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2022

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New Records Of Free-Living Microturbellarians From The Chillón River, Peru, Jhoe Reyes, Ruperto Severino, Francisco Brusa Dec 2022

New Records Of Free-Living Microturbellarians From The Chillón River, Peru, Jhoe Reyes, Ruperto Severino, Francisco Brusa

Neotropical Biodiversity

Microturbellarians are all mostly small free-living Platyhelminthes that do not belong to either the Polycladida or Tricladida order. This group includes species of the clades Catenulida and Rhabditophora. Species of microturbellarians are known to live in marine and continental waters such as rivers, where they are diverse and abundant. However, there are few records of microturbellarians in most of the rivers of the Pacific slope of Peru. Here, we report eight species of microturbellarians from the Chillón River, in the central region of Peru. Of the total species recorded, five (Gieysztoria cuspidata, G. bellis, Myostenostomum vanderlandi, Stenostomum tuberculosum and S. …

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A New Neotropical And Southernmost Distributional Record Of Freshwater Sponge Dosilia Radiospiculata (Mills, 1888) (Porifera: Demospongie: Spongillidae) From Honduras, Monshie Briceño, Julio E. Mérida, Anthonie Andino-Mazariegos, Gustavo A. Cruz Dec 2022

A New Neotropical And Southernmost Distributional Record Of Freshwater Sponge Dosilia Radiospiculata (Mills, 1888) (Porifera: Demospongie: Spongillidae) From Honduras, Monshie Briceño, Julio E. Mérida, Anthonie Andino-Mazariegos, Gustavo A. Cruz

Neotropical Biodiversity

We added a new record of a freshwater sponge at the family level from Honduras. The presence of the Dosilia genus in Central America was confirmed, extending its distribution by 890 linear miles south of Mexico. This constitutes a new southern range extension of D. radiospiculata from the Nearctic to Neotropical region. The specimen was collected from the Pacific slope of Honduras. Although sponges constitute an important element of a freshwater ecosystem, environmental pressures and contamination of rivers or other aquatic environments, where they exist, have not been considered under any category of protection.

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Current And Future Geographic Patterns Of Bird Diversity Dimensions Of The Yucatan Peninsula And Their Representativeness In Natural Protected Areas, Jazmín Escobar-Luján, Sandra M. Castaño-Quintero, Fabricio Villalobos, Andrés Lira-Noriega, Xavier Chiappa-Carrara, Carlos Yañez-Arenas Dec 2022

Current And Future Geographic Patterns Of Bird Diversity Dimensions Of The Yucatan Peninsula And Their Representativeness In Natural Protected Areas, Jazmín Escobar-Luján, Sandra M. Castaño-Quintero, Fabricio Villalobos, Andrés Lira-Noriega, Xavier Chiappa-Carrara, Carlos Yañez-Arenas

Neotropical Biodiversity

The deviation of expected relationships between taxonomic (TD), phylogenetic (PD), and functional (FD) diversity may inform about some processes (speciation, extinction, competition, and migration) responsible for current biodiversity patterns. We studied the relationship between different dimensions of bird diversity (TD, PD, and FD) of the Yucatan Peninsula (YP) in a context of future climate change. We used ecological niche models to predict the current and future potential distribution of 257 bird species of the YP and estimate their TD, PD, and FD. We calculated a standardized effect size of PD (SES.PD) and FD (SES.FD) to provide an estimation of phylogenetic …

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Are White-Lipped Peccaries From Argentinean Yungas Looking To A Promising Future?, Juan I. Reppucci, Soledad De Bustos, Flavia Caruso, Rocio S. Fleitas Quintana, Pablo G. Perovic Dec 2022

Are White-Lipped Peccaries From Argentinean Yungas Looking To A Promising Future?, Juan I. Reppucci, Soledad De Bustos, Flavia Caruso, Rocio S. Fleitas Quintana, Pablo G. Perovic

Neotropical Biodiversity

The white-lipped peccary (Tayassu pecari) is considered a key species for its role as an ecosystem engineer. Given their important ecological function, there is a great concern in the scientific community regarding the many reports of disappearances or great abundance reductions throughout its distribution (from southern Mexico to northern Argentina). Based on an extensive survey effort, we report new data of presence of WLP after a period of no detections in the Argentine Yungas. The study was conducted in the Yungas ecoregion, provinces of Jujuy and Salta, Argentina. Data was collected from camera trap, direct sightings and footprints during 2013–2021. …

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A Novel Biomaterial Platform For Cardiac Tissue Engineering, Andrew House Dec 2022

A Novel Biomaterial Platform For Cardiac Tissue Engineering, Andrew House

Dissertations

Heart disease is one of the leading causes of death in the world. With a growing demand for in vitro cardiac models that can recapitulate the complex physiology of the cardiac tissue, there is a desire to create novel therapies and treatments. However, due to a lack of fundamental understanding of the heart's inflammatory response to myocardial infarction, the development of new therapies is both time consuming and costly. In this work, a novel approach to fabricating a dynamic hydrogel cardiac platform is reported. This platform better mimics the dynamic changes occurring in the native cardiac tissue microenvironment during cardiac …

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Design And Implementation Of Cardiopulmonary Resuscitation Simulation Model, Mbazingwa Mkiramweni Dec 2022

Design And Implementation Of Cardiopulmonary Resuscitation Simulation Model, Mbazingwa Mkiramweni

Tanzania Journal of Engineering and Technology (TJET)

Cardiopulmonary resuscitation (CPR) is a life-saving procedure that can multiply a person's chances of survival after a cardiac arrest. The effectiveness of CPR procedures is heavily influenced by the individual skills of the rescuer providing assistance. Chest compressions delivered at an appropriate depth and rate, allowing full chest recoil and with minimal interruptions, are critical for improving cardiac arrest survival. The lack of quality CPR training models in developing countries has a significant impact on the quality of CPR training and skills acquired. Therefore, in this paper, we aim at improving CPR training by designing a high-fidelity CPR training manikin. …

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Performance Evaluation Of Udsm Network To Deliver Multimedia Elearning Contents: Case Of Coict, Mercy Mbise Dec 2022

Performance Evaluation Of Udsm Network To Deliver Multimedia Elearning Contents: Case Of Coict, Mercy Mbise

Tanzania Journal of Engineering and Technology (TJET)

The use of technology in education in Sub-Saharan Africa has been reported to be hindered by many factors including inadequate Information and Communication Technology (ICT) infrastructure, low internet speed, and lack of skills to use educational technologies. This paper aim at evaluating how the available ICT infrastructure at the College of Information and Communication Technologies (CoICT) can support, with acceptable Quality of Service (QoS), the delivery of multimedia applications for eLearning services. The evaluation was performed over a network testbed implemented in a computer laboratory for wired and wireless connections. The testbed consisted of five personal computers (PCs) connected via …

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Angiogenic Supports For Microvascular Engineering, Zain Siddiqui Dec 2022

Angiogenic Supports For Microvascular Engineering, Zain Siddiqui

Dissertations

Ischemic tissue disease is caused by a lack of circulation / blood supply to tissue. This can be treated by introducing a number of angiogenic (pro-blood vessel forming) factors into the tissue. This work presents strategies for ischemic tissue treatment utilizing a novel proangiogenic self-assembling peptide hydrogel platform. To demonstrate the utility of this platform, its use alone as an angiogenic therapeutic (both alone as a self-assembling hydrogel and with two-component systems), and its ability to vascularize implants is explored. Due to these angiogenic scaffolds demonstrating efficacy to regenerate microvasculature, this work evaluates diseases that can be treated by the …

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The Correlation Of Scientific Reasoning And Argumentation (Sra): An Analysis Into Prospective Biology Teachers In Plant Physiology, Maisuna Kundariati, Herawati Susilo, Balqis Balqis Dec 2022

The Correlation Of Scientific Reasoning And Argumentation (Sra): An Analysis Into Prospective Biology Teachers In Plant Physiology, Maisuna Kundariati, Herawati Susilo, Balqis Balqis

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This study aimed to investigate the correlation of scientific reasoning and argumentation into prospective biology teachers in plant physiology discourse. This study was conducted at September-December 2021 through blended learning. Thirty prospective biology teachers get involved as participant in this research. Scientific reasoning and argumentation intervention trough PBL and measure by essay tests. Scientific reasoning indicator follows AACU. While scientific argumentation follow TAP. This research found there is correlation between scientific reasoning and argumentation, with R value of 0.556 which means that scientific reasoning skills and scientific argumentation are moderately correlated. The contribution of scientific reasoning to scientific arguments is …

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Performance Evaluation Of 1-Hexadecyl-3- Methylimidazolium Bromide, Lauryl Glucoside And Decane In Creating Winsor Type-Iii Microemulsion, Abang Muhamad Luqman Arif Abang Norden, Sia Chee Wee Dec 2022

Performance Evaluation Of 1-Hexadecyl-3- Methylimidazolium Bromide, Lauryl Glucoside And Decane In Creating Winsor Type-Iii Microemulsion, Abang Muhamad Luqman Arif Abang Norden, Sia Chee Wee

Platform: A Journal of Engineering (PAJE)

While ionic liquids are usually high in cost, only small amounts are needed to establish their beneficial characteristics combined with the utilization of a cosurfactant. A cationic surface-active ionic liquid, 1-hexadecyl-3- methylimidazolium bromide (C16mimBr) was chosen as the main surfactant because it is non-volatile, non-flammable, and able to withstand high temperature. However, it was studied that this ionic liquid poses a major threat to the aquatic environment, thus another surfactant is needed as a cosurfactant. Lauryl glucoside was used as the cosurfactant because it is environmentally friendly, has low toxicity and excellent biodegradability. The potential of this surfactant mixture for …

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Thermophilic Anaerobic Digestion Of Bio-Waste And Biogas Utilization Technologies: A Review, Louis Kon Wei Yii, Ho Yeek Chia, Tee Jia Jun Dec 2022

Thermophilic Anaerobic Digestion Of Bio-Waste And Biogas Utilization Technologies: A Review, Louis Kon Wei Yii, Ho Yeek Chia, Tee Jia Jun

Platform: A Journal of Engineering (PAJE)

In this modern era, more individuals have concluded that utilising biogas as a significant energy source is necessary for considering the depletion of fossil fuels and rising concerns about ecological problems, including environmental pollution. Thermophilic anaerobic digestion (AD) of bio-waste helps to produce more biogas for future uses. However, several significant AD parameters are to be considered, impacting the sludge properties, such as the temperature, pH, hydraulic retention time (HRT) and mixing systems. One of the most important operational parameters influencing the thermophilic AD process is the temperature, which only occurs between 45°C and 60°C. With that, biogas utilisation has …

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Effects Of Beaver Dams On Stream And Riparian Conditions On Public Lands In The United States’ Inland Northwest, Brett B. Roper Dec 2022

Effects Of Beaver Dams On Stream And Riparian Conditions On Public Lands In The United States’ Inland Northwest, Brett B. Roper

Western North American Naturalist

A before-after control-impact (BACI) design was used to simultaneously evaluate how stream habitat, macroinvertebrate communities, stream temperatures, and riparian conditions responded to beavers building dams within a stream reach. Summarized conditions describing beaver-dammed and undammed stream reaches suggested that 13 of the 18 evaluated metrics differed. After accounting for beavers’ selection of lower-gradient stream reaches with less forested cover, the number of stream and riparian metrics that differed significantly dropped to 5. Beaver dams increased pool area and depth, despite failing to increase the frequency of wood >10 cm in diameter. This suggests that beavers build dams utilizing pieces of …

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Injuries And Abnormalities Of The Southwestern Pond Turtle (Actinemys Pallida) In The Mojave River Of California, Kristy L. Cummings, Jeffrey E. Lovich, Shellie R. Puffer, Sarah Greely, Christopher D. Otahal, James Gannon Dec 2022

Injuries And Abnormalities Of The Southwestern Pond Turtle (Actinemys Pallida) In The Mojave River Of California, Kristy L. Cummings, Jeffrey E. Lovich, Shellie R. Puffer, Sarah Greely, Christopher D. Otahal, James Gannon

Western North American Naturalist

The southwestern pond turtle (Actinemys pallida) is a semiaquatic turtle that occasionally spends time on land to bask, oviposit, make intermittent overland movements, and overwinter in terrestrial locations. Use of both aquatic and terrestrial environments exposes semiaquatic turtles to increased risk of injury or mortality from floods, predation attempts, and other environmental hazards (e.g., human activities such as vehicle strikes, etc.). We collected injury and morphological abnormality data from adult turtles at 3 study sites along the length of the Mojave River in San Bernardino County, California: 1 site on the upper half of the Mojave River (hereafter …

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Nicotiana Glauca Graham (Solanaceae) Bioactivity And Toxic Effects On Mortality, Feeding Behavior And Pupation Choice Of Drosophila Melanogaster Larvae (Diptera: Drosophilidae), Abir Bouzar, Sarra Habbachi, Ibtissem Samai, Makarem Rahat, Nour El Imene Boublata, Saadane Fatma Zohra, Wafa Habbachi, Benhissen Saliha, Abdelkrim Tahraoui Dec 2022

Nicotiana Glauca Graham (Solanaceae) Bioactivity And Toxic Effects On Mortality, Feeding Behavior And Pupation Choice Of Drosophila Melanogaster Larvae (Diptera: Drosophilidae), Abir Bouzar, Sarra Habbachi, Ibtissem Samai, Makarem Rahat, Nour El Imene Boublata, Saadane Fatma Zohra, Wafa Habbachi, Benhissen Saliha, Abdelkrim Tahraoui

Journal of Bioresource Management

Nicotiana glauca is a medicinal plant used by traditional healers as antibacterial, antifungal, antiviral and anti-inflammatory medicines. The leaves of N. glauca are very rich in indolic alkaloids which give it a larvicidal power which allows us to use it as a bio-insecticide.In the present study we were perfomed in the direct (mortality) and indirect (food attractiveness and pupation) toxic effects of the aqueous extract of N. glauca on the mortality and feeding behavior of the fruit fly Drosophila melanogaster. The treatment was administered to 2nd instar larvae (L2) and the mortality rate was monitored for 15 days. Similarly we …

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Non-Traditional Methods For The Green Synthesis Of Fine Chemicals, Tara Renée Mooney Dec 2022

Non-Traditional Methods For The Green Synthesis Of Fine Chemicals, Tara Renée Mooney

Graduate Masters Theses

Herein, the advancement of microwave-assisted flow synthesis is reviewed and the green nitration of arenes is investigated. First, microwave-assisted flow systems are described, followed by their synthetic and environmental applications. Microwave-assisted flow synthesis has been applied successfully in organic, inorganic, material, and biochemical syntheses as well as environmental applications such as water desalination and the removal of volatile organic compounds from the atmosphere. In the second part of the Thesis, the methodological development of the first catalyst and solvent-free nitration of m-xylene using only nitric acid is detailed. This environmentally friendly reaction proceeds without the use of harsh Brønsted acids, …

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Coconut Shell Waste Treatment Technology For A Sustainable Waste Utilization: A Case Study Of The Smes In Bohol Village, Indonesia, Wahyu Anggo Rizal, Ria Suryani, Roni Maryana, Dwi Joko Prasetyo, Diah Pratiwi, Yuli Ary Ratnawati, Dini Ariani, Andri Suwanto Dec 2022

Coconut Shell Waste Treatment Technology For A Sustainable Waste Utilization: A Case Study Of The Smes In Bohol Village, Indonesia, Wahyu Anggo Rizal, Ria Suryani, Roni Maryana, Dwi Joko Prasetyo, Diah Pratiwi, Yuli Ary Ratnawati, Dini Ariani, Andri Suwanto

ASEAN Journal of Community Engagement

This project focused on the introduction of liquid smoke and bio briquette manufacturing technology to small and medium enterprises (SMEs) located in Bohol Village, Gunungkidul, Indonesia through technology transfer, training, and mentoring. These SMEs are engaged in the food business with the main product jenang ketan, a traditional food from Gunungkidul, especially in Rongkop District, and very popular among communities around and outside Gunungkidul. The traditional preparation of jenang ketan produces several by-products in the form of waste, which is dominated by coconut shell biomass. The project’s technology transfer was carried out through the procurement of a series of pyrolysis …

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Urban Farming: Empowerment To Increase Economic, Education, And Nutritional Benefit For The Sub-Urban Community, Nasruddin Nasruddin, Yusuf Donner Dwiyantama, Banu Muhammad, Anom Bowalaksono, Dian Ayubi, Sarah Islamiati Pertiwi Dec 2022

Urban Farming: Empowerment To Increase Economic, Education, And Nutritional Benefit For The Sub-Urban Community, Nasruddin Nasruddin, Yusuf Donner Dwiyantama, Banu Muhammad, Anom Bowalaksono, Dian Ayubi, Sarah Islamiati Pertiwi

ASEAN Journal of Community Engagement

This article discusses the urban farming program at Sekolah Master in Beji, Depok, Indonesia, which aims to provide the community with broader benefits, such as economy, education, and increased nutritional value. The project involves planting method that was introduced to this school community. The program itself consists of several stages, starting from the preparation—dissemination of the program and designing a plan for the greenhouse, the implementation—constructing the greenhouse and installing the automatic water system, planting the vegetation, and monitoring and evaluation of the program. Eventually, an evaluation of the successful program is required to determine whether the program can be …

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Figurative Language In Commencement Speeches: Speakers In The Entertainment And Business Industries, Yan-Ling Chang, Michael Tanangkingsing Dec 2022

Figurative Language In Commencement Speeches: Speakers In The Entertainment And Business Industries, Yan-Ling Chang, Michael Tanangkingsing

Journal of English and Applied Linguistics

Figurative language is a commonly used strategy in interpersonal interaction. Although previous studies have explored the use of figurative language in various materials, its use in commencement speeches based on the speaker’s professional background has not been investigated. This study used 20 commencement speeches as material to examine the differences in the use of the figurative language of entertainers and business people invited to speak at commencement ceremonies. The results revealed that figurative language is pervasive in commencement speeches; the more frequently used figure of speech types were metaphor, repetition, personification, and parallelism. Moreover, speakers from the entertainment industry significantly …

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Internship Experiences Of Pre-Service Teachers: A Case Study Of Efl Korean Students In The Philippines, Gina B. Ugalingan, Aileen Bautista, Rochelle Irene Lucas Dec 2022

Internship Experiences Of Pre-Service Teachers: A Case Study Of Efl Korean Students In The Philippines, Gina B. Ugalingan, Aileen Bautista, Rochelle Irene Lucas

Journal of English and Applied Linguistics

Various studies on the different experiences of pre-service teachers who are non-native speakers of English emerged to strengthen the teaching curriculum and empower them to be equipped as they take the role of classroom teachers. Some foreign students even study abroad to strengthen their proficiency in the English language; more so, other teacher education programs offer internships abroad. Studies support that teaching internship experiences impact shaping novice teachers’ identity (Borg, 2003; Kim & Cho, 2014; Ulla, 2016). This case study describes the teaching experiences of eight Korean pre-service teachers during their internship. The participants were students under the program of …

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Self-Reflective Practice On Scaffolding Skills:A Self-Study During The Student-Teacher's Online Teaching Practicum Process, Aulia Adilla Aji, Yazid Basthomi, Mirjam Anugerahwati Dec 2022

Self-Reflective Practice On Scaffolding Skills:A Self-Study During The Student-Teacher's Online Teaching Practicum Process, Aulia Adilla Aji, Yazid Basthomi, Mirjam Anugerahwati

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This study aims to self-reflect the student-teacher’s (ST’s) scaffolding during her online teaching practicum practice. The self-reflective was conducted in six meetings using a Zoom Application. It utilized a thematic analysis from Braun Clarke (2006). The findings showed that the student-teacher was able to: (1) be aware of her scaffolding drawbacks and improved significantly in the next meetings, (2) improve students’ understanding, (3) conduct appropriate scaffolding learning process by utilizing various graphic organizers and media. While the student teacher was effective in using the scaffolding technique, each theme's improvement path is different. Every meeting is typically used to develop it, …

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A Conserved Oxalyl-Coenzyme A Decarboxylase In Oxalate Catabolism, Ninghui Cheng, Vincent Paris, Xiaolan Rao, Xiaoqiang Wang, Paul A Nakata Dec 2022

A Conserved Oxalyl-Coenzyme A Decarboxylase In Oxalate Catabolism, Ninghui Cheng, Vincent Paris, Xiaolan Rao, Xiaoqiang Wang, Paul A Nakata

Children’s Nutrition Research Center Staff Publications

The ability to biosynthesize oxalic acid can provide beneficial functions to plants; however, uncontrolled or prolonged exposure to this strong organic acid results in multiple physiological problems. Such problems include a disruption of membrane integrity, mitochondrial function, metal chelation, and free radical formation. Recent work suggests that a CoA-dependent pathway of oxalate catabolism plays a critical role in regulating tissue oxalate concentrations in plants. Although this CoA-dependent pathway of oxalate catabolism is important, large gaps in our knowledge of the enzymes catalyzing each step remain. Evidence that an oxalyl-CoA decarboxylase (OXC) catalyzes the second step in this pathway, accelerating the …

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Ability Of The Australian General Public To Identify Common Emergency Medical Situations: Results Of An Online Survey Of A Nationally Representative Sample, Brennen W. Mills, Michella G. Hill, Alecka K. Miles, Erin C. Smith, Eben Afrifa-Yamoah, David N. Reid, Shane L. Rogers, Moira G. B. Sim Dec 2022

Ability Of The Australian General Public To Identify Common Emergency Medical Situations: Results Of An Online Survey Of A Nationally Representative Sample, Brennen W. Mills, Michella G. Hill, Alecka K. Miles, Erin C. Smith, Eben Afrifa-Yamoah, David N. Reid, Shane L. Rogers, Moira G. B. Sim

Research outputs 2022 to 2026

Objective: To investigate the Australian general public's ability to identify common medical emergencies as requiring an emergency response. Methods: An online survey asked participants to identify likely medical treatment pathways they would take for 17 hypothetical medical scenarios (eight emergency and nine non-emergency). The number and type of emergency scenarios participants correctly suggested warranted an emergency medical response was examined. Participants included Australian residents (aged > 18 years; n = 5264) who had never worked as an Australian registered medical doctor, nurse or paramedic. Results: Most emergencies were predominately correctly classified as requiring emergency responses (e.g. Severe chest pain, 95 % …

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Chemical Analysis, Antibacterial Activities And Uses Of Leaves And Calyces Of Hibiscus Sabdariffa Grown In Dodoma, Tanzania, Sartaz Begum, Derick R. Mwakimbwala, Gideon Sangiwa, Valence M.K. Ndesendo Dec 2022

Chemical Analysis, Antibacterial Activities And Uses Of Leaves And Calyces Of Hibiscus Sabdariffa Grown In Dodoma, Tanzania, Sartaz Begum, Derick R. Mwakimbwala, Gideon Sangiwa, Valence M.K. Ndesendo

Tanzania Journal of Science

Preliminary phytochemical screening of aqueous and ethanolic extracts of Hibiscus sabdariffa grown in Tanzania revealed the presence of secondary metabolites like steroids, tannins, saponins, glycosides, terpenoids, flavonoids along with L-ascorbic acid (vitamin C) and iron(II). Furthermore, both leaves and calyces showed antibacterial activities (agar well diffusion method) against selected bacterial species (Escherichia coli, Staphylococcus aureus, Salmonella typhi and Shigella sonnei), but calyces possessed potent antibacterial activities compared to leaves. The results also supported the claimed traditional uses of this plant. When interrogated during the cross-sectional study in Dodoma region, 54% of the respondents claimed the plant is used to treat …

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Macroinvertebrates’ Response To Different Land Use In Lowland Streams From Uruguay: Use Of Artificial Substrates For Biomonitoring, Bárbara Suárez, Margenny Barrios, Franco Teixeira De Mello Dec 2022

Macroinvertebrates’ Response To Different Land Use In Lowland Streams From Uruguay: Use Of Artificial Substrates For Biomonitoring, Bárbara Suárez, Margenny Barrios, Franco Teixeira De Mello

Neotropical Biodiversity

The use of macroinvertebrates as indicators of water quality is an effective and low-cost tool, which is widely implemented in biomonitoring programmes. Certain taxa are characteristic of impaired watercourses (e.g. Oligochaeta, Chironomidae and Amphipoda), while others are characteristic of good-quality watercourses (e.g. Ephemeroptera, Plecoptera and Trichoptera; EPT). In this work, we evaluated the response of the macroinvertebrate assemblages to different land uses. For this purpose, artificial substrate colonization experiments were conducted in streams including urban (U, n = 3), intensive agriculture and dairy production (AD, n = 4) and extensive cattle ranching (CR, n = 4) land uses. Because in …

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A Potential Threat To The Pampas Biome: The Introduction Of American Mink, Neovison Vison (Schreber, 1777) In Uruguay, Gabriel Laufer, Enrique M. González, Alexandra Cravino, Noelia Gobel, Felipe Montenegro, Gonzalo Nión, Jorge Velázquez, Alejandro E.J. Valenzuela Dec 2022

A Potential Threat To The Pampas Biome: The Introduction Of American Mink, Neovison Vison (Schreber, 1777) In Uruguay, Gabriel Laufer, Enrique M. González, Alexandra Cravino, Noelia Gobel, Felipe Montenegro, Gonzalo Nión, Jorge Velázquez, Alejandro E.J. Valenzuela

Neotropical Biodiversity

The American mink (Neovison vison) has been introduced for fur farming into several countries around the world. In southern South America, although invasive populations have established in Argentina and Chile, no feral minks have been recorded in the Pampas Biome to date. We report a potentially new biological invasion in Uruguay, presenting observations, pictures and a museum specimen of feral minks in the locality Melilla, Montevideo Department, which probably escaped or were released from a local fur farm. We obtained 35 mink records between 2010 and 2020, mostly close to the fur farm, within a 2.5 km radius. Our report …

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Does Bergmann’S Rule Apply In Bats? Evidence From Two Neotropical Species, Dennis Castillo-Figueroa Dec 2022

Does Bergmann’S Rule Apply In Bats? Evidence From Two Neotropical Species, Dennis Castillo-Figueroa

Neotropical Biodiversity

Bergmann’s rule is one of the most vigorously debated ecogeographic patterns but has rarely been examined in Neotropical bats. Herein, I examined Bergmann’s rule in Carollia perspicillata and Artibeus lituratus along an elevation gradient of 2500 m at both inter- and intraspecific level. I measured 384 specimens from collections belonged to C. perspicillata (89 ♀, 102 ♂) and A. lituratus (89 ♀, 104 ♂). The size of C. perspicillata increased with increasing elevation and decreasing temperature, whereas A. lituratus showed the converse pattern. For both species, females did not differ between elevation categories, contrary to males that were larger above …

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Seasonal Turnover Of Avian Community Assembly In A Highly Fragmented Tumbesian Dry Forest Of Southwestern Ecuador, Vanessa E. Luzuriaga-Aveiga, Diego F. Cisneros-Heredia Dec 2022

Seasonal Turnover Of Avian Community Assembly In A Highly Fragmented Tumbesian Dry Forest Of Southwestern Ecuador, Vanessa E. Luzuriaga-Aveiga, Diego F. Cisneros-Heredia

Neotropical Biodiversity

Tropical dry forests are among the most threatened and yet the most biodiverse Neotropical ecosystems. However, current patterns of biological occupancy in these forests remain poorly studied. Here, we document the diversity, patterns of seasonal turnover and change of species composition over time of birds in a highly exploited but protected tropical dry forest of southwestern Ecuador, Bosque Protector Puyango. Using a combination of mist netting, song recording and direct observations, we surveyed the study site over a 2-month period of fieldwork during both the dry and rainy seasons. We then performed a literature review of the species reported in …

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Evaluation Of Somatic Indexes In The Endangered And Endemic Killifish Tlaloc Hildebrandi (Cyprinodontiformes: Profundulidae), Manuel J. Anzueto-Calvo, Ernesto Velázquez-Velazquez, Gorgonio Ruiz-Campos, Brenda G. Cruz Maza, Sara E. Domínguez-Cisneros Dec 2022

Evaluation Of Somatic Indexes In The Endangered And Endemic Killifish Tlaloc Hildebrandi (Cyprinodontiformes: Profundulidae), Manuel J. Anzueto-Calvo, Ernesto Velázquez-Velazquez, Gorgonio Ruiz-Campos, Brenda G. Cruz Maza, Sara E. Domínguez-Cisneros

Neotropical Biodiversity

Tlaloc hildebrandi is a small (<130 mm) freshwater fish endemic to Southwest Mexico and is listed as endangered through habitat loss and invasive species. We determine and compare the parameters of the length–weight relationship, relative weight, and condition factor among different populations of the endemic killifish, T. hildebrandi. Fulton’s condition factor (K), relative weight (Wr), and the length–weight relationship were estimated for three killifish populations throughout its distribution range in the highlands of Chiapas, México. The Wr was significantly lowest in fishes where there are higher anthropogenic activities. The somatic indexes and the length–weight relationships for T. hildebrandi are hereby published for the first time in both the scientific literature and databases, such as Fishbase.

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Biología Reproductiva De Hatcheria Macraei (Bagre De Torrente) En El Área Natural Protegida La Ciénaga, En El Centro Oeste De Argentina, Agustina Valenzuela, Fabricio Gómez, Juan Carlos Acosta Dec 2022

Biología Reproductiva De Hatcheria Macraei (Bagre De Torrente) En El Área Natural Protegida La Ciénaga, En El Centro Oeste De Argentina, Agustina Valenzuela, Fabricio Gómez, Juan Carlos Acosta

Neotropical Biodiversity

The northwestern region of Argentina has several gaps in ichthyogeographic knowledge and there are still bodies of water without records of the species that inhabit them. When planning mitigation projects or conservation or management actions, little knowledge of the biology of a species presents itself as a restriction. Therefore, the objective is to know the reproductive biology of the torrent catfish (H. macraei) in the Natural Protected Area La Ciénaga, San Juan, with the purpose of generating basic information as a tool for the future management of these populations. The torrent catfish, Hatcheria macraei (Girard, 1855) is a Siluriformes that …

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Influence Of Predator Density In Foraging Behavior And Microhabitat Choice On Litter-Dwelling Scorpions, Vinicius B. Pessoa, Geraldo J. B. Moura, André F. A. Lira Dec 2022

Influence Of Predator Density In Foraging Behavior And Microhabitat Choice On Litter-Dwelling Scorpions, Vinicius B. Pessoa, Geraldo J. B. Moura, André F. A. Lira

Neotropical Biodiversity

The presence of a predator can cause behavioral changes in its prey, such as decreased foraging activity. Previous studies have indicated that the scorpion Ananteris mauryi has the ability to identify the chemical traces of its intraguild predator Tityus pusillus, causing it to reduce its exploratory activity. In this study, the foraging activities of A. mauryi in a natural environment with different densities of T. pusillus were compared. The study was carried out through active searches from 19:00 to 22:00 in five fragments of the Atlantic Forest in Pernambuco, Brazil, one having a low density of T. pusillus and four …

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