Studi Morfometri Dan Tingkat Herbivori Daun Mangrove Di Segara Anakan Cilacap

Septyaningsih, Erma; Ardli, Erwin Riyanto; Widyastuti, Ani

doi:10.20884/1.sb.2014.1.2.438

Cited by 4 publications

(7 citation statements)

References 6 publications

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“…Septyaningsih ( 2014) menambahkan kandungan zat kimia dan palatabilitas juga mempengaruhi tingkat herbivori daun. Penelitian tentang herbivori daun mangrove yang sudah dilakukan (Elfriyeldi et al, 2018) dan Septyaningsih (2015) di Segara Anakan (2014). Mengingat peranan penting vegetasi mangrove, maka penelitian ini dilakukan untuk mengetahui tingkat herbivori pada spesies, ketinggian dan umur daun mangrove di Dusun Bogorame, Timbulsloko.…”

Section: Pendahuluanunclassified

TINGKAT HERBIVORI DAUN Avicennia marina (FORSSK.) VIERH DAN Rhizophora mucronata DI VEGETASI MANGROVE – TIMBULSLOKO, DEMAK

Amalia

Pramesti

Pribadi

et al. 2019

j.eng

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ABSTRAKMangrove merupakan varietas komunitas pantai tropik dan subtropik yang mampu beradaptasi dengan salinitas tertentu. Jenis Avicennia marina dan Rhizophora mucronata merupakan tegakan alami dan hasil rehabilitasi. Kegiatan konservasi di lokasi ini belum dikelola baik sehingga struktur dan komposisi bervariasi. Hal ini dapat diatasi yang salah satunya dengan herbivori sebagai parameter tingkat kerusakan ekosistem mangrove. Daun merupakan salah satu bagian tumbuhan yang mengalami perubahan bentuk karena pemangsaan. Tujuan penelitian ini untuk mengetahui tingkat herbivori daun A.marina dan R. mucronata berdasarkan perbedaan spesies, umur daun dan ketinggian pohon. Metode deskriptif digunakan dalam penelitin ini dan penentuan lokasi pengambilan sampel dengan metode purposive sampling. Sampel daun diambil dari tiga kategori ketinggian yang berbeda yaitu <1 m, >1-3 m, >3-5 m, masing-masing sebanyak 10 ulangan (pohon) untuk setiap kategori. Daun dipisahkan berdasarkan umur daun (tua atau muda) dan kondisi daun (utuh atau rusak) dan total daun diambil sebanyak 10%. Hasil penelitian menunjukan nilai rerata pada setiap jenis, umur daun dan ketinggian pohon diperoleh tingkat herbivori A. marina yaitu 4,66% (0,16% -8,93%) sampai 11,59% (2,14% -21,97%) sedangkan R. mucronata yaitu 5,23% (0,31% -9,94%) sampai 12,44% (3,50% -23,81%). ABSTRACT HERBIVORY LEVEL OF MANGROVE LEAVES Avicennia marina (FORSSK.) VIERH AND Rhizophora mucronata IN MANGROVE VEGETATION -TIMBULSLOKO, DEMAK.Mangroves are variety of tropical and subtropical coastal communities that adapt to certain salinity. Avicennia marina and Rhizophora mucronata were found in location. Conservation activities were not managed so the structure and composition varies. This can be overcome one of them with herbivory as a parameter of

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Section: Pendahuluanunclassified

TINGKAT HERBIVORI DAUN Avicennia marina (FORSSK.) VIERH DAN Rhizophora mucronata DI VEGETASI MANGROVE – TIMBULSLOKO, DEMAK

Amalia

Pramesti

Pribadi

et al. 2019

j.eng

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“…Pasang surut air laut, palatabilitas, kandungan tanin dan nitrogen daun mangrove akan memberikan pengaruh terhadap tingkat herbivori daun mangrove. Tingkat herbivori daun mangrove juga dipengaruhi oleh beberapa faktor seperti spesies, tinggi tanaman dan umur daun (Soenardjo, 2013;Septyaningsih et al, 2014…”

Section: Pendahuluanunclassified

“…Tingkat herbivori pada daun muda lebih tinggi karena daun muda mengandung serat yang lebih rendah daripada daun tua. Hasil ini sesuai dengan penelitian yang dilakukan oleh Septyaningsih et al (2014) bahwa tingkat herbivori daun muda lebih tinggi daripada daun tua karena serat yang terdapat pada daun muda lebih sedikit daripada daun tua, sehingga herbivor lebih mudah menggigit dan mencerna daun mangrove. Cooke et al (1984) menyatakan bahwa daun muda memiliki kandungan serat yang lebih rendah dibandingkan dengan daun tua, sehingga daun muda lebih disukai untuk dikonsumsi oleh herbivor.…”

Section: Hasil Dan Pembahasanunclassified

Tingkat Herbivori Daun Mangrove Rhizophora stylosa dan Avicennia marina Di Desa Pasar Banggi, Rembang, Jawa Tengah

2019

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Hutan mangrove memiliki fungsi ekologi sebagai daerah pemijahan, daerah asuhan dan daerah mencari makan. Fauna yang tinggal di hutan mangrove akan menciptakan simbiosis antara flora dan fauna mangrove, misalnya aktivitas herbivori daun. Herbivori daun mangrove dipengaruhi oleh beberapa faktor seperti spesies tanaman, tinggi tanaman dan umur daun. Penelitian ini bertujuan untuk mengetahui tingkat herbivori daun mangrove Rhizophora stylosa dan Avicennia marina berdasarkan tinggi tanaman dan umur daun pada ekosistem mangrove di Desa Pasar Banggi, Rembang, Jawa Tengah. Metode penelitian yang digunakan dalam penelitian ini adalah metode deskriptif. Metode pengambilan data yang digunakan adalah metode survei dan penentuan lokasi penelitian menggunakan metode purposive. Sampel daun diambil dari 2 spesies mangrove dominan pada ekosistem Desa Pasar Banggi yaitu Rhizophora stylosa dan Avicennia marina. Daun diambil dari 3 kategori tinggi tanaman yaitu <1 m, 1-< 3 m dan 3–5 m, masing-masing diambil 10 pohon sebagai ulangan. Daun diambil sebanyak 10 %, dipisahkan berdasarkan umur daun (muda dan tua) dan kondisi daun (utuh dan rusak). Sampel daun diolah menggunakan software ImageJ dan Measure Picture. Hasil penelitian menunjukkan rata-rata tingkat herbivori tertinggi pada daun muda Rhizophora stylosa pada tanaman dengan tinggi 3–5 m dan tertinggi pada daun tua Rhizophora stylosa pada tanaman dengan tinggi 1–< 3 m, sedangkan rata-rata tingkat herbivori tertinggi pada daun muda Avicennia marina pada tanaman dengan tinggi 1–< 3 m dan tertinggi pada daun tua Avicennia marina pada tanaman dengan tinggi 1–< 3 m. Mangrove forests have ecological functions a spawning ground, nursery ground and feeding ground. Fauna living in mangrove forests will create a symbiosis between mangrove flora and fauna, for example herbivory leaf activity. Herbivory of mangrove leaves is influenced by several factors such as plant species, plant height and leaf age. This study aims to determine the herbivory level of mangrove Rhizophora stylosa and Avicennia marina leaves based on plant height and leaf age in the mangrove ecosystem in Pasar Banggi Village, Rembang, Central Java. The research method used in this study was descriptive. The data collection method used in this study is the survey method and the determination of the location of the study using a purposive method. Leaf samples were taken from 2 dominant mangrove species in the Pasar Banggi Village ecosystem, Rhizophora stylosa and Avicennia marina. The leaves are taken from 3 plant height categories, namely <1 m, 1-<3 m and 3-5 m, each of which is taken as 10 replicates. The leaves are taken as much as 10%, then separated according to the age of the leaves (young or old) and the condition of the leaves (whole or damaged). Leaf samples were processed using ImageJ and Measure Picture software. The results showed the highest average herbivory level in young leaves of Rhizophora stylosa at plant height 3-5 m (10.11%) and highest on old leaves of Rhizophora stylosa at plant height 1-<3 m (10.67%), while the highest average herbivory level in Avicennia marina young leaves at plant height 1-<3 m (12.54%) and the highest on the old leaves of Avicennia marina at plant height 1-<3 m (11.73%).

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“…The percentage obtained was then classified based on the percentage of lost leaf area. Cooke et al (1984) in Septyaningsih et al (2014) divided the herbivory level into eight classes of damage as follows:…”

Section: Measurement Of Herbivory: Leaf Damage Levelmentioning

confidence: 99%

The impact of herbivorous insect on leaves of mangrove species Rhizophora stylosa and its relation to leaf nutrient level

Trisnawati¹,

Muryono²,

Desmawati³

2019

Biodiversitas

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Abstract. Trisnawati I, Muryono M, Desmawati I. 2019. The impact of herbivorous insect on leaves of mangrove species Rhizophora stylosa and its relation to leaf nutrient level. Biodiversitas 20: 1409-1415. Intertidal mangrove ecosystem is a very unique ecosystem which is under threat due to anthropogenic disturbances like land conversion to promote paddy cultivation and aquaculture and pollution. Increased nutrient loading from human activities is expected to have stronger responses to both mangroves and their associated herbivores. This research is aimed to investigate vulnerability of mangroves caused by herbivory of herbivorous insects, focusing on the diversity and abundance of herbivorous insects, the level of mangrove leaf damage and its relation to nutrient levels within leaves in term of nitrogen, phosphorus, potassium and water content. We observed mangrove habitats located around Institut Teknologi Sepuluh November (ITS) Campus in Surabaya, East Java dominated by Rhizophora vegetation. Herbivorous insects showed individual abundance of 15.15% of the total insects found in mangroves around the studied areas. The area of relative leaf damage in Rhizophora stylosa leaves tended to be high in sapling habitus (11.96-24.56%) compared to tree habitus (6.97-16.71%). One way ANOVA showed non-significant difference in leaf area damaged between sapling and tree habitus (F = 0.099, p-0.75), and percentage of herbivory between saplings and trees (F = 0.0007, p-0.98). Concentrations of potassium (K) was significantly higher in tree than sapling habitus, whereas leaf nutrient phosporous was significantly higher in sapling than tree habitus. Other leaf nutrients (total nitrogen and water) were relatively the same in both habitus. However, saplings contained more feeding deterrent tannins than trees. Leaf age is thought to be related to higher leaf palatability and insect herbivore nutrition in younger leaves, represented by sapling habitus.

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Studi Morfometri Dan Tingkat Herbivori Daun Mangrove Di Segara Anakan Cilacap

Cited by 4 publications

References 6 publications

TINGKAT HERBIVORI DAUN Avicennia marina (FORSSK.) VIERH DAN Rhizophora mucronata DI VEGETASI MANGROVE – TIMBULSLOKO, DEMAK

TINGKAT HERBIVORI DAUN Avicennia marina (FORSSK.) VIERH DAN Rhizophora mucronata DI VEGETASI MANGROVE – TIMBULSLOKO, DEMAK

Tingkat Herbivori Daun Mangrove Rhizophora stylosa dan Avicennia marina Di Desa Pasar Banggi, Rembang, Jawa Tengah

The impact of herbivorous insect on leaves of mangrove species Rhizophora stylosa and its relation to leaf nutrient level

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