoko Ykeuti Meiga
The bushy-tailed opossum Glironia venusta is a rare marsupial from Amazonia, with most of the known records obtained through scant visualization/photography events or by few captures/deposit of specimens in scientific collections. This study presents unusual records for the species: the first record of individuals dead due to vehicle collision, and a specimen opportunistically trapped into a mistnet. The data presented herein provide additional morphometrical data and ecological insights about G. venusta. Although this species is considered essentially arboreal, our records indicate that movements on ground are part of its habits.
蒲尾负鼠Glironia venusta是亚马逊河流域的一种稀有有袋类动物，大部分已知记录都是通过寥寥无几的可视化/摄影活动或少数捕获/科学收藏的标本获得的。本研究为该物种提供了不寻常的记录：首次记录到因车辆碰撞而死亡的个体，以及一个偶然被困在迷网中的标本。本文提供的数据为 G. venusta 提供了更多的形态数据和生态见解。尽管该物种被认为基本上是树栖的，但我们的记录表明，地面活动也是其生活习性的一部分。
{"title":"New and unusual records of Glironia venusta (didelphimorphia, didelphidae) in Brazil","authors":"Marcus Vinícius Brandão, Karine Santos Ferreira, Tiago Teixeira Dornas, Leandro Uceli Maioli, Juliana Gualda de Barros, Caroline Cotrim Aires, Ana Yoko Ykeuti Meiga","doi":"10.1515/mammalia-2024-0038","DOIUrl":"https://doi.org/10.1515/mammalia-2024-0038","url":null,"abstract":"The bushy-tailed opossum <jats:italic>Glironia venusta</jats:italic> is a rare marsupial from Amazonia, with most of the known records obtained through scant visualization/photography events or by few captures/deposit of specimens in scientific collections. This study presents unusual records for the species: the first record of individuals dead due to vehicle collision, and a specimen opportunistically trapped into a mistnet. The data presented herein provide additional morphometrical data and ecological insights about <jats:italic>G. venusta</jats:italic>. Although this species is considered essentially arboreal, our records indicate that movements on ground are part of its habits.","PeriodicalId":49892,"journal":{"name":"Mammalia","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140887165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-05-06DOI: 10.1515/mammalia-2024-0003
M. Abdul Aziz, Aung Shew Nu Marma, Ameer Hamza, Md. Abdur Rahman, Md. Aminur Rahman, Sumaiya Naznin
We report the first record of the Great Himalayan leaf-nosed bat, Hipposideros armiger from a cave in the Chittagong Hill Tracts of Bangladesh. We confirmed its identity using morphometric measurements and visual observations supplemented with photographs. This report steps up the number of national bat fauna, suggesting countrywide surveys for a comprehensive inventory of bats for Bangladesh.
{"title":"First record of Great Himalayan leaf-nosed bat, Hipposideros armiger (Hipposideridae) from Bangladesh","authors":"M. Abdul Aziz, Aung Shew Nu Marma, Ameer Hamza, Md. Abdur Rahman, Md. Aminur Rahman, Sumaiya Naznin","doi":"10.1515/mammalia-2024-0003","DOIUrl":"https://doi.org/10.1515/mammalia-2024-0003","url":null,"abstract":"We report the first record of the Great Himalayan leaf-nosed bat, <jats:italic>Hipposideros armiger</jats:italic> from a cave in the Chittagong Hill Tracts of Bangladesh. We confirmed its identity using morphometric measurements and visual observations supplemented with photographs. This report steps up the number of national bat fauna, suggesting countrywide surveys for a comprehensive inventory of bats for Bangladesh.","PeriodicalId":49892,"journal":{"name":"Mammalia","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140887186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-28DOI: 10.1515/mammalia-2024-0001
Wellington Hannibal, Daiene L. H. Sousa, Thomaz R. F. Sinani, Paulo Landgref Filho
The marsh rat (Holochilus chacarius) is considered a specialist herbivorous rodent. In this study, we report the first predation event of an anuran (Pseudis platensis) by a marsh rat in the Pantanal wetlands, South America. This unprecedent event in a flooded wetland in the municipality of Corumbá, Mato Grosso do Sul state, southwestern Brazil. Due to the flashlight, the rodent ceased its predatory activity and left, carrying the anuran in its mouth. Our findings contribute to the natural history of the marsh rat, highlighting that this herbivorous rodent can incorporate fresh animal matter into its diet.
{"title":"First predation event of an anuran by Holochilus chacarius in the Pantanal wetland, central portion of South America","authors":"Wellington Hannibal, Daiene L. H. Sousa, Thomaz R. F. Sinani, Paulo Landgref Filho","doi":"10.1515/mammalia-2024-0001","DOIUrl":"https://doi.org/10.1515/mammalia-2024-0001","url":null,"abstract":"The marsh rat (<jats:italic>Holochilus chacarius</jats:italic>) is considered a specialist herbivorous rodent. In this study, we report the first predation event of an anuran (<jats:italic>Pseudis platensis</jats:italic>) by a marsh rat in the Pantanal wetlands, South America. This unprecedent event in a flooded wetland in the municipality of Corumbá, Mato Grosso do Sul state, southwestern Brazil. Due to the flashlight, the rodent ceased its predatory activity and left, carrying the anuran in its mouth. Our findings contribute to the natural history of the marsh rat, highlighting that this herbivorous rodent can incorporate fresh animal matter into its diet.","PeriodicalId":49892,"journal":{"name":"Mammalia","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140809021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-22DOI: 10.1515/mammalia-2024-0024
Tariq Ahmad, Bo Li
The Indian pangolin (Manis crassicaudata) is the only member of the order Pholidota found in Pakistan. The current study was designed to compare the mortality rate and causes of mortality of Indian pangolin from eight districts, i.e., four from Khyber Pakhtunkhwa and four from Punjab, Pakistan during 2019–2022. Data were collected by using self-designed questionnaires (n = 340) and social media reports. Most of the data were collected from Facebook 53 %, followed by Instagram (22 %), WhatsApp (17 %), and OLX (10 %). Mean and standard deviation were computed for district-wise killing (mean ± SD 15.25 ± 10.21), season-wise killing (mean ± SD 30.50 ± 9.8), month wise killing (mean ± SD 10.38 ± 4.19) and area wise killing (mean ± SD 40.7 ± 17.6). The killing of 179 Indian pangolins was recorded in four districts of Khyber Pakhtunkhwa, while in Punjab 59 Indian pangolins were killed. According to interviewees, 33 % of the mortality of Indian pangolin was caused by illegal killing followed by human settlement (17 %), agricultural practices (13 %), mites and ticks (11 %), natural mortality (8 %), accidents (7 %), myth (6 %), and floods (5 %). District wildlife departments of Khyber Pakhtunkhwa and Punjab arrested many people (KPK n = 83, Punjab n = 57) during 2019–2022. The highest fines were imposed by the Chakwal Wildlife Department, i.e., 20,000–60,000 PKR along with 1–4 months of imprisonment sentences. Eight dead pangolins were recovered among those six were male (75 %) and two were female (25 %). Principal component analysis (PCA) showed that PC appears to be influenced the most by mites and ticks (MT), myth, natural mortality (NM) and “flood” given their strong loadings. PC2 was heavily influenced by killed for illegal trade (KFIT), accident, and agriculture practices (AP) due to their significant negative loadings. PC3 has NM and AP as the dominant variables, KFIT, also playing a role but in the opposite direction. PC4 showed strong influences from NM (negative) and flood (positive). We concluded that the illegal killing of Indian pangolin is very high. Conservation efforts are crucial to protect these unique and endangered creatures.
{"title":"Drivers of Indian pangolin (Manis crassicaudata) mortality in Central and Western Pakistan","authors":"Tariq Ahmad, Bo Li","doi":"10.1515/mammalia-2024-0024","DOIUrl":"https://doi.org/10.1515/mammalia-2024-0024","url":null,"abstract":"\u0000 The Indian pangolin (Manis crassicaudata) is the only member of the order Pholidota found in Pakistan. The current study was designed to compare the mortality rate and causes of mortality of Indian pangolin from eight districts, i.e., four from Khyber Pakhtunkhwa and four from Punjab, Pakistan during 2019–2022. Data were collected by using self-designed questionnaires (n = 340) and social media reports. Most of the data were collected from Facebook 53 %, followed by Instagram (22 %), WhatsApp (17 %), and OLX (10 %). Mean and standard deviation were computed for district-wise killing (mean ± SD 15.25 ± 10.21), season-wise killing (mean ± SD 30.50 ± 9.8), month wise killing (mean ± SD 10.38 ± 4.19) and area wise killing (mean ± SD 40.7 ± 17.6). The killing of 179 Indian pangolins was recorded in four districts of Khyber Pakhtunkhwa, while in Punjab 59 Indian pangolins were killed. According to interviewees, 33 % of the mortality of Indian pangolin was caused by illegal killing followed by human settlement (17 %), agricultural practices (13 %), mites and ticks (11 %), natural mortality (8 %), accidents (7 %), myth (6 %), and floods (5 %). District wildlife departments of Khyber Pakhtunkhwa and Punjab arrested many people (KPK n = 83, Punjab n = 57) during 2019–2022. The highest fines were imposed by the Chakwal Wildlife Department, i.e., 20,000–60,000 PKR along with 1–4 months of imprisonment sentences. Eight dead pangolins were recovered among those six were male (75 %) and two were female (25 %). Principal component analysis (PCA) showed that PC appears to be influenced the most by mites and ticks (MT), myth, natural mortality (NM) and “flood” given their strong loadings. PC2 was heavily influenced by killed for illegal trade (KFIT), accident, and agriculture practices (AP) due to their significant negative loadings. PC3 has NM and AP as the dominant variables, KFIT, also playing a role but in the opposite direction. PC4 showed strong influences from NM (negative) and flood (positive). We concluded that the illegal killing of Indian pangolin is very high. Conservation efforts are crucial to protect these unique and endangered creatures.","PeriodicalId":49892,"journal":{"name":"Mammalia","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140675459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-15DOI: 10.1515/mammalia-2023-0136
Gertruide D. Massoh, Iris Kirsten, Alain C. Wandji, Ghislain F. Difouo, Franklin T. Simo, Thomas Breuer, Hans Bauer, Serge A. Kamgang, Didier Bastin, André Mvéimané, Aurélien Ndiye, Joseph L. Tamesse, Sévilor Kekeunou
Color mutations are a common phenomenon in vertebrates. Among these anomalies, albinism is the most common in wild mammals. We deployed 78 camera traps across the Yoko Council Forest (YCF) to inventory medium to large-sized terrestrial mammals and we obtained a total effort of 17,981 operational camera trap days, giving 169 detections of long-nosed mongoose. During this study, we obtained two independent detections of albino long-nosed mongooses (Xenogale naso). To our knowledge, this is the first report of albinism in this taxon.
肤色突变是脊椎动物的一种常见现象。其中，白化病在野生哺乳动物中最为常见。我们在横沟议会森林（Yoko Council Forest，YCF）部署了78个相机陷阱，以清点中型至大型陆生哺乳动物，我们共获得了17981个相机陷阱工作天数，发现了169只长鼻獴。在这项研究中，我们发现了两只白化长鼻獴（Xenogale naso）。据我们所知，这是该分类群中首次发现白化现象。
{"title":"First record of albinism in long-nosed mongoose Xenogale naso documented with camera traps in the Yoko Council Forest, Centre Cameroon","authors":"Gertruide D. Massoh, Iris Kirsten, Alain C. Wandji, Ghislain F. Difouo, Franklin T. Simo, Thomas Breuer, Hans Bauer, Serge A. Kamgang, Didier Bastin, André Mvéimané, Aurélien Ndiye, Joseph L. Tamesse, Sévilor Kekeunou","doi":"10.1515/mammalia-2023-0136","DOIUrl":"https://doi.org/10.1515/mammalia-2023-0136","url":null,"abstract":"Color mutations are a common phenomenon in vertebrates. Among these anomalies, albinism is the most common in wild mammals. We deployed 78 camera traps across the Yoko Council Forest (YCF) to inventory medium to large-sized terrestrial mammals and we obtained a total effort of 17,981 operational camera trap days, giving 169 detections of long-nosed mongoose. During this study, we obtained two independent detections of albino long-nosed mongooses (<jats:italic>Xenogale naso</jats:italic>). To our knowledge, this is the first report of albinism in this taxon.","PeriodicalId":49892,"journal":{"name":"Mammalia","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140600705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-13DOI: 10.1515/mammalia-2023-0017
Thamara Fariñas Torres, Mauro Schiaffini, Sebastian Cirignoli, María Amelia Chemisquy
The crab-eating fox Cerdocyon thous is one of South America’s most common species of canids; its generalist habits and plasticity allowed the species to adapt to numerous habitats and human presence. In 2020, we registered a specimen of C. thous on a trap camera placed in the vicinity of the Huaco River in La Rioja Province, Argentina. This record was the starting point for evaluating past and present environmental niche models (ENMs) of the species throughout their entire distribution in South America. ENMs models suggest that the presence of C. thous in La Rioja has low suitability values and suggest that we may be facing a sink population scenario due to the low frequency of records in the province. Also, the model indicated that the parameters delimiting the areas with the highest suitability values are related to temperature, isothermality, and precipitation. Long-term studies in the region are needed to determine the population dynamics of C. thous in La Rioja.
{"title":"Presence of the crab-eating fox Cerdocyon thous in La Rioja, Argentina, and implications for its geographic and environmental niche modeling","authors":"Thamara Fariñas Torres, Mauro Schiaffini, Sebastian Cirignoli, María Amelia Chemisquy","doi":"10.1515/mammalia-2023-0017","DOIUrl":"https://doi.org/10.1515/mammalia-2023-0017","url":null,"abstract":"The crab-eating fox <jats:italic>Cerdocyon thous</jats:italic> is one of South America’s most common species of canids; its generalist habits and plasticity allowed the species to adapt to numerous habitats and human presence. In 2020, we registered a specimen of <jats:italic>C. thous</jats:italic> on a trap camera placed in the vicinity of the Huaco River in La Rioja Province, Argentina. This record was the starting point for evaluating past and present environmental niche models (ENMs) of the species throughout their entire distribution in South America. ENMs models suggest that the presence of <jats:italic>C. thous</jats:italic> in La Rioja has low suitability values and suggest that we may be facing a sink population scenario due to the low frequency of records in the province. Also, the model indicated that the parameters delimiting the areas with the highest suitability values are related to temperature, isothermality, and precipitation. Long-term studies in the region are needed to determine the population dynamics of <jats:italic>C. thous</jats:italic> in La Rioja.","PeriodicalId":49892,"journal":{"name":"Mammalia","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140601217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-12DOI: 10.1515/mammalia-2023-0170
Ahana A. Fernandez, Marisa Tietge, Simon Ripperger
Chromatic disorders in bats are typically documented by brief, incidental observations of individuals at day roosts or by accidental captures during mist-netting. Such descriptions usually lack observations on social behaviour including interactions between bats with aberrant pigmentation and other individuals. Here, we report the first observation of leucism in the greater sac-winged bat Saccopteryx bilineata. Over the course of six weeks, we were able to follow the development of a wild pup with a conspicuous aberrant pigmentation, by observing it in its day roost. Our observations indicate that the vocal and behavioural development of the pup was entirely normal, as well as the integration into its social group. After six weeks, when the pup was already foraging individually, it did not return to its colony in the morning, indicating that it may have been preyed on.
{"title":"Observations of a greater sac-winged bat pup (Saccopteryx bilineata) with a chromatic disorder","authors":"Ahana A. Fernandez, Marisa Tietge, Simon Ripperger","doi":"10.1515/mammalia-2023-0170","DOIUrl":"https://doi.org/10.1515/mammalia-2023-0170","url":null,"abstract":"Chromatic disorders in bats are typically documented by brief, incidental observations of individuals at day roosts or by accidental captures during mist-netting. Such descriptions usually lack observations on social behaviour including interactions between bats with aberrant pigmentation and other individuals. Here, we report the first observation of leucism in the greater sac-winged bat <jats:italic>Saccopteryx bilineata.</jats:italic> Over the course of six weeks, we were able to follow the development of a wild pup with a conspicuous aberrant pigmentation, by observing it in its day roost. Our observations indicate that the vocal and behavioural development of the pup was entirely normal, as well as the integration into its social group. After six weeks, when the pup was already foraging individually, it did not return to its colony in the morning, indicating that it may have been preyed on.","PeriodicalId":49892,"journal":{"name":"Mammalia","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140600716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-12DOI: 10.1515/mammalia-2023-0144
Douglas Brandon-Jones
In 1750 Pierre Poivre donated the holotype of the douc monkey Pygathrix nemaeus to R.-A. F. de Réaumur. Its type locality is here restricted from “Cochinchine” to near Da Nang, Vietnam. In 1757, Buffon appropriated the holotype for the King’s collection, wrongly inferring that the species lacks ischial callosities, and conflating it with the sifaka of Madagascar. “D’ouc” is evidently a corruption of Voọc, the Vietnamese word for colobine monkey. In 1819, a French crew shot 100 doucs before breakfast on a mountain near Da Nang. In 2016, the whole mountain population was estimated at 70. By 1831 doucs had learnt to fear gunfire, but locals accepted their proximity, and provided some protection from meat-seeking foreigners. Several doucs were collected for museums in the 19th and 20th century; in 1897 two even lived for a fortnight at the Jardin des Plantes, Paris. The douc was observed and collected near Da Nang during its miraculous survival of the Vietnam War; its evergreen forest habitat surprisingly resilient. This situation is rapidly deteriorating, as forests are reduced to isolated pockets, and hunting prohibitions unenforced. The closely-monitored Mount Son Tra douc population was expanding, but tourist development is illegally eroding the Nature Reserve.
{"title":"The scientific discovery and subsequent history of the douc monkey Pygathrix nemaeus (Linnaeus, 1771) near Da Nang, Vietnam","authors":"Douglas Brandon-Jones","doi":"10.1515/mammalia-2023-0144","DOIUrl":"https://doi.org/10.1515/mammalia-2023-0144","url":null,"abstract":"In 1750 Pierre Poivre donated the holotype of the douc monkey <jats:italic>Pygathrix nemaeus</jats:italic> to R.-A. F. de Réaumur. Its type locality is here restricted from “Cochinchine” to near Da Nang, Vietnam. In 1757, Buffon appropriated the holotype for the King’s collection, wrongly inferring that the species lacks ischial callosities, and conflating it with the sifaka of Madagascar. “D’ouc” is evidently a corruption of Voọc, the Vietnamese word for colobine monkey. In 1819, a French crew shot 100 doucs before breakfast on a mountain near Da Nang. In 2016, the whole mountain population was estimated at 70. By 1831 doucs had learnt to fear gunfire, but locals accepted their proximity, and provided some protection from meat-seeking foreigners. Several doucs were collected for museums in the 19th and 20th century; in 1897 two even lived for a fortnight at the Jardin des Plantes, Paris. The douc was observed and collected near Da Nang during its miraculous survival of the Vietnam War; its evergreen forest habitat surprisingly resilient. This situation is rapidly deteriorating, as forests are reduced to isolated pockets, and hunting prohibitions unenforced. The closely-monitored Mount Son Tra douc population was expanding, but tourist development is illegally eroding the Nature Reserve.","PeriodicalId":49892,"journal":{"name":"Mammalia","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140600704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-10DOI: 10.1515/mammalia-2023-0055
Nelson F. Galvis, Andrés Link, Diego Mosquera, Gabriela Vinueza-Hidalgo, Lisa Carrillo, Alex Mauricio Mopán-Chilito, Sebastián O. Montilla
Kinkajous are one of the most widely distributed Neotropical mammals, nonetheless, their nocturnal habits have posed challenges on the study of their ecology and behavior. Here, we used arboreal camera trapping in a pristine Amazonian forest in Ecuador, and ad libitum data from direct encounters in a lowland and a highland forest in Colombia to describe their activity patterns and describe anecdotal data on their diet and reproductive behaviors. As expected, kinkajous are strictly nocturnal and seem to be active throughout the entire night, although in our study there was less activity towards the beginning and the end of the night. Kinkajous were observed to be mostly solitary, rarely in groups of two to three adult individuals. Although their diet has not been described in detail, fruits from Moraceae and Urticaceae appear to be important components of their diet. Their reproductive behavior involves an isolated pair of kinkajous, and may be interrupted by other males. Pairs seem to meet for reproductive purposes and range together for several hours, during which courtship may take place, ending in copulation, which lasts for approximately 3 min. After copulation, the male and female appear to separate and return to their solitary habits. The results of this study complement the scarce information on the elusive kinkajous in the Neotropical forests.
{"title":"Notes on the ecology, activity patterns and behavior of the kinkajou (Potos flavus)","authors":"Nelson F. Galvis, Andrés Link, Diego Mosquera, Gabriela Vinueza-Hidalgo, Lisa Carrillo, Alex Mauricio Mopán-Chilito, Sebastián O. Montilla","doi":"10.1515/mammalia-2023-0055","DOIUrl":"https://doi.org/10.1515/mammalia-2023-0055","url":null,"abstract":"Kinkajous are one of the most widely distributed Neotropical mammals, nonetheless, their nocturnal habits have posed challenges on the study of their ecology and behavior. Here, we used arboreal camera trapping in a pristine Amazonian forest in Ecuador, and <jats:italic>ad libitum</jats:italic> data from direct encounters in a lowland and a highland forest in Colombia to describe their activity patterns and describe anecdotal data on their diet and reproductive behaviors. As expected, kinkajous are strictly nocturnal and seem to be active throughout the entire night, although in our study there was less activity towards the beginning and the end of the night. Kinkajous were observed to be mostly solitary, rarely in groups of two to three adult individuals. Although their diet has not been described in detail, fruits from Moraceae and Urticaceae appear to be important components of their diet. Their reproductive behavior involves an isolated pair of kinkajous, and may be interrupted by other males. Pairs seem to meet for reproductive purposes and range together for several hours, during which courtship may take place, ending in copulation, which lasts for approximately 3 min. After copulation, the male and female appear to separate and return to their solitary habits. The results of this study complement the scarce information on the elusive kinkajous in the Neotropical forests.","PeriodicalId":49892,"journal":{"name":"Mammalia","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140600832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2024-04-09DOI: 10.1515/mammalia-2023-0100
Kiros Welegerima, Rhodes H. Makundi, Bram Vanden Broecke, Nsajigwa E. Mbije, Yonas Meheretu
We investigated the breeding activity of three sympatric rodent species: Stenocephalemys albipes, Mastomys awashensis, and Acomys cahirinus, in the semi-arid region of Tigray in northern Ethiopia, using mark-recapture data, to determine the influence of rainfall on their breeding patterns within exclosure (i.e., protected area from livestock grazing). Breeding activities of S. albipes and M. awashensis commenced during the wet season, continued into the early dry season, and ceased during the subsequent dry season. The proportion of breeding females reached its peak during the wet season, gradually declining until the dry season. In contrast, A. cahirinus exhibited a different breeding strategy, with year-round breeding, including during the dry season, a period characterized by limited resources. A significant difference in the proportion of breeding females among the three species was observed across seasons. Furthermore, all species shared a common trend of heightened breeding activity, particularly at the conclusion of the wet season and the onset of the early dry season. These findings enhance our understanding of the interplay between rainfall and seasonal breeding within exclosures, while other variables remain constant. Moreover, the region’s future plans for managing rodents and the establishment of exclosures must take this information into account.
我们调查了三种同域啮齿动物的繁殖活动：在埃塞俄比亚北部提格雷半干旱地区，我们利用标记重捕数据研究了Stenocephalemys albipes、Mastomys awashensis和Acomys cahirinus的繁殖活动，以确定降雨对它们在围栏（即免受牲畜放牧的保护区）内繁殖模式的影响。S. albipes 和 M. awashensis 的繁殖活动从雨季开始，一直持续到旱季初期，并在随后的旱季停止。雌性繁殖比例在雨季达到高峰，之后逐渐下降，直至旱季。相比之下，A. cahirinus表现出不同的繁殖策略，全年都在繁殖，包括在资源有限的旱季。三个物种的繁殖雌性比例在不同季节存在显著差异。此外，所有物种都有一个共同的趋势，即繁殖活动加剧，尤其是在雨季结束和旱季开始初期。这些发现加深了我们对在其他变量保持不变的情况下，降雨与围栏内季节性繁殖之间相互作用的理解。此外，该地区未来的啮齿动物管理计划和隔离区的建立必须考虑到这些信息。
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