Emu-Austral Ornithology最新文献_第5页

2023 BirdLife Australia Fellow Citation 2023年澳大利亚鸟类联盟Fellow Citation

IF 1.3 4区生物学

Emu-Austral Ornithology Pub Date : 2023-06-28 DOI: 10.1080/01584197.2023.2226338

A. Bennett

引用次数: 0

Mitigation of seabird bycatch in New Zealand squid trawl fisheries provides hope for ongoing solutions 在新西兰鱿鱼拖网渔业中，减少海鸟附带捕获为持续的解决方案提供了希望

IF 1.3 4区生物学

Emu-Austral Ornithology Pub Date : 2023-06-05 DOI: 10.1080/01584197.2023.2214580

K. Reid, G. Baker, R. Wells

{"title":"Mitigation of seabird bycatch in New Zealand squid trawl fisheries provides hope for ongoing solutions","authors":"K. Reid, G. Baker, R. Wells","doi":"10.1080/01584197.2023.2214580","DOIUrl":"https://doi.org/10.1080/01584197.2023.2214580","url":null,"abstract":"ABSTRACT Although there is an increasing awareness of the high rates of seabird bycatch in trawl fisheries globally, there is relatively limited implementation of effective mitigation measures. Seabirds that are attracted to the stern of the trawl vessel to feed on fish-waste can be drowned or injured when they collide with warps/cables or when they become entangled in nets. Managing fish-waste discharge (processing offal and discards) and limiting access to it by scaring birds have been identified as the most effective measures to reduce seabird mortality from collisions with warps. New Zealand’s arrow squid (Nototodarus spp.) trawl fishery occurs during the austral summer and autumn when there is significant overlap with large numbers of foraging seabirds due to the proximity of breeding areas. Regulations introduced by the New Zealand government in 2007 requiring the use of devices to reduce warp strikes and operational procedures to manage fish-waste were independently implemented by the fishing industry in 2007 with the support of fishery regulators. The rate of capture of albatrosses by warps decreased from a mean of 2.9 birds per 100 tows during the period 2003 to 2006 to a mean of 0.7 birds per 100 tows after 2007. Long-term ownership of squid fishery quota catalysed the proactive engagement of the industry and has been reflected in a positive cultural shift in the attitude of fishers towards managing the risk of the capture of seabirds. Multi-sector collaboration and engagement allowed for the translation of experimental mitigation results into long-term, industrial-scale operational practices.","PeriodicalId":50532,"journal":{"name":"Emu-Austral Ornithology","volume":"4 4 1","pages":"195 - 205"},"PeriodicalIF":1.3,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81820410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Environmental effects on movement and breeding of Australasian Gannets: insights from banding records 环境对澳大利亚塘鹅运动和繁殖的影响:来自放牧记录的见解

IF 1.3 4区生物学

Emu-Austral Ornithology Pub Date : 2023-05-31 DOI: 10.1080/01584197.2023.2214581

Aurore Counilh, J. Arnould

{"title":"Environmental effects on movement and breeding of Australasian Gannets: insights from banding records","authors":"Aurore Counilh, J. Arnould","doi":"10.1080/01584197.2023.2214581","DOIUrl":"https://doi.org/10.1080/01584197.2023.2214581","url":null,"abstract":"ABSTRACT Banding has historically been the most efficient method of marking individuals to gather large datasets on bird movement, especially in seabirds which spend a large proportion of their life-cycle at sea. The Australian Bird and Bat Banding Scheme has gathered such long-term records, including for the Australasian Gannet (Morus serrator). Between 1954 and 2022, a total of 12,583 bands were deployed at seven breeding sites in Australia, of which 522 were recovered dead. An additional 325 individuals from four banding sites in New Zealand were recovered along the Australian coastline. The effects of broadscale environmental indices on movement (inferred from banding recoveries) during the post-breeding period were investigated at two colonies with the most banding effort (Pope’s Eye, Lawrence Rocks). Individuals >1 year old and those from Pope’s Eye were recovered closer to their banding site. There were negative effects of current-year Southern Oscillation Index (SOI) and 1-year lagged Southern Annular Mode (SAM) on recovery distances for Lawrence Rocks individuals, while 2-year lagged SAM positively and negatively affected recovery distance and direction, respectively, for Pope’s Eye individuals. The number of chicks banded (index of chick production) at Pope’s Eye was negatively influenced by 1-year lagged SAM and 2-year lagged SOI, while the likelihood of recoveries of first-year individuals was positively influenced by 1-year lagged SAM. The results of the present study revealed a potential effect of environmental conditions on post-breeding movement with seemingly contrasting effects between colonies, and on reproduction, highlighting the usefulness of long-term banding and recovery efforts.","PeriodicalId":50532,"journal":{"name":"Emu-Austral Ornithology","volume":"46 2 1","pages":"206 - 216"},"PeriodicalIF":1.3,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81875914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Do Olive-backed Orioles and Green Orioles hybridize in Australia? A genomic assessment with taxonomic notes 橄榄背黄鹂和绿黄鹂在澳大利亚杂交吗?带有分类学注释的基因组评估

IF 1.3 4区生物学

Emu-Austral Ornithology Pub Date : 2023-05-31 DOI: 10.1080/01584197.2023.2214573

L. Joseph, Heather G. Johnston, D. Thuo, Jéssica Fenker, A. Drew, I. Mason, C. Moritz, Anna M. Kearns

引用次数: 0

A guide to the creatures in your neighbourhood 你的邻居的生物指南

IF 1.3 4区生物学

Emu-Austral Ornithology Pub Date : 2023-05-25 DOI: 10.1080/01584197.2023.2193701

D. Potvin

引用次数: 0

Breeding ecology, population size and nest site preferences of Red-billed Tropicbirds at St Helena, South Atlantic Ocean 南大西洋圣赫勒拿岛热带红嘴鸟的繁殖生态、种群规模和巢址偏好

IF 1.3 4区生物学

Emu-Austral Ornithology Pub Date : 2023-05-14 DOI: 10.1080/01584197.2023.2205595

Annalea Beard, Renata Medeiros Mirra, Elizabeth Clingham, Leeann Henry, Robert J. Thomas, F. Hailer

{"title":"Breeding ecology, population size and nest site preferences of Red-billed Tropicbirds at St Helena, South Atlantic Ocean","authors":"Annalea Beard, Renata Medeiros Mirra, Elizabeth Clingham, Leeann Henry, Robert J. Thomas, F. Hailer","doi":"10.1080/01584197.2023.2205595","DOIUrl":"https://doi.org/10.1080/01584197.2023.2205595","url":null,"abstract":"ABSTRACT We describe the population size and breeding ecology of the Red-billed Tropicbird, Phaethon aethereus, a poorly studied pantropical seabird, at St Helena, South Atlantic. The population size of 81–246 pairs and 272–564 individuals identifies the study population as the largest colony of Red-billed Tropicbirds in the South Atlantic, but also an internationally important part of the global population. We estimated the survival from laying to fledging of 158 nests between 2004 and 2017 at only 33%, among the lowest values reported globally for the species. Most nest failures occurred during incubation, with predation identified as the predominant cause of fledging failure. Intervals between breeding attempts were longer after successful nesting attempts than failed attempts. Previous breeding interval and nest cavity fidelity further influenced the interval between breeding attempts, while the presence of replacement clutches did not. Multiple nest site and cavity characteristics were important predictors of cavity use, nest site selection and productivity. Management options for reducing mammalian predators to ensure the long-term viability of this important population at St Helena are discussed.","PeriodicalId":50532,"journal":{"name":"Emu-Austral Ornithology","volume":"7 1","pages":"185 - 194"},"PeriodicalIF":1.3,"publicationDate":"2023-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79169127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bird talk: an exploration of avian communication 鸟语:鸟类交流的探索

IF 1.3 4区生物学

Emu-Austral Ornithology Pub Date : 2023-05-03 DOI: 10.1080/01584197.2023.2190527

K. Cain

引用次数: 0

Identifying factors affecting captive breeding success in a critically endangered species 确定影响极度濒危物种圈养繁殖成功的因素

IF 1.3 4区生物学

Emu-Austral Ornithology Pub Date : 2023-04-03 DOI: 10.1080/01584197.2023.2194541

L. Bussolini, R. Crates, M. Magrath, D. Stojanović

{"title":"Identifying factors affecting captive breeding success in a critically endangered species","authors":"L. Bussolini, R. Crates, M. Magrath, D. Stojanović","doi":"10.1080/01584197.2023.2194541","DOIUrl":"https://doi.org/10.1080/01584197.2023.2194541","url":null,"abstract":"ABSTRACT Captive breeding programs are an increasingly important tool for species’ conservation efforts, but not all species reproduce well in captivity. Identifying factors that affect the reproductive success of captive populations is crucial to improving the performance and management of conservation-breeding programs, both by providing individuals for release and informing decision making. We examined breeding records collected from the long-running conservation-breeding program for the critically endangered Orange-bellied Parrot Neophema chrysogaster over an 11-year period. We examined egg hatching rate, nestling survival rate, and offspring sex ratio in response to a wide range of variables related to characteristics of individual birds, breeding events, and the captive environment. The hatch rate of eggs was higher in first clutches compared to second clutches and was lower than the wild population. The survival rate of nestlings through to fledging was variable between years but became higher and more consistent over the last five years of the study period. Variation in brood sex ratio was not related to any of the potential explanatory variables that we examined. This is one of the first studies to examine reproductive data in a long-running conservation-breeding program and shows that many common metrics do not explain reproductive variation. Our approach provides a framework for managers to investigate factors affecting reproductive success in conservation breeding programs more broadly.","PeriodicalId":50532,"journal":{"name":"Emu-Austral Ornithology","volume":"58 1","pages":"161 - 169"},"PeriodicalIF":1.3,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81604384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Reproductive biology of the Whitehead’s Broadbill (Calyptomena whiteheadi) 白头阔嘴鱼的生殖生物学研究

IF 1.3 4区生物学

Emu-Austral Ornithology Pub Date : 2023-04-03 DOI: 10.1080/01584197.2023.2193900

Necmiye Şahin Arslan, D. Muñoz, T. E. Martin

{"title":"Reproductive biology of the Whitehead’s Broadbill (Calyptomena whiteheadi)","authors":"Necmiye Şahin Arslan, D. Muñoz, T. E. Martin","doi":"10.1080/01584197.2023.2193900","DOIUrl":"https://doi.org/10.1080/01584197.2023.2193900","url":null,"abstract":"ABSTRACT Whitehead’s Broadbill, Calyptomena whiteheadi, an endemic species on the island of Borneo, has a declining population, raising the question of whether reproduction might be a factor limiting population growth. We studied breeding biology based on 52 nests in Kinabalu Park, Sabah, Malaysian Borneo in 2009–2020. Length of the egg-laying season was 99 days with a median of 22 March. Clutch size was typical of tropical songbirds at 2.0 ± 0.13 eggs (SE). Nest success was relatively high at 52%, and daily nest predation rate was relatively low at 0.013 ± 0.004 (SE). Concordantly, length of incubation and nestling periods were relatively long at 19.0 ± 0.26 d and 26.8 ± 0.3 d (SE), respectively. Similarly, the growth rate constants (K) for mass, wing length and tarsus length were slow at 0.252, 0.161 and 0.188, respectively. Slow growth might result in part from their frugivorous diet, as we show using seed traps, but they are reported to include insects in their diets and food provided to their young. Feeding effort, as reflected by the number of fruit seeds dropped below the nest, increased through the nestling period. Brooding effort of parents for nestlings was high on hatch day and decreased until Day 10–15 when it stopped. Food and parental care efforts do not seem to cause their slow growth. Ultimately, our study population has reproductive success that suggests it is not limiting population growth, but studies are needed in other locations to determine if it is a problem elsewhere.","PeriodicalId":50532,"journal":{"name":"Emu-Austral Ornithology","volume":"26 1","pages":"152 - 160"},"PeriodicalIF":1.3,"publicationDate":"2023-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85521705","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Where are you from? Isotopic tracing of juvenile Olrog’s Gulls from Mar Chiquita during the wintering season 你是哪里人?奇基塔海幼鸥越冬期的同位素追踪

IF 1.3 4区生物学

Emu-Austral Ornithology Pub Date : 2023-03-22 DOI: 10.1080/01584197.2023.2186895

Aylen María de Prinzio, Sofía Copello, J. P. Seco Pon, Alejandro D. Canepuccia, R. Mariano-Jelicich

{"title":"Where are you from? Isotopic tracing of juvenile Olrog’s Gulls from Mar Chiquita during the wintering season","authors":"Aylen María de Prinzio, Sofía Copello, J. P. Seco Pon, Alejandro D. Canepuccia, R. Mariano-Jelicich","doi":"10.1080/01584197.2023.2186895","DOIUrl":"https://doi.org/10.1080/01584197.2023.2186895","url":null,"abstract":"ABSTRACT Individual traits such as age-class can have profound effects on space utilisation by individual birds, with juvenile birds more often exhibiting dispersive movements. We studied the origin of juvenile Olrog’s Gulls Larus atlanticus, a threatened species, using stable isotopes ratios of carbon (δ13C), nitrogen (δ15N) and sulphur (δ34S). We analysed feathers from individuals captured in the wintering season at Mar Chiquita Coastal Lagoon, Argentina, and the potential trophic sources of their breeding sites at Bahía Blanca and San Blas. Mean δ13C was similar for trophic sources and mean δ15N was higher for Bahía Blanca. The δ34S showed a greater variation among prey species than among sites. The mean contributions of the main colonies resulted in assigning 37.5% individuals as from Bahía Blanca, 16.7% from San Blas, and 45.8% undetermined. Results indicate that Mar Chiquita coastal lagoon attracts juvenile Olrog’s Gulls dispersing from the two main breeding grounds of the species. This work is one of the first approaches to study the origin of dispersive juvenile larids through the application of stable isotope analysis. This isotopic approach allows obtaining trophic and movement information when it is not possible to use other tools.","PeriodicalId":50532,"journal":{"name":"Emu-Austral Ornithology","volume":"4 1","pages":"140 - 151"},"PeriodicalIF":1.3,"publicationDate":"2023-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84810930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0