Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | Springer Nature Link |
|---|---|
| Author | Bertouille, S. B. Crombrugghe, S. A. |
| Copyright Year | 2002 |
| Abstract | We examined variation in fertility rates of red deer (Cervus elaphus) in five areas that cover a range of habitats in Belgium: Hautes Fagnes (3), middle of Ardenne (1) and Famenne (1).In all areas, the majority of females ovulated for the first time as yearlings. The fertility rate (percentage of females ovulating) of yearlings varied from 0.48 to 0.91 between areas. The proportion of ovulating females 2-to-7-year-old exceeded 0.99 in all areas. The fertility rate decreased from 0.94 to 0.86 in 8-to-11-year-old females and fell to 0.50 in 12-year olds.We developed logistic model to assess how age, body mass, mandible length, and area were linked to fertility in different age-classes.In yearlings, mandible length, body mass and area variations were all significandy related to fertility when fitted individually. However, body mass explained the best the variation in fertility.In the 1-to-7-year-old females, mandible length, body mass, age, and area variations were all significant when fitted individually to fertility. Mandible length was the most significant variable, but adding body mass in the model improved the fit significantly.Although we observed significant between-area variations in fertility rate of yearlings, adding area in the logistic model did not improve the fits. This suggests that the fertility-mass relationship is the same between the five areas and that variation in fertility between areas reflects essentially between-area variations in mandible length and body mass.Wir untersuchten die Variation der Fruchtbarkeitsraten der Rothirsche (Cervus elaphus) in fünf Gebieten die sich in Belgien über eine Reihe von Lebensräumen erstrecken (Hautes Fagnes (3), Zentral Ardennen (1), und Famenne (1). In allen Gebieten hatten die meisten Weibchen als Jährlinge den ersten Eisprung. Die Fruchtbarkeitsrate (Prozent der Weibchen mit Eisprung) der Jährlinge schwankte von 0,48 bis 0,91 zwischen den verschiedenen Gebieten. Der Anteil der 2–7 jährige Weibchen mit Eisprung übertraf 0,99 in allen Gebieten. Die Fruchtbarkeitsrate nahm ab von 0,94 auf 0,86 bei den 8–11 jährigen Weibchen und fiel bis auf 0,50 bei den 12 jährigen Weibchen.Wir entwickelten ein logistisches Model um die Einflüsse von Alter, Körpermasse, Unterkieferlänge, und Gebiet auf die Fruchtbarkeitstate der verschiedenen Altersklassen zu ermitteln.Bei Jährlinge waren Unterschiede im Gebiet, in Unterkieferlänge und Körpermasse signifikant mit der Fruchtbarkeitsrate verbunden wenn jedes einzelner Faktor angepasst wurde. Die Körpermasse war aber der Hauptfaktor in der Erklärung der Variation der Fruchtbarkeitsrate. Bei den 1–7 jährigen Weibchen waren Variationen der Unterkieferlänge, Körpermasse und Gebiet alle signifikant wenn sie einzeln der Fruchtbarkeitsrate angepasst wurden. Der Faktor Unterkieferlänge war am meisten signifikant, aber zusammen mit dem Faktor Körpermasse passte er noch besser ins Modell. Obwohl wir signifikante Variationen der Fruchtbarkeitsrate der Jährlinge in verschiedenen Gebieten beobachten konnten, hat die Ergänzung des Faktors Gebiet zu dem logistischen Model die Passform nicht signifikant verbessert. Das weist darauf hin, dass die Relation Fruchtbarkeit — Körpermasse gleich ist zwischen den fünf Gebieten, und dass die Veränderung der Fruchtbarkeit zwischen den Gebieten hauptsächlich die Unterschiede in der Unterkieferlänge und der Körpermasse zwischen den Gebieten wiederspicgelt. |
| Starting Page | 87 |
| Ending Page | 98 |
| Page Count | 12 |
| File Format | |
| ISSN | 00442887 |
| Journal | European Journal of Wildlife Research |
| Volume Number | 48 |
| Issue Number | 1 |
| e-ISSN | 14390574 |
| Language | German |
| Publisher | Springer-Verlag |
| Publisher Date | 2002-01-01 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Alter Körpermasse Cervus elaphus Fruchtbarkeit Lebensraumqualität Unterkieferlänge Rothirsch Animal Ecology Zoology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology Animal Science and Zoology |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|