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Arlt, Debora. "Habitat selection : demography and individual decisions /". Uppsala : Dept. of Ecology, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/200717.pdf.
Pełny tekst źródłaCushman, Susan Flanders. "Fish movement, habitat selection, and stream habitat complexity in small urban streams". College Park, Md. : University of Maryland, 2006. http://hdl.handle.net/1903/3873.
Pełny tekst źródłaThesis research directed by: Marine-Estuarine-Environmental Sciences. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.
Ignatiuk, Jordan B. (Jordan Blake). "Breeding biology and habitat selection of American crows in Saskatchewan parkland habitat". Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=60454.
Pełny tekst źródłaOverall, density of nests at St. Denis averaged twice that found at Elstow and clutches were initiated earlier at St. Denis than at Elstow. Clutch size and hatching success did not differ between years or areas, but in 1987, nests at St. Denis produced nearly twice as many young as at Elstow.
Crows nested in willow, aspen, and other trees. Nest trees were larger than randomly-selected trees in both years and areas. At St. Denis, the area near active crow nests had, on average, more permanent wetlands, a greater proportion of pasture and wetland, and less area of cultivation than areas adjacent to random sites. At St. Denis, successful nests were closer to permanent water and had more permanent wetlands nearby than depredated nests, but discriminant function analysis could not correctly distinguish successful nests in either area. Selection of nest characteristics to evade predators does not appear to provide predictable advantages to breeding crows.
Koskela, A. (Anni). "Wolverine habitat selection, diet and conservation genetics". Doctoral thesis, Oulun yliopisto, 2013. http://urn.fi/urn:isbn:9789526202273.
Pełny tekst źródłaTiivistelmä Ahma (Gulo gulo) tunnetaan sekä haaskansyöjänä että keskikokoisia hirvieläimiä ja pienriistaa saalistavana petona. Fennoskandian alueella peuran kesy tai villi muoto on ahman merkittävin saalislaji. Noin puolet Suomen 180–220 ahmasta elää Pohjois-Suomessa poronhoitoalueella, ja loput Itä- ja Keski-Suomessa. Poronhoitoalueen ulkopuolella elävien ahmojen ekologiaa on tutkittu erityisen vähän. Väitöstyössäni tarkastelin ahman habitaatinvalintaa, ruokavaliota ja populaatiogenetiikkaa pääasiassa Pohjois- ja Itä-Suomen alueilla. Tutkimukseni tulokset osoittivat, että suden läheisyys oli yksi tärkeimmistä ahman habitaatinvalintaan vaikuttavista tekijöistä. Tämä havainto tukee hypoteesia, jonka mukaan ahma saattaisi hyötyä susien läheisyydestä suuremman haaskatiheyden ansiosta. Todennäköisesti ahmat elävät mielellään samoilla seuduilla susien kanssa, mutta kaihtavat läheistä kanssakäymistä välttääkseen killansisäisen saalistuksen. Tutkimusteni perusteella sekä ahman lisääntymistila että alueen saaliseläinten saatavuus vaikuttivat ahman ruokavalioon. Poro ja metsäjänis olivat lisääntyvien ahmanaaraiden tärkein ravintokohde Pohjois-Suomessa. Itä-Suomessa merkittävin lisääntyvien naaraiden ravintokohde oli hirvi, jota ahmat hyödyntävät lähinnä haaskojen muodossa, mutta urokset ja ei-lisääntyvät naaraat sen sijaan saalistivat eniten metsäjänistä. Ahmat siis näyttävät hyödyntävän opportunistisesti sitä ravintokohdetta, joka kullakin alueella on energiatehokkainta saavuttaa. Susien ja ihmisten jälkeensä jättämät haaskat ovat merkittävä ravintolähde ahmoille alueilla, joilla keskikokoisten hirvieläinten tiheydet ovat alhaisia. Ahman populaatiogeneettinen tutkimus osoitti, että Suomen ahmat ovat geneettisesti jakautuneet kahteen alapopulaatioon, pohjoiseen ja itäiseen. Ahmakannan geneettinen monimuotoisuus oli pientä, ja molemmissa alapopulaatiossa oli nähtävissä merkkejä äskettäisestä pullonkaulailmiöstä. Populaatioiden välisen geenivirran määrän tulisi olla nykyistä korkeampi, jotta ahmakannan elinvoimaisuuden voisi katsoa olevan turvattu tulevaisuudessa
Knight, Thomas W. "Habitat selection in Brook Trout, Salvelinus fontinalis /". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0033/NQ62450.pdf.
Pełny tekst źródłaRangeley, Robert W. (Robert William). "Habitat selection in juvenile pollock, Pollachius virens : behavioural responses to changing habitat availability". Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=28648.
Pełny tekst źródłaCatton, Robert Bruce. "Winter use and habitat selection of moose in openings and adjacent upland forested habitats". Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/31919.
Pełny tekst źródłaForestry, Faculty of
Graduate
Jones, Carys Wynn. "Habitat and rest site selection in polymorphic Lepidoptera". Thesis, University of Cambridge, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.358332.
Pełny tekst źródłaSmith, Dustin M. "Habitat selection and predation risk in larval lampreys". Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10493.
Pełny tekst źródłaBrockman, Julia C. "HABITAT SELECTION OF REINTRODUCED BISON IN NORTHERN ILLINOIS". OpenSIUC, 2017. https://opensiuc.lib.siu.edu/theses/2187.
Pełny tekst źródłaScott, Cody B. "Behavioral Characteristics Affect Habitat Selection of Domestic Ruminants". DigitalCommons@USU, 1995. https://digitalcommons.usu.edu/etd/6488.
Pełny tekst źródłaCarrière, Suzanne. "Habitat selection by sympatric black ducks and mallards in Abitibi, Quebec". Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=59984.
Pełny tekst źródłaBlack duck broods preferred emergent and shrub-rich areas in both years. Mallard broods' habitat use differed from 1988 to 1989 (from emergent to shrub-emergent areas) when average water levels were higher. Diversity of habitats seems more important to rearing black ducks than to mallards. Rearing mallards seem to modify their use of habitats according to changing habitat availability. Daily survival rates differed only slightly between "species".
Telemetry was used to study wetland use by six mallard and three black duck non-breeding females. Swamps were preferred whereas ericaceous shrub wetlands were avoided by both "species". Beaver (Castor canadensis) ponds were extensively used during the moulting period. Home ranges averaged 302.7 ha for black ducks and 201.2 ha for mallards.
Olovsson, Anders. "Habitat selection by moose (Alces alces) in southwestern Sweden". Thesis, Karlstad University, Faculty of Social and Life Sciences, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-1033.
Pełny tekst źródłaThe moose (Alces alces) is very important both economically and ecologically, therefore all knowledge of moose is vital for future management of the moose population. Little is known about moose habitat selection in Sweden. In coastal southwestern Sweden growing human population and new infrastructure projects continuously threaten to fragment and isolate local moose populations. The habitat selection of 22 moose, 8 males and 14 females, in southwestern Sweden was studied from February 2002 until December 2005. The moose were captured and fitted with GPS-collars and positions were collected at 2-hour intervals. The number of moose positions totaled 71103 during the study period of 46 months. Data for individual animals were divided into four seasons: spring, summer, fall and winter based on climate and moose biology. A total of 125 moose seasonal home ranges were generated and habitat use within each of the generated home ranges was studied using Euclidean distance-based analysis. A reclassified digital landcover map was divided into the land use classes agriculture, clear-cut, coniferous forest, deciduous forest, mire and mountain. The results showed that there was a difference in habitat selection between males and females. Males were significantly closer to forest and clear-cuts compared to females. Both males and females selected clear-cuts and avoided agriculture within their home ranges.
Älgen är en viktig art, både ekonomiskt och ekologiskt, och all kunskap är viktig för att även i framtiden kunna sköta en sund älgstam. Trots flertalet studier finns det många frågetecken om älgens habitatval i Sverige. En ökad exploateringstakt och nya infrastrukturprojekt hotar att fragmentera och isolera populationer av älg. Habitatvalet hos 22 älgar, 8 tjurar och 14 kor, i sydvästra Sverige studerades mellan februari 2002 och december 2005. Älgarna sövdes och utrustades med GPS-sändare, deras positioner registrerades varannan timma och det totala antalet positioner under den 46 månader långa studietiden var 71103 stycken. Data från varje älg delades in i 4 säsonger; vår, sommar, höst och vinter, baserat på klimat och älgens biologi. Totalt genererades 125 hemområden baserade på säsong, och valet av habitat inom varje hemområde studerades med hjälp av Euclidean distance-based analysis. En omklassificerad digital marktäckedata användes som var indelad i 6 olika klasser; odlad mark, hygge, barrskog, lövskog, myrmark och berg i dagen. Resultaten visade att det var skillnad mellan könen i hur de väljer habitat. Tjurarna var signifikant närmare barrskog och hyggen än korna, men både tjurar och kor selekterade för hyggen och undvek odlad mark inom deras hemområden.
Hartman, Patricia J. "HABITAT SELECTION OF THE CERULEAN WARBLER IN EASTERN KENTUCKY". UKnowledge, 2006. http://uknowledge.uky.edu/gradschool_theses/285.
Pełny tekst źródłaSands, Timothy. "Habitat preference and selection in a Bombina hybrid zone". Thesis, University of Edinburgh, 2005. http://hdl.handle.net/1842/14349.
Pełny tekst źródłaBerner, Louis Robert 1963. "Habitat selection by mountain sheep in Mojave Desert scrub". Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278189.
Pełny tekst źródłaMaletzke, Benjamin Thomas. "Winter habitat selection of lynx (Lynx canadensis) in northern Washington". Online access for everyone, 2004. http://www.dissertations.wsu.edu/Thesis/Summer2004/b%5Fmaletzke%5F081704.pdf.
Pełny tekst źródłaPakanen, V. M. (Veli-Matti). "Linking demography with dispersal and habitat selection for species conservation". Doctoral thesis, Oulun yliopisto, 2011. http://urn.fi/urn:isbn:9789514296352.
Pełny tekst źródłaTiivistelmä Uhanalaisten lajien suojelussa tehokkaiden suojelutoimien suunnittelu edellyttää tietoa hoitokohteen elinkierron eri vaiheista ja niiden demografisesta merkityksestä. Käytän tutkimuksessani pitkäaikaisaineistoja (pesintä ja merkintä-takaisinpyynti) kuvatakseni tutkimuslajien demografiaa ja arvioidessani populaatioiden elinkykyä sekä hoitotoimia. Tutkimuskohteinani ovat lapinsirrin ja etelänsuosirrin, kahden uhanalaisen kahlaajan, Perämeren rantaniityillä pesivät metapopulaatiot. Näiden lajien elinympäristöjä hoidetaan pääosin laiduntamalla. Demografinen mallinnus osoitti molempien populaatioiden olevan nielupopulaatioita, joiden säilyminen on tulomuuton varassa sillä poikastuotto ei kompensoi aikuisten kuolleisuutta ja poismuuttoa. Tutkimusalueella syntyneiden ja sinne rekrytoituneiden lapinsirrien pesä- ja aikuissäilyvyydet olivat paremmat kuin tulomuuttajilla. Tämän huomioiminen populaatiomalleissa tuotti realistisimman kasvukertoimen arvion ja osoitti paikallisten rekryyttien olevan tulomuuttajia merkittävämpiä populaation kasvun kannalta. Pesinnässään onnistuneet tulomuuttajat palasivat seuraavina pesimäkausina epäonnistuneita todennäköisemmin. Paikallisilla rekryyteillä vastaavaa eroa ei havaittu. Ilmiö heijastellee tulomuuttajien muuttoalttiutta myöhemminkin ja voi kertoa erilaisista pesimädispersaalistrategioista. Lisääntymismenestyksen parantaminen voisi parantaa elinkykyä myös pienentämällä poismuuttoa. Tekopesäkokeen perusteella pesien tallausriski oli laidunnetuissa ympäristöissä korkea vaikka laidunnuspaine noudatteli hoitosuosituksia. Tämä johtunee ainakin osin laskennallista korkeammasta todellisesta laidunpaineesta, mikä puolestaan johtui lintujen ja karjan yhtäläisestä tilankäytöstä. Rekrytoituvat suosirrit suosivat voimakkaasti laidunnettuja matalakasvuisia niittyjä, joissa poikastuotto oli parempi kuin, laiduntamattomilla niityillä. Toisaalta, tallausriski on voimakkaasti laidunnetuilla niityillä suuri ja jo pienetkin pesätappiot uhkaavat suosirripopulaation elinkykyä. Täten laitumet voivat toimia ns. ekologisina loukkuina, jos laidunnus aloitetaan liian aikaisin suhteessa pesintään. Laidunnus on kuitenkin suositeltava hoitomuoto, sillä se näyttää tuottavan parhaita pesimäympäristöjä etelänsuosirrille. Tulosten mukaan laidunnuksen ajoitusta, laajuutta ja laidunnuspainetta on muokattava kohdekohtaisesti, jotta saavutetaan paras tulos uhanalaisten lajien suojelun kannalta
Larter, Nicholas C. "Diet and habitat selection of an erupting wood bison population". Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/27976.
Pełny tekst źródłaScience, Faculty of
Zoology, Department of
Graduate
Lindsell, Jeremy A. "Ranging behaviour and habitat selection in the Scaly-breasted Illadopsis". Thesis, University of Oxford, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393380.
Pełny tekst źródłaPettett, Carly E. "Factors affecting hedgehog distribution and habitat selection in rural landscapes". Thesis, University of Oxford, 2015. https://ora.ox.ac.uk/objects/uuid:7f88e459-4d9f-4e1f-ae8e-03f000295bce.
Pełny tekst źródłaCao, Wei. "Coexistence of three species of desert scorpions by habitat selection". Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186545.
Pełny tekst źródłaBult, Tammo Peter. "Distribution and habitat use by juvenile Atlantic salmon (Salmo salar) at multiple spatial scales, and implications for habitat modelling and fish-habitat management". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/NQ47493.pdf.
Pełny tekst źródłaAiken, Robin A. "Determination of habitat preferences of pronghorn (Antilocapra americana) on the rolling plains of Texas using GIS and remote sensing". Thesis, Connect to this title online, 2005. http://www.unt.edu/etd/all/May2005/Open/aiken%5Frobin%5Fa/index.htm.
Pełny tekst źródłaMelaschenko, Natalie Christina. "Small mammal abundance, habitat selection, and movement patterns in shrub-steppe habitat in British Columbia's Okanagan Valley". Thesis, University of British Columbia, 2010. http://hdl.handle.net/2429/19940.
Pełny tekst źródłaFontaine, Alain Jacques. "Habitat selection by red-tailed hawks (Buteo jamaicensis) in prairie landscapes managed for enhanced waterfowl recruitment". Thesis, McGill University, 2002. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=29434.
Pełny tekst źródłaBell, Katie. "Habitat selection and population dynamics of selected herbivores on Sondela Nature Reserve, Limpopo". Diss., University of Pretoria, 2003. http://hdl.handle.net/2263/26204.
Pełny tekst źródłaDissertation (MSc (Wildlife Management))--University of Pretoria, 2003.
Animal and Wildlife Sciences
unrestricted
Peterson, James T. "The evaluation of a hydraulic unit-based habitat system /". free to MU campus, to others for purchase, 1996. http://wwwlib.umi.com/cr/mo/fullcit?p9821340.
Pełny tekst źródłaBilbao, Joshua Vicente. "Predicting feeding site selection of mule deer on foothill and mountain rangelands". Thesis, Montana State University, 2008. http://etd.lib.montana.edu/etd/2008/bilbao/BilbaoJ1208.pdf.
Pełny tekst źródłaCheng, Yi-Ru. "Differential growth of body components among coexisting passerine species in response to nest predation risk". CONNECT TO THIS TITLE ONLINE, 2008. http://etd.lib.umt.edu/theses/available/etd-01132009-180702/.
Pełny tekst źródłaLarson, Kyle Blake. "Nest habitat selection of burrowing owls in relation to soils, burrow availability, and burrow temperature". Pullman, Wash. : Washington State University, 2009. http://www.dissertations.wsu.edu/Thesis/Summer2009/K_Larson_072409.pdf.
Pełny tekst źródłaTitle from PDF title page (viewed on Sept. 17, 2009). "School of Earth and Environmental Sciences." Includes bibliographical references (p. 35-42).
Graf, Astrid. "Influencing habitat selection and use through conspecific attraction and supplementary feeding". Diss., Lincoln University, 2008. http://hdl.handle.net/10182/1061.
Pełny tekst źródłaHall, Anna Marie. "Foraging behaviour and reproductive season habitat selection of northeast pacific porpoises". Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/37218.
Pełny tekst źródłaBasile, Cynthia. "Relative abundance and habitat selection by Cerulean warblers in southern Indiana". Virtual Press, 2002. http://liblink.bsu.edu/uhtbin/catkey/1236576.
Pełny tekst źródłaWeinman, Michelle L. "Grass pickerel diet and habitat selection in Indiana rivers and streams". Virtual Press, 2006. http://liblink.bsu.edu/uhtbin/catkey/1356256.
Pełny tekst źródłaDepartment of Biology
Lautenbach, Joseph Mark. "Lesser prairie-chicken reproductive success, habitat selection, and response to trees". Thesis, Kansas State University, 2014. http://hdl.handle.net/2097/18810.
Pełny tekst źródłaDepartment of Biology
David A. Haukos
The lesser prairie-chicken (Tympanuchus pallidicinctus) is a species of prairie grouse native to the southwest Great Plains. Population declines and threats to populations of lesser prairie-chickens led U.S. Fish and Wildlife Service to list the species as “threatened” under the protection of the Endangered Species Act in May 2014. Lesser prairie-chickens are found within three distinct ecoregions of Kansas and Colorado and portions of the species’ range are affected by tree encroachment into grasslands. The effect of trees on lesser prairie-chickens is poorly understood. I evaluated habitat selection and reproductive success and across the northern portion of the species’ range. I captured female lesser prairie-chickens within the three different ecoregions in Kansas and Colorado to track nest and brood survival and measure nest and brood habitat. My findings show that there are regional and annual variations in nest and brood survival. Mean nest survival during 2013 and 2014 was estimated to be 0.388 (95% CI = 0.343 – 0.433) for a 35-day exposure period. Brood survival during 2013 and 2014 was estimated to be 0.316 (95% CI = 0.184 – 0.457) for 56 days. Chick survival was the lowest during the first week of life and is probably a limiting factor for population growth. Chick and brood survival decreased as Julian hatch date increased. Across the northern portion of the species’ range, females consistently select visual obstruction between 2-3 dm. Vegetation at the nest changes between regions and years to reflect environmental and regional conditions. Broods consistently selected habitats with greater percent cover of forbs than was expected at random across all study sites. Broods also selected against areas of bare ground. The threshold of lesser prairie-chicken use was 2 trees/ha throughout the year. No nests were located within areas with greater densities. Lesser prairie-chickens had a greater probability of use at greater distances from trees and at lower tree densities. To provide adequate nesting habitat managers should provide 2-3 dm of visual obstruction. Providing forb cover with visual obstruction between 2.5-5 dm near nesting habitat should provide adequate habitat for broods. Removing trees in core habitats and expand removal efforts outward should expand potential habitat for lesser prairie-chickens.
Champneys, A. "Factors affecting distribution and habitat selection of water shrews Neomys fodiens". Thesis, Nottingham Trent University, 2012. http://irep.ntu.ac.uk/id/eprint/100/.
Pełny tekst źródłaBecker, Scott. "Habitat selection, condition, and survival of Shiras moose in northwest Wyoming". Laramie, Wyo. : University of Wyoming, 2008. http://proquest.umi.com/pqdweb?did=1799711361&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.
Pełny tekst źródłaHall, Linnea Suzanne. "Habitat selection by the elegant trogon (Trogon elegans) at multiple scales". Diss., The University of Arizona, 1996. http://hdl.handle.net/10150/187497.
Pełny tekst źródłaDodd, Jane. "Topographic learning and memory in habitat selection by Lipophrys pholis L". Thesis, Bangor University, 1998. https://research.bangor.ac.uk/portal/en/theses/topographic-learning-and-memory-in-habitat-selection-by-lipophrys-pholis-l(65cf5889-e075-4b3b-a268-06e3484ce380).html.
Pełny tekst źródłaPeck, Riley D. "Seasonal Habitat Selection by Greater Sage Grouse in Strawberry Valley Utah". BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/3180.
Pełny tekst źródłaEdgel, Robert John. "Habitat Selection and Response to Disturbance by Pygmy Rabbits in Utah". BYU ScholarsArchive, 2013. https://scholarsarchive.byu.edu/etd/3928.
Pełny tekst źródłaSchumaker, Nathan H. "Habitat connectivity and spotted owl population dynamics /". Thesis, Connect to this title online; UW restricted, 1995. http://hdl.handle.net/1773/5524.
Pełny tekst źródłaJansson, Camilla. "Habitat selection and oviposition of the endangered butterfly Scolitantides orion in Sweden". Thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-94649.
Pełny tekst źródłaFigueroa, Omar Antonio. "Nesting habitat selection and habitat associations of juvenile Jabiru storks (Jabiru mycteria) in Belize, Central America implications for conservation /". [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0012000.
Pełny tekst źródłaFrey, Sarah. "Metapopulation Dynamics and Multi-Scale Habitat Selection of a Montane Forest Songbird". ScholarWorks @ UVM, 2008. http://scholarworks.uvm.edu/graddis/86.
Pełny tekst źródłaStanek, John R. "Breeding habitat selection by rosy-finches in the San Juan Mountains, Colorado". Laramie, Wyo. : University of Wyoming, 2009. http://proquest.umi.com/pqdweb?did=1939351891&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.
Pełny tekst źródłaHewitson, Stacy. "Habitat selection by breeding American black ducks (Anas rubripes) in northeastern Nova Scotia". Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22739.
Pełny tekst źródłaBlack duck pairs selected deciduous shrub ponds and sparsely vegetated ponds and avoided estuarine marsh and large lake habitat. Hens with broods preferred the deciduous shrub habitat while they avoided large lakes.
Black duck pairs appeared to use the distance to a brood-rearing pond as a cue in site selection. The closer a pond was to a suitable rearing pond the more likely it was occupied by a pair, regardless of food or cover resource availability. Black ducks, however, likely used site attributes such as the perimeter of the pond, the availability of aquatic invertebrates and the relative abundance of alder, willow and dead timber as cues in the selection brood-rearing habitat.
Black duck duckling survival, an estimate of recruitment, was the highest on preferred deciduous shrub ponds. Duckling survival was also higher on ponds with only one brood as opposed to ponds with several broods.
The most productive habitat for black ducks in the Antigonish study area were isolated, deciduous shrub ponds influenced by beaver activity. Black duck population numbers can be enhanced by managing local beaver populations.
Baum, Elizabeth M. "Monitoring Domestic Sheep Energy Requirements and Habitat Selection on Summer Mountain Range Using Low-Cost GPS Collar Technology". BYU ScholarsArchive, 2021. https://scholarsarchive.byu.edu/etd/9177.
Pełny tekst źródłaWolfe, Scott Adrian. "Habitat selection by calving caribou of the central arctic herd, 1980-95". PURL, 2000. http://www.arlis.org/docs/vol1/76789631.pdf.
Pełny tekst źródła