scholarly journals Hidden in plain sight: detectability and habitat selection of the central plateau dusky rattlesnake in anthropized landscapes

2021 ◽  
pp. 91-98
Author(s):  
Leroy Soria-Díaz

Human activities have caused several changes in biotic communities all over the world. Some species maintain viable populations in altered environments through different adaptations, however, knowledge in this regard is scarce for certaintaxa, including reptiles. We analysed the detectability and habitat selection of the rattlesnake Crotalus triseriatus to contribute to our knowledge about how this species responds to anthropogenic landscape change. Rattlesnakes were monitored for two years in two anthropized landscapes using visual encounter surveys. We analysed detectability in relation to climatic factors and human activity, and habitat selection was analysed in native and non-native vegetation. Our study shows that detectability of C. triseriatus is differentially affected in anthropized landscapes; human activity may be determinant in landscapes such as agricultural fields, whilst climatic factors may be determinant in landscapes where people are less active such as the protected areas within urban parks. The analyses of habitat selection shows that native vegetation is crucial for the persistence of C. triseriatus in the studied landscapes. Several strategies may allow rattlesnakes to persist in different anthropized landscapes; nonetheless, native habitat remnants should be protected in anthropized areas to conserve wildlife.

2021 ◽  
Author(s):  
◽  
Maureen Kortens

<p>Without metaphor there would be no legs on the table, no hands on the clock. These are dead metaphors. Even that expression is a metaphor, for how can something be dead that has never literally been born. It is an expression which cannot be taken literally. In its first use it was 'alive' in the sense of being new or witty or apt and memorable. Without metaphor we are reduced to the bare bones of language, to a kind of Orwellian Newspeak. One can hardly avoid using metaphors to explain them. Even scientists and mathematicians use metaphors but they usually refer to them as models. Metaphor is a function of language which enables us to be creative. Not only the person who coins, invents, or thinks of the new metaphor but also the listener or reader who constructs a personal meaning for him or her self. We speak of creativity in education, as a human capacity to be encouraged and developed. How creative can humans be? Do they ever really 'create' anything new apart from reproductions of themselves? Any creative activity such as painting, building or gardening is really re-organising elements already created. So humans enjoy 'creating' their own order, forms, or patterns which we call art. Language is capable of endless patterns. The basic patterns, usually known as grammar, appear to be innate and in speech and writing we use these 'inbuilt' structures to create new sentences of our own. At its highest level we call this literature. It has taken us some time to realise that a word in itself has no meaning as it is a symbol only. For those aspects of experience which are difficult to explain we turn to metaphor. Thus religions often use myths and symbols. Anthropology describes many human activities as metaphoric, for example myths or totemism. Practically every sphere of human activity is imbued with this magical quality of metaphor, for it extends our understanding of the world by giving us a kind of 'elastic' way of describing our experiences. It is not the prerogative of writers or poets but a power we all possess and one which has been derided and abused at times in our history. Only now is it increasingly being recognized as a human capacity worthy of study. In this work I delve into some aspects of the use of metaphor to show how we need to be aware of its potent, pervasive power, especially those of us involved in teaching for whom I will attempt to demonstrate that teaching is itself a metaphoric activity.</p>


2014 ◽  
Vol 78 (8) ◽  
pp. 1394-1403 ◽  
Author(s):  
Carl D. Morrison ◽  
Mark S. Boyce ◽  
Scott E. Nielsen ◽  
Michelle M. Bacon

2017 ◽  
Vol 13 (2) ◽  
pp. 131
Author(s):  
Boike Janus Anshory

<p><strong>Abstract</strong></p><p>In the modern era and the development of technology today, there is a tendency of human activity that are faced with the practical cultural phenomenon in the sense of many human activities are permitted to make ends meet. Human activity will be smooth if it is complemented by the completeness of the activities referred to as "Product". Along with the dense community activities and also the traffic situation, especially in urban areas and as well as the lifestyle of consumerism today, in general, people will think and decide on a purpose / desire him to be practical and fast in determining the specific product. There are a variety of needs and human activities, such as trade/ school / organization / health/ government and so on, of course, will require a product of furniture as the main products to complement the activity within a building. A wide variety of product design and selection of furniture offered by some conventional and modern retail stores, consumers will be free to pick and choose the products that will be purchased in accordance with the visual perception and price instantly</p><p> </p><p><strong>Abstrak</strong></p><p>Dalam era modern dan perkembangan teknologi saat ini, terdapat kecenderungan aktivitas manusia yang dihadapkan pada fenomena budaya praktis yang dalam arti aktivitas manusia banyak dimudahkan untuk memenuhi kebutuhan hidupnya. Aktivitas manusia akan menjadi lancar jika dilengkapi oleh kelengkapan aktivitas yang disebut sebagai “<em>Product”</em>. Seiring dengan padatnya aktivitas masyarakat dan juga situasi lalu lintas khususnya di daerah perkotaan dan seiring pula dengan gaya hidup konsumerisme saat ini, pada umumnya masyarakat akan berpikir dan memutuskan suatu tujuan/keinginan yang arahnya bersifat praktis dan cepat di dalam menentukan produk tertentu. Kita mengetahui adaberagam kebutuhan dan aktivitas masyarakat, seperti berdagang/ sekolah/organisasi/kesehatan/ pemerintahan dan sebagainya, tentunya aktivitas tersebut akan membutuhkan suatu <em>product furniture</em>sebagai produk utama untuk melengkapi aktivitas di dalam suatu bangunan. Banyak ragam dan pilihan <em>designproduct furniture</em> yang ditawarkan oleh beberapa toko retail konvensional danmodern, konsumen akan leluasa untuk memilih dan menentukan produk yang akan dibeli sesuai dengan persepsi visual dan harga secara instan</p>


2018 ◽  
Vol 10 (3) ◽  
pp. 863 ◽  
Author(s):  
Dandan Zhao ◽  
Hong He ◽  
Wen Wang ◽  
Lei Wang ◽  
Haibo Du ◽  
...  

Wetlands in the mid- and high-latitudes are particularly vulnerable to environmental changes and have declined dramatically in recent decades. Climate change and human activities are arguably the most important factors driving wetland distribution changes which will have important implications for wetland ecological functions and services. We analyzed the importance of driving variables for wetland distribution and investigated the relative importance of climatic factors and human activity factors in driving historical wetland distribution changes. We predicted wetland distribution changes under climate change and human activities over the 21st century using the Random Forest model in a mid- and high-latitude region of Northeast China. Climate change scenarios included three Representative Concentration Pathways (RCPs) based on five general circulation models (GCMs) downloaded from the Coupled Model Intercomparison Project, Phase 5 (CMIP5). The three scenarios (RCP 2.6, RCP 4.5, and RCP 8.5) predicted radiative forcing to peak at 2.6, 4.5, and 8.5 W/m2 by the 2100s, respectively. Our results showed that the variables with high importance scores were agricultural population proportion, warmness index, distance to water body, coldness index, and annual mean precipitation; climatic variables were given higher importance scores than human activity variables on average. Average predicted wetland area among three emission scenarios were 340,000 ha, 123,000 ha, and 113,000 ha for the 2040s, 2070s, and 2100s, respectively. Average change percent in predicted wetland area among three periods was greatest under the RCP 8.5 emission scenario followed by RCP 4.5 and RCP 2.6 emission scenarios, which were 78%, 64%, and 55%, respectively. Losses in predicted wetland distribution were generally around agricultural lands and expanded continually from the north to the whole region over time, while the gains were mostly associated with grasslands and water in the most southern region. In conclusion, climatic factors had larger effects than human activity factors on historical wetland distribution changes and wetland distributions were predicted to decline remarkably over time under climate change scenarios. Our findings have important implications for wetland resource management and restoration because predictions of future wetland changes are needed for wetlands management planning.


2013 ◽  
Vol 726-731 ◽  
pp. 614-617
Author(s):  
Zhuo Zhang ◽  
Qian Qian Zhang ◽  
Chan Zhou

Jankowskis bunting Emberiza janknowshkii Taczanovski is a glacial relict species. Habitat selection of jankowskis bunting Emberiza janknowshkii Taczanovski was investigated in Keerqin grassland of Inner Mongolia. The results showed that E. janknowshkii had obvious choice of habitat preference. Perch, the coverage of earth surface and height of plant had a significant impact on habitat selection of E. janknowshkii. Therefore, we should strengthen the protection for apricot, reduce human activities, such as cut grass, and protect height and coverage vegetation. And E. janknowshkii should be enclosure protected.


2021 ◽  
Author(s):  
◽  
Maureen Kortens

<p>Without metaphor there would be no legs on the table, no hands on the clock. These are dead metaphors. Even that expression is a metaphor, for how can something be dead that has never literally been born. It is an expression which cannot be taken literally. In its first use it was 'alive' in the sense of being new or witty or apt and memorable. Without metaphor we are reduced to the bare bones of language, to a kind of Orwellian Newspeak. One can hardly avoid using metaphors to explain them. Even scientists and mathematicians use metaphors but they usually refer to them as models. Metaphor is a function of language which enables us to be creative. Not only the person who coins, invents, or thinks of the new metaphor but also the listener or reader who constructs a personal meaning for him or her self. We speak of creativity in education, as a human capacity to be encouraged and developed. How creative can humans be? Do they ever really 'create' anything new apart from reproductions of themselves? Any creative activity such as painting, building or gardening is really re-organising elements already created. So humans enjoy 'creating' their own order, forms, or patterns which we call art. Language is capable of endless patterns. The basic patterns, usually known as grammar, appear to be innate and in speech and writing we use these 'inbuilt' structures to create new sentences of our own. At its highest level we call this literature. It has taken us some time to realise that a word in itself has no meaning as it is a symbol only. For those aspects of experience which are difficult to explain we turn to metaphor. Thus religions often use myths and symbols. Anthropology describes many human activities as metaphoric, for example myths or totemism. Practically every sphere of human activity is imbued with this magical quality of metaphor, for it extends our understanding of the world by giving us a kind of 'elastic' way of describing our experiences. It is not the prerogative of writers or poets but a power we all possess and one which has been derided and abused at times in our history. Only now is it increasingly being recognized as a human capacity worthy of study. In this work I delve into some aspects of the use of metaphor to show how we need to be aware of its potent, pervasive power, especially those of us involved in teaching for whom I will attempt to demonstrate that teaching is itself a metaphoric activity.</p>


Author(s):  
Shuailing Zhou ◽  
Ali Krzton ◽  
Shuai Gao ◽  
Cheng Guo ◽  
Zuofu Xiang

Human activity is increasingly and persistently disturbing nature and wild animals. Affected wildlife adopts multiple strategies to deal with different human influences. To explore the effect of human activity on habitat utilization of Himalayan marmot (Marmota himalayana), habitat utilization patterns of three neighboring marmot populations in habitats affected differently by human activities were recorded and compared. We found that: (1) Distance between reproductive burrows (a represent of reproductive pairs) becomes shorter under the influence of human activities, and more burrows were dug as temporary shelters, resulting in a shorter distance between those shelters as well as shorter distance flee to those shelters, and consequently, shorter flight initiation distance when threatened. More burrows that are closer in the disturbed habitats improve the ability to escape from threats. (2) Reproductive burrow site selection of the species is determined by the availability of mounds in the habitat, and breeding pairs selectively build reproductive (also the hibernation) burrows on mounds, potentially to improve surveillance when basking and the drainage of burrows. Human activities generally drive breeding pairs away from the road to dig their reproductive burrows likely to reduce disturbance from vehicles. However, even heavy human activity exerts no pressure on the distance of reproductive burrows from the road or the mound volume of the high disturbance population, potentially because mounds are the best burrowing site to reproduce and hibernate in the habitat. Marmots deal with disturbance by digging more burrows in the habitat to flee more effectively and building reproductive burrows on mounds to gain better vigilance and drainage efficiency.


2011 ◽  
Vol 12 (8) ◽  
pp. 654-663 ◽  
Author(s):  
Philip D. McLoughlin ◽  
Eric Vander Wal ◽  
Stacey J. Lowe ◽  
Brent R. Patterson ◽  
Dennis L. Murray

2017 ◽  
Vol 24 (1) ◽  
pp. 46-72
Author(s):  
Jacob Tootalian

Ben Jonson's early plays show a marked interest in prose as a counterpoint to the blank verse norm of the Renaissance stage. This essay presents a digital analysis of Jonson's early mixed-mode plays and his two later full-prose comedies. It examines this selection of the Jonsonian corpus using DocuScope, a piece of software that catalogs sentence-level features of texts according to a series of rhetorical categories, highlighting the distinctive linguistic patterns associated with Jonson's verse and prose. Verse tends to employ abstract, morally and emotionally charged language, while prose is more often characterized by expressions that are socially explicit, interrogative, and interactive. In the satirical economy of these plays, Jonson's characters usually adopt verse when they articulate censorious judgements, descending into prose when they wade into the intractable banter of the vicious world. Surprisingly, the prosaic signature that Jonson fashioned in his earlier drama persisted in the two later full-prose comedies. The essay presents readings of Every Man Out of his Humour and Bartholomew Fair, illustrating how the tension between verse and prose that motivated the satirical dynamics of the mixed-mode plays was released in the full-prose comedies. Jonson's final experiments with theatrical prose dramatize the exhaustion of the satirical impulse by submerging his characters almost entirely in the prosaic world of interactive engagement.


2003 ◽  
Vol 9 (1) ◽  
pp. 141-153 ◽  
Author(s):  
Mayumi Sakuragi ◽  
Hiromasa Igota ◽  
Hiroyuki Uno ◽  
Koichi Kaji ◽  
Masami Kaneko ◽  
...  

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