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Articles 31 - 60 of 515

Full-Text Articles in Other Animal Sciences

Der Kormoran Phalacrocorax Carbo In Der Mongolei, Michael Stubbe, Lucie Marie Baltz, Davaa Lchagvasuren, Lukas Kratzsch, Lara-Sophie Dey, Annegret Stubbe Jan 2021

Der Kormoran Phalacrocorax Carbo In Der Mongolei, Michael Stubbe, Lucie Marie Baltz, Davaa Lchagvasuren, Lukas Kratzsch, Lara-Sophie Dey, Annegret Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The Great Cormorant Phalacrocorax carbo is a wide spread breeding species in Mongolia with a progressive population trend. Observations of the Mongolian-German Biological Expeditions were analyzed and summarized with data from literature. About 1,500 young birds were ringed in 2016 and 2017. One important recovery was coming from the wintering area Mai Po Marshes Nature Reserve of Hong Kong. It is unclear if all Mongolian Cormorants are flying at the same route to their wintering region in South China. The main feeding fishes in Mongolia belong to endemic species of the genus Oreoleuciscus (Cyprinidae). Measurements of 113 eggs from Tolbo- …


Mist-Netting Of Forest-Dwelling Bats In The Lazovsky State Nature Reserve, Russian Far East, Kerstin Birlenbach Jan 2021

Mist-Netting Of Forest-Dwelling Bats In The Lazovsky State Nature Reserve, Russian Far East, Kerstin Birlenbach

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Many bat species depend on a high value of healthy and undisturbed forests with a high ratio of roost sites in old tree stands. This investigation focused on the diversity, distribution and reproduction status of bats within the area of Lazovsky State Nature Reserve. The importance of an area for bats can be measured by the ratio of reproduction. The most important and sensitive time in a bats yearly circle is the time of hibernation in winter and the reproduction time of females. From the beginning of July to the end of August 2007, in total 139 bats of eight …


Records Of Hippoboscidae From Mongolian Birds Of Prey With Checklist, Update, Matthias Jentzsch, Benjamin Meissner, Nayamsuren Batsaikhan, Annegret Stubbe, Michael Stubbe Jan 2021

Records Of Hippoboscidae From Mongolian Birds Of Prey With Checklist, Update, Matthias Jentzsch, Benjamin Meissner, Nayamsuren Batsaikhan, Annegret Stubbe, Michael Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The hippoboscid species Ornithophila gestroi has been rediscovered from Mongolia. It is the easternmost of all the known occurrences. Specimens were collected from Amur Falcon Falco amurensis, Saker Falcon Falco cherrug, Lesser Kestrel Falco naumanni, Eurasian Hobby, Falco subbuteo, Common Kestrel Falco tinnunculus Linnaeus, 1758 and Black Kite Milvus migrans in a breeding area located in southern Mongolia. Amur Falcon, Eurasian Hobby and Black Kite were identified as hosts of O. gestroi for the first time.


The Formation Of Aufeis And Its Impact On Infrastructure Around Ulaanbaatar, North-Central Mongolia, Michael Walther, Vanchindorj Batsaikhan, Avirmed Dashtseren, Yamkhin Jambaljav, Khurelbaatar Temujin, Ganbold Ulanbayar, Ulrich Kamp Jan 2021

The Formation Of Aufeis And Its Impact On Infrastructure Around Ulaanbaatar, North-Central Mongolia, Michael Walther, Vanchindorj Batsaikhan, Avirmed Dashtseren, Yamkhin Jambaljav, Khurelbaatar Temujin, Ganbold Ulanbayar, Ulrich Kamp

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In this study aufeis features and their formation under natural conditions and in an urban surrounding in north-central Mongolia were investigated. Used methods included field observations, Electrical Resistivity Tomography (ERT) as well as analyses of satellite imagery and meteorological data. Aufeis formation is related to streams, springs, and ground conditions, particularly soil moisture; the formation of both spring aufeis and river aufeis follows a seasonal cycle. The meteorological data from 1969 to 2018 indicate that the mean annual air temperature (MAAT) increased by 2.6 °C, whilst no significant changes were observed for precipitation. Between 1992 and 2018, aufeis areas significantly …


The House Mouse Mus Musculus In Mongolia: Taxonomy, Status, And Ecology Of A Neglected Species, Rico Appenborn, Katrin Lammers, Bettina Harr, Davaa Lkhagvasuren, Ravchig Samiya, Michael Stubbe, Hermann Ansorge Jan 2021

The House Mouse Mus Musculus In Mongolia: Taxonomy, Status, And Ecology Of A Neglected Species, Rico Appenborn, Katrin Lammers, Bettina Harr, Davaa Lkhagvasuren, Ravchig Samiya, Michael Stubbe, Hermann Ansorge

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Although the house mouse as a common and widely distributed species is probably best-studied among small mammals, there is a lack of fundamental knowledge regarding species identity, morphology and ecology in Mongolia. Consequently, this study provides results of basic biological research on the Mongolian house mouse. A total of 172 specimens have been studied based on samples collected during the period 1962 to 2016. Using genetic and morphological markers, the taxonomic examination resulted in classification as Mus musculus musculus LINNAEUS, 1758. To characterize the Mongolian house mouse, three fur color traits and 23 metric body and skull traits were analyzed. …


From The Steppe To The Desert: Survey Of Band-Winged Grasshoppers From Mongolia (Orthoptera: Acrididae: Oedipodinae) Based On Material From 50 Years Of Expeditions, Lara-Sophie Dey, Matthias Seidel, Davaa Lchagvasuren, Martin Husemann Jan 2021

From The Steppe To The Desert: Survey Of Band-Winged Grasshoppers From Mongolia (Orthoptera: Acrididae: Oedipodinae) Based On Material From 50 Years Of Expeditions, Lara-Sophie Dey, Matthias Seidel, Davaa Lchagvasuren, Martin Husemann

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The steppe regions of Mongolia have a rich grasshopper fauna. Especially, the short-horned (Caelifera) grasshopper family Acrididae with the subfamilies Gomphocerinae (slant-faced grasshoppers) and Oedipodinae (band-winged grasshoppers) show a high diversity and abundance. This study reviews the Mongolian fauna of band-winged grasshoppers based on collection data of 50 years of expeditions of the German-Mongolian research cooperation. These collection data (assembled between 1962 and 2019) were used to generate a faunistic overview of Oedipodinae species for the region. In total 740 specimens belonging to 16 species were reported. Based on the collected material, study of the types and the original species …


Erforschung Biologischer Ressourcen Der Mongolei, Band 14 = Exploration Into The Biological Resources Of Mongolia, Volume 14 [Front Matter] Jan 2021

Erforschung Biologischer Ressourcen Der Mongolei, Band 14 = Exploration Into The Biological Resources Of Mongolia, Volume 14 [Front Matter]

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Title page, verso of the title page, and table of contents for Erforschung biologischer Ressourcen der Mongolei, Band 14 = Exploration into the Biological Resources of Mongolia, Volume 14 (2021), also referred to as the Black Journal.

Herausgeber:

Annegret Stubbe (Halle/Saale)

Petra Kaczensky (Wien)

Karsten Wesche (Görlitz)

Ravčigijn Samjaa (Ulaanbaatar)

Michael Stubbe (Halle/Saale)

Richard P. Reading (Denver)

Scott L. Gardner (Lincoln)

Choima Dulamsuren (Freiburg)

Schriftleitung:

Annegret Stubbe Martin-Luther-Universität Halle Wittenberg, Halle (Saale) 2021


First Experience With A Camera Collar In A Free-Ranging Przewalski’S Horse Group In The Mongolian Gobi, Petra Kaczensky, Gankhuyag Gantulga, Davaa Lkhagvasuren, Bazartseren Boldgiv, Oyunsaikhan Ganbaatar, Nanjid Altansukh, Chris Walzer Jan 2021

First Experience With A Camera Collar In A Free-Ranging Przewalski’S Horse Group In The Mongolian Gobi, Petra Kaczensky, Gankhuyag Gantulga, Davaa Lkhagvasuren, Bazartseren Boldgiv, Oyunsaikhan Ganbaatar, Nanjid Altansukh, Chris Walzer

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Remote sensing and satellite telemetry have allowed to greatly expanding the understanding of how species use various landscapes, even in remote settings. However, remotely collecting data also harbors the risk of losing “touch with the ground.” We explore the possibility of the additional insight cameras integrated in GPS-satellite collars can provide for the behavior and ecology of free-ranging Przewalski’s horse in the remote Great Gobi B Strictly Protected Area in southeastern Mongolia. Over a 91-day period, the camera collected 1,080 images. 62% of the images showed Przewalski’s horses and provided insights into behavior and grouping patterns and can supplement indirect …


Beitrag Zur Säugetierfauna Der Ostmongolei, Davaa Lchagvasuren, Annegret Stubbe, Michael Stubbe, Hermann Ansorge, Dietrich Dolch Jan 2021

Beitrag Zur Säugetierfauna Der Ostmongolei, Davaa Lchagvasuren, Annegret Stubbe, Michael Stubbe, Hermann Ansorge, Dietrich Dolch

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Between 2008 and 2014, four Mongolian-German Biological Expeditions worked for short periods in East Mongolia. The results related to mammalian fauna were summarized. Investigation areas were parts of the Daurian steppe, Buir-nuur- and Nömrög-gol-region. Chiroptera were recorded with four species. Especially, Vespertilio sinensis has to be considered as a characteristic species of the eastern steppes. Aggregations of some thousand individuals were found in the Buir-nuur-region. The other three species were Plecotus ognevi, Myotis petax, and Myotis aurascens. It is to expect, that in eastern Mongolia some more Chiroptera-species will re-covered in future.

The degree of investigation of …


Professor Anudarijn Dašdorž (1918-1977): Eine Würdigung Zur Wiederkehr Seines 100. Geburtstages, Ravčigijn Samjaa, Michael Stubbe, Annegret Stubbe Jan 2021

Professor Anudarijn Dašdorž (1918-1977): Eine Würdigung Zur Wiederkehr Seines 100. Geburtstages, Ravčigijn Samjaa, Michael Stubbe, Annegret Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Der erste Hydrobiologe und Zoologe in der Mongolei, Prof. Dr. Anudarijn Dašdorž (auch engl. Dashdorj) wurde im Jahr 1918 im Somon Bayandun des Dornod Aimaks (Ost Aimak) geboren. Von 1929 bis1931 besuchte er die Grundschule in Bayandun. Um weiter zu lernen, ging er in die Hauptstadt Ulaanbaatar und besuchte in den Jahren 1931-1933 dort die Mittelschule. Ab 1933 studierte Dašdorž zwei Jahre lang am Pädagogischen Technikum in Ulaanbaatar. Im Jahr 1935 absolvierte er diese Ausbildung als Lehrer für die Naturwissenschaften. Danach begann Dašdorž seine Lehrtätigkeit im Bildungswesen. In den Jahren 1935-1939 arbeitete er als Lehrer und Schuldirektor in seinem Heimatort …


Zur Säugetierfauna Des Nationalparks Tavan Bogd (Westmongolei), Annegret Stubbe, Michael Stubbe, Davaa Lchagvasuren Jan 2021

Zur Säugetierfauna Des Nationalparks Tavan Bogd (Westmongolei), Annegret Stubbe, Michael Stubbe, Davaa Lchagvasuren

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The Mongolian-German Biological Expedition worked in 2014 from 31.07 until 05.08. in the West- Mongolian National Park Tavan Bogd with the lakes Choton-nuur, Churgan-nuur and Dajan-nuur. Within this very short time were recorded the Insectivora Sorex caecutiens and Sorex tundrensis. In addition, the Chiroptera Plecotus ognevi and Myotis petax were collected. A nursery roost of Myotis petax in a tree cave (Larix sibirica) was analyzed. From the genus Clethrionomys the species C. rutilus and C. rufocanus were caught. Two Microtus species, M. gregalis and M. oeconomus were collected. The reproductive state of all caught animals was determined. …


Beitrag Zur Avifauna Der Transaltaigobi/Mongolei Im Herbst 2017, Michael Stubbe, Annegret Stubbe, Ravčigijn Samjaa Jan 2021

Beitrag Zur Avifauna Der Transaltaigobi/Mongolei Im Herbst 2017, Michael Stubbe, Annegret Stubbe, Ravčigijn Samjaa

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Migration data for Mongolian bird species are relative rare in the literature. Here are summarized observations of a travel in the Transaltaigobi 25.09.–12.10.2017. There are data for 56 species, 26 Nonpasseriformes and 30 Passeriformes. Main visited localities were for few days the oasis Echijn-gol and the mountain areas of Cagaan Bogd and Tost-uul. For some species are given the latest autumn observations.


Soricidenfunde (Mammalia: Insectivora) In Der Mongolei, Michael Stubbe, Davaa Lchagvasuren, Hermann Ansorge, Ravčigijn Samjaa, Dietrich Dolch, Nayamsuren Batsajchan, Margit Hanelt, Annegret Stubbe Jan 2021

Soricidenfunde (Mammalia: Insectivora) In Der Mongolei, Michael Stubbe, Davaa Lchagvasuren, Hermann Ansorge, Ravčigijn Samjaa, Dietrich Dolch, Nayamsuren Batsajchan, Margit Hanelt, Annegret Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

New data on the Mongolian fauna of Soricidae came in the last decades from Russian scientists, such as Ju. G. Švecov, N. I. Litvinov, and B. I. Sheftel, last not least, in cooperation with Mongolian mammalogists. We remind the reader about the publications of N. Chotochu, D. Bazardorž, and R. Samjaa with his team. Also in future, there is a lot to do for understanding the biology, ecology, and distribution of the Mongolian shrews. We have summarized the most important publications on shrews and made a grid mapping together with the results of the Mongolian-German Biological Expeditions. Up to now, …


Centipedes And Millipedes (Chilopoda, Diplopoda) Of The Khentey Mountain Range, Northern Mongolia, Ansgar Poloczek, Martin Pfeiffer, Pavel S. Nefediev Jan 2021

Centipedes And Millipedes (Chilopoda, Diplopoda) Of The Khentey Mountain Range, Northern Mongolia, Ansgar Poloczek, Martin Pfeiffer, Pavel S. Nefediev

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

We sampled 99 plots in three locations in the West, South and East Khentey, each consisted of both pitfall traps and soil and litter sampling. We were able to establish the occurrence of ten species of Chilopoda from three genera, three families and three orders and three species of Diplopoda also from three genera, three families and three orders in the Khentey Mountain region. Among the Chilopoda were found eight Lithobiomorpha: Lithobius (Ezembius) giganteus, L. (E.) sibiricus, L. (E.) ostiacorum, L. (E.) rapax, L. …


In Memoriam Prof. H.C. Dr. Mathias Kiefer † (1943 – 2019), Michael Stubbe, Annegret Stubbe Jan 2021

In Memoriam Prof. H.C. Dr. Mathias Kiefer † (1943 – 2019), Michael Stubbe, Annegret Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Am 15.06.2019 vollendete sich nach langer schwerer Krankheit der Lebenszyklus von Mathias Kiefer. Seiner Frau und seinem Sohn Daniel sind wir für wertvolle Daten aus der Vita des Verstorbenen zu großem Dank verbunden. Mathias Kiefer wurde am 25. März 1943 im slowakischen Kežmarok geboren, wo er auch seine Schulausbildung erhielt. Von 1961 bis 1966 erfolgte an der Naturwissenschaftlichen Fakultät der Comenius-Universität von Bratislava sein Biologiestudium, das er mit dem Diplom (Fachrichtung Parasitologie) abschloss.


Peter Hanelt: Ein Großer Wissenschaftler Und Mensch Ist Von Uns Gegangen, Ingo Schubert, Klaus Pistrick Jan 2021

Peter Hanelt: Ein Großer Wissenschaftler Und Mensch Ist Von Uns Gegangen, Ingo Schubert, Klaus Pistrick

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Am 21. Oktober 2019 vollendete sich nach längerer Krankheit das Leben von Dr. habil. Peter Hanelt. Peter Hanelt wurde am 5. Dezember 1930 im niederschlesischen Görlitz als einziges Kind des Kaufmanns Fritz Hanelt und seiner Ehefrau Margarete geboren. Früh wurde Peter in die Unternehmungen der Eltern im Kanusportverband und im Wanderverein einbezogen, die bald seine Begeisterung weckten. Der Vater nahm ihn schon als Schüler mit zu Vorträgen in das Görlitzer Naturkundemuseum. Auf Exkursionen in die Umgebung von Görlitz beeindruckten ihn am Löbauer Wasser die Süßwasserschwämme und in den Königshainer Bergen der nächtliche Gesang des Ziegenmelkers. So entstand früh eine lebenslange …


Die Türkentaube Streptopelia Decaocto In Der Mongolei, Michael Stubbe, Annegret Stubbe, Davaa Lchagvasuren, Nayamsuren Batsaikhan, Sundev Gombobaatar Jan 2021

Die Türkentaube Streptopelia Decaocto In Der Mongolei, Michael Stubbe, Annegret Stubbe, Davaa Lchagvasuren, Nayamsuren Batsaikhan, Sundev Gombobaatar

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The first record of Streptopelia decaocto in Mongolia was noticed 1988 in the Dzungarian Gobi, Somon Bulgan, by the Mongolian-German Biological Expedition. In the last 30 years, this bird species has settled nearly all suitable habitats, so parks in the cities and Somon centres, river valleys and in the arid zone, the sajrs with elm trees or poplars as well as in some oases.

Dem Ornithologen und Schüler von Erwin Stresemann Eugeniusz Nowak in Würdigung seiner großen Verdienste in der Erforschung der Migration der Türkentaube mit herzlichen Glückwünschen zum 88. Geburtstag am 08. Juni 2021 gewidmet.


Diversity Of Moths (Lepidoptera: Heterocera) In North-Central Mongolia, Khishigdelger Enkhtur, Martin Pfeiffer, Uuganbayar Munkhbat, Bazartseren Boldgiv Jan 2021

Diversity Of Moths (Lepidoptera: Heterocera) In North-Central Mongolia, Khishigdelger Enkhtur, Martin Pfeiffer, Uuganbayar Munkhbat, Bazartseren Boldgiv

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In this study, was aimed at 1) collecting baseline data in order to study distribution of moths in the future, and 2) estimating diversity of moths distributed in central and northern Mongolia. For this study were collected specimens from 266 species, representing 15 families from 7 study sites during 92 nights spanning over two years. Samples were collected around the research stations Tunkhel and Khonin Nuga in Selenge Aimag, Ikhtamir in Arkhangai Aimag, Mungunmorit and Undurshireet Soums in Tuv Aimag, as well from Shargamorit near Ulaanbaatar, the capital of Mongolia, and from Tsenkhermandal Soum in Khentii Aimag. So were found …


The Corvonirmus Group (Insecta, Psocodea, Phthiraptera, Ischnocera) Of Corvids (Aves, Corvidae). I. Stubbenirmus Gen. Nov., Eberhard Mey Jan 2021

The Corvonirmus Group (Insecta, Psocodea, Phthiraptera, Ischnocera) Of Corvids (Aves, Corvidae). I. Stubbenirmus Gen. Nov., Eberhard Mey

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

1. The genera Corvonirmus Eichler, 1944 (with 11 spp.), Hecatrishula Gustafsson & Bush, 2017 (with 8 spp.), and Lycocoranirmus Mey, 2017 (with 5 spp.), which belong to the Brueelia complex (Philopteridae s. l.), are morpho-structurally characterized mainly by head structures and chaetotaxy. They are defined as a group of related taxa that should be placed in the rank of a subfamily (Corvonirminae subfam. nov.) if the former Brueeliinae sensu EICHLER (1963:177) would get the status of a separate family (Brueeliidae).

2. Within the Corvonirmus group, the former Hecatrishula biguttata species group is assumed to be classified as new …


The First Detection Of Ceratophyllus Fleas And An Ischnocera Louse On The Great Cormorant Phalacrocorax Carbo In Mongolia, Daniel Kiefer, Michael Stubbe, Annegret Stubbe, Volker Neumann, Sundev Gombobaatar, Davaa Lchagvasuren, Mathias Kiefer Jan 2021

The First Detection Of Ceratophyllus Fleas And An Ischnocera Louse On The Great Cormorant Phalacrocorax Carbo In Mongolia, Daniel Kiefer, Michael Stubbe, Annegret Stubbe, Volker Neumann, Sundev Gombobaatar, Davaa Lchagvasuren, Mathias Kiefer

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

There are summarized data on ectoparasites of Mongolian birds. The Mongolian-German Biological Expeditions found first records for the flea Ceratophyllus vagabundus and the Ischnocera louse Pectinopygus gyricornis at the host Phalacrocorax carbo.


Coyotes, Rick Tischaefer Nov 2020

Coyotes, Rick Tischaefer

Wildlife Damage Management Technical Series

The coyote (Canis latrans; Figure 1) is a medium-sized member of the canid family. Once primarily found in western deserts and grasslands, coyotes have expanded their range across North America and into diverse habitats, including urban areas. This expansion occurred during a time of extensive habitat change and efforts by people to suppress coyote populations to prevent damage. Coyotes can cause a variety of conflicts related to agriculture, natural resources, property, and human health and safety. This document highlights a variety of methods for reducing those conflicts. Coyotes are a highly adaptable species and may become habituated to some management …


Financial Health Of Grain Operations After Adding A Hog Barn, Elliott James Dennis Sep 2020

Financial Health Of Grain Operations After Adding A Hog Barn, Elliott James Dennis

Extension Farm and Ranch Management News

There is strong local and national interest in adding hog barns to existing row crop operations. Declining on farm income over the past several years has accelerated this interest. Grain operations cite diversifying farm income, adding another family to the farm operation, and/or replace commercial fertilizer expense as the primary reasons for adding a hog barn.

While there is industry demand to increase hog contract growing, these agreements can possess significant benefits and risks to producers. This is the second of a four part series which will discuss some financial and legal implications of adding a hog barn to an …


Feral Swine, Michael P. Glow, Nathan P. Snow, Kurt C. Vercauteren Aug 2020

Feral Swine, Michael P. Glow, Nathan P. Snow, Kurt C. Vercauteren

Wildlife Damage Management Technical Series

Feral swine (Sus scrofa; Figure 1), also known as feral hogs, feral pigs, wild pigs, wild boar, or other similar derivations, are a non-native species considered to be one of the most destructive invasive terrestrial vertebrates in North America. While feral swine populations remained relatively small and confined in the continental United States following initial introductions by European explorers during the 15th century, substantial range expansion has occurred across every geographical region of the United States (Figure 2). This expansion has primarily been attributed to human-mediated movements, predominately for the purpose of establishing populations for recreational hunting, and facilitated by …


Spatial Ecology And Resource Selection Of Bighorn Sheep (Ovis Canadensis) Ewes In A Prairie Badlands Population, Erin Wood Jul 2020

Spatial Ecology And Resource Selection Of Bighorn Sheep (Ovis Canadensis) Ewes In A Prairie Badlands Population, Erin Wood

School of Natural Resources: Dissertations, Theses, and Student Research

The basic spatial ecology and habitat relationships of female bighorn sheep in Nebraska are poorly understood. Establishing seasonal patterns of space use and resource selection for this population at the margin of their historical and current range addresses a key knowledge gap and provides important baseline information for ongoing conservation efforts in Nebraska. We deployed GPS radio-collars on 56 adult ewes in western Nebraska to quantify seasonal space use, movements, and resource selection of ewes. To investigate spatial ecology, we quantified movements of ewes and the factors that influence home range size, seasonal use, and spatial stability across seasons. Home …


A Survey Of Dairy-Goat Keeping In Zanzibar, Tiffanie Stone, Charles A. Francis, L. O. Eik Jul 2020

A Survey Of Dairy-Goat Keeping In Zanzibar, Tiffanie Stone, Charles A. Francis, L. O. Eik

Department of Agronomy and Horticulture: Faculty Publications

Dairy goats with improved genetics for milk production were recently introduced onto small-scale farms in Zanzibar through governmental and non-governmental projects. These projects were meant to support small-scale farmers by improving both income and household nutrition through milk production. No follow up had been conducted to understand what effects dairy goat keeping had on these small-scale farms, or how they could be improved. A survey of 193 dairy goat farmers in Zanzibar was conducted, including 30% and 60% of all dairy goat farmers on Unguja and Pemba, the two largest islands, respectively. The objective was to understand the impact keeping …


The Effects Of Phosphate On Larval Western Barred Tiger Salamanders (Ambystoma Mavortium), Lexy Polivanov, Dennis Ferraro Apr 2020

The Effects Of Phosphate On Larval Western Barred Tiger Salamanders (Ambystoma Mavortium), Lexy Polivanov, Dennis Ferraro

UCARE: Research Products

This study seeks examine the effects of elevated phosphate levels on the larval stage of the Western Barred Tiger Salamander (Ambystoma mavortium). Hypothesis: Additional phosphate in the water will cause the larval salamanders to have a slower metamorphosis rate than the control group with no additional phosphates. This hypothesis is based off of research that showed that additional nitrogen in the water caused a slower growth rate in the Western Barred Tiger Salamander (Ambystoma mavortium) (Griffis-Kyle, 2007).

The hypothesis was rejected. The dates the larvae morphed alternated between treatment and control. The treatment metamorphosis was not …


Effect Of Calcium Supplement On Eyesight Of Western Tiger Salamanders, Abigail Horner, Dennis Ferraro Apr 2020

Effect Of Calcium Supplement On Eyesight Of Western Tiger Salamanders, Abigail Horner, Dennis Ferraro

UCARE: Research Products

There has been some discussion in herpetoculture about adding calcium supplements to the diets of salamanders. Adding calcium supplements to a salamander’s diet has been indicated to contribute to blindness. Calcium supplements are usually given to reptiles and amphibians to prevent dietary deficiencies, particularly metabolic bone disease. The link between lack of calcium and metabolic bone disease is well established in reptiles, but is lacking significant research with regards to amphibians. Within the eye of a salamander, there are calcium channels that mediate photosynthetic rods in the absence of light. With a calcium rich diet, it is believed that these …


Grackles, Michael J. Bodenchuk, David L. Bergman Apr 2020

Grackles, Michael J. Bodenchuk, David L. Bergman

Wildlife Damage Management Technical Series

Numbering in the tens of millions of birds, grackle populations in North America can cause a variety of conflicts with people. Grackles eat agricultural crops and livestock feed, damage property, spread pathogens, and collide with aircraft. Their large roosts can be a nuisance in urban and suburban areas. A combination of dispersal techniques, exclusion, and lethal removal may help to reduce grackle damage.

Grackles adapt easily to human-dominated environments, and exploit human food and other features of human landscapes. Thus, an integrated damage management approach to grackle damage focuses on reducing and eliminating the damage, rather than simply controlling grackle …


The Effects Of Phosphate On The Metamorphosis Of Larval Western Barred Tiger Salamanders (Ambystoma Mavortium), Lexy Polivanov Mar 2020

The Effects Of Phosphate On The Metamorphosis Of Larval Western Barred Tiger Salamanders (Ambystoma Mavortium), Lexy Polivanov

Honors Program: Senior Projects (Public)

This investigation will collect data to assist in determining if elevated aquatic phosphate levels affects the metamorphosis rate of larval western barred tiger salamanders (Ambystoma mavortium). Monoammonium phosphate fertilizers are being used on crops in Nebraska (NDA, 2017). This area lines up with the area the western barred tiger salamanders are disappearing from (Damme, 2018). Monoammonium phosphate is made up of nitrogen and phosphate. There have been several studies showing how nitrogen is harmful to amphibians such as this salamander (Griffis-Kyle, 2007) (Griffis-Kyle & Richtie, 2007), but there have not been many showing how phosphate affects amphibian’s metamorphosis …


Range Extension For Dekay’S Brownsnake (Storeria Dekayi) In South-Central Nebraska, Macy K. Cool, Keith Geluso Feb 2020

Range Extension For Dekay’S Brownsnake (Storeria Dekayi) In South-Central Nebraska, Macy K. Cool, Keith Geluso

Transactions of the Nebraska Academy of Sciences and Affiliated Societies

Dekay’s Brownsnake (Storeria dekayi) generally occurs in southeastern parts of the state, where the species was known from 16 counties. Herein, we update the distribution of S. dekayi in the state and briefly comment on habitat and abundance from observations in September and October 2018. We documented 7 new county records that extend its distribution in south-central Nebraska. We observed that S. dekayi does not only reside in mesic wooded habitats in Nebraska but also occupies open environments, including areas with upland grasslands and row-crop agriculture. Dekay’s Brownsnake currently is listed as a species of concern …