Management and Conservation of Underutilized Fruits

2019 ◽  
pp. 409-424
Author(s):  
T. Sakthivel ◽  
R. Senthil Kumar ◽  
Shiva Bonath
Keyword(s):  
Management And Conservation

Documentation et gestion du patrimoine archéologique de la chaîne montagneuse tuniso-libyenne via l'utilisation des nouvelles technologies : résultats préliminaires

2021 ◽  
pp. 1-16
Author(s):  
Héla Mekki
Keyword(s):  
New Technologies ◽  
Management Plan ◽  
Archaeological Sites ◽  
Mountain Range ◽  
Direct Evaluation ◽  
Nouvelles Technologies ◽  
Data Assessment ◽  
Conservation Plan ◽  
Indirect Evaluation ◽  
Management And Conservation

Abstract The mountain range formed by Jebels Matmata, Demmer and Nefoussa which links the two countries, Tunisia and Libya, is strewn with archaeological remains that are little known today, due in part to the rugged terrain which makes it difficult to see them. This issue has been helped by the use of new technologies, in this case remote sensing and QGIS software. Archaeological evidence has been uncovered and more than 3,900 sites and monuments have been detected on the sides of these mountains. In addition to the inventory of unknown archaeological sites, the main aim of the work was to draw up a management and conservation plan to provide, with an order of priority, a strategy for the safeguard and conservation of the mountain heritage. This management plan was only possible through a correlation of three data: assessment of values, identification of threats, and study of the state of conservation. These components were studied using an indirect evaluation based on satellite imagery and direct evaluation through field visits.

Prioritizing strain insulators for raptor conservation

2021 ◽  
pp. 1-16
Author(s):  
FRANCISCO GUIL ◽  
M. ÁNGELES SORIA ◽  
VÍCTOR ORTEGA ◽  
RUBÉN GARCÍA-SÁNCHEZ ◽  
SILVIA VILLAVERDE-MORCILLO
Keyword(s):  
Methodological Approach ◽  
Risk Index ◽  
Influential Factors ◽  
Negative Effects ◽  
Central Spain ◽  
Novel Approach ◽  
Conservation Actions ◽  
Complete Survey ◽  
Raptor Conservation ◽  
Management And Conservation

Summary Avian species often take advantage of human-made structures, such as perching on power poles, although this can lead to negative effects for both birds and infrastructure. It has been demonstrated that anchor-type pylons, with strain insulators, are amongst the most dangerous of these structures. Our goal was to develop a methodological approach to evaluate the ways in which raptors perch on the six most commonly used strain insulator configurations in Spain, and to build a risk index that can be used to prioritise them. To study the ways raptors perch, we worked with six wildlife rescue centres in central Spain for almost a year assessing these six strain insulator configurations in 83 perch trials with 176 raptors in ample flying pens. We analysed 475 complete survey days, with an approximate number of 258,960 analysed pictures, including 6,766 perchings on strain insulators. We assessed the influential factors for these 6,766 perchings and developed a novel approach to prioritise strain insulator configurations that can be used anywhere. Our results suggest that longer insulator strains (i.e. PECA-1000 and Caon-C3670) are the safest, according to our prioritization criteria, although these results require further assessment in the field. Managers and conservationists should take into account these results to improve management and conservation actions.

scholarly journals In-air hearing in Hawaiian monk seals: implications for understanding the auditory biology of Monachinae seals

2021 ◽  
Author(s):  
Brandi Ruscher ◽  
Jillian M. Sills ◽  
Beau P. Richter ◽  
Colleen Reichmuth
Keyword(s):  
Marine Mammals ◽  
Elephant Seal ◽  
Critical Ratio ◽  
Mirounga Angustirostris ◽  
Northern Elephant Seal ◽  
Hearing Ability ◽  
Highly Sensitive ◽  
Monk Seals ◽  
Management And Conservation ◽  
Hearing Abilities

AbstractThe auditory biology of Monachinae seals is poorly understood. Limited audiometric data and certain anatomical features suggest that these seals may have reduced sensitivity to airborne sounds compared to related species. Here, we describe the in-air hearing abilities of a Hawaiian monk seal (Neomonachus schauinslandi) trained to participate in a psychophysical paradigm. We report absolute (unmasked) thresholds for narrowband signals measured in quiet conditions across the range of hearing and masked thresholds measured in the presence of octave-band noise at two frequencies. The behavioral audiogram indicates a functional hearing range from 0.1 to 33 kHz and poor sensitivity, with detection thresholds above 40 dB re 20 µPa. Critical ratio measurements are elevated compared to those of other seals. The apparently reduced terrestrial hearing ability of this individual—considered with available auditory data for a northern elephant seal (Mirounga angustirostris)—suggests that hearing in Monachinae seals differs from that of the highly sensitive Phocinae seals. Exploration of phylogenetic relationships and anatomical traits support this claim. This work advances understanding of the evolution of hearing in amphibious marine mammals and provides updated information that can be used for management and conservation of endangered Hawaiian monk seals.

Assessing vessel traffic in the Salish Sea using satellite AIS: An important contribution for planning, management and conservation in southern resident killer whale critical habitat

2021 ◽  
Vol 200 ◽  
pp. 105479
Author(s):  
Lauren H. McWhinnie ◽  
Patrick D. O'Hara ◽  
Casey Hilliard ◽  
Nicole Le Baron ◽  
Leh Smallshaw ◽  
...  
Keyword(s):  
Killer Whale ◽  
Salish Sea ◽  
Critical Habitat ◽  
Management And Conservation

The fuzzy structure of populations

2002 ◽  
Vol 80 (12) ◽  
pp. 2235-2241 ◽  
Author(s):  
James A Schaefer ◽  
Chris C Wilson
Keyword(s):  
Rangifer Tarandus ◽  
Human Perception ◽  
Fuzzy Classification ◽  
Resolving Power ◽  
Biological Organization ◽  
Philosophical Foundations ◽  
Living Things ◽  
Biological World ◽  
Multiple Clusters ◽  
Management And Conservation

The human perception of biological organization has profound implications for the study, management, and conservation of living things. Traditional methods of classification, which imply all-or-nothing group membership, are inconsistent with the modern synthesis, which stresses variability and unique individuals. We propose that fuzzy classification, which allows fractional membership in multiple clusters, can more realistically denote many forms of biological organization, such as populations. We used fuzzy clustering to depict the ambiguous structure of a migratory caribou (Rangifer tarandus) herd, based on affinities in space use, and walleye (Stizostedion vitreum) stocks, based on genetic dissimilarities among multilocus genotypes. In both cases, fuzzy memberships conveyed the degree of uncertainty of belonging while resolving cluster memberships for unambiguous and problematic individuals. Vagueness implies that borderline group identity cannot be remedied with more resolving power. Fuzzy classification is more in tune with the empirical and philosophical foundations of our discipline and can reconcile our need to classify with an inherently vague biological world.

scholarly journals Integrating field sports, hare population management and conservation

2010 ◽  
Vol 55 (1) ◽  
pp. 61-71 ◽  
Author(s):  
Neil Reid ◽  
Ciarán Magee ◽  
W. Ian Montgomery
Keyword(s):  
Population Management ◽  
Management And Conservation ◽  
Hare Population ◽  
Field Sports
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