DOCSLIB.ORG

Tetraophasis Szechenyii)

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Tetraophasis Szechenyii) NORTH-WESTERN JOURNAL OF ZOOLOGY 12 (2): 314-318 ©NwjZ, Oradea, Romania, 2016 Article No.: e151606 http://biozoojournals.ro/nwjz/index.html Seasonal habitat use of a rare high-mountain Galliform species, the buff-throated partridge (Tetraophasis szechenyii) Yu XU1,2,3, Nan YANG3, Bin WANG3, Liang DOU3, Hanqiu YUE1, Shirong LIU2,* and Jianghong RAN3,* 1. School of Resources and Environmental Sciences, Pingdingshan University, Pingdingshan 467000, China. 2. Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, China. 3. Key Laboratory of Bio-Resources and Eco-Environment of Ministry Education, School of Life Sciences, Sichuan University, Chengdu 610064, China. *Corresponding authors, S.R. Liu, E-mail: [email protected]; J.H. Ran, E-mail: [email protected] Received: 11. June 2014 / Accepted: 14. September 2015 / Available online: 13. November 2015 / Printed: December 2016 Abstract. Poor knowledge of habitat use has previously limited the development of conservation strategies for buff-throated partridges (Tetraophasis szechenyii), a rare high-mountain Galliform species endemic to western China. During 2008–2009, we studied habitat use patterns of buff-throated partridges by investigating their relative abundances in five main habitat types: fir–larch forests, mixed spruce–larch–birch forests, oak thickets, pine forests, and rhododendron shrubs. Along nine established transects, we recorded 46 and 56 feather samples in autumn and in winter, respectively; and at 84 point stations we recorded 53 call responses during spring months. By comparing the relative abundance in each kind of habitat with the relative areas of the habitats available, we found that buff-throated partridges avoided using pine forests, regardless of the season. However, buff-throated partridges’ preferences for specific habitats differed between seasons. They preferred fir–larch forests in autumn, but switched preference to oak thickets during the course of winter and spring months. We speculate that the habitat use pattern is mainly related to diet and feeding habits. Based on our results and some previous findings, we provide some suggestions for conservation of partridge habitat. Key words: call, conservation, feather, point count, relative abundance, transect. Introduction alpine meadows and rocky ravines at 3,350–4,600 m (Ludlow 1944, Liu & Ci 1993, Wu et al. 1994, The buff-throated partridge (Tetraophasis szechenyii) Potapov 2002, Wen et al. 2008, Yu et al. 2011). is a sexually monochromatic, medium-sized Galli- Estimating relative abundance is an important form species endemic to the high mountains of part of quantifying a species’ habitat use (Bibby et western China, and distributed in south-eastern al. 1998, Sutherland & Green 2004). In this study, Tibet, southern Qinghai, western Sichuan and we examined the general habitat use pattern of north-western Yunnan (MacKinnon & Phillipps buff-throated partridges from autumn to spring, 2000, Madge & McGowan 2002). Although this by comparing the relative abundance of species in species is in the Least Concern category by the each available habitat with the expected abun- current IUCN Red List (IUCN 2015), it is consid- dance (determined by proportional representation ered to be endangered by the Red Book of China of each habitat type in the study area). and is legally listed in Category I of the nationally protected animals (Wang & Xie 2004). Conserva- tion efforts have emphasized the need to under- Materials and Methods stand partridge ecology, especially regarding habi- Study site tat use (Klaus et al. 2003, Lu 2006), information We conducted the study in the Pamuling Mountains that is fundamental to determining its conserva- (30°06′N 101°11′E; Fig. 1), Yajiang County, Ganzi Tibetan tion status (Bibby et al. 1998). Autonomous Prefecture, Sichuan, China, from late Au- However, habitat use of this species is still gust 2008 to June 2009. This site ranged in elevation ap- poorly known. Xu et al. (2010, 2014) and Zhang et proximately from 3,300 m to 4,300 m and covered an area 2 al. (2011) conducted quantitative studies of roost- of 50 km . The study site includes a Tibetan monastery and a sacred area of the mountain range, protected by the ing and nesting sites in a small area (3.4 km2). monastery; the efforts of the monastery have resulted in However, most existing reports are anecdotal in significant wildlife habitat conservation. The sub-humid nature, documenting that it lives in mixed conifer- climate of the Qinghai-Xizang Plateau predominates, with ous forests, rhododendron shrubs, oak thickets, autumn occurring from August to September, winter Habitat use of buff-throated partridges 315 Figure 1. Map showing location of the study site (Pamuling) in Yajiang County, Sichuan Province, China. from October to March, spring from April to June, and a to the dense cover of vegetation and the elusive behav- short summer in July (Yang et al. 2011; see Table 1 for the iour of this species. Alternatively, we recorded the num- seasonal mean temperature and precipitation through the ber of feathers discarded along designated transects to study period; data were download from obtain measures of relative abundances. The feathers re- http://cdc.nmic.cn/home.do). Plants begin flowering in corded were large veined feathers that are easy to identify, April, and flowering of dominant plants occurs predomi- including primaries, secondaries, tail feathers, and cov- nantly from May to June. During the study period, the erts. We did not record signs such as feeding traces and first ground-covering snow arrived in October, and per- feces, because of difficulties in distinguishing these signs manent snow cover occurred from November to March. of buff-throated partridges from those of sympatric Galli- formes such as white-eared pheasants (Crossoptilon cros- soptilon), blood pheasants (Ithaginis cruentus) and other Table 1. Seasonal mean temperature and precipitation in birds. the study site through the study period. We sited transects to avoid edge effects, despite the Season Temperature (°C) Precipitation (mm) steep terrain and dense vegetation types that complicated Autumn 5.7 231.2 travel in some areas. We positioned a total of nine tran- Winter -5 12.8 sects across the five main habitat types. The transects to- Spring 3.6 102 talled 28.5 km in length (Table 2), varying between 2 and Summer 7.9 335.7 6 km. We surveyed the transects about every two months. The study site has five main types: (1) Fir–larch for- Table 2. Length of transects surveyed through the five ests (FF), dominated by Abies squamata, and Larix potaninii; habitat types in autumn and winter and number of (2) Mixed spruce–larch–birch forests (DBCF), dominated point stations established in each habitat type during by Picea asperata, L. potaninii, and Betula platyphylla; (3) the spring survey. Oak thickets (OT), dominated exclusively by Quercus aq- Length of Number of Habitat type uifolioides; (4) Pine forests (PPF), dominated exclusively transects travelled point stations by Pinus densata; and (5) Rhododendron shrubs (RS), Fir–larch forests 8.4 16 dominated by Rhododendron nitidulum, Rh. flavoflorum, Mixed spruce–larch– 4.7 13 Salix sp. and Dasiphora fruticosa. Additionally, there are a birch Forests few tiny patches of alpine meadows, dominated by Ko- Oak thickets 8.5 27 bresia setchwanensis, Polygonum viviparum, Potentilla dis- Pine forests 3.4 20 color and Hemiphragma heterophyllum, and they are gener- Rhododendron shrubs 3.5 8 ally enclosed by other five habitats. Field survey Surveys mainly took place between 0900–1700 on We implemented two different survey techniques to es- days without rain or snow. While surveying, a team of timate relative abundances of buff-throated partridges, as three people walked at a pace of about 2 km/hr, search- follows: ing and recording feathers within about 0.5 m beside each (1) Autumn and winter survey.- Between August and side of the transect. We excluded feathers identified at March, it was difficult to count buff-throated partridges roosting sites (i.e., large amount of droppings found di- directly (except for those living around the monastery rectly below trees), due to the objective of examining the and the small sacred mountain, see Xu et al. 2011), owing general habitat rather than the specific roosting habitat 316 Y. Xu et al. used by buff-throated partridges. ples detected in different habitats differed signifi- (2) Spring survey (April to June).- In spring, it tended cantly from expected (χ2 = 9.741, df = 4, p = 0.045), to be relatively easy to detect buff-throated partridges via indicating that buff-throated partridges had pref- their calls. Therefore, we used the point-count technique erences for using some habitats over others. The in which observers recorded birds heard from stationary points positioned along a transect (Jones 1998). To stimu- analysis further revealed that buff-throated par- late call responses, playbacks were introduced into the tridges preferred fir–larch forests, and avoided survey. pine forests (Fig. 2 A). We established 84 point stations (Table 2) in ten tran- During the winter months, we recorded 56 sects totalling 22.5 km in length, which were based on the feather samples. There was no monthly difference nine transects sited in the autumn and winter survey, but in the numbers of feather samples across habitats were modified to place point stations more effectively. (Fisher’s exact test, p = 0.447). Data were pooled Point stations were positioned approximately every 250 m along a transect route following the suggested criterion and analysis showed that buff-throated partridge (Bibby et al. 1998). We ensured all stations at least were habitat use differed from the expected (χ2 = 9.520, 125 m from habitat edges. We scheduled the survey each df = 4, p = 0.049): they preferred oak thickets, with month, undertaking all fieldwork between 0730–1740 on an obvious avoidance of pine forests (Fig.
Load more

Recommended publications
  • Two New Chrysomyxa Rust Species on the Endemic Plant, Picea Asperata in Western China, and Expanded Description of C
    Phytotaxa 292 (3): 218–230 ISSN 1179-3155 (print edition) http://www.mapress.com/j/pt/ PHYTOTAXA Copyright © 2017 Magnolia Press Article ISSN 1179-3163 (online edition) https://doi.org/10.11646/phytotaxa.292.3.2 Two new Chrysomyxa rust species on the endemic plant, Picea asperata in western China, and expanded description of C. succinea JING CAO1, CHENG-MING TIAN1, YING-MEI LIANG2 & CHONG-JUAN YOU1* 1The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, China 2Museum of Beijing Forestry University, Beijing 100083, China *Corresponding author: [email protected] Abstract Two new rust species, Chrysomyxa diebuensis and C. zhuoniensis, on Picea asperata are recognized by morphological characters and DNA sequence data. A detailed description, illustrations, and discussion concerning morphologically similar and phylogenetically closely related species are provided for each species. From light and scanning electron microscopy observations C. diebuensis is characterized by the nailhead to peltate aeciospores, with separated stilt-like base. C. zhuoni- ensis differs from other known Chrysomyxa species in the annulate aeciospores with distinct longitudinal smooth cap at ends of spores, as well as with a broken, fissured edge. Analysis based on internal transcribed spacer region (ITS) partial gene sequences reveals that the two species cluster as a highly supported group in the phylogenetic trees. Correlations between the morphological and phylogenetic features are discussed. Illustrations and a detailed description are also provided for the aecia of C. succinea in China for the first time. Keywords: aeciospores, molecular phylogeny, spruce needle rust, taxonomy Introduction Picea asperata Mast.is native to western China, widely distributed in Qinghai, Gansu, Shaanxi and western Sichuan.
    [Show full text]
  • 1471-2148-10-132.Pdf
    Shen et al. BMC Evolutionary Biology 2010, 10:132 http://www.biomedcentral.com/1471-2148/10/132 RESEARCH ARTICLE Open Access AResearch mitogenomic article perspective on the ancient, rapid radiation in the Galliformes with an emphasis on the Phasianidae Yong-Yi Shen1,2,3, Lu Liang1,2,3, Yan-Bo Sun1,2,3, Bi-Song Yue4, Xiao-Jun Yang1, Robert W Murphy1,5 and Ya- Ping Zhang*1,2 Abstract Background: The Galliformes is a well-known and widely distributed Order in Aves. The phylogenetic relationships of galliform birds, especially the turkeys, grouse, chickens, quails, and pheasants, have been studied intensively, likely because of their close association with humans. Despite extensive studies, convergent morphological evolution and rapid radiation have resulted in conflicting hypotheses of phylogenetic relationships. Many internal nodes have remained ambiguous. Results: We analyzed the complete mitochondrial (mt) genomes from 34 galliform species, including 14 new mt genomes and 20 published mt genomes, and obtained a single, robust tree. Most of the internal branches were relatively short and the terminal branches long suggesting an ancient, rapid radiation. The Megapodiidae formed the sister group to all other galliforms, followed in sequence by the Cracidae, Odontophoridae and Numididae. The remaining clade included the Phasianidae, Tetraonidae and Meleagrididae. The genus Arborophila was the sister group of the remaining taxa followed by Polyplectron. This was followed by two major clades: ((((Gallus, Bambusicola) Francolinus) (Coturnix, Alectoris)) Pavo) and (((((((Chrysolophus, Phasianus) Lophura) Syrmaticus) Perdix) Pucrasia) (Meleagris, Bonasa)) ((Lophophorus, Tetraophasis) Tragopan))). Conclusions: The traditional hypothesis of monophyletic lineages of pheasants, partridges, peafowls and tragopans was not supported in this study.
    [Show full text]
  • 2011, Article ID 423938, 16 Pages Doi:10.4061/2011/423938
    SAGE-Hindawi Access to Research International Journal of Evolutionary Biology Volume 2011, Article ID 423938, 16 pages doi:10.4061/2011/423938 Research Article A Macroevolutionary Perspective on Multiple Sexual Traits in the Phasianidae (Galliformes) Rebecca T. Kimball, Colette M. St. Mary, and Edward L. Braun Department of Biology, University of Florida, P.O. Box 118525, Gainesville, FL 32611, USA Correspondence should be addressed to Rebecca T. Kimball, [email protected]fl.edu Received 2 October 2010; Accepted 26 February 2011 Academic Editor: Rob Kulathinal Copyright © 2011 Rebecca T. Kimball et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Traits involved in sexual signaling are ubiquitous among animals. Although a single trait appears sufficient to convey information, many sexually dimorphic species exhibit multiple sexual signals, which may be costly to signalers and receivers. Given that one signal may be enough, there are many microevolutionary hypotheses to explain the evolution of multiple signals. Here we extend these hypotheses to a macroevolutionary scale and compare those predictions to the patterns of gains and losses of sexual dimorphism in pheasants and partridges. Among nine dimorphic characters, including six intersexual signals and three indicators of competitive ability, all exhibited both gains and losses of dimorphism within the group. Although theories of intersexual selection emphasize gain and elaboration, those six characters exhibited greater rates of loss than gain; in contrast, the competitive traits showed a slight bias towards gains. The available models, when examined in a macroevolutionary framework, did not yield unique predictions, making it difficult to distinguish among them.
    [Show full text]
  • Genetic Diversity and Conservation of Picea Chihuahuana Martínez: a Review
    Vol. 13(28), pp. 2786-2795, 9 July, 2014 DOI: 10.5897/AJB2014.13645 Article Number: CADB48845877 ISSN 1684-5315 African Journal of Biotechnology Copyright © 2014 Author(s) retain the copyright of this article http://www.academicjournals.org/AJB Review Genetic diversity and conservation of Picea chihuahuana Martínez: A review Quiñones-Pérez, Carmen Zulema1, Sáenz-Romero, Cuauhtémoc2 and Wehenkel, Christian1* 1Institute of Forestry and Wood Industry, Universidad Juárez del Estado de Durango, Durango, México. 2Institute of Agricultural and Forestry Research, Universidad Michoacana de San Nicolás de Hidalgo, Michoacán, México. Received 20 January, 2014; Accepted 16 June, 2014 The conservation of genetic diversity in tree populations is an essential component of sustainable forest management. Picea chihuahuana Martínez is an endemic conifer species in Mexico and is considered to be endangered. P. chihuahuana covers a total area of no more than 300 ha at the Sierra Madre Occidental, a mountain range that harbor a high diversity of tree species. There are 40 populations of the species that have been identified in the region, and it cannot be found elsewhere. These populations form clusters within gallery forests and are usually associated with eight other tree genera. The P. chihuahuana community is mostly well preserved. Owing to its remarkable characteristics and high conservation value, P. chihuahuana has been the subject of several studies aimed at learning more about the genetic structure, ecology and potential effects of climate change. However, the overall applicability of such studies is to confirm a dataset to develop management tools to help decision makers and to implement preservation and conservation strategies using genetic diversity.
    [Show full text]
  • A High-Quality Assembly Reveals Genomic Characteristics, 1
    A High-Quality Assembly Reveals Genomic Characteristics, 1 Phylogenetic Status and Causal Genes for White Feather of 2 Indian Peafowl shaojuan Liu South China Agricultural University College of Animal Science hao Chen Jiangxi Science and Technology Normal University School of Life Science jing Ouyang Jiangxi Science and Technology Normal University School of Life Science min Huang South China Agricultural University College of Animal Science hui Zhang South China Agricultural University College of Animal Science sumei Zheng South China Agricultural University College of Animal Science suwang Xi Jiangxi Agricultural University College of Animal Science and Technology hongbo Tang Jiangxi Science and Technology Normal University School of Life Science yuren Gao Jiangxi Science and Technology Normal University School of Life Science yanpeng Xiong Jiangxi Science and Technology Normal University School of Life Science di Cheng Jiangxi Agricultural University College of Animal Science and Technology kaifeng Chen Jiangxi Agricultural University College of Animal Science and Technology bingbing Liu South China Agricultural University College of Animal Science wanbo Li Jimei University xueming Yan Jiangxi Science and Technology Normal University School of Life Science huirong Mao ( [email protected] ) Jiangxi Agricultural University https://orcid.org/0000-0003-2588-1521 jun Ren South China Agricultural University College of Animal Science Research Keywords: Indian peafowl, Genome assembly, Phylogeny, PMEL, White feather Posted Date: July
    [Show full text]
  • Evaluation of a Density Index for Territorial Male Hazel Grouse Bonasa Bonasia in Spring and Autumn
    Ornis Fennica 68 :57-65. 1991 Evaluation of a density index for territorial male Hazel Grouse Bonasa bonasia in spring and autumn Jon E. Swenson Swenson, J. E., Department of Zoology, University of Alberta, Edmonton, Alberta T6G 2E9, Canada, and Swedish Environmental Protection Agency, Grimsö Wildlife Research Station, S-730 91 Riddarhyttan, Sweden (correspondence to Swedish address) . Received 14 September 1990, accepted 10 January 1991 A density index for territorial male Hazel Grouse Bonasa bonasia in spring and au- tumn is presented and evaluated. One whistles with a hunter's whistle every 30 seconds for 6 minutes from census points located at 150-m intervals within the area to be censused, and responding Hazel Grouse are counted. Counts were conducted throughout days with little or no wind. The number of counted males was significantly and linearly correlated with the number of known territorial males on an intensive study area. There, 82% of the territorial males responded and were counted. Response rate appeared to be independent of density, based on counts in areas with a 20-fold variation in densities. When censuses were repeated, both results were similar. Within the conditions of these counts, no effects of weather or date were found. However, Hazel Grouse responded less at midday. Using this method, one can count Hazel Grouse at a rate of about 5 minutes per ha along transects and 5-9 minutes per ha on blocks of habitat, depending on plot size. I recommend that censuses be conducted during 4-5 weeks prior to laying in spring and during 4-5 weeks after brood dissolution in autumn .
    [Show full text]
  • Early Holocene Chicken Domestication in Northern China
    Early Holocene chicken domestication in northern China Hai Xianga, Jianqiang Gaob, Baoquan Yuc, Hui Zhoud, Dawei Caid, Youwen Zhanga, Xiaoyong Chena, Xi Wanga, Michael Hofreitere,1, and Xingbo Zhaoa,1 aNational Engineering Laboratory for Animal Breeding, Ministry of Agricultural Key Laboratory of Animal Genetics, Breeding, and Reproduction, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; bHebei Provincial Institute of Cultural Relic, Shijiazhuang 050031, China; cXushui County Office for Preservation of Ancient Monuments, Xushui 072550, China; dAncient DNA Laboratory, Research Center for Chinese Frontier Archaeology, College of Life Science, Jilin University, Changchun 130023, China; eFaculty of Mathematics and Natural Sciences, Institute for Biochemistry and Biology, University of Potsdam, 14476 Potsdam, Germany; and Department of Biology, University of York, Heslington, York YO10 5DD, United Kingdom Edited by Elizabeth Matisoo-Smith, Otago School of Medical Sciences, Dunedin, New Zealand, and accepted by the Editorial Board October 23, 2014 (received for review June 24, 2014) Chickens represent by far the most important poultry species, yet of chicken domestication in particular regions over the world the number, locations, and timings of their domestication have have also been worked out using ancient DNA analysis (14–17). remained controversial for more than a century. Here we report However, the oldest chicken sequences analyzed to date are only ancient mitochondrial DNA sequences from the earliest archaeo- around 4,000 y old, substantially postdating the beginning of logical chicken bones from China, dating back to ∼10,000 B.P. The chicken domestication. results clearly show that all investigated bones, including the old- Therefore, we chose 39 ancient chicken bones from three est from the Nanzhuangtou site, are derived from the genus Gal- archaeological sites in the area of the Yellow River (Cishan, lus, rather than any other related genus, such as Phasianus.
    [Show full text]
  • Habitat Preference of the Sole Wild Population of Francolinus Bicalcaratus Ayesha in the Palearctic: Implications for Conservation and Management
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by I-Revues Revue d’Ecologie (Terre et Vie), Vol. 71 (3), 2016 : 288-297 HABITAT PREFERENCE OF THE SOLE WILD POPULATION OF FRANCOLINUS BICALCARATUS AYESHA IN THE PALEARCTIC: IMPLICATIONS FOR CONSERVATION AND MANAGEMENT 1* 2 1 3 Saâd HANANE , Nabil ALAHYANE , Najib MAGRI , Mohamed-Aziz EL AGBANI 3 & Abdeljebbar QNINBA 1 Forest Research Center, High Commission for Water, Forests and Desertification Control, Avenue Omar Ibn El Khattab, BP 763, 10050, Rabat-Agdal, Morocco. 2 Faculté des Sciences de Rabat, 4 Avenue Ibn Battouta, BP 1014 RP, 10090, Agdal-Rabat, Morocco. 3 Université Mohammed V-Agdal, Institut Scientifique de Rabat, Avenue Ibn Battouta, BP 703, 10090, Agdal-Rabat, Morocco. * Corresponding author. E-mail : [email protected] ; phone: +212 660 125799 ; Fax: +212 537 671151 RÉSUMÉ.— Préférence d’habitat de la seule population sauvage de Francolinus bicalcaratus ayesha dans le Paléarctique : implications pour sa conservation et sa gestion.— Le Francolin à double éperon (Francolinus bicalcaratum ayesha) est un oiseau en danger critique d’extinction et endémique du Maroc, où il habite les forêts de chêne-liège. Ses populations ont été réduites principalement en raison de la chasse et de la destruction des habitats. La caractérisation de l’habitat utilisé par ces oiseaux indigènes peut optimiser les programmes futurs de réintroduction. La méthode de détection auditive a été utilisée sur des transects pour localiser les mâles chanteurs. Nous avons analysé les facteurs qui déterminent la présence du Francolin à double éperon dans le Nord-Ouest du Maroc en considérant 13 variables explicatives.
    [Show full text]
  • The Occurrence of Hazel Grouse in the Boreal Forest
    Acta Universitatis Agriculturae Sueciae SlLVESTRlA 1 5 8 vltR ,C f JLto « SLU The Occurrence of Hazel Grouse in the Boreal Forest Effects of habitat composition at several spatial scales Johan Åberg S w ed ish university of Agricultural Sc ie n c e s \SLU </M , ^ *S U The occurrence of hazel grouse in the boreal forest: effects of habitat composition at several spatial scales Johan Åberg Akademisk avhandling som for vinnande av filosofie doktorsexamen kommer att offentligen försvaras i Sal FU 26, Undervisningshuset, SLU, Uppsala, fredagen den 3 november 2000, kl. 10.00. Abstract This thesis presents data on factors determining the occurrence and dynamics of hazel grouse populations at several spatial scales in five landscapes with different management regimes. In a forested area with a low degree of habitat variation the relationship between occurrence of hazel grouse and type of habitat was best explained at scales equal or larger than the home range, compared to smaller spatial scales. At this spatial scale the hazel grouse preferred spruce stands 20-69 years old and those older than 90 years, having 5-40% deciduous trees. More specifically the presence of hazel grouse in a habitat patch was positively influenced by a high amcunt of vertical ground cover, rich field layer vegetation and the presence of alder. At the landscape scale the occurrence of hazel grouse in habitat patches in intensively managed landscapes was negatively affected by increasing distance between suitable habitats both in an agriculture-dominated landscape and in a forest-dominated landscape. The threshold distances for hazel grouse movements were about 200 m in the agricultural landscape and about 10 times longer in the forested landscape, suggesting a strong effect of different types of matrix.
    [Show full text]
  • Ruffed and Hazel Grouse
    Grouse Bibliography Revision date: 6 December 2013 Check for newer version Compiled by Donald H. Wolfe George M. Sutton Avian Research Center Organized by genus Bonasa and Tetrastes Centrocercus Dendragapus and Falcipennis Lagopus Tetrao and Lyrurus Tympanuchus general grouse related topics Note: I would welcome any other citations not listed here or links to other grouse- related bibliographical sources. Also, please alert me of any errors that are detected. This bibliography is always a “work in progress”, and is updated as new information is available and time allows. Bonasa and Tetrastes (Ruffed, Hazel, and Chinese Grouse) Aberg, J. 1996. Effects of habitat fragmentation on Hazel Grouse (Bonasa bonasia) in boreal landscapes. Swedish University of Agricultural Sciences, Department of Wildlife Ecology, Report 32. 69pp. Aberg, J. 2000. The occurrence of Hazel Grouse in the boreal forest; effects of habitat composition at several spatial scales. Ph. D. dissertation. Swedish University of Agricultural Science, Uppsala. 108pp. Aberg, J., G. Jansson, J. E. Swenson, and P. Angelstam. 1995. The effect of matrix on the occurrence of Hazel Grouse (Bonasa bonasia) in isolated habitat fragments. Oecologia 103:265-269. 1 Aberg, J., G. Jansson, J. E. Swenson, and P. Angelstam. 1996. The effect of matrix on the occurrence of Hazel Grouse in isolated habitat fragments. Grouse News 11:22. Aberg, J., G. Jansson, J. E. Swenson, and G. Mikusinski. 2000. Difficulties in detecting habitat selection by animals in generally suitable areas. Wildlife Biology 6:89- 99. Aberg, J, J. E. Swenson, and H. Andren. 2000. The dynamics of Hazel Grouse (Bonasa bonasia L.) occurrence in habitat fragments.
    [Show full text]
  • Table 7: Species Changing IUCN Red List Status (2012-2013)
    IUCN Red List version 2013.2: Table 7 Last Updated: 25 November 2013 Table 7: Species changing IUCN Red List Status (2012-2013) Published listings of a species' status may change for a variety of reasons (genuine improvement or deterioration in status; new information being available that was not known at the time of the previous assessment; taxonomic changes; corrections to mistakes made in previous assessments, etc. To help Red List users interpret the changes between the Red List updates, a summary of species that have changed category between 2012 (IUCN Red List version 2012.2) and 2013 (IUCN Red List version 2013.2) and the reasons for these changes is provided in the table below. IUCN Red List Categories: EX - Extinct, EW - Extinct in the Wild, CR - Critically Endangered, EN - Endangered, VU - Vulnerable, LR/cd - Lower Risk/conservation dependent, NT - Near Threatened (includes LR/nt - Lower Risk/near threatened), DD - Data Deficient, LC - Least Concern (includes LR/lc - Lower Risk, least concern). Reasons for change: G - Genuine status change (genuine improvement or deterioration in the species' status); N - Non-genuine status change (i.e., status changes due to new information, improved knowledge of the criteria, incorrect data used previously, taxonomic revision, etc.) IUCN Red List IUCN Red Reason for Red List Scientific name Common name (2012) List (2013) change version Category Category MAMMALS Nycticebus javanicus Javan Slow Loris EN CR N 2013.2 Okapia johnstoni Okapi NT EN N 2013.2 Pteropus niger Greater Mascarene Flying
    [Show full text]
  • An Updated List of Species Used in Tree-Ring Research
    TREE-RING BULLETIN, Vol. 53, 1993 AN UPDATED LIST OF SPECIES USED IN TREE-RING RESEARCH HENRI D. GRISSINO-MAYER Laboratory of Tree-Ring Research University of Arizona Tucson, AZ 85721, U.S.A. ABSTRACT During the past 100 years, researchers have investigated the potential of hundreds of tree and shrub species for use in applications of tree-ring research. Although several lists of species known to crossdate have been published, investigated species that do not crossdate are rarely included despite the usefulness of this infonnation for future research. This paper provides a list of the Latin and common names of 573 species that have been investigated in tree-ring research, infor­ mation on species known to crossdate, and information on species with measurement and/or chronology data in the International Tree-Ring Data Bank. In addition, a measure of the suitability of a species for future tree-ring applications, the Crossdating Index (CDI), is developed and pro­ posed for standard usage. 1n den letzten hundert J ahren haben Forscher das Potential von hunderten von Baum- und Buscharten fi.ir die Anwendung in der Jahresring-Forschung untersucht. Zahlreiche Listen mit Arten, von denen man wei~, da~ sie zeitlich korrespondieren, sind bereits veroffentlicht worden, dagegen sind untersuchte Arten, die nicht zeitlich korresponclieren, selten in Publikationen beriick­ sichtigt worden, obwohl diese Informationen fi.ir die kiinftige Forschung nutzvoll sein konnten. Dieser Artikel legt eine Liste der lateinischen und der gemeinen Narnen von 573 Arten vor, die im Rahmen der Jahresring-Forschung untersucht worden sind, Inforrnationen Uber Arten, die bekan­ nterweise zeitlich korrespondieren sowie Informationen iiber Arten mit Ma~- und/oder Chronologiedaten in der intemationalen Jahresring-Datenbank (International Tree-Ring Data Bank).
    [Show full text]