scholarly journals Prevalence of Batrachochytrium dendrobatidis in immature eastern hellbenders Cryptobranchus alleganiensis from North Carolina, USA

2020 ◽  
Vol 140 ◽  
pp. 73-78
Author(s):  
L Diaz ◽  
O Hernandez-Gomez ◽  
SD Unger ◽  
LA Williams ◽  
CM Bodinof Jachowski
Keyword(s):  
North Carolina ◽  
Batrachochytrium Dendrobatidis ◽  
Negative Effects ◽  
Age Classes ◽  
Field Surveys ◽  
Adult Age ◽  
Anthropogenic Stressors ◽  
Cryptobranchus Alleganiensis ◽  
Western North Carolina ◽  
The Individual

Batrachochytrium dendrobatidis (Bd) has been detected in wild hellbender Cryptobranchus alleganiensis populations, with rare instances of chytridiomycosis and Bd-induced mortality. To date, Bd surveillance in hellbender populations has been disproportionately focused on adult age classes. A lingering question is whether Bd might contribute to hellbender declines through disproportionate negative effects on immature age classes. The objective of this study was to quantify Bd prevalence and load in immature hellbenders in western North Carolina, USA. We conducted field surveys during 2018 and 2019 and collected 88 skin swabs from 84 hellbenders spanning 3 age classes. Bd was detected on 11% of individuals, including 8 larvae and 1 juvenile. We did not detect symptoms of chytridiomycosis or a decline in body condition in Bd-positive hellbenders. Load varied from approximately 1-153 zoospore equivalents for the 9 Bd-positive hellbenders and was not associated with size class of the individual. While hellbenders appeared to be abundant in each survey reach, more work is needed to determine whether Bd may increase the vulnerability of immature hellbenders to anthropogenic stressors.

scholarly journals Studi Kelompok Siamang (Hylobates Syndactylus) Di Repong Damar Pahmungan Pesisir Barat

2015 ◽  
Vol 3 (3) ◽  
pp. 85 ◽  
Author(s):  
Erna Maya Sari ◽  
Sugeng P. Harianto
Keyword(s):  
Sex Ratio ◽  
National Park ◽  
Local Community ◽  
Agroforestry Systems ◽  
Age Classes ◽  
Adult Age ◽  
Age Class ◽  
Hylobates Syndactylus ◽  
The Individual ◽  
Coastal District

Repong Damar in Pahmungan, West Coastal District is a buffer of Bukit Barisan Selatan National Park (TNBBS).  Repong Damar is one example of the success of agroforestry systems managed by local community that is still very traditional.  This area was identified as a component of siamang (Hylobates syndactylus) habitat.  The absence of data and the latest information about the siamang groups in Pekon Pahmungan were reasons of this research.  The purpose of this research was to determine the siamang groups in Repong Damar, used concentrated area methode.  The research was done on April 2015.  The results showed that the existence of siamang group in Repong Damar Pahmungan were 4 individuals/group.  The distribution of age classes in the individual phases of adult siamang were 2 individuals and the individual of adolescent phase were 2 individuals.  The sex ratio in the adult age class phase was 1:1 and at adolescent age class phase was 1:1.  Keywords: siamang, groups, repong damar

scholarly journals Studi Populasi Siamang (Simphalangus syndactylus) DI Hutan Lindung Register 25 Pematang Tanggang Kabupaten Tanggamus

2017 ◽  
Vol 5 (3) ◽  
pp. 66
Author(s):  
Nur Lutfiatuz Zahra ◽  
Gunardi Djoko Winarno
Keyword(s):  
Land Use ◽  
Sex Ratio ◽  
Government Regulation ◽  
Community Forest ◽  
Age Classes ◽  
Adult Age ◽  
Age Class ◽  
Adult Phase ◽  
The Individual ◽  
Individual Adult

Siamang (Simphalangus syndactylus Raffles, 1821) was the primates that protected by government regulation of Republic Indonesia number 7 in 1999. The existence of the siamang was important role in forest as pollinator and seed dispersers. Conversion land has increased into plantations and agriculture so that siamang population became descreased. Protected forest on Register 25 Pematang Tanggang Tanggamus Regency was bordered by community forest, thus vulnerable to land use that siamang population became descreased. The aimed of the research was to find the size of the group, the composition of age, the sexual ratio and the habitat of siamang in protected forest Register 25 Pematang Tanggang. The method used an area concentrated in 3 areal observation. Observations were 30 days effective. The results of this research showed that the Group of siamang found about 3 groups/7 individuals. The distribution of age classes in the individual adult phase of siamang about 6 individuals, adolescent phase about 1 individual and baby phase not found in this group. The sex ratio value in the adult age class phase was 1:1 and at adolescent age class phase was 1:0. According to siamang society does not interfere with human activities so that  not harm for them and their habitat was quite adequate for a population of siamang. Keywords: protected forest, population, siamang

Associated habitat and population characteristics of the Hiwassee headwater crayfish, Cambarus parrishi, in north Georgia

2015 ◽  
Vol 21 (1) ◽  
pp. 83-93
Author(s):  
Johnathan G. Davis ◽  
Kaycee Cash ◽  
Brittany Henry ◽  
Sydnee Weaver
Keyword(s):  
North Carolina ◽  
Additional Data ◽  
Historical Data ◽  
Population Characteristics ◽  
Linear Modeling ◽  
Age Classes ◽  
Heterogeneous Habitats ◽  
Western North Carolina ◽  
High Elevations ◽  
Comprehensive Study

Abstract Cambarus parrishi is a rare, stream-dwelling crayfish endemic to the upper Hiwassee River watershed in northeastern Georgia and western North Carolina. A two year survey of C. parrishi at 22 sites across 4 streams was conducted to identify microhabitat associations and population characteristics, and represents the most comprehensive study of this species within Georgia. Field sampling expanded the range of C. parrishi to four separate streams in Georgia and resulted in the capture of 141 individuals. Generalized linear modeling of C. parrishi density demonstrated strong associations near stream banks with rough substrates composed of abundant cobbles and small boulders. Cambarus parrishi were reproductively active from September through October and reached sexual maturity earlier than indicated by historical data. Five possible age classes were defined with an unbalanced 1.7:1 (females:males) sex ratio. Cambarus parrishi exists mostly on federally-managed lands at high elevations. However, development activities that introduce fine substrates and eliminate heterogeneous habitats preferred by most stream-dwelling crayfishes could threaten this species. Although this study increased knowledge of the range of C. parrishi, additional data on population, habitat use, life history, and occurrences in other tributaries within the watershed are still needed.

Variations in Alkaloid Concentrations in Wild-harvested Goldenseal from Western North Carolina

Planta Medica ◽  
2012 ◽  
Vol 78 (05) ◽  
Author(s):  
J Clement ◽  
J Torgerson ◽  
P Looney ◽  
S Faulkner ◽  
L DeWald
Keyword(s):  
North Carolina ◽  
Western North Carolina

Western North Carolina report card on forest sustainability

2011 ◽  
Author(s):  
Susan Fox ◽  
Bill Jackson ◽  
Sarah Jackson ◽  
Gary Kauffmann ◽  
Mary Carol Koester ◽  
...  
Keyword(s):  
North Carolina ◽  
Report Card ◽  
Forest Sustainability ◽  
Western North Carolina

Grünbrücke Loterbuck A 4.2.9: Eine Erfolgskontrolle nach drei Jahren | Fauna Overbridge Loterbuck A 4.2.9: Success Control after a Period of Three Years

2000 ◽  
Vol 151 (8) ◽  
pp. 290-297
Author(s):  
Stephan Hatt
Keyword(s):  
Local People ◽  
Traffic Network ◽  
Negative Effects ◽  
The Individual

The expansion of the traffic network, in particular the construction of highways, has continuously diminished and divided into small sections the habitat of wild-living animals during the last decades. However, these negative effects can be minimised if suitable measures with regard to line-conduction and construction are taken against. One of these possibilities are the sown-down overbridges. It is essential that these constructions are planned and built in order to meet the requirements of their future users – the various wild-living animals. This study investigates the success of one of these sown-down overbridges. It is this the Loterbuck-overbridge on the A 4.2.9 near Henggart in the canton of Zurich, Switzerland. The focus of this investigation was to find out which species of wild-living animals use the bridge and how much it is frequented. Local people and specialists of the region were interviewed and tracks were picked up on site. Taking into consideration five criteria (species of wild-living animals, positioning and number of overbridges nearby, dimensioning and design of the individual overbridges), the interviews and tracks were assessed. The Loterbuck-overbridge is used by all larger wild-living animals of the region. Especially the browsing and rubbing tracks of deer show that the overbridge has been accepted not only as sown-down overbridge but also as habitat.

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