Cognitive and Locomotor Strategies of Arboreal
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New Data on the Distribution and Population Density of the African Chameleon Chamaeleo Africanus and the Common Chameleon Chamae
VOL. 2015., No.1, Str. 36- 43 Original Scientific Paper Hyla Dimaki et al. 2015 ISSN: 1848-2007 New data on the distribution and population density of the African Chameleon, Chamaeleo africanus and the Common Chameleon, Chamaeleo chamaeleon in Greece Novi podatci o distribuciji i populacijskoj gustoći afričkog kamelenona, Chamaeleo africanus i običnog kameleona, Chamaeleo chamaeleo u Grčkoj 1 2 3 4 MARIA DIMAKI *, BASIL CHONDROPOULOS , ANASTASIOS LEGAKIS , EFSTRATIOS VALAKOS , MARIOS 1 VERGETOPOULOS 1Goulandris Natural History Museum, 100 Othonos St., 145 62 Kifissia, Greece, [email protected] 2Section of Animal Biology, Dept. of Biology, Univ. of Patra, Greece. 3Zoological Museum, Dept. of Biology, Univ. of Athens, Greece. 4Section of Animal & Human Physiology, Dept. of Biology, Univ. of Athens, Greece. Abstract New data on the distribution and the population density of the Common Chameleon Chamaeleo chamaeleon (Linnaeus, 1758) and the African Chameleon Chamaeleo africanus Laurenti, 1768 are reported from Greece. The data for the Common Chameleon was collected from Samos Island (Aegean Sea) and for the African Chameleon from the SW Peloponnese. The period of the data collection is from 1998 till 2014. The African Chameleon is an allochthonous species for Greece and its presence in the area of Gialova Pylos is likely due to its introduction in historical times, because chameleons were often used in the past as pets by people and kings (Bodson, 1984). Some months ago a new population of the Common Chameleon was discovered in Attica. The distribution of the African Chameleon has expanded in the western Peloponnese with at least two new populations. This expansion is due to the local translocation of the species by humans. -
Comparative Locomotor Performance of Marsupial and Placental Mammals
J. Zool., Lond. (1988) 215, 505-522 Comparative locomotor performance of marsupial and placental mammals T. GARLAND,JR Department of Zoology, University of Wisconsin, Madison, WZ 53706, USA School of Biological Sciences, The Flinders University of South Australia, Bedford Park, Adelaide, 5042, South Australia (Accepted 13 October 1987) (With 6 figures in the text) Marsupials are often considered inferior to placental mammals in a number of physiological characters. Because locomotor performance is presumed to be an important component of fitness, we compared marsupials and placentals with regard to both maximal running speeds and maximal aerobic speeds (=speed at which the maximal rate of oxygen consumption, \jozmax, is attained). Maximal aerobic speed is related to an animal's maximal sustainable speed, and hence is a useful comparative index of stamina. Maximal running speeds of 1 I species of Australian marsupials, eight species of Australian murid rodents, two species of American didelphid marsupials, and two species of American rodents were measured in the laboratory and compared with data compiled from the literature. Our values are greater than, or equivalent to, those reported previously. Marsupials and placentals do not differ in maximal running speeds (nor do Australian rodents differ from non- Australian rodents). Within these groups, however, species and families may differ considerably. Some of the interspecific variation in maximal running speeds is related to differences in habitat: species inhabiting open habitats (e.g. deserts) tend to be faster than are species from habitats with more cover, or arboreal species. Maximal aerobic speeds (compiled from the literature) were higher in large species than in small species. -
Single Rope Technique (SRT)
tci mag 3_06_Backv2.qxp 02/27/2006 3:30 PM Page 60 Climbing Single Rope Technique (SRT) By Jeff Jepson he single rope technique (SRT) employs a static climbing line sys- T tem and is used as a means of canopy access only. The SRT is hard to beat when the climb is long or when the rope cannot be isolated around a single limb. This is often the case when installing lines in tall conifers or thickly crowned decidu- ous trees. Many of the same working and descending limitations that exist when footlocking on a doubled line apply to the SRT as well. The suggested equipment, procedures, and techniques presented on the following pages are but a few of many options avail- able for climbing a single line. For more information on SRT see the book On Rope, by Smith/Padgett. Climbing Line Anchoring Precautions There are concerns and potential hazards that exist when the climbing line is anchored to the base of the tree that do not occur when anchoring the line to the limb itself. Climbers need to be aware of the loading forces that occur on the branch or crotch that is redirecting the climbing line (see figure 1a) to an anchor point below (2a, 2b). This situation exposes the redi- Christina “Chrissy” Spence of Gisborne, New Zealand, won the title of Women's International Tree Climbing Champion at recting limb to twice the load that would the International Society of Arboriculture’s 29th International Tree Climbing Championship in Nashville in 2005. Spence occur if the rope was anchored to the climbed on Yale Cordage’s XTC line for the competition. -
Rethinking the Evolution of the Human Foot: Insights from Experimental Research Nicholas B
© 2018. Published by The Company of Biologists Ltd | Journal of Experimental Biology (2018) 221, jeb174425. doi:10.1242/jeb.174425 REVIEW Rethinking the evolution of the human foot: insights from experimental research Nicholas B. Holowka* and Daniel E. Lieberman* ABSTRACT presumably owing to their lack of arches and mobile midfoot joints Adaptive explanations for modern human foot anatomy have long for enhanced prehensility in arboreal locomotion (see Glossary; fascinated evolutionary biologists because of the dramatic differences Fig. 1B) (DeSilva, 2010; Elftman and Manter, 1935a). Other studies between our feet and those of our closest living relatives, the great have documented how great apes use their long toes, opposable apes. Morphological features, including hallucal opposability, toe halluces and mobile ankles for grasping arboreal supports (DeSilva, length and the longitudinal arch, have traditionally been used to 2009; Holowka et al., 2017a; Morton, 1924). These observations dichotomize human and great ape feet as being adapted for bipedal underlie what has become a consensus model of human foot walking and arboreal locomotion, respectively. However, recent evolution: that selection for bipedal walking came at the expense of biomechanical models of human foot function and experimental arboreal locomotor capabilities, resulting in a dichotomy between investigations of great ape locomotion have undermined this simple human and great ape foot anatomy and function. According to this dichotomy. Here, we review this research, focusing on the way of thinking, anatomical features of the foot characteristic of biomechanics of foot strike, push-off and elastic energy storage in great apes are assumed to represent adaptations for arboreal the foot, and show that humans and great apes share some behavior, and those unique to humans are assumed to be related underappreciated, surprising similarities in foot function, such as to bipedal walking. -
Dimakifeedecol.Pdf
FEEDING ECOLOGY OF THE COMMON CHAMELEON Chamaeleo chamaeleon (Linnaeus, 1758) AND THE AFRICAN CHAMELEON Chamaeleo africanus Laurenti, 1768. DIMAKI M.1, LEGAKIS A.², CHONDROPOULOS B.³ & VALAKOS E.D. 4 1. The Goulandris Natural History Museum, 13, Levidou St., 145 62 Kifissia, Greece. 2. Zoological Museum, Dept. of Biology, Univ. of Athens, 157 84 Athens, Greece. 3. Section of Animal Biology, Dept. of Biology, Univ. of Patra, 260 01 Patra, Greece 4. Section of Animal & Human Physiology, Dept. of Biology, Univ. of Athens, 157 84 Athens, Greece. INTRODUCTION In this work the results of the comparative food analysis of the Common Chameleon Chamaeleo chamaeleon (Linnaeus, 1758) and the African Chameleon Chamaeleo africanus Laurenti, 1768 are presented. This is the first time that information on the diet of Greek specimens of the Common Chameleon are presented. The distribution of the Common Chameleon in RESULTS Greece includes the Aegean islands of Samos, Chios, and Crete. The African Chameleon is found in Greece only at Gialova near Pylos (Böhme et al., 1998; Dimaki et al., 2001). A comparison of the two species, among seasons and between sexes is presented, also a comparison Comparison between seasons of our results with those on the literature is made. Chamaeleo africanus Chamaeleo chamaeleon N spring=13 N spring=13 N summer=31 N summer=31 N autumn=21 N autumn=21 N autumn=19 N autumn=19 45 18 28 24 40 16 24 20 35 14 20 30 12 16 16 25 10 12 12 C. africanus 20 8 8 15 6 8 F 10 F 4 % N % 4 4 % N % 5 2 0 0 0 0 crabs snails crabs snails hairs -
Pdf 584.52 K
3 Egyptian J. Desert Res., 66, No. 1, 35-55 (2016) THE VERTEBRATE FAUNA RECORDED FROM NORTHEASTERN SINAI, EGYPT Soliman, Sohail1 and Eman M.E. Mohallal2* 1Department of Zoology, Faculty of Science, Ain Shams University, El-Abbaseya, Cairo, Egypt 2Department of Animal and Poultry Physiology, Desert Research Center, El Matareya, Cairo, Egypt *E-mail: [email protected] he vertebrate fauna was surveyed in ten major localities of northeastern Sinai over a period of 18 months (From T September 2003 to February 2005, inclusive). A total of 27 species of reptiles, birds and mammals were recorded. Reptiles are represented by five species of lizards: Savigny's Agama, Trapelus savignii; Nidua Lizard, Acanthodactylus scutellatus; the Sandfish, Scincus scincus; the Desert Monitor, Varanus griseus; and the Common Chamaeleon, Chamaeleo chamaeleon and one species of vipers: the Sand Viper, Cerastes vipera. Six species of birds were identified during casual field observations: The Common Kestrel, Falco tinnunculus; Pied Avocet, Recurvirostra avocetta; Kentish Plover, Charadrius alexandrines; Slender-billed Gull, Larus genei; Little Owl, Athene noctua and Southern Grey Shrike, Lanius meridionalis. Mammals are represented by 15 species; Eleven rodent species and subspecies: Flower's Gerbil, Gerbillus floweri; Lesser Gerbil, G. gerbillus, Aderson's Gerbil, G. andersoni (represented by two subspecies), Wagner’s Dipodil, Dipodillus dasyurus; Pigmy Dipodil, Dipodillus henleyi; Sundevall's Jird, Meriones crassus; Negev Jird, Meriones sacramenti; Tristram’s Jird, Meriones tristrami; Fat Sand-rat, Psammomys obesus; House Mouse, Mus musculus and Lesser Jerboa, Jaculus jaculus. Three carnivores: Red Fox, Vulpes vulpes; Marbled Polecat, Vormela peregosna and Common Badger, Meles meles and one gazelle: Arabian Gazelle, Gazella gazella. -
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Anatomical variation of habitat related changes in scapular morphology C. Luziga1 and N. Wada2 1Department of Veterinary Anatomy and Pathology, College of Veterinary and Biomedical Sciences, Sokoine University of Agriculture, Morogoro, Tanzania 2Laboratory Physiology, Department of Veterinary Sciences, School of Veterinary Medicine, Yamaguchi University, Yamaguchi 753-8558, Japan E-mail: [email protected] SUMMARY The mammalian forelimb is adapted to different functions including postural, locomotor, feeding, exploratory, grooming and defense. Comparative studies on morphology of the mammalian scapula have been performed in an attempt to establish the functional differences in the use of the forelimb. In this study, a total of 102 scapulae collected from 66 species of animals, representatives of all major taxa from rodents, sirenians, marsupials, pilosa, cetaceans, carnivores, ungulates, primates and apes were analyzed. Parameters measured included scapular length, width, position, thickness, area, angles and index. Structures included supraspinous and infraspinous fossae, scapular spine, glenoid cavity, acromium and coracoid processes. Images were taken using computed tomographic (CT) scanning technology (CT-Aquarium, Toshiba and micro CT- LaTheta, Hotachi, Japan) and measurement values acquired and processed using Avizo computer software and CanvasTM 11 ACD systems. Statistical analysis was performed using Microsoft Excel 2013. Results obtained showed that there were similar morphological characteristics of scapula in mammals with arboreal locomotion and living in forest and mountainous areas but differed from those with leaping and terrestrial locomotion living in open habitat or savannah. The cause for the statistical grouping of the animals signifies presence of the close relationship between habitat and scapular morphology and in a way that corresponds to type of locomotion and speed. -
Orangutan Positional Behavior and the Nature of Arboreal Locomotion in Hominoidea Susannah K.S
AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 000:000–000 (2006) Orangutan Positional Behavior and the Nature of Arboreal Locomotion in Hominoidea Susannah K.S. Thorpe1* and Robin H. Crompton2 1School of Biosciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK 2Department of Human Anatomy and Cell Biology, University of Liverpool, Liverpool L69 3GE, UK KEY WORDS Pongo pygmaeus; posture; orthograde clamber; forelimb suspend ABSTRACT The Asian apes, more than any other, are and orthograde compressive locomotor modes are ob- restricted to an arboreal habitat. They are consequently an served more frequently. Given the complexity of orangu- important model in the interpretation of the morphological tan positional behavior demonstrated by this study, it is commonalities of the apes, which are locomotor features likely that differences in positional behavior between associated with arboreal living. This paper presents a de- studies reflect differences in the interplay between the tailed analysis of orangutan positional behavior for all age- complex array of variables, which were shown to influence sex categories and during a complete range of behavioral orangutan positional behavior (Thorpe and Crompton [2005] contexts, following standardized positional mode descrip- Am. J. Phys. Anthropol. 127:58–78). With the exception tions proposed by Hunt et al. ([1996] Primates 37:363–387). of pronograde suspensory posture and locomotion, orang- This paper shows that orangutan positional behavior is utan positional behavior is similar to that of the African highly complex, representing a diverse spectrum of posi- apes, and in particular, lowland gorillas. This study sug- tional modes. Overall, all orthograde and pronograde sus- gests that it is orthogrady in general, rather than fore- pensory postures are exhibited less frequently in the pres- limb suspend specifically, that characterizes the posi- ent study than previously reported. -
The Biodynamics of Arboreal Locomotion in the Gray Short
THE BIODYNAMICS OF ARBOREAL LOCOMOTION IN THE GRAY SHORT- TAILED OPOSSUM (MONODELPHIS DOMESTICA) A dissertation presented to the faculty of the College of Arts and Sciences of Ohio University In partial fulfillment of the requirements for the degree Doctor of Philosophy Andrew R. Lammers August 2004 This dissertation entitled THE BIODYNAMICS OF ARBOREAL LOCOMOTION IN THE GRAY SHORT- TAILED OPOSSUM (MONODELPHIS DOMESTICA) BY ANDREW R. LAMMERS has been approved for the Department of Biological Sciences and the College of Arts and Sciences by Audrone R. Biknevicius Associate Professor of Biomedical Sciences Leslie A. Flemming Dean, College of Arts and Sciences LAMMERS, ANDREW R. Ph.D. August 2004. Biological Sciences The biodynamics of arboreal locomotion in the gray short-tailed opossum (Monodelphis domestica). (147 pp.) Director of Dissertation: Audrone R. Biknevicius Most studies of animal locomotor biomechanics examine movement on a level, flat trackway. However, small animals must negotiate heterogenerous terrain that includes changes in orientation and diameter. Furthermore, animals which are specialized for arboreal locomotion may solve the biomechanical problems that are inherent in substrates that are sloped and/or narrow differently from animals which are considered terrestrial. Thus I studied the effects of substrate orientation and diameter on locomotor kinetics and kinematics in the gray short-tailed opossum (Monodelphis domestica). The genus Monodelphis is considered the most terrestrially adapted member of the family Didelphidae, but nevertheless these opossums are reasonably skilled at climbing. The first study (Chapter 2) examines the biomechanics of moving up a 30° incline and down a 30° decline. Substrate reaction forces (SRFs), limb kinematics, and required coefficient of friction were measured. -
Variation in Body Temperatures of the African Chameleon Chamaeleo Africanus Laurenti, 1768 and the Common Chameleon Chamaeleo Chamaeleon (Linnaeus, 1758)
Belg. J. Zool., 130 (Supplement): 89-93 December 2000 Variation in body temperatures of the African Chameleon Chamaeleo africanus Laurenti, 1768 and the Common Chameleon Chamaeleo chamaeleon (Linnaeus, 1758) Maria Dimaki 1, Efstratios D. Valakos 2 and Anastasios Legakis 3 1 The Goulandris Natural History Museum, 13, Levidou St., GR-145 62 Kifissia, Greece 2 Section of Animal & Human Physiology, Dept. of Biology, Univ. of Athens, GR-157 84 Athens, Greece 3 Zoological Museum, Dept. of Biology, Univ. of Athens, GR-157 84 Athens, Greece ABSTRACT. Data on the thermal ecology of the African Chameleon Chamaeleo africanus Laurenti, 1768 and the Common Chameleon Chamaeleo chamaeleon (Linnaeus, 1758) are reported from Greece. In the field the Tb values ranged from 10.4°C to 31.6°C for C. africanus and 23.5°C to 31°C for C. chamaeleon. There was a significant correlation between Tb and Ta in spring and summer for both species. There was also a signifi- cant correlation between Tb and Ts only in the spring and only for C. africanus. Cloacal temperatures differed significantly between spring and summer and so did substrate temperatures and air temperatures. As the months became hotter the animals reached higher temperatures. In a laboratory temperature gradient, the pre- ferred body temperatures of C. africanus and C. chamaeleon were measured and compared with field body temperatures. The preferred body temperature in the laboratory gradient ranged from 26.0°C to 36.0°C for C. chamaeleon and from 25.0°C to 35.0°C for C. africanus. The mean Tb for C. -
Hand Pressures During Arboreal Locomotion in Captive Bonobos (Pan Paniscus) Diana S
© 2018. Published by The Company of Biologists Ltd | Journal of Experimental Biology (2018) 221, jeb170910. doi:10.1242/jeb.170910 RESEARCH ARTICLE Hand pressures during arboreal locomotion in captive bonobos (Pan paniscus) Diana S. Samuel1, Sandra Nauwelaerts2,3, Jeroen M. G. Stevens3,4 and Tracy L. Kivell1,5,* ABSTRACT of both manipulation and locomotion. Although there has been much Evolution of the human hand has undergone a transition from use research into the potential changes in manipulative abilities during locomotion to use primarily for manipulation. Previous throughout human evolution, from both morphological (e.g. comparative morphological and biomechanical studies have Napier, 1955; Marzke, 1997; Marzke et al., 1999; Skinner et al., focused on potential changes in manipulative abilities during 2015) and biomechanical (e.g. Marzke et al., 1998; Rolian et al., human hand evolution, but few have focused on functional signals 2011; Williams et al., 2012; Key and Dunmore, 2014) perspectives, for arboreal locomotion. Here, we provide this comparative context comparatively little research has been done that may help us infer though the first analysis of hand loading in captive bonobos during how our ancestors may have used their hands for arboreal arboreal locomotion. We quantify pressure experienced by the locomotion, particularly climbing and suspension. Many fossil fingers, palm and thumb in bonobos during vertical locomotion, hominins show features of the hand (e.g. curved fingers) and upper suspension and arboreal knuckle-walking. The results show that limb (e.g. superiorly oriented shoulder joint) (e.g. Stern, 2000; pressure experienced by the fingers is significantly higher during Larson, 2007; Churchill et al., 2013; Kivell et al., 2011, 2015; Kivell, knuckle-walking compared with similar pressures experienced by the 2015) that suggest arboreal locomotion may still have been an fingers and palm during suspensory and vertical locomotion. -
Checklist of Amphibians and Reptiles of Morocco: a Taxonomic Update and Standard Arabic Names
Herpetology Notes, volume 14: 1-14 (2021) (published online on 08 January 2021) Checklist of amphibians and reptiles of Morocco: A taxonomic update and standard Arabic names Abdellah Bouazza1,*, El Hassan El Mouden2, and Abdeslam Rihane3,4 Abstract. Morocco has one of the highest levels of biodiversity and endemism in the Western Palaearctic, which is mainly attributable to the country’s complex topographic and climatic patterns that favoured allopatric speciation. Taxonomic studies of Moroccan amphibians and reptiles have increased noticeably during the last few decades, including the recognition of new species and the revision of other taxa. In this study, we provide a taxonomically updated checklist and notes on nomenclatural changes based on studies published before April 2020. The updated checklist includes 130 extant species (i.e., 14 amphibians and 116 reptiles, including six sea turtles), increasing considerably the number of species compared to previous recent assessments. Arabic names of the species are also provided as a response to the demands of many Moroccan naturalists. Keywords. North Africa, Morocco, Herpetofauna, Species list, Nomenclature Introduction mya) led to a major faunal exchange (e.g., Blain et al., 2013; Mendes et al., 2017) and the climatic events that Morocco has one of the most varied herpetofauna occurred since Miocene and during Plio-Pleistocene in the Western Palearctic and the highest diversities (i.e., shift from tropical to arid environments) promoted of endemism and European relict species among allopatric speciation (e.g., Escoriza et al., 2006; Salvi North African reptiles (Bons and Geniez, 1996; et al., 2018). Pleguezuelos et al., 2010; del Mármol et al., 2019).