Freitag, 30 Oktober 2020 08:47

YANG H., XIE B., ZHAO, G .et al. (2020).

Elusive cats in our backyards: persistence of the North Chinese leopard (Panthera pardus japonensis) in a human-dominated landscape in central China.

Integrative Zoology 00: 1–17.
https://www.researchgate.net/publication/343802258_Elusive_cats_in_our_backyards_persistence_of_the_North_Chinese_leopard_Panthera_pardus_japonensis_in_a_human-dominated_landscape_in_central_China

Abstract:


The North Chinese leopard (Panthera pardus japonensis), the least‐known big cat, disappeared in most historical range for decades, following the development of modern civilization. Unfortunately, we have scarce knowledge about the status of this big cat so far, apart from anecdotal reports. In this study, we investigated density, distribution and habitat use of leopard, the apex predator, in a complex forest landscape in the Loess Plateau. We used a camera‐trapping network to obtain population estimates for leopards over two years through spatially explicit capture‐recapture models (SECR). Our results, based on maximum likelihood and Bayesian / MCMC methods, reveal that the largest wild population of the leopard was found widely distributed in remnant forests in central Loess plateau. The population is increasing in our study area, and the density of leopards (1.70 (SE = 0.48)‐2.40 (SE = 0.67) / 100 km²) is higher than other areas of China. According to the analysis of two seasonal occupancy models, prey species drive partially the leopard habitat use, predicting that the big cat thrives from the recovery of prey community*. However, human disturbances, especially oil wells, seems to have negative impacts on the habitat use of leopards. Specifically, it is necessary to joint efforts by the government and researchers to improve human disturbances management and prey species population density, as well as strengthen the investment in research on the North China Leopard, which could all further strengthen protection ability and ensure the long‐term survival of this species.

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*The leopard prey species include the Siberian roe deer (Capreolus pygargus), the wild boar (Sus scrofa), as well as some small mammals such as the Asian badger (Meles leucurus) and the Tolai hare (Lepus tolai).

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Zustand der Vogelwelt in der Schweiz 2019.

online: URL: www.vogelwarte.ch/zustand. Print: 36 Seiten, ISSN 2297-5632. Schweizerische Vogelwarte, Sempach.

In der Publikation «Zustand der Vogelwelt in der Schweiz» fasst die Vogelwarte jährlich die neuesten Erkenntnisse aus ihren Überwachungsprojekten zusammen, an denen über 2000 freiwillige Mitarbeiterinnen und Mitarbeitern in allen Landesregionen beteiligt sind. Im Bericht 2020 liegt der Schwerpunkt auf den Bestandsentwicklungen einzelner Brutvogelarten, z.B. von Kulturlandarten, Eulen und Rabenvögeln. Auch wird die Entwicklung von eher seltenen Durchzüglern wie dem Kranich und von Wintergästen wie dem Rotmilan und der Lachmöwe dargestellt.

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Freitag, 12 Juni 2020 08:28

ANGST, C. & WEINBERGER, I. (2020)

Status of the Eurasian otter (Lutra lutra) in Switzerland.

Journal of Mountain Ecology, 13 (2020): 23–30.

Abstract:

Between the late 19th and early 20th century, the Eurasian otter had been persecuted in Switzerland as a nuisance animal. Federal funding was provided in order to eradicate the species. Additionally, habitat alterations and environmental pollutants played an important role in the decline of the species throughout the 20th century. The last signs of otter pres-ence  were  found  in  1989,  after  which  Switzerland  was  devoid  of  wild  otters  until  2009 when an otter was detected by an automatic camera in a fish pass. Since then, several indi-viduals have been observed in different regions of Switzerland. In two areas, otters have already  reproduced  successfully.  The  federal  office  for  nature  protection  has  launched  a national  working  group  to  coordinate  ongoing  initiatives  concerning  otters  between different stakeholders.

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Zustand der Vogelwelt in der Schweiz 2019.

online: URL: www.vogelwarte.ch/zustand. Print: 36 Seiten, ISSN 2297-5632. Schweizerische Vogelwarte, Sempach.

In der Publikation «Zustand der Vogelwelt in der Schweiz» fasst die Vogelwarte jährlich die neuesten Erkenntnisse aus ihren Überwachungsprojekten zusammen, an denen über 2000 freiwillige Mitarbeiterinnen und Mitarbeitern in allen Landesregionen beteiligt sind. Im Bericht 2019 liegt der Schwerpunkt beim 20-jährigen Jubiläum des «Monitorings Häufige Brutvögel» (MHB). Dank dem MHB ist die Bestandsentwicklung von häufigen und weit verbreiteten Brutvogelarten seit 1999 genau dokumentiert.

knaus-biblio

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Samstag, 17 November 2018 16:09

DMOCH, R. (1997)

Husbandry, breeding and population development of the Sri Lankan Rusty‐spotted cat Prionailurus rubiginosus phillipsi.

International Zoo Yearb. Volume 35: 115-120.


Abstract:

In September 1975 Frankfurt Zoo received 1.1 7 week‐old Rusty‐spotted cats Prionailurus rubiginosus phillipsi from Sri Lanka. As at 31 December 1995 16.19 animals, all descended from this pair, were listed in the international studbook at eight collections (Dmoch, 1996). Between 1976 and 1994 77 Rusty‐spotted cats were born in captivity and breeding data reveal that: sexual maturity is reached within the first year; mean litter size is 1–3 (n= 58); mean time of first mating is 7–8 days after introduction (n= 78); mean mating activity period is 5–7 days (n= 49); gestation period is between 67 and 71 days (mean 69 days, n= 22). Breeding ceased in 1989 at Frankfurt Zoo and in 1991 at Cincinnati, which could indicate an inbreeding depression. This paper describes the diet, growth and development, veterinary care, husbandry and behaviour of the species.

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Freitag, 24 August 2018 07:31

RÜHLE, A. (2015)

Das Wildkaninchen im Südwesten Deutschlands.

Teil I: Mitt. BAG Kleinsäuger, Heft 2/2015:  25-30.

Teil II: Mitt. BAG Kleinsäuger, Heft 3/2015:  6-10.

Zusammenfassung:

Bis in die erste Hälfte des 19. Jahrhundert war das Europäische Wildkaninchen (Oryctolagus cuniculus [LINNAEUS, 1758]) in Deutschland weit verbreitet und kam im großer Zahl vort. Heute ist es vor allem aufgrund der Myxomatose nur noch in der Mitte und dem Norden Deutschlands häufiger anzutreffen, während es im Süden nur vereinzelt kleine Populationen gibt. ANDREAS RÜHLE beobachtet seit einigen Jahren Wildkaninchen. Das bietet die möglichkeiet, Vergleiche zur eigenen Freilandhaltung von Hauskaninchen bei weitgehend arttypischer Ernährung anzustellen.

 

rühle-biblio

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African Elephant Status Report 2016 - An update from the African Elephant Database.

Occasional Paper of the IUCN Species Survival Commission No. 60
IUCN, Gland, Switzerland.
vi + 309pp.; ISBN13: 978-2-8317-1813-2.

Aus dem Executive Summary:

This is the fifth printed African Elephant Status Report (AESR) produced by the African Elephant Specialist Group (AfESG) of the IUCN Species Survival Commission (SSC). Like its predecessors, the AESR 2016 is based on data from the African Elephant Database (AED), the most comprehensive database on the status of any species of mammal in the wild. This is the first comparison of continental populations between 2006 and 2015 across the 37 range states of the African elephant. Importantly  this  report  not  only  provides  information  on  changes  in  elephant  numbers  but  also, because it is spatial, shows where these changes have taken place.

Volltext: https://portals.iucn.org/library/sites/library/files/documents/SSC-OP-060_A.pdf

 

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Ermittlung der Biomassen flugaktiver Insekten im Naturschutzgebiet Orbroicher Bruch mit Malaise Fallen in den Jahren 1989 und 2013.

Mitteilungen aus dem Entomologischen Verein Krefeld 1 (2013): 1-5. ISSN 1865-9365.

Zusammenfassung:

Beschrieben werden die Biomassen aus den Ergebnissen von Kartierungen mit Malaise Fallen im Naturschutzgebiet Orbroich, Krefeld. Die Ergebnisse zeigen an zwei Standorten einen hohen Verlust in der vergleichenden Betrachtung der Masse flugaktiver Insekten zwischen den
Untersuchungsjahren 1989 und 2013. Über die gleiche Fallentechnik an denselben Standorten wurden  jeweils  gravierende  Rückgänge  von > 75%  belegt.  Diese  Daten  deuten  darauf  hin, dass im Gebiet an den untersuchten Teilflächen nur noch weniger als ein Viertel der Masse flugaktiver Insekten in der lokalen Zönose verfügbar ist

Volltext

 

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Donnerstag, 18 Januar 2018 14:44

MESSI, J., KEKEUNOU, S. & WEISE, S. (2006)

Abundance and life cycle of Zonocerus variegatus (Orthoptera: Pyrgomorphidae) in the humid forest zone of southern Cameroon.

Entomological Science, 9: 23–30. doi:10.1111/j.1479-8298.2006.00150.x

Abstract:

Weekly captures from January 2000 to January 2002 enabled us to study the abundance and life cycle of the variegated grasshopper, Zonocerus variegatus (Orthoptera: Pyrgomorphidae), in the humid forest zone of Southern Cameroon. We found that Z. variegatus was present throughout the year in the forest reserve and the human-influenced zones of Yaounde and Mbalmayo in two univoltine populations, which had unequal abundance and durations. The separation of the two populations was clearer in the Yaounde and Mbalmayo developed zones than in the Mbalmayo forest reserve (undeveloped zone). The abundance of Z. variegatus varied according to the post-embryonic stage, sex, year and season. Hatching and coupling took place during the dry and rainy seasons, whereas oviposition occurred only in the rainy season. In Cameroon, the type of life cycle of Z. variegatus observed in the humid forest zone of the south is different from that of the “Sudanian and Sahelian” zones.

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Donnerstag, 14 Juni 2018 08:07

CHAPMAN, J. A. & FLUX, J. E. C. (1990)

Rabbits, Hares and Pikas : Status Survey and Conservation Action Plan. 

168 Seiten, zahlreiche s/w-Fotos und Landkarten.
IUCN, Gland.ISBN 2-8317-0019-1.

Aus dem Vorwort:

The   Lagomorph   Specialist   Group   reviewed   for   the   first time  the  status  of  the  worlds’  lagomorphs,  critically  examined those  species  which  appeared  to  require  attention,  and  listed important  decisions  for  future  conservation  action  concerning the volcano rabbit Romerolagus  diazi (Mexico), riverine rabbit Bunolagus monticularis (South  Africa),  hispid  hare  Caprolagus hispidus (India and Nepal), Sumatran rabbit Nesolagus netscheri   (Indonesia)  and  Amami  rabbit Pentalagus furnessi (Japan).

Emphasis  was  placed  on  the  need  for  a  comprehensive    review  of  hares  and  for  the  development  of  programs  for monitoring   lagomorphs   and   their   habitat   wherever   required. The  need  to  bring  these  matters  to  the  attention  of  Governments  was  given  high  priority.  Project  proposals  resulting  from these  deliberations  were  submitted  to  the  Commission  for inclusion  in  the  IUCN  Conservation  Programme  for  Sustainable   Development.

The Lagomorph Group, building on its good start, soon assumed responsibility for providing the information necessary for preparing and updating lagomorph entries in the Red Data Book and for submissions to the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). It holds a strong position against the introduction of the eastern cottontail to Europe, and has willingly participated in discussions on the subject when requested.

The Group also continues to take the lead in keeping lagomorphs on conference agenda at international meetings, and has widened its in recent years to look at the status of some of the lesser known races or subspecies of the more common lagomorphs. Lagomorphs are relatively small mammals and do not excite the curiosity and appeal of some of their larger kind.

There has thus never been much financial support for conservation. But they are of critical importance in world ecosystems and I applaud the action taken by the Species Survival Commission in setting up this Group when it did. I am particularly pleased that IUCN has agreed to fund this publication of the Lagomorph Specialist Group Action Plan. The achievement of main objectives depends to a large extent on the continued activities of small teams of dedicated people like those who constitute this Group; the publication will give them an opportunity to say what they are trying to do.

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