Seasonal and Diel Environmental Conditions Predict Western Pond Turtle (Emys marmorata) Behavior at a Perennial and an Ephemeral Stream in Sequoia National Park, California

2017 ◽  
Vol 16 (1) ◽  
pp. 20
Author(s):  
Gabrielle E. Ruso ◽  
Erik Meyer ◽  
Adrian J. Das
Keyword(s):  
Environmental Conditions ◽  
National Park ◽  
Ephemeral Stream ◽  
Sequoia National Park ◽  
Pond Turtle ◽  
Western Pond Turtle

scholarly journals Spatial distribution of spruce trees in the nature reserve 'Jankove bare' on mt. Kopaonik

2009 ◽  
pp. 191-204
Author(s):  
Branko Stajic ◽  
Milivoj Vuckovic ◽  
Marko Smiljanic
Keyword(s):  
Spatial Distribution ◽  
Tree Growth ◽  
Environmental Conditions ◽  
National Park ◽  
Nature Reserve ◽  
Distance Methods ◽  
Study Results

The methodology and applicability of the study of spatial distribution of trees in Serbian forestry have been insufficiently reported and presented. This paper, based on mathematical?statistical principles, analyses the method of spatial distribution of spruce trees in the Nature Reserve 'Jankove Bare' in the National Park 'Kopaonik'. The following methods in the group of distance methods were applied: Kotar's method (1993), T2?method, and the index of distance dispersion (Johnson, Zimmer, 1985). The study results in a pure uneven-aged spruce stand based on all three methods showed that spruce trees are randomly distributed over the stand area. Therefore, environmental conditions in the study stand can be regarded as homogeneous and equally suitable for tree growth, and there are no significant interactions between the trees, which could cause a higher competition between the trees for nutrients, water, etc.

scholarly journals Effects of life history stage and climatic conditions on fecal egg counts in plains zebras (Equus quagga) in the Serengeti National Park

2020 ◽  
Vol 119 (10) ◽  
pp. 3401-3413
Author(s):  
Peter A. Seeber ◽  
Tetiana A. Kuzmina ◽  
Alex D. Greenwood ◽  
Marion L. East
Keyword(s):  
Life History ◽  
Environmental Conditions ◽  
National Park ◽  
Climatic Conditions ◽  
Life History Stage ◽  
Gastrointestinal Parasite ◽  
Serengeti Ecosystem ◽  
Life History Stages ◽  
Lactating Females ◽  
Host Life

Abstract In wildlife, endoparasite burden can be affected by host life history stage, environmental conditions, host abundance, and parasite co-infections. We tested the effects of these factors on gastrointestinal parasite infection in plains zebras (Equus quagga) in the Serengeti ecosystem, Tanzania, using fecal egg counts of two nematode families (Strongylidae and Ascarididae) and the presence/absence of cestode (Anoplocephalidae) eggs. We predicted higher egg counts of Strongylidae and Ascarididae, and increased likelihood of Anoplocephalidae infection in individuals (1) during energetically costly life history stages when resource allocation to immune processes may decrease and in young zebras after weaning because of increased uptake of infective stages with forage, (2) when climatic conditions facilitate survival of infective stages, (3) when large zebra aggregations increase forage contamination with infective stages, and (4) in individuals co-infected with more than one parasite group as this may indicate reduced immune competence. Strongylidae egg counts were higher, and the occurrence of Anoplocephalidae eggs was more likely in bachelors than in band stallions, whereas Ascarididae egg counts were higher in band stallions. Strongylidae and Ascarididae egg counts were not increased in lactating females. Strongylidae egg counts were higher in subadults than in foals. Regardless of sex and age, Ascarididae infections were more likely under wet conditions. Co-infections did not affect Strongylidae egg counts. Ascarididae egg counts in adult females were higher when individuals were co-infected with Anoplocephalidae. We present evidence that parasite burdens in plains zebras are affected by life history stage, environmental conditions, and co-infection.

scholarly journals Multi-Millennial Fire History of the Giant Forest, Sequoia National Park, California, USA

Fire Ecology ◽  
2009 ◽  
Vol 5 (3) ◽  
pp. 120-150 ◽  
Author(s):  
Thomas W. Swetnam ◽  
Christopher H. Baisan ◽  
Anthony C. Caprio ◽  
Peter M. Brown ◽  
Ramzi Touchan ◽  
...  
Keyword(s):  
National Park ◽  
Fire History ◽  
Sequoia National Park ◽  
History Of

Summer die-off of western pond turtle (Actinemys marmorata) along an intermittent coast range stream in central California

2016 ◽  
Vol 61 (1) ◽  
pp. 71-74 ◽  
Author(s):  
Robert A. Leidy ◽  
Michael T. Bogan ◽  
Linnea Neuhaus ◽  
Leana Rosetti ◽  
Stephanie M. Carlson
Keyword(s):  
Coast Range ◽  
Central California ◽  
Pond Turtle ◽  
Western Pond Turtle ◽  
Actinemys Marmorata
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