scholarly journals Kangaroo management in the South Australian rangelands: Impacts and challenges for conservation management

2021 ◽  
Vol 22 (S1) ◽  
pp. 24-34 ◽  
Author(s):  
Graeme Finlayson ◽  
Kurt Tschirner ◽  
Justin McCann ◽  
Matt Appleby
Keyword(s):  
Conservation Management ◽  
The South

scholarly journals Microclimate Observation at Hermann’s Tortoise (Testudo hermanni boettgeri) Habitat in the “Iron Gates” Natural Park. Case Study: Lower Eșelniţa Watershed (Banat, Romania)

2014 ◽  
Vol 16 (3) ◽  
pp. 47-58
Author(s):  
Cristiana-Maria Ciocanea ◽  
Athanasios-Alexandru Gavrilidis ◽  
Vasile Bagrinovschi
Keyword(s):  
Climate Change ◽  
Global Climate Change ◽  
Vegetation Structure ◽  
Conservation Management ◽  
Global Climate ◽  
Suitable Habitat ◽  
The South ◽  
Natural Park ◽  
Testudo Hermanni

Abstract “Iron Gates” Natural Park is located in the South-Western part of Romania and is recognized for its great diversity of ecosystems, wide variety of species and emblematic landscapes. Due to its Mediterranean climatic influences and vegetation structure, the area is a suitable habitat for the existence and development of Testudo hermanni boettgeri. Monitoring both, the evolution of the microclimatic features in the lower Eșelnița watershed and the species behaviour, represents a useful step in order to determine if the global climate change endangers the conservation management of the tortoise.

scholarly journals Population structure and historical demography of South American sea lions provide insights into the catastrophic decline of a marine mammal population

2016 ◽  
Vol 3 (7) ◽  
pp. 160291 ◽  
Author(s):  
J. I. Hoffman ◽  
G. J. Kowalski ◽  
A. Klimova ◽  
L. J. Eberhart-Phillips ◽  
I. J. Staniland ◽  
...  
Keyword(s):  
Population Structure ◽  
Large Scale ◽  
Conservation Management ◽  
Population Decline ◽  
Natural Populations ◽  
Hypervariable Region ◽  
Baseline Data ◽  
South American ◽  
The South ◽  
Demographic Bottleneck

Understanding the causes of population decline is crucial for conservation management. We therefore used genetic analysis both to provide baseline data on population structure and to evaluate hypotheses for the catastrophic decline of the South American sea lion ( Otaria flavescens ) at the Falkland Islands (Malvinas) in the South Atlantic. We genotyped 259 animals from 23 colonies across the Falklands at 281 bp of the mitochondrial hypervariable region and 22 microsatellites. A weak signature of population structure was detected, genetic diversity was moderately high in comparison with other pinniped species, and no evidence was found for the decline being associated with a strong demographic bottleneck. By combining our mitochondrial data with published sequences from Argentina, Brazil, Chile and Peru, we also uncovered strong maternally directed population structure across the geographical range of the species. In particular, very few shared haplotypes were found between the Falklands and South America, and this was reflected in correspondingly low migration rate estimates. These findings do not support the prominent hypothesis that the decline was caused by migration to Argentina, where large-scale commercial harvesting operations claimed over half a million animals. Thus, our study not only provides baseline data for conservation management but also reveals the potential for genetic studies to shed light upon long-standing questions pertaining to the history and fate of natural populations.

scholarly journals Evaluating threats and conservation status of South African Aloe

2020 ◽  
Vol 12 (11) ◽  
pp. 16614-16619
Author(s):  
Samuel O. Bamigboye
Keyword(s):  
South Africa ◽  
South African ◽  
Conservation Management ◽  
Conservation Status ◽  
Red List ◽  
Biodiversity Hotspots ◽  
The South ◽  
Risk Of Extinction ◽  
Two Factors ◽  
Conservation Concern

South Africa is one of the biodiversity hotspots for Aloe in Africa.  This makes it important to evaluate the conservation status and threats to this genus.  The South African National Biodiversity Institute (SANBI) Red List was employed to evaluate these two factors.  Results revealed that 44% of all species in this genus are of conservation concern with the majority of them facing threats.  This study recommends that more attention such as strengthening the protection of these species and controlling the threats identified in this study should be given to species in this genus in terms of conservation management to reduce their risk of extinction.   

Genetic analysis reveals a distinct and highly diverse koala (Phascolarctos cinereus) population in South Gippsland, Victoria, Australia

2012 ◽  
Vol 34 (1) ◽  
pp. 68 ◽  
Author(s):  
Tristan Lee ◽  
Kyall R. Zenger ◽  
Robert L. Close ◽  
David N. Phalen
Keyword(s):  
Genetic Diversity ◽  
Gene Pool ◽  
Conservation Management ◽  
Anthropogenic Impacts ◽  
Fur Trade ◽  
Management Program ◽  
The South ◽  
Phascolarctos Cinereus ◽  
Australian State ◽  
Agriculture Expansion

Population genetics can reveal otherwise hidden information involving a species’ history in a given region. Koalas were thought to have been virtually exterminated from the Australian state of Victoria during the koala fur trade of the late 1800s. Koalas in the South Gippsland region of Victoria were examined using microsatellite markers to infer population structure and gene flow and to locate a possible remnant gene pool. The results indicate that the South Gippsland koala population had higher genetic diversity (A = 5.97, HO = 0.564) than other published Victorian populations, and was genetically distinct from other koala populations examined. South Gippsland koalas, therefore, may have survived the population reductions of the koala fur trade and now represent a remnant Victorian gene pool that has been largely lost from the remainder of Victoria. This paper illustrates that historic anthropogenic impacts have had little effect on reducing the genetic diversity of a population in the South Gippsland region. However, the South Gippsland population is now subject to threats such as logging and loss of habitat from housing and agriculture expansion. Our results suggest that the South Gippsland koalas require an alternative conservation management program.

Presidential Republicanism in the South, 1960

1962 ◽  
Vol 24 (2) ◽  
pp. 303-322 ◽  
Author(s):  
Bernard Cosman
Keyword(s):  
The South

Long-term Cyclic Variations of Prominences, Green and Red Coronae over Solar Cycles

2000 ◽  
Vol 179 ◽  
pp. 201-204
Author(s):  
Vojtech Rušin ◽  
Milan Minarovjech ◽  
Milan Rybanský
Keyword(s):  
Emission Lines ◽  
High Latitudes ◽  
Green Line ◽  
Solar Cycles ◽  
The South ◽  
Coronal Emission ◽  
Local Maxima ◽  
The North ◽  
Cyclic Variations

AbstractLong-term cyclic variations in the distribution of prominences and intensities of green (530.3 nm) and red (637.4 nm) coronal emission lines over solar cycles 18–23 are presented. Polar prominence branches will reach the poles at different epochs in cycle 23: the north branch at the beginning in 2002 and the south branch a year later (2003), respectively. The local maxima of intensities in the green line show both poleward- and equatorward-migrating branches. The poleward branches will reach the poles around cycle maxima like prominences, while the equatorward branches show a duration of 18 years and will end in cycle minima (2007). The red corona shows mostly equatorward branches. The possibility that these branches begin to develop at high latitudes in the preceding cycles cannot be excluded.

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