Relationship of habitat stability and intra-specific population dynamics of an obligate corallivore butterflyfish

2005 ◽  
Vol 15 (S1) ◽  
pp. S13-S25 ◽  
Author(s):  
Michael P. Crosby ◽  
Ernst S. Reese
Keyword(s):  
Population Dynamics ◽  
Specific Population ◽  
Habitat Stability ◽  
Relationship Of

scholarly journals Sex‐specific population dynamics of ocelots in Belize using open population spatial capture–recapture

Ecosphere ◽  
2019 ◽  
Vol 10 (7) ◽  
Author(s):  
Christopher B. Satter ◽  
Ben C. Augustine ◽  
Bart J. Harmsen ◽  
Rebecca J. Foster ◽  
Marcella J. Kelly
Keyword(s):  
Population Dynamics ◽  
Specific Population ◽  
Open Population ◽  
Capture Recapture

The Relationship of Spathimeigenia spinigera Townsend (Diptera: Tachinidae) to its Host, Neodiprion swainei Midd. (Hymenoptera: Diprionidae)

1962 ◽  
Vol 94 (8) ◽  
pp. 809-818 ◽  
Author(s):  
H. A. Tripp
Keyword(s):  
Population Dynamics ◽  
Pinus Banksiana ◽  
Jack Pine ◽  
Immature Stages ◽  
Pine Sawfly ◽  
Factors Influencing ◽  
Form Part ◽  
Extensive Program ◽  
Relationship Of ◽  
The Relationship

Studies on the parasites of the Swaine jack pine sawfly, Neodiprion swainei Midd., form part of an extensive program designed to assess the factors influencing population dynamics of this important defoliator of jack pine, Pinus banksiana Lamb. Investigations were carried out in the Province of Quebec between 1955 and 1959 near the headwaters of the Gatineau River, Abitibi County, and continued during 1960 and 1961 near the source of the Vermillion River, County Laviolette. In both areas, one of the principal parasites associated with N. swainei was the tachinid, Spathimeigenia spinigera Townsend. Descriptions of the immature stages of this parasite, and details of its behaviour were published previously (Tripp, 1960).

Secondary Metabolite Relationship of Seven Rose (Rosasp.) Cultivars with the Population Dynamics ofTetranychus urticaeKoch (Trombidiformes: Tetranychidae)

2014 ◽  
Vol 39 (4) ◽  
pp. 797-804 ◽  
Author(s):  
Ricardo Flores-Canales ◽  
Agustín Róbles-Bermudez ◽  
Ernesto Cerna-Chávez ◽  
Roberto Gómez-Aguilar ◽  
Néstor Isiordia-Aquino ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Secondary Metabolite ◽  
Relationship Of

Social Injustice and Public Health

2019 ◽  
Keyword(s):  
Public Health ◽  
Noncommunicable Diseases ◽  
Social Injustice ◽  
Health It ◽  
Specific Population ◽  
Case Examples ◽  
Sustainable Human Development ◽  
Wide Range ◽  
Relationship Of ◽  
The Relationship

The third edition of Social Injustice and Public Health provides a comprehensive, up-to-date resource on the relationship of social injustice to the broad field of public health. It includes 29 chapters and many text boxes on a wide range of relevant issues written by 78 contributors who are expert in their respective areas of work. The book includes many descriptions of social injustice and its adverse effects on health, supplemented with many tables, graphs, photographs, and case examples—and many recommendations on what needs to be done to address social injustice. Social Injustice and Public Health is divided into four parts. Part I describes the nature of social injustice and its overall impact on public health. Part II describes how the health of specific population groups is affected by social injustice. Part III describes how social injustice adversely impacts various aspects of health, such as infectious diseases, nutrition, noncommunicable diseases, mental health, and violence. Part IV broadly addresses what needs to be done, from a variety of perspectives, ranging from addressing social injustice in a human rights context, to strengthening communities, to promoting equitable and sustainable human development.

scholarly journals Estimating taxon‐specific population dynamics in diverse microbial communities

Ecosphere ◽  
2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Benjamin J. Koch ◽  
Theresa A. McHugh ◽  
Michaela Hayer ◽  
Egbert Schwartz ◽  
Steven J. Blazewicz ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Microbial Communities ◽  
Specific Population

scholarly journals Population dynamics of anchovy pekto (Stolephorus waitei) in the waters of Malacca Strait, North Sumatra, Indonesia

2021 ◽  
Vol 22 (7) ◽  
Author(s):  
Miswar Budi Mulya ◽  
ARLEN HANEL JHON ◽  
ZULHAM APANDY HARAHAP
Keyword(s):  
Population Dynamics ◽  
Growth Parameters ◽  
Good Condition ◽  
Fork Length ◽  
Total Mortality ◽  
Recruitment Pattern ◽  
Water Region ◽  
Relationship Of ◽  
North Sumatra ◽  
Malacca Strait

Abstract. Mulya MB, Jhon AH, Harahap ZA. 2021. Population dynamics of anchovy pekto (Stolephorus waitei) in the waters of Malacca Strait, North Sumatra, Indonesia. Biodiversitas 22: 2693-2698. Anchovy pekto or Stolephorus waitei (Engraluidae: Clupeiformes) is one of the fish in the eastern coastal part of North Sumatra, occupying the waters of Malacca Strait. This research presents the population dynamics of S. waitei following its age, growth, mortality, and recruitment pattern based on the length-frequency data. Fork length (FL) and total weight (TW) data of S. waitei were collected at three sites from April to September 2018. A total of 1994 specimens with FL from 4.0 to 6.7 cm and TW from 0.2 to 2.3 g with the length-weight relationship of TW = 0.073FL3.0046 (R2=0.765) indicated a near isometric and positive allometric growth in the water region. The relative condition factor (Kn) ranged from 1.01 to 1.02, indicating an estimate of good condition of the fishes. The growth parameters based on von Bertalanffy was 6.56 cm (L?) with the growth coefficient (K) of 0.34 yr-1 and t0 (anchovy age at zero length ) of 0.6506. The total mortality (Z), natural mortality (F), and catch mortality (M) of S. waitei were 0.64, 1.39, and 0.75 yr-1 respectively, which suggest that the fishing activities of S. waitei are still in normal intensity. The recruitment pattern of S. waitei was stable between April and August with its peak in June by 14.21%. The fishing activities may then be limited during the spawning months (May to June) of S. waitei to maintain their population in the Strait of Malacca.

scholarly journals Sex-specific population dynamics and demography of capercaillie (Tetrao urogallus L.) in a patchy environment

2019 ◽  
Author(s):  
Ben C. Augustine ◽  
Marc Kéry ◽  
Juanita Olano Marin ◽  
Pierre Mollet ◽  
Gilberto Pasinelli ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Population Trends ◽  
Tetrao Urogallus ◽  
Male Population ◽  
Specific Population ◽  
Female Population ◽  
Open Population ◽  
Species Of Conservation Concern ◽  
Conservation Concern ◽  
Scr Model

AbstractModeling the population dynamics of patchily distributed species is a challenge, particularly when inference must be based on incomplete and small data sets such as those from most species of conservation concern. Open population spatial capture-recapture (SCR) models are ideally suited to quantify population trends, but have seen only limited use since their introduction.To investigate population trend and sex-specific population dynamics, we applied an open SCR model to a capercaillie (Tetrao urogallus) population in Switzerland living in eight distinct forest patches totalling 22 km2 within a region of 908 km2. The population was surveyed using genetic sampling of scat in 2009, 2012 and 2015. We fit an open SCR model with sex-specific detection and population dynamics parameters while accounting for the patchy distribution of habitat and the uncertainty introduced by observing the population in three years only.Between 2009 and 2015, a total of 143 males, 112 females and 4 individuals of uncertain sex were detected. The annual per capita recruitment rate was estimated at 0.115 (SE 0.0144) for males and 0.127 (0.0168) for females. The estimated annual survival probability for males was 0.758 (0.0241) and 0.707 (0.0356) for females. The population trajectory implied by these survival and recruitment estimates was a decline of 2% per year; however, the sex specificity of the model revealed a decline in the male population only, with no evidence of decline in the female population. Further, the population decline observed in males was explained by the demography of just two of the eight patches.Using a customized open population SCR model, we determined that the endangered capercaillie in our Swiss study area had a stable female population and a declining male population, with the male decline due to population dynamics in a subset of the study area. Our study highlights the flexibility of open population SCR models for assessing population trajectories through time and across space and emphasizes the desirability of estimating sex-stratified population trends especially in species of conservation concern.

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