Probe - Animal Science最新文献

Intraguild predation and cannibalism between two co-occurring ladybird species (Coccinella septempunctata and Menochilus sexmaculatus): A fight for supremacy 两种共生瓢虫（Coccinella septempunctata和Menochilus sexmaculatus）之间的群内捕食和食人行为：争夺霸主地位

Probe - Animal Science Pub Date : 2023-12-26 DOI: 10.18686/pas.v5i1.1781

Monalisa Monalisa, Ahmad Pervez

{"title":"Intraguild predation and cannibalism between two co-occurring ladybird species (Coccinella septempunctata and Menochilus sexmaculatus): A fight for supremacy","authors":"Monalisa Monalisa, Ahmad Pervez","doi":"10.18686/pas.v5i1.1781","DOIUrl":"https://doi.org/10.18686/pas.v5i1.1781","url":null,"abstract":"Coccinella septempunctata L. (C7) and Menochilus sexmaculatus (Fabricius) (Ms) are aphidophagous ladybirds (Coleoptera: Coccinellidae), which dominates the ladybird fauna of Oriental region. Since these species co-occur and are highly predaceous on various aphids, it was hypothesized that in the scarcity or absence of aphids, i.e., extraguild prey, one ladybird species will start attacking and killing the other one, which will endanger their co-occurrence. Thus, we aim to determine, which ladybirds’ larvae will subdue the other; their attack rates (rate at which a superior individual attacks the inferior one), escape rates (rate at which an inferior individual escapes from the attack of superior one) and predation rates (rate at which a superior individual eats the inferior one) were investigated, as they indulged in cannibalism and intraguild predation. Larvae of C7 were slightly bigger and heavier than those of Ms, thereby they gained a slight competitive advantage. This enabled C7 a better attacker and an escapist when confronted with larvae of Ms in a predatory guild, which resulted in lesser larval mortality due to intraguild predation by Ms larvae. However, C7 successfully preyed upon the larvae of Ms. The highest rate of cannibalism and intraguild predation was executed by C7 which made it a potent cannibal and an intraguild predator. Despite being outplayed by C7, the inferior Ms larvae didn’t suffer much loss during the intraguild combat due to their armoured morphological features in the form of spines and rough texture. This is the reason why Ms still exists as the second most commonly occurring ladybird in the field.","PeriodicalId":148033,"journal":{"name":"Probe - Animal Science","volume":"52 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139155174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Conservation status of Bengal tiger Panthera tigris tigris in the earth’s only mangrove tigerland: A review of efforts and challenges 地球上唯一的红树林老虎地孟加拉虎的保护现状:努力与挑战的回顾

Probe - Animal Science Pub Date : 2023-09-22 DOI: 10.18686/pas.v5i1.1777

Jayanta Kumar Mallick

{"title":"Conservation status of Bengal tiger Panthera tigris tigris in the earth’s only mangrove tigerland: A review of efforts and challenges","authors":"Jayanta Kumar Mallick","doi":"10.18686/pas.v5i1.1777","DOIUrl":"https://doi.org/10.18686/pas.v5i1.1777","url":null,"abstract":"Sundarban is the earth’s largest contiguous ‘mangrove forest’ (‘Bādābān’) designated as protected or conservation areas including biosphere reserve, tiger reserve, core area, critical tiger habitat, primitive (wilderness) zone, national park, wildlife sanctuaries, buffer area and reserved forests, covering 10,277 km2 forest area [4260 km2 (41.45%) in India and 6017 km2 (58.55%) in Bangladesh]. This natural biodiversity hotspot is the only mangrove tigerland and the ‘last stronghold’ of Panthera tigris tigris with a camera trap-based population estimate of 214 (100 in Indian Sundarbans and 114 in Bangladesh Sundarbans) supported by a creek (sign) survey. Globally, Sundarban is a prioritised class I tiger conservation landscape extending over 5304 km2 or 51.6% of total terrestrial and aquatic mangrove habitat in the region, which is facing emergent conservation challenges due to natural and anthropogenic threats. Several conservation actions have been executed to stabilise and increase the tiger population. There is cause for ‘cautious future optimism’ since the trend of historically high rates of mangrove clearing and degradation has slowed down and tiger population in the Sundarban mangroves has slightly increased and remains stable during the last three enumerations (2018–2022) in India (the results of the current camera-based census in Bangladesh counterpart are to be announced on 29 July 2024), which can be attributed to some positive improvements of tiger habitat management.","PeriodicalId":148033,"journal":{"name":"Probe - Animal Science","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136060910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On Greta Gaard’s critical ecofeminist animal research 格蕾塔·加德批判生态女性主义动物研究

Probe - Animal Science Pub Date : 2023-09-14 DOI: 10.18686/pas.v5i1.1780

Yaxue Wang, Qian Zhao

引用次数: 0

A review and field verification of avian diversity and habitat use in the greater Sundarbans of India, Bangladesh and their hinterland 对印度、孟加拉国大孙德尔本斯及其腹地鸟类多样性和生境利用的审查和实地核查

Probe - Animal Science Pub Date : 2023-08-31 DOI: 10.18686/pas.v5i1.1778

Jayanta Kumar Mallick

{"title":"A review and field verification of avian diversity and habitat use in the greater Sundarbans of India, Bangladesh and their hinterland","authors":"Jayanta Kumar Mallick","doi":"10.18686/pas.v5i1.1778","DOIUrl":"https://doi.org/10.18686/pas.v5i1.1778","url":null,"abstract":"The world-famous greater Sundarbans, the largest single block of tidal halophytic mangrove forest in the world and endangered ecosystem located in the Bengal delta, is now confined to 10,277 km2conservation areas in India (4260 km2) and Bangladesh (6017 km2) over 250 odd-islands, designated as the Natural World Heritage-cum-Ramsar Sites of ornithological importance. The Sundarbans is fringed by 11,936.26 km2 reclaimed agricultural fields/human settlements [‘Sundarbans Transition Zone’ (STZ), India and Ecologically Critical Areas (ECAs) plus Sundarbans Impact Zone (SIZ), Bangladesh]. This highly productive ecosystem provides diverse and abundant floral and faunal food resources, having high caloric concentrations, for the aves. A comprehensive study was conducted during 2019–2022 to bridge the knowledge-gaps of the avian diversity and habitat use through structural review of published and grey literature as well as field-based rapid assessment in the potential sites. 598 species, classified under 23 orders, 85 families and 277 genera, including seven extinct and about 40 old records, have been recorded in the study area. The terrestrial, arboreal and aquatic habitats are conveniently utilised by 32% resident and 68% migratory (summer and winter) birds for meeting their biological needs. 32.27% of them are commonly sighted and 67.73% rarely confronted. Considering the present biotic and abiotic threats, the rare birds are of high priority for future conservation actions.","PeriodicalId":148033,"journal":{"name":"Probe - Animal Science","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122866573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0