scholarly journals Long-Term Ecological Monitoring Field Sampling Plan for 2007

2007 ◽  
Author(s):  
T Haney ◽  
R VanHorn
Keyword(s):  
Ecological Monitoring ◽  
Sampling Plan ◽  
Field Sampling

Long-Term Environmental and Socio-ecological Monitoring in Transboundary Landscapes; An Interdisciplinary Implementation Framework - ICIMOD Working Paper 2015/2

2015 ◽  
Author(s):  
N. Chettri ◽  
P. Bubb ◽  
R. Kotru ◽  
G. Rawat ◽  
R. Ghate ◽  
...  
Keyword(s):  
Ecological Monitoring ◽  
Implementation Framework ◽  
Working Paper

scholarly journals Simulated Fishing to Untangle Catchability and Availability in Fish Abundance Monitoring

2021 ◽  
Vol 19 (3) ◽  
Author(s):  
Vanessa Tobias ◽  
Keyword(s):  
San Francisco ◽  
Water Clarity ◽  
Ecological Monitoring ◽  
Monitoring Data ◽  
Delta Smelt ◽  
Individual Based Simulation ◽  
The Relationship ◽  
True Population

In fisheries monitoring, catch is assumed to be a product of fishing intensity, catchability, and availability, where availability is defined as the number or biomass of fish present and catchability refers to the relationship between catch rate and the true population. Ecological monitoring programs use catch per unit of effort (CPUE) to standardize catch and monitor changes in fish populations; however, CPUE is proportional to the portion of the population that is vulnerable to the type of gear used in sampling, which is not necessarily the entire population. Programs often deal with this problem by assuming that catchability is constant, but if catchability is not constant, it is not possible to separate the effects of catchability and population size using monitoring data alone. This study uses individual-based simulation to separate the effects of changing environmental conditions on catchability and availability in environmental monitoring data. The simulation combines a module for sampling conditions with a module for individual fish behavior to estimate the proportion of available fish that would escape from the sample. The method is applied to the case study of the well monitored fish species Delta Smelt (Hypomesus transpacificus) in the San Francisco Estuary, where it has been hypothesized that changing water clarity may affect catchability for long-term monitoring studies. Results of this study indicate that given constraints on Delta Smelt swimming ability, it is unlikely that the apparent declines in Delta Smelt abundance are the result of changing water clarity affecting catchability.

scholarly journals Alois Zlatnik – ein wegweisender Forscher in transkarpatischen Urwäldern | Alois Zlatnik – Innovative researcher in the virgin forests of Transcarpathia

2003 ◽  
Vol 154 (6) ◽  
pp. 219-225
Author(s):  
Stepan Stoyko ◽  
Ivan Delehan ◽  
Nino Kuhn ◽  
Vasyl Lavnyy
Keyword(s):  
Nature Conservation ◽  
Academic Career ◽  
Ecological Monitoring ◽  
Plant Taxonomy ◽  
Mountain Regions ◽  
Ecosystem Research ◽  
The Czech Republic ◽  
Ecological Principles ◽  
Forest Typology

Professor Alois Zlatnik (born 1902 in Dvur Kralovy, Czechoslovakia,died 1979 in Brno) was a well-known scientific researcher in the Czech Republic, Slovakia and other European countries. His academic career encompassed forest typology,phytobiocoenology, vegetation ecology and plant taxonomy. His fundamental exploration of the biocoenological structure of the virgin forests of Transcarpathia (Ukraine) commenced in the 1930s. At the same time he can be seen as the founder of long-term forest ecosystem research (ecological monitoring). Zlatnik was also an innovator regarding ecological principles of nature conservation of mountain regions.

scholarly journals Simulated Fishing to Untangle Catchability and Availability in Fish Abundance Monitoring

2021 ◽  
Author(s):  
Vanessa Tobias
Keyword(s):  
San Francisco ◽  
Water Clarity ◽  
Ecological Monitoring ◽  
Monitoring Data ◽  
Delta Smelt ◽  
Individual Based Simulation ◽  
The Relationship ◽  
True Population

In fisheries monitoring, catch is assumed to be a product of fishing intensity, catchability, and availability, where availability is defined as the number or biomass of fish present and catchability refers to the relationship between catch rate and the true population. Ecological monitoring programs use catch per unit of effort (CPUE) to standardize catch and monitor changes in fish populations; however, CPUE is proportional to the portion of the population that is vulnerable to the type of gear that is used in sampling, which is not necessarily the entire population. Programs often deal with this problem by assuming that catchability is constant, but if catchability is not constant, it is not possible to separate the effects of catchability and population size using monitoring data alone. This study uses individual-based simulation to separate the effects of changing environmental conditions on catchability and availability in environmental monitoring data. The simulation combines a module for sampling conditions with a module for individual fish behavior to estimate the proportion of available fish that would escape from the sample. The method is applied to the case study of the well-monitored fish species Delta Smelt (Hypomesus transpacificus) in the San Francisco Estuary, where it has been hypothesized that changing water clarity may affect catchability for long-term monitoring studies. Results of this study indicate that given constraints on Delta Smelt swimming ability, it is unlikely that the apparent declines in Delta Smelt abundance are due to an effect of changing water clarity on catchability.

scholarly journals Remedial investigation sampling and analysis plan for J-Field, Aberdeen Proving Ground, Maryland. Volume 1: Field Sampling Plan

10.2172/87310 ◽  
1995 ◽  
Author(s):  
P. Benioff ◽  
R. Biang ◽  
D. Dolak ◽  
C. Dunn ◽  
L. Martino ◽  
...  
Keyword(s):  
Sampling Plan ◽  
Field Sampling ◽  
Aberdeen Proving Ground ◽  
Sampling And Analysis Plan

Long-term ecological monitoring and institutional memories

2017 ◽  
Vol 18 (3) ◽  
pp. 200-204
Author(s):  
David Lamb
Keyword(s):  
Ecological Monitoring

scholarly journals Ecosystem Health Assessment of World Natural Heritage Sites Based on Remote Sensing and Field Sampling Verification: Bayanbulak as Case Study

2020 ◽  
Vol 12 (7) ◽  
pp. 2610
Author(s):  
Zhi Wang ◽  
Zhaoping Yang ◽  
Hui Shi ◽  
Fang Han ◽  
Qin Liu ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Ecosystem Health ◽  
Buffer Zone ◽  
Ecological Monitoring ◽  
Scientific Basis ◽  
Field Sampling ◽  
Natural Heritage ◽  
Heritage Sites ◽  
World Natural Heritage ◽  
Over Time

Monitoring the ecosystem health for world natural heritage sites is essential for protecting them and benefits the formulation of more targeted protection policies. This study used Bayanbulak world natural heritage site as a case, established a framework for assessing the ecosystem health through remote sensing based on the parameters of ecosystem vigour, organization, resilience, and services. Then, we verified the obtained results through field sampling. The results show that the ecosystem health in the overall study area had declined over time, however, the health within the property zone remained at high levels and stable. The area proportion of low health was low and primarily distributed in the buffer zone. Thus, in general, the ecosystem in the study area was healthy. Besides, the ecosystem health exhibited distinct spatial agglomeration characteristics, and the degree of agglomeration enhanced over time. In addition, the field vegetation samplings were consistent with the changes in the ecosystem health levels, therefore, the result of RS monitoring of ecosystem health were credible. Thus, this study provides a scientific basis for heritage managers to formulate suitable ecological protection policies and should aid further research on the ecological monitoring of heritage sites.

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