Turnover in Breeding Bird Populations on Rottnest I. Western Australia

1985 ◽  
Vol 12 (3) ◽  
pp. 467 ◽  
Author(s):  
DA Saunders ◽  
Rebeira CP de
Keyword(s):  
Turnover Rate ◽  
Marine Species ◽  
Breeding Population ◽  
Extinction Rate ◽  
Turnover Rates ◽  
Breeding Bird ◽  
Bird Populations ◽  
Breeding Populations ◽  
The Right ◽  
Do So

The avifauna of Rottnest Island, W.A., has been surveyed four times between 1904 and 1983: by Lawson in 1904, Glauert (1928), Storr between 1953 and 1962, and ourselves between 1981 and 1983. There were three recorded extinctions and 10 immigrations in the 79-year period, but none of the extinctions and only three of the immigrations could be regarded as valid for calculating natural turnover rates. The remainder had been influenced by human activity; therefore the avifauna extinction rate for Rottnest Island was 0, the immigration rate was 0.04% per year for non-marine species of bird and the relative turnover rate for the 79 years was 0.12% per year. These results for Rottnest I. support the view of Abbott (1978, 1980) that for Australian islands, immigrations and extinctions are infrequent and turnover of breeding species is also infrequent. There have been 109 sightings of vagrants recorded for the island between 1905 and 1983; only one of these had individuals present in sufficient numbers during the breeding season to establish a breeding population. The data show that for one Australian island natural extinctions of both passerines and non-passerines are rare. Water does act as a barrier and although birds do cross water and often appear as vagrants, they very rarely do so in sufficient numbers or at the right time to establish breeding populations.

scholarly journals Monitoring Breeding Bird Populations in Grand Teton National Park

1996 ◽  
Vol 20 ◽  
pp. 35-38
Author(s):  
Martin Cody
Keyword(s):  
National Park ◽  
Information Source ◽  
Monitoring Program ◽  
Bird Species ◽  
Breeding Bird ◽  
Grand Teton National Park ◽  
Subalpine Fir ◽  
Bird Populations ◽  
Breeding Populations ◽  
Jackson Hole

This report covers year 2 of a three year project, 1995-1997 inclusive, to instigate a permanent program of monitoring landbird species composition and densities in a variety of representative habitats within Grand Teton National Park (GTNP). Habitats range from grassland and sagebrush on the valley floor of Jackson Hole (around 1900 m) through a range of scrub, woodland, and tall foothill forest vegetation types to montane sites of subalpine fir and tundra (ca. 3000 m). The monitoring program is intended to provide data on year-to-year fluctuations in breeding bird species and densities, and document longer-term changes (if any) in the local avifauna of resident and migratory species. The data base will document variability in size of breeding populations among years, local shifts in distribution and abundance over habitat types, and potentially form an information source on which management and conservation decisions might be based.

A more precise speciation and extinction rate estimator

Paleobiology ◽  
2015 ◽  
Vol 41 (4) ◽  
pp. 633-639 ◽  
Author(s):  
John Alroy
Keyword(s):  
Turnover Rate ◽  
Marine Invertebrate ◽  
Time Interval ◽  
Extinction Rate ◽  
Turnover Rates ◽  
Sample Sizes ◽  
Extinction Rates ◽  
Highly Correlated ◽  
The One

AbstractA new turnover rate metric is introduced that combines simplicity and precision. Like the related three-timer and gap-filler equations, it involves first identifying a cohort of taxa sampled in the time interval preceding the one of interest (call the intervalsi0andi1). Taxa sampled ini0andi1are two-timers (t2); those sampled ini0andi2but noti1are part-timers (p); and taxa sampled only in eitheri1,i2, ori3are newly notated here as eithers1,s2, ors3. The gap-filler extinction proportion can be reformulated as (s1−s3)/(t2+p). The method proposed here is to substitutes3with the second-highest of the three counts when the expected orderings1≥s2≥s3is violated. In simulation, this new estimator yields values that are highly correlated with those produced by the gap-filler equation but more precise. In particular, it rarely produces highly negative values even when sample sizes are quite small. It is mildly upwards biased when sampling is extremely poor and turnover rates are extremely low, but it is otherwise highly accurate. Examples of Phanerozoic extinction rates for four major marine invertebrate groups are given to illustrate the method’s improved precision. Based on the results, the procedure is recommended for general use.

Heinrich von Kleist and the Right to War

Romanticism ◽  
2018 ◽  
Vol 24 (3) ◽  
pp. 245-254
Author(s):  
Jan Mieszkowski
Keyword(s):  
Heinrich Von Kleist ◽  
The Right ◽  
Do So

This essay explores the conceptualization of warfare in Romanticism. The focus is on two plays by Heinrich von Kleist, Penthesilea and Prince Friedrich von Homburg. I begin by discussing Carl von Clausewitz's influential understanding of conflict and the problems that arise when he attempts to explain the interdependence of warring parties. I go on to argue that in Kleist's dramas war is a competition between different languages of authority. When no coherent paradigm of agency emerges from this contest, the right to wage war is revealed to be anything but a guarantee that one knows how to do so.

In the Labyrinth

2017 ◽  
Author(s):  
Andrew McNeillie
Keyword(s):  
The Right ◽  
First Time ◽  
Do So

It is now widely acknowledged, and far beyond Ireland, that Tim Robinson’s two volumes jointly known as Stones of Aran (‘Pilgrimage’ and ‘Labyrinth’) are modern classics, exemplary in every way of how to write about place and to do so with a formal, literary accomplishment that more than earns the right to nod at Ruskin’s own classic. In 2012, Robinson went back to Árainn, the largest of the three islands, for the first time in nearly ten years. He did so at the urging of Andrew McNeillie, with whom he spent two and a half days revisiting old haunts. This chapter makes account of the occasion and uses, in the process, a unique document provided by Robinson as an experiment in annotating his work. This prompts McNeillie to investigate some of his own annotations and footnotes to Aran.

scholarly journals A comparison of breeding bird populations inside and outside of European Badger Meles meles control areas

Bird Study ◽  
2021 ◽  
pp. 1-13
Author(s):  
Esther F. Kettel ◽  
Ivan Lakin ◽  
Matthew J. Heydon ◽  
Gavin M. Siriwardena
Keyword(s):  
Meles Meles ◽  
Breeding Bird ◽  
Bird Populations ◽  
European Badger

scholarly journals After Hajj: Muslim Pilgrims Refashioning Themselves

Religions ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 36
Author(s):  
Kholoud Al-Ajarma
Keyword(s):  
Social Contexts ◽  
Religious Behavior ◽  
Transformative Experience ◽  
The Everyday ◽  
Community Expectations ◽  
Religious Dimensions ◽  
Personal Level ◽  
The Right ◽  
Self Formation ◽  
Do So

The Muslim pilgrimage to Mecca (Hajj) is one of the five pillars of Islam and a duty which Muslims must perform—once in a lifetime—if they are physically and financially able to do so. In Morocco, from where thousands of pilgrims travel to Mecca every year, the Hajj often represents the culmination of years of preparation and planning, both spiritual and logistical. Pilgrims often describe their journey to Mecca as a transformative experience. Upon successfully completing the pilgrimage and returning home, pilgrims must negotiate their new status—and the expectations that come with it—within the mundane and complex reality of everyday life. There are many ambivalences and tensions to be dealt with, including managing the community expectations of piety and moral behavior. On a personal level, pilgrims struggle between staying on the right path, faithful to their pilgrimage experience, and straying from that path as a result of human imperfection and the inability to sustain the ideals inspired by pilgrimage. By ethnographically studying the everyday lives of Moroccans after their return from Mecca, this article seeks to answer the questions: how do pilgrims encounter a variety of competing expectations and demands following their pilgrimage and how are their efforts received by members of their community? How do they shape their social and religious behavior as returned pilgrims? How do they deal with the tensions between the ideals of Hajj and the realities of daily life? In short, this article scrutinizes the religious, social and personal ramifications for pilgrims after the completion of Hajj and return to their community. My research illustrates that pilgrimage contributes to a process of self-formation among pilgrims, with religious and non-religious dimensions, which continues long after Hajj is over and which operates within, and interacts with, specific social contexts.

scholarly journals Malarial parasites as geographical markers in migratory birds?

2006 ◽  
Vol 2 (2) ◽  
pp. 213-216 ◽  
Author(s):  
Sylvia M Fallon ◽  
Robert C Fleischer ◽  
Gary R Graves
Keyword(s):  
North America ◽  
Migratory Birds ◽  
Wide Distribution ◽  
Specific Information ◽  
Population Movements ◽  
Site Specific ◽  
Dendroica Caerulescens ◽  
Bird Populations ◽  
Breeding Populations ◽  
Wintering Range

We tested the hypothesis that malarial parasites ( Plasmodium and Haemoproteus ) of black-throated blue warblers ( Dendroica caerulescens ) provide sufficient geographical signal to track population movements between the warbler's breeding and wintering habitats in North America. Our results from 1083 warblers sampled across the species' breeding range indicate that parasite lineages are geographically widespread and do not provide site-specific information. The wide distribution of malarial parasites probably reflects postnatal dispersal of their hosts as well as mixing of breeding populations on the wintering range. When compared to geographically structured parasites of sedentary Caribbean songbirds, patterns of malarial infections in black-throated blue warblers suggest that host–malaria dynamics of migratory and sedentary bird populations may be subject to contrasting selection pressures.

scholarly journals Avian Haemosporidian Diversity on Sardinia: A First General Assessment for the Insular Mediterranean

Diversity ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 75
Author(s):  
Irene Pellegrino ◽  
Luca Ilahiane ◽  
Giovanni Boano ◽  
Marco Cucco ◽  
Marco Pavia ◽  
...  
Keyword(s):  
Linear Models ◽  
Parasite Community ◽  
Breeding Birds ◽  
Lower Probability ◽  
Long Distance ◽  
Breeding Bird ◽  
Bird Populations ◽  
Total Prevalence ◽  
Western Palearctic ◽  
Host Parasite

The Western Palearctic is one of the most investigated regions for avian haemosporidian parasites (Haemoproteus, Plasmodium and Leucocytozoon), yet geographic gaps in our regional knowledge remain. Here, we report the first haemosporidian screening of the breeding birds from Sardinia (the second-largest Mediterranean Island and a biodiversity hotspot), and the first for the insular Mediterranean in general. We examined the occurrence of haemosporidians by amplifying their mtDNA cytb gene in 217 breeding birds, belonging to 32 species. The total prevalence of infected birds was 55.3%, and of the 116 haplotypes recovered, 84 were novel. Despite the high number of novel lineages, phylogenetic analysis did not highlight Sardinia-specific clades; instead, some Sardinian lineages were more closely related to lineages previously recovered from continental Europe. Host-parasite network analysis indicated a specialized host-parasite community. Binomial generalized linear models (GLMs), performed at the community level, suggested an elevational effect on haemosporidian occurrence probability (negative for Haemoproteus; positive for Leucocytozoon) likely due to differences in the abundance of insect vectors at different elevations. Furthermore, a GLM revealed that sedentary birds showed a higher probability of being infected by novel haplotypes and long-distance migrants showed a lower probability of novel haplotype infection. We hypothesize that the high diversity of haemosporidians is linked to the isolation of breeding bird populations on Sardinia. This study adds to the growing knowledge on haemosporidians lineage diversity and distribution in insular environments and presents new insights on potential host-parasite associations.

The Historian’s Role, Public History, and the National Truth Commission in Brazil

2020 ◽  
Vol 3 (2) ◽  
Author(s):  
Samantha Viz Quadrat
Keyword(s):  
Public History ◽  
Truth Commission ◽  
Final Report ◽  
Military Dictatorship ◽  
Brazilian Government ◽  
The Right ◽  
The Military ◽  
The Relationship ◽  
National Reconciliation ◽  
Do So

AbstractIn 2011, twenty-six years after the end of the military dictatorship, the Brazilian government took the initiative of implementing the right to memory and to the truth, as well as promoting national reconciliation. A National Truth Commission was created aiming at examining and shedding light on serious human rights violations practiced by government agents from 1946 to 1985. It worked across the entire national territory for almost three years and established partnerships with governments of other countries in order to investigate and expose the international networks created by dictatorships for monitoring and persecuting political opponents across borders. This article analyzes the relationship between historians and the National Truth Commission in Brazil, in addition to the construction of dictatorship public history in the country. In order to do so, the Commission’s relationship with the national community of historians, the works carried out, as well as historians’ reactions towards its works, from its creation until its final report in 2014, will be examined.

Judicial Resolution of Issues Related to the Movement of Underages Without Accompanying Parents

2020 ◽  
Vol 1 ◽  
pp. 32-36
Author(s):  
I. V. Botantsov ◽  
Keyword(s):  
Russian Federation ◽  
Freedom Of Movement ◽  
Independent Travel ◽  
The Russian Federation ◽  
The Right ◽  
Do So

According to the Constitution of the Russian Federation, every citizen has the right to freedom of movement on its territory, but due to the fact that minors cannot be held accountable for their actions, there is a need to control their movement by legal representatives. The practical determination of the age of independent travel of minors and the issues of drawing up documents by parents authorizing them to do so are the subjects of disputes that are subject to judicial resolution. The article provides an analysis of the relevant practice, accompanied by the author's comments.

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