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D. Pejnović, K. Krapinec, M. Slamar: LOVCI U HRVATSKOJ KAO SOCIJALNO-GEOGRAFSKA SKUPINA ... Šumarski list br. 9–10, CXXXIV (2010), 461-474 settlement (r = 0,90; p
IZVORNI I ZNANSTVENI ČLANCI – ORIGINAL SCIENTIFIC PAPERS UDK 630* 114.6 + 411 (001) Šumarski list br. 9–10, CXXXIV (2010), 475-486 VARIATIONS OF CARABID BEETLE AND ANT ASSEMBLAGES, AND THEIR MORPHO-ECOLOGICAL TRAITS WITHIN NATURAL TEMPERATE FORESTS IN MEDVEDNICA NATURE PARK RAZLIKE U SASTAVU I MORFOLOŠKO-EKOLOŠKIM ZNAČAJKAMA MRAVA I TRČAKA U PRIRODNIM ŠUMAMA NA PODRUČJU PARKA PRIRODE MEDVEDNICA Lucija ŠERIĆ JELASKA 1 , Ana JEŠOVNIK 1 , Sven D. JELASKA 2 , Aljoša PIRNAT 3 , Mladen KUČINIĆ 1 , Paula DURBEŠIĆ 1 SUMMARY: The aim of this study was to investigate responses of ant and carabid assemblages and their morpho-ecological traits to habitat differences within natural temperate forests in Medvednica Nature Park. To quantify habitat differences in examined areas, both structural heterogeneity of the vegetation and taxonomic diversity of plants were measured on six plots. Habitat complexity was quantified using four habitat characteristics within the site: tree canopy cover; shrub canopy cover; ground herbs and leaf litter cover. Ants and carabids were sampled using pitfall traps. Ant species richness and abundance, unlike carabid species richness were positively correlated with habitat complexity, especially with leaf litter cover on plots. The responses of insects morpho-ecological traits to habitat were recorded, with more large bodied carabids present in more complex site and higher abundance of opportunist ant species in more open sites with low complexity of vegetation. Higher dominance of certain carabid species at the lower plots then those on the top of the mountain, suggest competitive exclusion, confirming lower areas as more stable. Species adapted to colder climate, that inhabit higher elevations such as flightless forest specialist Cychrus caraboides and Carabus irregularis, and boreo-montane ant species Camponotus herculeanus, are less competent to colonize lower areas. Furthermore, they may not survive severe instability of their habitats, especially in a changing climate. Overall results suggest that conservation issues need to be focused on preserving stability and structural complexity of forest habitat in summit areas of the mountain. Key words: biodiversity, vegetation structure, litter, altitude, nature conservation, forest habitat Mountain landscapes usually offer steep gradients for a wide range of environmental parameters (i.e. tem- 1 Dr. sc.Lucija Šerić Jelaska, dipl. prof. Ana Ješovnik, prof. dr. sc. Mladen Kučinić, prof. dr. sc. Paula Durbešić, Division of Biology (*Group for Systematic Zoology & Entomology), Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, Croatia, Phone: +385 1 4877711; Fax: +385 1 4826260, e-mail: slucija@zg.biol.pmf.hr 2 Doc. dr. sc. Sven D. Jelaska, Division of Biology (*Group for Terrestrial biodiversity), Faculty of Science, University of Zagreb, Marulićev trg 20, 10000 Zagreb, Croatia 3 Mr. sc. Aljoša Pirnat, Groharjeva 18, SI-1241 Kamnik, Slovenia INTRODUCTION – Uvod perature, precipitation, etc.), what is reflected in the adaptation and distribution of different types of organisms and ecological communities that occupy different positions along these gradients (review in Hodkinson 2005). Many of these environmental factors are multifaceted and interlinked in defining overall structural complexity of insect habitats, which Hodkinson (2005) has found to decrease with increasing altitude. The latter affects not only the species richness but also the species composition of insect communities (Whittaker 1952 475
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IZ INOZEMNOG ŠUMARSTVA FROM FOREIG
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52 % sastojina je IX. dobnog razred
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cesta, a samo 5 % na panju; tu se r
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aktiviranje tržišta vrijednog oko
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drvo, Stalnoj komisiji EU-e za šum
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Csaba Matyas, Gregor Božič, Mlade
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namjenu, ovisno što se prioritetno
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IZLOŽBE - EXHIBITIONS JESEN U LICI
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Slijeva: gosp. Mario Čopor, mr. sc
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Šumarskoga lista prof. dr. sc. Bra
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