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R语言 secr包 ovenbird()函数中文帮助文档(中英文对照)

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发表于 2012-9-30 00:00:21 | 显示全部楼层 |阅读模式
ovenbird(secr)
ovenbird()所属R语言包:secr

                                         Ovenbird Mist-netting Dataset
                                         Ovenbird雾网数据集

                                         译者:生物统计家园网 机器人LoveR

描述----------Description----------

Data from a multi-year mist-netting study of ovenbirds (Seiurus aurocapilla) at a site in Maryland, USA.
从一年多雾网研究ovenbirds(Seiurus aurocapilla)在美国马里兰州的网站的数据。


用法----------Usage----------


data(ovenbird)



Details

详细信息----------Details----------

From 2005 to 2009 D. K. Dawson and M. G. Efford conducted a capture–recapture survey of breeding birds in deciduous forest at the Patuxent Research Refuge near Laurel, Maryland, USA.  The forest was described by Stamm, Davis & Robbins (1960), and has changed little since.  Analyses of data from previous mist-netting at the site by Chan Robbins were described in Efford, Dawson & Robbins (2004) and Borchers & Efford (2008).
从2005年到2009年,,DK道森和MG Efford进行的捕获 - 再捕获在落叶阔叶林的鸟类繁殖调查的桂冠,马里兰州,美国的的帕塔克森特研究保护区附近。森林斯塔姆,戴维斯和罗宾斯(1960)所描述的,自那以后几乎没有改变。从以前的雾网在现场的陈罗宾斯的数据分析Efford,道森·罗宾斯(2004年)和BORCHERS Efford(2008年)。

Forty-four mist nets (12 m long, 30-mm mesh) spaced 30 m apart on the perimeter of a 600-m x 100-m rectangle were operated for approximately 9 hours on each of 9 or 10 non-consecutive days during late May and June in each year.  Netting was passive (i.e. song playback was not used to lure birds into the nets).  Birds received individually numbered bands, and both newly banded and previously banded birds were released at the net where captured.  Sex was determined in the hand from the presence of a brood patch (females) or cloacal protuberance (males).  A small amount of extra netting was done by other researchers after the main session in some years.
48个雾网(12米长,30毫米目)间隔30米外一个600米×100米的矩形的周长运行约9小时9或10个非连续两天在五月下旬和每年6月。网是被动的(如歌曲播放,用来引诱到网鸟)。鸟带独立编号,和新的团结和以前环志的鸟类,发布在网拍摄。性别确定的手从育雏补丁(女性)或泄殖腔突起(男性)的存在。少量额外的扣除由其他研究人员在一些年后的主要会议。

This dataset comprises all records of adult (after-hatch-year) ovenbirds caught during the main session in each of the five years 2005–2009.  One ovenbird was killed by a predator in the net in 2009, as indicated by a negative net number in the dataset.  Sex was determined in the hand from the presence of a brood patch (females) or cloacal protuberance (males). Birds are listed by their band number (4-digit prefix, ".", and 5-digit number).  Recaptures within a day are not included in this dataset, so each bird occurs at most once per day and the detector type is "multi" rather than "proximity".  Although several individuals were captured in more than one year, no use is made of this information in the analyses presently offered in secr.
此数据集的所有记录包括成人(后,舱口年)的ovenbirds在2005-2009年的五个主要会议期间捕获的。一个ovenbird被打死的“捕食者”在2009年的净,净负号的数据集。性别确定的手从育雏补丁(女性)或泄殖腔突起(男性)的存在。禽鸟列出由条带数(4位前缀,。,和5位数字)。不包括在一天之内夺回这个数据集,因此每个鸟最多出现一次,每天和检测器类型是“多”,而不是“接近性”。虽然有几个人被抓获一年以上,没有使用这些信息在分析目前提供secr。

The data are provided as a multi-session capthist object "ovenCH".  Sex is coded as a categorical individual covariate ("M" or "F").
这些数据提供多会话capthist对象“ovenCH的”中。性别编码作为一个明确的,个别协(“M”或“F”)。

An analysis of the data for males in the first four years showed that they tended to avoid nets after their first capture within a season (Dawson & Efford 2009).  While the species was present consistently, the number of detections in any one year was too small to give reliable estimates of density; pooling of detection parameters across years helped to improve precision.
男性前四年的数据分析表明,他们倾向于避免网后的第一次捕捉一个赛季内(道森&Efford 2009)。虽然品种一致,在任何一年的检测提供了可靠的估计密度太小,汇集整个有助于提高精度的检测参数。

Included with the data are a mask and four models fitted as in Examples.
包括的数据是一个面具,四款车型配备的例子。


源----------Source----------

D. K. Dawson (ddawson@usgs.gov) and M. G. Efford unpublished data.
DK森(ddawson@usgs.gov)的和MG Efford的未发表的数据。


参考文献----------References----------

likelihood methods for capture-recapture studies. Biometrics 64, 377–385.
acoustic signals. Journal of Applied Ecology 46, 1201–1209.
for analysing capture-recapture data from passive detector arrays. Animal Biodiversity and Conservation 27, 217–228.
wild bird populations by mist-netting and banding. Bird-Banding 31, 115–130.

参见----------See Also----------

capthist
capthist


实例----------Examples----------



## Not run: [#不运行:]

## commands used to create ovenCH from the input files[#用于创建ovenCH从输入文件的命令]
## "netsites0509.txt" and "ovencapt.txt"[#“netsites0509.txt”和“ovencapt.txt的”]
## for information only - these files not distributed[#仅供参考 - 这些文件分布]
netsites0509 <- read.traps(file = "netsites0509.txt",
    skip = 1, detector = "multi")
temp <- read.table("ovencapt.txt", colClasses=c("character",
    "character", "numeric", "numeric", "character"))
ovenCH <- make.capthist(temp, netsites0509, covnames=c("Sex"))


## End(Not run)[#(不执行)]

oldpar <- par(mfrow = c(1,5), mar = c(1,1,4,1))
plot(ovenCH, tracks = TRUE, varycol = TRUE)
par(oldpar)

counts(ovenCH, "n")

## Not run: [#不运行:]

## array constant over years, so build mask only once[数组常量多年来,因此,建立面膜一次]
ovenmask <- make.mask(traps(ovenCH)[["2005"]], type="pdot", buffer=400,
    spacing=15, detectpar=list(g0=0.03, sigma=90), nocc=10)

## fit constant-density model[#适合恒定密度模型]
ovenbird.model.1 <- secr.fit(ovenCH, mask = ovenmask)
ovenbird.model.1

## fit net avoidance model[#适合净回避模型]
ovenbird.model.1b <- secr.fit(ovenCH, mask = ovenmask, model =
    list(g0~b))
ovenbird.model.1b

## fit model with time trend in detection[随着时间的推移趋势的检测拟合模型]
ovenbird.model.1T <- secr.fit(ovenCH, mask = ovenmask, model =
    list(g0 ~ T))
ovenbird.model.1T

## fit model with 2-class mixture for g0[2级混合G0#拟合模型]
ovenbird.model.h2 <- secr.fit(ovenCH, mask = ovenmask, model =
    list(g0~h2))
ovenbird.model.h2


## End(Not run)[#(不执行)]

## compare &amp; average pre-fitted models[#比较前的平均拟合模型]
AIC (ovenbird.model.1, ovenbird.model.1b, ovenbird.model.1T,
    ovenbird.model.h2)
model.average (ovenbird.model.1,ovenbird.model.1b, ovenbird.model.1T,
    ovenbird.model.h2, realnames = "D")

## select one year to plot[#选择一年的绘制]
plot(ovenbird.model.1b, newdata = data.frame(session = "2005",
    b = 0))


转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。


注:
注1:为了方便大家学习,本文档为生物统计家园网机器人LoveR翻译而成,仅供个人R语言学习参考使用,生物统计家园保留版权。
注2:由于是机器人自动翻译,难免有不准确之处,使用时仔细对照中、英文内容进行反复理解,可以帮助R语言的学习。
注3:如遇到不准确之处,请在本贴的后面进行回帖,我们会逐渐进行修订。
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