Co-author Irina Rotenko
In our large experience and large dataset on wolf reproduction in Belarus (e.g., Sidorovich and Rotenko, 2019), there is much evidence that the widely spread idea of monogamous wolves is mainly wrong.
Continue reading “How wolves break the idea of the species monogamy”Co-author Irina Rotenko
Multi-breeding in a wolf pack is one of the enigmatic questions of the grey wolf reproduction. When we began to investigate the wolf reproduction in Belarus (mainly in Naliboki Forest and Paazierre Forest) in details, we found the phenomenon of a pack multi-breeding.
Continue reading “Multi-breeding in a wolf pack. Nowadays it is commoner than breeding of a pair in Naliboki Forest”Co-author Irina Rotenko
In this post we address to a newly registered trend in breeding of wolves in Belarus, in particular relating to the earlier giving birth in wolves in Naliboki Forest, the central-western Belarus and in the whole country.
Continue reading “Too early giving birth in wolves got common in Naliboki Forest”Co-author Irina Rotenko
In the book on the grey wolf reproduction biology (Sidorovich & Rotenko, 2019) we told about several patterns of wolf pack multi-breeding, which we documented in Naliboki Forest and Paazierre Forest in Belarus during the last two decades. The main distinctive feature in wolf pack multi-breeding is how many big adult males, which perhaps equally ranked, take part in a breeding group of wolves. If a male leads a breeding group, normally it is only a strong male in the breeding group. Such a group of breeders may include two or three breeding females.
Continue reading “Double breeding in the model wolf pack during the spring of 2022 with implication for a pattern of a pack multi-breeding”Co-author Irina Rotenko
Since May 2021 in the protected area of Naliboki Forest consisting slightly more than one thousand square kilometres we traced six wolf litters. Altogether there were 35-40 wolf pups. In the mid-July there were registered 15 pups (2, 8 and 5). In September only one breeder group saved 4 pups. These breeder group consisted of mother, father and another adult female, which was like a pup-sitter. Till December they lost 3 more pups. In the beginning of January 2022 merely one pup walked with the three adult wolves there. That pup was the only single one in the the protected area of Naliboki Forest and the whole Naliboki Forest in the beginning of 2022.
Continue reading “Again very high mortality in wolf pups in Naliboki Forest in 2021: only one pup survived from 6 litters”Co-authors: Irina Rotenko and Gerard Oonk
In the last year after our study on denning in wolves in May 2020 we have already reported about the peculiar situation in denning by wolves in Naliboki Forest, the central-western Belarus. Wolf breeders stopped denning on open coaches as it used to be, and they began denning in burrows exclusively, when mammals (red deer, bison, elk, lynx, brown bear), which are characterized by aggressive behaviour to pups, got plenty altogether in this forested terrain.
In May 2021 we discovered four active wolf dens and traced the denning behaviour of two wolf breeding groups having two and three breeding females (both cases of a multi-breeding in a wolf pack). All the five breeding female wolves kept pups in burrows only. Altogether we found 33 wolf burrow-dens that were used for denning: 7 self-made by wolves and 26 enlarged badger-setts and outliers. Interestingly, that 11 out of 26 badger burrows were wolf burrow-dens before (2-7 years ago). No any wolf couch-dens were found in May 2021, while before such a situation that is inimical for wolf denning they denned on open couches and pits.
See the video below for the details of denning in wolves in Naliboki Forest during May 2021.
Coauthor Irina Rotenko
In 2020 we published series of posts (1); (2); (3); (4); (5) about triple-breeding pack of wolves, which consisted of three semi-independent breeding couples. This breeding group and the whole pack was led by one of the breeding females that we call Torn Ear. She was easily recognisable on photos due to really torn right ear.
Coauthor Irina Rotenko
Since the last May we began using video mode in our camera-traps more often in order to create a scientific film about reproduction in wolves in few years. The video sequence you see below is a kind of a report on the video results we gained across breeding of wolves in Naliboki Forest in 2020. In this video you see some interesting moments demonstrating various behaviour of wolf pups and parents during this secretive period.
You can support the research on large carnivores in Naliboki Forest by buying just a coffee. It will help to keep the study going.
Coauthor Irina Rotenko
From the post about the outstanding reproductive behaviour of one model wolf pack that is leading by quite old experienced female that we call as Torn Ear, perhaps, you already got to know that during this warm season i.e. in May-July 2020 we traced a very interesting breeding situation in this wolf group.
Continue reading “Unique parent cooperation in multibreeding situation of wolf pack”Coauthor Irina Rotenko
In our previous studies we registered usage of badger setts by mother lynx with small kittens in June-August (mainly by track registrations), as well as much interest of pregnant female lynxes to badger setts (by camera trapping). We supposed that badger sett is a quite common den of the Eurasian lynx. Nevertheless, a good documentation of using badger sett by lynx mother with small kittens was absent in our materials. We had some photos of that behaviour only.
Continue reading “Documentation of using badger sett by lynx mother with small kittens”
Zoology by Vadim Sidorovich 