کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5742443 1617687 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Temporal variation in bat-fruit interactions: Foraging strategies influence network structure over time
ترجمه فارسی عنوان
تنوع زمانی در تعاملات خفاش-میوه: استراتژی های تغذیه در طول زمان بر ساختار شبکه تأثیر می گذارند
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک بوم شناسی، تکامل، رفتار و سامانه شناسی
چکیده انگلیسی


- Bats' foraging strategies are important structuring of bat-fruit networks.
- Sedentary bats play crucial roles in the maintenance of network structure over time.
- Bat-fruit networks present temporal variations in size, composition and modularity.
- Bat-fruit networks are constantly robust despite temporal variation.

Mutualistic interactions, such as seed dispersal, are important for the maintenance of structure and stability of tropical communities. However, there is a lack of information about spatial and temporal variation in plant-animal interaction networks. Thus, our goal was to assess the effect of bat's foraging strategies on temporal variation in the structure and robustness of bat-fruit networks in both a dry and a rain tropical forest. We evaluated monthly variation in bat-fruit networks by using seven structure metrics: network size, average path length, nestedness, modularity, complementary specialization, normalized degree and betweenness centrality. Seed dispersal networks showed variations in size, species composition and modularity; did not present nested structures and their complementary specialization was high compared to other studies. Both networks presented short path lengths, and a constantly high robustness, despite their monthly variations. Sedentary bat species were recorded during all the study periods and occupied more central positions than nomadic species. We conclude that foraging strategies are important structuring factors that affect the dynamic of networks by determining the functional roles of frugivorous bats over time; thus sedentary bats are more important than nomadic species for the maintenance of the network structure, and their conservation is a must.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Oecologica - Volume 85, November 2017, Pages 9-17
نویسندگان
, , ,