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Wyszukujesz frazę "Conservation biology" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Diversity, distribution and threats of the Juglandaceae in Vietnam
Autorzy:
Van Sam, H.
Quang Tung, D.
Jasinska, A.K.
Rion, F.
Tuyen, P.T.
Ngoc, D.T.B.
Tam, D.T.
Bétrisey, S.
Song, Y.G.
Kozlowski, G.
Powiązania:
https://bibliotekanauki.pl/articles/2078269.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Dendrologii PAN
Tematy:
Conservation biology
relict trees
Rhoiptelea
Engelhardia
Alfaropsis
Opis:
Vietnam is one of the main centers of generic diversity for Juglandaceae worldwide. In this study, we present for the first time a province-wide distribution of all 3 subfamilies, 7 genera, and 11 Vietnamese species, and give an update on the habitats of all Vietnamese Juglandaceae species, their uses, and current threats. Juglandaceae are found throughout Vietnam. However, most species occur predominantly in the north- ern part of the country between 600 and 1200 m. Some taxa range is found extensively from sea level up to 2,500 meters above sea level. According to the IUCN Red List, Rhoiptelea chiliantha, Carya sinensis, and Pterocarya tonkinensis are threatened while Engelhardia spicata, E. serrata, Alfaropsis roxburghiana, Pterocarya stenoptera are classified as least concerned (Carya tonkinensis is threatened locally, and Engelhardia spicata var. colebrookiana and Platycarya strobilacea merit “threatened” designation in Vietnam’s Red Data Book. The most frequent threats are logging, land-use change, and habitat destruction due to artificial wood planta- tions or road construction. Until now, no conservation measures have been applied for any of the species in Vietnam, although some species occur in national parks. Our study gives an important update on the current diversity and distribution of Juglandaceae in Vietnam. We point out the need for a correct assessment of the threat status of various species on a national and international scale to protect the rarest and most endangered of them. Further research, the use of various forms of protection of individual taxa and/or their habitats, and drawing the attention of an international group of researchers to the urgent need to work together to protect biodiversity in Vietnam hot spots are necessary.
Źródło:
Dendrobiology; 2021, 86; 39-55
1641-1307
Pojawia się w:
Dendrobiology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Host plant based ecobiological attributes of a mimetic set of Nymphalids from Taki, North 24 Parganas, West Bengal: A comparative documentation
Autorzy:
Ghosh, Srinjana
Saha, Sumana
Powiązania:
https://bibliotekanauki.pl/articles/1075663.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Batesian mimicry
Conservation
Eco biology
Nymphalids
Pollinators
Opis:
Nymphalids, the largest lepidopteran family, is represented by altogether 19 species (37% of the total species abundance) from the present study site Taki, West Bengal, India, with multiple habitat profiles exposed to different anthropogenic interventions. Nymphalidae is reported to be with highest occurrence of mimicry, a naturally selected survival tool for lepidopterans. A nymphalid set, including a model [Plain Tiger: Danaus chrysippus (Linnaeus, 1758)] and a mimic component [Danaid Eggfly ♀: Hypolimnus misippus (Linnaeus, 1764)] is selected for studying the specific ecological and functional correlation among them in their natural habitat. Their comparative seasonal and habitat wise distribution shows co-existence, the unpalatable model species outnumbering the mimic, the vulnerable target, corresponding to the Batesian mimicry. The wing morphology pattern is significantly shared, though the larval and adult host plants are exclusive and species specific. The year long field observation indicates the existence of considerable degree of similarity with respect to the ecobiological details, like flight pattern, mudpuddling, resting, basking and alternative resource utilisation activities. Species specific unique foraging attributes is observed. Being potential pollinators, they play key role to maintain the wild floral diversity at landscape level. The study bears conservation value towards these nature’s artwork, acting as the biotope indicator.
Źródło:
World Scientific News; 2019, 119; 1-26
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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