scholarly journals Population Trends of a Mixed-Species Colony of Humboldt and Magellanic Penguins in Southern Chile after Establishing a Protected Area

2013 ◽  
Vol 8 (2) ◽  
Author(s):  
Ronnie Reyes-Arriagada ◽  
Luciano Hiriart-Bertrand ◽  
Victoria Riquelme ◽  
Alejandro Simeone ◽  
Klemens Pütz ◽  
...  
2016 ◽  
Vol 24 (2) ◽  
pp. 1-17
Author(s):  
István Szentirmai ◽  
Sándor András Boldogh ◽  
Károly Nagy ◽  
Béla Habarics ◽  
Tibor Szép

Abstract The Corncrake is a strictly protected species in Hungary and a qualifying species of many Natura 2000 sites. Despite its Least concern global conservation status, it receives much attention and was elected as “Bird of the Year” by MME BirdLife Hungary in 2016. In this paper, we estimate its population trends and analyse the suitability of the protected area system and agri-environment schemes for the species. We compiled information on major threatening factors and conservation measures applied for the species. We reviewed international publications on the ecology and conservation management of the species to extract information for practical conservation. We estimated that 500–2000 pairs of Corncrakes breed in Hungary. Although their breeding sites are well covered by protected areas, Natura 2000 sites (42%) and High Nature Value Areas (67%), their population has declined by 55% over the last 20 years. We found that most of the major threatening factors are addressed by conservation management, and appropriate measures are applied in most cases. Recent research findings and recommendations by the BirdLife International Corncrake Conservation Team suggest that mowing of grasslands around nesting places should be delayed until 1–15 August either in the entire field or at least on 2 hectares around nests. Prescriptions of agri-environment schemes should also be adjusted to the above requirements and more farmers should be encouraged to enrol in Corncrake conservation programmes. We strongly suggest that more emphasis should be devoted to combat important threats for the most important breeding sites such as aridification and flooding.


1998 ◽  
Vol 21 (3) ◽  
pp. 418 ◽  
Author(s):  
Alejandro Simeone ◽  
Roberto P. Schlatter
Keyword(s):  

2019 ◽  
Vol 35 (4) ◽  
pp. 1212-1231 ◽  
Author(s):  
Cole C. Monnahan ◽  
Jorge Acevedo ◽  
A. Noble Hendrix ◽  
Scott Gende ◽  
Anelio Aguayo‐Lobo ◽  
...  

The Condor ◽  
2009 ◽  
Vol 111 (3) ◽  
pp. 544-550 ◽  
Author(s):  
Alejandro Simeone ◽  
Luciano Hiriart-Bertrand ◽  
Ronnie Reyes-Arriagada ◽  
Micah Halpern ◽  
Jean Dubach ◽  
...  

2009 ◽  
Vol 129 (5) ◽  
pp. 935-946 ◽  
Author(s):  
Patrick Hildebrandt ◽  
Philipp Kirchlechner ◽  
Andreas Hahn ◽  
Thomas Knoke ◽  
Rodrigo Mujica H.

2018 ◽  
Vol 29 (2) ◽  
pp. 308-320 ◽  
Author(s):  
FABIÁN CASAS ◽  
FRANÇOIS MOUGEOT ◽  
BEATRIZ ARROYO ◽  
MANUEL B. MORALES ◽  
ISRAEL HERVÁS ◽  
...  

SummaryIn conservation biology, population monitoring is a critical step, particularly for endangered groups, such as steppe birds in European agro-ecosystems. Long-term population monitoring allows for determination of species population trends and also provides insights into the relative roles that environmental variability and human activities have on priority species. Here, we compare the population trends of two sympatric, closely related farmland bird species, the Little Bustard Tetrax tetrax and Great Bustard Otis tarda, in a protected area of Central Spain, which is their main stronghold in Europe. Over 12 years of monitoring, the abundance of Little and Great Bustards shifted in opposite directions in our study area. Little Bustard abundance decreased significantly (both males [-56%], and harder-to-detect females [-55%]), while Great Bustard abundance increased significantly (1,800%). Future surveys should be more precise and frequent for Little Bustards to facilitate evaluation of their population status and trends. We recommend annual surveys in 2–3 important locations by region throughout the breeding range for Little Bustards, while for Great Bustard the current regional monitoring programmes would be sufficient.


PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7610 ◽  
Author(s):  
Sebastián Rosenfeld ◽  
Fabio Mendez ◽  
Martha S. Calderon ◽  
Francisco Bahamonde ◽  
Juan Pablo Rodríguez ◽  
...  

The Katalalixar National Reserve (KNR) lies in an isolated marine protected area of Magellan Sub-Antarctic channels, which represent an important area for marine biodiversity and macroalgal conservation. The present study is the first report of the species Lessonia spicata, “huiro negro”, in the Magellan Sub-Antarctic channels. This finding has implications for macroalgal biogeography and conservation concerns in the Chilean coast. In the ecological assessments of the KNR in 2018 we found populations of L. spicata, specifically on rocky shores of Torpedo Island and Castillo Channel. The morphological identification and molecular phylogeny based on nuclear (ITS1) sequences revealed that these populations of Lessonia are within the lineage of L. spicata of central Chile. This report increases the species richness of kelps for the Magellan Sub-Antarctic Channels from two to three confirmed species (L. flavicans, L. searlesiana and L. spicata), and it also extends the southern distribution range of L. spicata. This species has high harvest demand and is moving towards southern Chile; thus, these populations should be considered as essential for macroalgal conservation in high latitudes of South America.


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